1
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Carkner A, Tageldin I, Han J, Seifitokaldani A, Kopyscinski J. Impact of Temperature an Order of Magnitude Larger Than Electrical Potential in Lignin Electrolysis with Nickel. CHEMSUSCHEM 2024; 17:e202300795. [PMID: 37870894 DOI: 10.1002/cssc.202300795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Lignin, a major component of plant biomass, is a promising sustainable alternative carbon-based feedstock to petroleum as a source of valuable aromatic compounds such as vanillin. However, lignin upgrading reactions are poorly understood due to its complex and variable molecular structure. This work focuses on electrocatalytic lignin upgrading, which is efficient and sustainable at moderate temperatures and pressures and does not require stoichiometric reagents. We used a meta-analysis of published lignin conversion and product yield data to define the operating range, to select the catalyst, and then performed electrocatalytic experiments. We quantified the impact of temperature and electrical potential on the formation rate of valuable products (vanillic acid, acetovanillone, guaiacol, vanillin, and syringaldehyde). We found that increasing temperature increases their formation rate by an order of magnitude more than increasing electrical potential. For example, increasing temperature from 21 to 180 °C increases the vanillin formation rate by +16.5 mg⋅L-1 ⋅h-1 ±1.7 mg⋅L-1 ⋅h-1 , while increasing electrical potential from 0 to 2 V increases the vanillin formation rate by -0.6 mg⋅L-1 ⋅h-1 ±1.4 mg⋅L-1 ⋅h-1 .
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Affiliation(s)
- Andrew Carkner
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Canada
| | - Ingy Tageldin
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Canada
| | - Jiashuai Han
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Canada
| | - Ali Seifitokaldani
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Canada
| | - Jan Kopyscinski
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Canada
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2
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Shen Z, Shi C, Liu F, Wang W, Ai M, Huang Z, Zhang X, Pan L, Zou J. Advances in Heterogeneous Catalysts for Lignin Hydrogenolysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306693. [PMID: 37964410 PMCID: PMC10767463 DOI: 10.1002/advs.202306693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/04/2023] [Indexed: 11/16/2023]
Abstract
Lignin is the main component of lignocellulose and the largest source of aromatic substances on the earth. Biofuel and bio-chemicals derived from lignin can reduce the use of petroleum products. Current advances in lignin catalysis conversion have facilitated many of progress, but understanding the principles of catalyst design is critical to moving the field forward. In this review, the factors affecting the catalysts (including the type of active metal, metal particle size, acidity, pore size, the nature of the oxide supports, and the synergistic effect of the metals) are systematically reviewed based on the three most commonly used supports (carbon, oxides, and zeolites) in lignin hydrogenolysis. The catalytic performance (selectivity and yield of products) is evaluated, and the emerging catalytic mechanisms are introduced to better understand the catalyst design guidelines. Finally, based on the progress of existing studies, future directions for catalyst design in the field of lignin depolymerization are proposed.
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Affiliation(s)
- Zhensheng Shen
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Fan Liu
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Wei Wang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Minhua Ai
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Zhenfeng Huang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
| | - Ji‐Jun Zou
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
- Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China
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3
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Hydrogenolysis of lignin and Lignin-based molecules catalyzed by nickel and Sc(OTf)3. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2022.100729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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4
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La2O3-promoted Ni/H-ZSM-5 catalyzed aqueous-phase guaiacol hydrodeoxygenation to cyclohexanol. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Guo Z, Li L, Guo Y, Liu X, Wang Y. Size effect of Ru particles on the self-reforming-driven hydrogenolysis of lignin model compound. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00688j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Particle size always has a great influence on catalytic performance. In this work, we investigated the size effect of Ru colloids on the self-reforming-driven hydrogenolysis of lignin model compound by...
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6
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Hanson KG, Lin CH, Abu-Omar MM. Crosslinking of renewable polyesters with epoxides to form bio-based epoxy thermosets. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Hanson KG, Lin CH, Abu-Omar MM. Preparation and properties of renewable polyesters based on lignin-derived bisphenol. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Arturi K, Rohrbach T, Vogel F, Bjelić S. High Yields of Aromatic Monomers from Acidolytic Oxidation of Kraft Lignin in a Biphasic System. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Katarzyna Arturi
- Energy and Environment Division, Laboratory for Bioenergy and Catalysis, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Thomas Rohrbach
- Energy and Environment Division, Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Frédéric Vogel
- Energy and Environment Division, Laboratory for Bioenergy and Catalysis, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
- Institute of Bioenergy and Resource Efficiency, University of Applied Sciences Northwestern Switzerland (FHNW), Klosterzelgstrasse 2, 5210 Windisch, Switzerland
| | - Saša Bjelić
- Energy and Environment Division, Laboratory for Bioenergy and Catalysis, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
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9
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Catalytic C–O bond cleavage in a β-O-4 lignin model through intermolecular hydrogen transfer. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Xu J, Li M, Qiu J, Zhang XF, Yao J. Photocatalytic depolymerization of organosolv lignin into valuable chemicals. Int J Biol Macromol 2021; 180:403-410. [PMID: 33741371 DOI: 10.1016/j.ijbiomac.2021.03.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 11/25/2022]
Abstract
Catalytic conversion of lignin to certain aromatic compounds has been extensively studied but still has great challenges. Photocatalytic depolymerizing lignin is a very promising method to obtain valuable chemicals. Herein, Zn4In2S7 (ZIS)-based photocatalyst was successfully synthesized by simply combining ZIS and graphene oxide (GO). Photocatalyst ZIS-100 can efficiently depolymerize organosolv lignin into phenols and ketones. The relative content of valuable compounds in the depolymerized product was increased by 2.5 times as compared that without photocatalyst. The photocatalyst can effectively break Cβ-O bonds in 2-phenoxy-1-phenylethanol (PP-ol, a model compound) and the conversion of PP-ol is 93.27%. Mechanism studies show that the thiol groups on the surface of ZIS-100 play an important role in the formation of Cα radical intermediates. Photocatalytic cleavage of Cβ-O bond mainly follows a one-step reaction mechanism through a self‑hydrogen transfer process. This study provides a new strategy for selectively breaking Cβ-O bond in lignin to form valuable chemicals.
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Affiliation(s)
- Jie Xu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; College of Material and Chemical Engineering, Chuzhou University, Chuzhou, Anhui 239000, China
| | - Ming Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianhao Qiu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiong-Fei Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Yao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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11
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Liu X, Bouxin FP, Fan J, Budarin VL, Hu C, Clark JH. Microwave-assisted catalytic depolymerization of lignin from birch sawdust to produce phenolic monomers utilizing a hydrogen-free strategy. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123490. [PMID: 32712365 DOI: 10.1016/j.jhazmat.2020.123490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Catalytic hydrogenolysis of lignin to obtain value-added phenolic chemicals is a sustainable and cost-effective strategy for the efficient valorization of biomass derived wastes. Herein, an innovative approach by using a single-step microwave assisted depolymerization of lignin from birch sawdust without external hydrogen in the mixture of water-alcohol (methanol, ethanol, isopropanol) co-solvents over commercial catalysts (Pd/C, Pt/C, Ru/C) was investigated. A 65 wt% yield of phenolic monomers was obtained based on 43.8 wt% of delignification (190 °C, 3 h). The solid residues retained 92.0 wt% of cellulose and 57.3 wt% of hemicellulose, which could be further used for fermentation or in the pulp industry. Analysis of the lignin oil revealed that in-situ hydrogen generated from methanol decomposition promoted the hydrogenolysis of βO4 ether linkage and selective hydrogenation of unsaturated side-chains of phenolic monomers. This work introduces new perspectives for the efficient and cost-effective production of value-added phenolic compounds from lignin in agro-industrial wastes without external hydrogen assisted by microwave heating.
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Affiliation(s)
- Xudong Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China; Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
| | - Florent P Bouxin
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
| | - Jiajun Fan
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK.
| | - Vitaliy L Budarin
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - James H Clark
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
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12
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Liu X, Bouxin FP, Fan J, Budarin VL, Hu C, Clark JH. Recent Advances in the Catalytic Depolymerization of Lignin towards Phenolic Chemicals: A Review. CHEMSUSCHEM 2020; 13:4296-4317. [PMID: 32662564 PMCID: PMC7540457 DOI: 10.1002/cssc.202001213] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/12/2020] [Indexed: 05/05/2023]
Abstract
The efficient valorization of lignin could dictate the success of the 2nd generation biorefinery. Lignin, accounting for on average a third of the lignocellulosic biomass, is the most promising candidate for sustainable production of value-added phenolics. However, the structural alteration induced during lignin isolation is often depleting its potential for value-added chemicals. Recently, catalytic reductive depolymerization of lignin has appeared to be a promising and effective method for its valorization to obtain phenolic monomers. The present study systematically summarizes the far-reaching and state-of-the-art lignin valorization strategies during different stages, including conventional catalytic depolymerization of technical lignin, emerging reductive catalytic fractionation of protolignin, stabilization strategies to inhibit the undesired condensation reactions, and further catalytic upgrading of lignin-derived monomers. Finally, the potential challenges for the future researches on the efficient valorization of lignin and possible solutions are proposed.
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Affiliation(s)
- Xudong Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, Department of Chemistry, Sichuan University, Wangjiang Road, Chengdu, 610064, P.R. China
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Florent P Bouxin
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Jiajun Fan
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Vitaliy L Budarin
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, Department of Chemistry, Sichuan University, Wangjiang Road, Chengdu, 610064, P.R. China
| | - James H Clark
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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13
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Lahive CW, Kamer PCJ, Lancefield CS, Deuss PJ. An Introduction to Model Compounds of Lignin Linking Motifs; Synthesis and Selection Considerations for Reactivity Studies. CHEMSUSCHEM 2020; 13:4238-4265. [PMID: 32510817 PMCID: PMC7540175 DOI: 10.1002/cssc.202000989] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 05/31/2023]
Abstract
The development of fundamentally new valorization strategies for lignin plays a vital role in unlocking the true potential of lignocellulosic biomass as sustainable and economically compatible renewable carbon feedstock. In particular, new catalytic modification and depolymerization strategies are required. Progress in this field, past and future, relies for a large part on the application of synthetic model compounds that reduce the complexity of working with the lignin biopolymer. This aids the development of catalytic methodologies and in-depth mechanistic studies and guides structural characterization studies in the lignin field. However, due to the volume of literature and the piecemeal publication of methodology, the choice of suitable lignin model compounds is far from straight forward, especially for those outside the field and lacking a background in organic synthesis. For example, in catalytic depolymerization studies, a balance between synthetic effort and fidelity compared to the actual lignin of interest needs to be found. In this Review, we provide a broad overview of the model compounds available to study the chemistry of the main native linking motifs typically found in lignins from woody biomass, the synthetic routes and effort required to access them, and discuss to what extent these represent actual lignin structures. This overview can aid researchers in their selection of the most suitable lignin model systems for the development of emerging lignin modification and depolymerization technologies, maximizing their chances of successfully developing novel lignin valorization strategies.
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Affiliation(s)
- Ciaran W. Lahive
- Department of Chemical Engineering (ENTEG)University of GroningenNijenborgh 49747 AGGroningenNetherlands
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
| | - Paul C. J. Kamer
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Christopher S. Lancefield
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
| | - Peter J. Deuss
- Department of Chemical Engineering (ENTEG)University of GroningenNijenborgh 49747 AGGroningenNetherlands
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14
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Subbotina E, Velty A, Samec JSM, Corma A. Zeolite-Assisted Lignin-First Fractionation of Lignocellulose: Overcoming Lignin Recondensation through Shape-Selective Catalysis. CHEMSUSCHEM 2020; 13:4528-4536. [PMID: 32281748 DOI: 10.1002/cssc.202000330] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Indexed: 06/11/2023]
Abstract
Organosolv pulping releases reactive monomers from both lignin and hemicellulose by the cleavage of weak C-O bonds. These monomers recombine to form undesired polymers through the formation of recalcitrant C-C bonds. Different strategies have been developed to prevent this process by stabilizing the reactive monomers (i.e., lignin-first approaches). To date, all reported approaches rely on the addition of capping agents or metal-catalyzed stabilization reactions, which usually require high pressures of hydrogen gas. Herein, a metal- and additive-free approach is reported that uses zeolites as acid catalysts to convert the reactive monomers into more stable derivatives under organosolv pulping conditions. Experiments with model lignin compounds showed that the recondensation of aldehydes and allylic alcohols produced by the cleavage of β-O-4' bonds was efficiently inhibited by the use of protonic β zeolite. By applying a zeolite with a preferred pore size, the bimolecular reactions of reactive monomers were effectively inhibited, resulting in stable and valuable monophenolics. The developed methodology was further extended to birch wood to yield monophenolic compounds and value-added products from carbohydrates.
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Affiliation(s)
- Elena Subbotina
- Department of Organic Chemistry, Stockholm University, 106 91, Stockholm, Sweden
| | - Alexandra Velty
- Instituto de Tecnología Química, Universitat Politècnica de València, Consejo Superior de Investigaciones Científica, Avda. de los Naranjos s/n, Valencia, 46022, Spain
| | - Joseph S M Samec
- Department of Organic Chemistry, Stockholm University, 106 91, Stockholm, Sweden
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València, Consejo Superior de Investigaciones Científica, Avda. de los Naranjos s/n, Valencia, 46022, Spain
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15
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Korányi TI, Fridrich B, Pineda A, Barta K. Development of 'Lignin-First' Approaches for the Valorization of Lignocellulosic Biomass. Molecules 2020; 25:E2815. [PMID: 32570887 PMCID: PMC7356833 DOI: 10.3390/molecules25122815] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/12/2020] [Accepted: 06/14/2020] [Indexed: 01/20/2023] Open
Abstract
Currently, valorization of lignocellulosic biomass almost exclusively focuses on the production of pulp, paper, and bioethanol from its holocellulose constituent, while the remaining lignin part that comprises the highest carbon content, is burned and treated as waste. Lignin has a complex structure built up from propylphenolic subunits; therefore, its valorization to value-added products (aromatics, phenolics, biogasoline, etc.) is highly desirable. However, during the pulping processes, the original structure of native lignin changes to technical lignin. Due to this extensive structural modification, involving the cleavage of the β-O-4 moieties and the formation of recalcitrant C-C bonds, its catalytic depolymerization requires harsh reaction conditions. In order to apply mild conditions and to gain fewer and uniform products, a new strategy has emerged in the past few years, named 'lignin-first' or 'reductive catalytic fractionation' (RCF). This signifies lignin disassembly prior to carbohydrate valorization. The aim of the present work is to follow historically, year-by-year, the development of 'lignin-first' approach. A compact summary of reached achievements, future perspectives and remaining challenges is also given at the end of the review.
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Affiliation(s)
- Tamás I. Korányi
- Surface Chemistry and Catalysis Department, Centre for Energy Research, Konkoly Thege M. u. 29-33, 1121 Budapest, Hungary
| | - Bálint Fridrich
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands; (B.F.); (K.B.)
| | - Antonio Pineda
- Department of Organic Chemistry, University of Cordoba, Ed. Marie Curie (C 3), Campus of Rabanales, Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain;
| | - Katalin Barta
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands; (B.F.); (K.B.)
- Department of Chemistry, Organic and Bioorganic Chemistry, University of Graz, Heinrichstrasse 28/II, 8010 Graz, Austria
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16
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Xu L, Zhang SJ, Zhong C, Li BZ, Yuan YJ. Alkali-Based Pretreatment-Facilitated Lignin Valorization: A Review. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01456] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li Xu
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Sen-Jia Zhang
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education), Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Cheng Zhong
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education), Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Bing-Zhi Li
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Ying-Jin Yuan
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
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17
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Guan W, Tsang CW, Lin CSK, Len C, Hu H, Liang C. A review on high catalytic efficiency of solid acid catalysts for lignin valorization. BIORESOURCE TECHNOLOGY 2020; 298:122432. [PMID: 31767425 DOI: 10.1016/j.biortech.2019.122432] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/10/2019] [Accepted: 11/12/2019] [Indexed: 05/12/2023]
Abstract
It is imminent to develop renewable resources to replace fossil-derived energies as fossil resources are on the brink of exhaustion. Lignin is one of the major components of lignocellulosic biomass, which is a natural amorphous three-dimensional polymer with abundant C-O bonds and aromatic structure. Hence, valorization of lignin into high value-added liquid fuels and chemicals is regarded as a promising strategy to mitigate fossil resource shortages. Solid acid catalysts are extensively studied due to environmentally friendly in terms of the ease of separation, recovery and reduced amount of wastes. Hence, this review focuses on summarizing the recent progress of catalytic valorization of lignin over different kinds of solid acid catalysts including zeolites, heteropolyacids, metal oxides, amorphous SiO2-Al2O3, metal phosphates, and Lewis acid. Based on reviewing of current progress of lignin conversion, the challenges and future prospects are emphasized.
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Affiliation(s)
- Weixiang Guan
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Chi-Wing Tsang
- Faculty of Science and Technology, Technological and Higher Education Institute of Hong Kong, 20A Tsing Yi Road, Tsing Yi, Hong Kong China
| | - Carol Sze Ki Lin
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong China
| | - Christophe Len
- Chimie ParisTech, PSL Research University, CNRS, Institute of Chemistry for Life and Health Sciences, 11 rue Pierre et Marie Curie, F-75005 Paris, France
| | - Haoquan Hu
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Changhai Liang
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.
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18
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Shen X, Meng Q, Mei Q, Liu H, Yan J, Song J, Tan D, Chen B, Zhang Z, Yang G, Han B. Selective catalytic transformation of lignin with guaiacol as the only liquid product. Chem Sci 2019; 11:1347-1352. [PMID: 34123258 PMCID: PMC8148073 DOI: 10.1039/c9sc05892c] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Guaiacol is an important feedstock for producing various high-value chemicals. However, the current production route of guaiacol relies heavily on fossil resources. Using lignin as a cheap and renewable feedstock to selectively produce guaiacol has great potential, but it is a challenge because of its heterogeneity and inert reactivity. Herein, we discovered that La(OTf)3 could catalyze the transformation of lignin with guaiacol as the only liquid product. In the reaction, La(OTf)3 catalyzed the hydrolysis of lignin ether linkages to form alkyl-syringol and alkyl-guaiacol, which further underwent decarbonization and demethoxylation to produce guaiacol with a yield of up to 25.5 wt%, and the remaining residue was solid. In the scale-up experiment, the isolated yield of guaiacol reached up to 21.2 wt%. To our knowledge, this is the first work to produce pure guaiacol selectively from lignin. The bio-guaiacol may be considered as a platform to promote lignin utilization. La(OTf)3 can catalyze the transformation of lignin efficiently with guaiacol as the only liquid product, and guaiacol produced can be isolated easily in a scaled up experiment.![]()
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Affiliation(s)
- Xiaojun Shen
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China .,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences Beijing 100049 China
| | - Qinglei Meng
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Qingqing Mei
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China .,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences Beijing 100049 China.,Physical Science Laboratory, Huairou National Comprehensive Science Centre Beijing 101407 P. R. China
| | - Jiang Yan
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China .,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences Beijing 100049 China
| | - Jinliang Song
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Dongxing Tan
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China .,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences Beijing 100049 China
| | - Bingfeng Chen
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Zhanrong Zhang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Guanying Yang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Buxing Han
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Centre for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China .,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences Beijing 100049 China.,Physical Science Laboratory, Huairou National Comprehensive Science Centre Beijing 101407 P. R. China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
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19
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Yu X, Wei Z, Lu Z, Pei H, Wang H. Activation of lignin by selective oxidation: An emerging strategy for boosting lignin depolymerization to aromatics. BIORESOURCE TECHNOLOGY 2019; 291:121885. [PMID: 31377049 DOI: 10.1016/j.biortech.2019.121885] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/20/2019] [Accepted: 07/22/2019] [Indexed: 05/11/2023]
Abstract
Lignin is the most abundant, renewable aromatic resource on earth and holds great potential for the production of value-added chemicals. The efficient valorization of lignin requires to deal with several formidable challenges, especially to prevent it from re-condensation reactions during its depolymerization. Recently, a strategy involving the activation of lignin side chains by selective oxidation of the benzylic alcohol in β-O-4 linkages to facilitate lignin degradation to aromatic monomers has become very popular. This strategy provides great advantages for lignin selective degradation to high yields of aromatics under mild conditions, but requires an additional pre-oxidation step. The purpose of this review is to provide the latest cutting-edge innovations of this novel approach. Various catalytic systems, including those using chemo-catalytic methods, physio-chemo catalytic methods, and/or bio-catalytic methods, for the oxidative activation of lignin side chains are summarized. By analyzing the current situation of lignin depolymerization, certain promising directions are emphasized.
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Affiliation(s)
- Xiaona Yu
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Ziqing Wei
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA
| | - Zhixian Lu
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Haisheng Pei
- Key Laboratory of Agro-products Postharvest Handing Ministry of Agriculture, Chinese Academy of Agricultural Engineering, Beijjing 100121, China
| | - Hongliang Wang
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
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20
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Li H, Bunrit A, Lu J, Gao Z, Luo N, Liu H, Wang F. Photocatalytic Cleavage of Aryl Ether in Modified Lignin to Non-phenolic Aromatics. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02719] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hongji Li
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Anon Bunrit
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
| | - Jianmin Lu
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
| | - Zhuyan Gao
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nengchao Luo
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huifang Liu
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
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21
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Richter SC, Oestreich M. Bioinspired Metal‐Free Formal Decarbonylation of α‐Branched Aliphatic Aldehydes at Ambient Temperature. Chemistry 2019; 25:8508-8512. [DOI: 10.1002/chem.201902082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Sven C. Richter
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
| | - Martin Oestreich
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
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22
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Reactivity of Re2O7 in aromatic solvents – Cleavage of a β-O-4 lignin model substrate by Lewis-acidic rhenium oxide nanoparticles. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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23
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Liu Y, Li C, Miao W, Tang W, Xue D, Li C, Zhang B, Xiao J, Wang A, Zhang T, Wang C. Mild Redox-Neutral Depolymerization of Lignin with a Binuclear Rh Complex in Water. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00669] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuxuan Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
- Dalian Institute of Chemical Physics, Chinese Academy
of Sciences, Dalian, 116023, China
| | - Changzhi Li
- Dalian Institute of Chemical Physics, Chinese Academy
of Sciences, Dalian, 116023, China
- Dalian National Laboratory for Clean Energy, 457 Zhongshan Road, Dalian, 116023, China
| | - Wang Miao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Chaoqun Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Bo Zhang
- Dalian Institute of Chemical Physics, Chinese Academy
of Sciences, Dalian, 116023, China
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, U.K
| | - Aiqin Wang
- Dalian Institute of Chemical Physics, Chinese Academy
of Sciences, Dalian, 116023, China
- Dalian National Laboratory for Clean Energy, 457 Zhongshan Road, Dalian, 116023, China
| | - Tao Zhang
- Dalian Institute of Chemical Physics, Chinese Academy
of Sciences, Dalian, 116023, China
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
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24
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Li H, Song G. Ru-Catalyzed Hydrogenolysis of Lignin: Base-Dependent Tunability of Monomeric Phenols and Mechanistic Study. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00556] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Helong Li
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, People’s Republic of China
| | - Guoyong Song
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, People’s Republic of China
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25
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26
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Wang H, Pu Y, Ragauskas A, Yang B. From lignin to valuable products-strategies, challenges, and prospects. BIORESOURCE TECHNOLOGY 2019; 271:449-461. [PMID: 30266464 DOI: 10.1016/j.biortech.2018.09.072] [Citation(s) in RCA: 245] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 05/24/2023]
Abstract
The exploration of effective approaches for the valorization of lignin to valuable products attracts broad interests of a growing scientific community. By fully unlocking the potential of the world's most abundant resource of bio-aromatics, it could improve the profitability and carbon efficiency of the entire biorefinery process, thus accelerate the replacement of fossil resources with bioresources in our society. The successful realization of this goal depends on the development of technologies to overcome the following challenges, including: 1) efficient biomass pretreatment and lignin separation technologies that overcomes its diverse structure and complex chemistry challenges to obtain high purity lignin; 2) advanced chemical analysis for precise quantitative characterization of the lignin in chemical transformation processes; 3) novel approaches for conversion of biomass-derived lignin to valuable products. This review summarizes the latest cutting-edge innovations of lignin chemical valorization with the focus on the aforementioned three key aspects.
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Affiliation(s)
- Hongliang Wang
- Bioproducts, Sciences, and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, WA 99354, USA; Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yunqiao Pu
- Center for Bioenergy Innovation, Joint Institute of Biological Science, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Arthur Ragauskas
- Center for Bioenergy Innovation, Joint Institute of Biological Science, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA; Department of Chemical and Biomolecular Engineering & Department of Forestry, Wildlife and Fisheries, Center for Renewable Carbon, University of Tennessee, Knoxville, TN, USA
| | - Bin Yang
- Bioproducts, Sciences, and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, WA 99354, USA; Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
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27
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Catalytic Strategies Towards Lignin-Derived Chemicals. Top Curr Chem (Cham) 2018; 376:36. [PMID: 30151801 DOI: 10.1007/s41061-018-0214-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/10/2018] [Indexed: 12/16/2022]
Abstract
Lignin valorization represents a crucial, yet underexploited component in current lignocellulosic biorefineries. An alluring opportunity is the selective depolymerization of lignin towards chemicals. Although challenged by lignin's recalcitrant nature, several successful (catalytic) strategies have emerged. This review provides an overview of different approaches to cope with detrimental lignin structural alterations at an early stage of the biorefinery process, thus enabling effective routes towards lignin-derived chemicals. A first general strategy is to isolate lignin with a better preserved native-like structure and therefore an increased amenability towards depolymerization in a subsequent step. Both mild process conditions as well as active stabilization methods will be discussed. An alternative is the simultaneous depolymerization-stabilization of native lignin towards stable lignin monomers. This approach requires a fast and efficient stabilization of reactive lignin intermediates in order to minimize lignin repolymerization and maximize the envisioned production of chemicals. Finally, the obtained lignin-derived compounds can serve as a platform towards a broad range of bio-based products. Their implementation will improve the sustainability of the chemical industry, but equally important will generate opportunities towards product innovations based on unique biobased chemical structures.
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28
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Guo T, Li X, Liu X, Guo Y, Wang Y. Catalytic Transformation of Lignocellulosic Biomass into Arenes, 5-Hydroxymethylfurfural, and Furfural. CHEMSUSCHEM 2018; 11:2758-2765. [PMID: 30009402 DOI: 10.1002/cssc.201800967] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/10/2018] [Indexed: 05/27/2023]
Abstract
The complete transformation of lignocellulosic biomass into valuable platform chemicals is of great significance. Herein, a catalytic process for the upgrading of lignocellulose to arenes, 5-hydroxymethylfurfural (HMF), and furfural is reported. Firstly, the lignin fraction in lignocellulosic biomass is selectively converted into lignin oil (82.9 mol % yield of lignin monomers from birch wood) over a Pd/C catalyst and then further hydrodeoxygenated to arenes in catalytic hydrogen-transfer reactions over a Ru/Nb2 O5 catalyst. High yields of C7 -C9 hydrocarbons (95.6 mol %) with 85.6 wt % selectivity to arenes based on lignin oil are achieved owing to the synergistic effect between Ru and Nb2 O5 , which enables direct hydrogenolysis of the Caromatic -OH bond in phenolics. Secondly, the cellulose and hemicellulose fractions in the Pd/C-containing solid residue, as well as methylated C5 sugars produced during the stripping of lignin, are converted into HMF and furfural with a total yield of up to 24.5 wt % (based on the amount of birch wood) in a THF/concentrated seawater (ca. 30 wt % salts) biphasic reaction system. Here, seawater played a key role in the conversion of cellulose and hemicellulose into HMF and furfural, respectively; more importantly, it made the separation and reuse of the Pd/C catalyst easier. With this catalytic process, the complete and efficient transformation of lignocellulose into highly value-added products with recycling of each catalyst and solvent has been realized.
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Affiliation(s)
- Tianye Guo
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Institute of Industrial Catalysis;, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Xiangcheng Li
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Institute of Industrial Catalysis;, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Xiaohui Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Institute of Industrial Catalysis;, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yong Guo
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Institute of Industrial Catalysis;, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yanqin Wang
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Institute of Industrial Catalysis;, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P. R. China
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29
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Lancefield CS, Wienk HLJ, Boelens R, Weckhuysen BM, Bruijnincx PCA. Identification of a diagnostic structural motif reveals a new reaction intermediate and condensation pathway in kraft lignin formation. Chem Sci 2018; 9:6348-6360. [PMID: 30310563 PMCID: PMC6115679 DOI: 10.1039/c8sc02000k] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/02/2018] [Indexed: 01/25/2023] Open
Abstract
Kraft lignin, the main by-product of the pulping industry, is an abundant, yet highly underutilized renewable aromatic polymer. During kraft pulping, the lignin undergoes extensive structural modification, with many labile native bonds being replaced by new, more recalcitrant ones. Currently little is known about the nature of those bonds and linkages in kraft lignin, information that is essential for its efficient valorization to renewable fuels, materials or chemicals. Here, we provide detailed new insights into the structure of softwood kraft lignin, identifying and quantifying the major native as well as kraft pulping-derived units as a function of molecular weight. De novo synthetic kraft lignins, generated from (isotope labelled) dimeric and advanced polymeric models, provided key mechanistic understanding of kraft lignin formation, revealing different process dependent reaction pathways to be operating. The discovery of a novel kraft-derived lactone condensation product proved diagnostic for the identification of a previously unknown homovanillin based condensation pathway. The lactone marker is found in various different soft- and hardwood kraft lignins, suggesting the general pertinence of this new condensation mechanism for kraft pulping. These novel structural and mechanistic insights will aid the development of future biomass and lignin valorization technologies.
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Affiliation(s)
- Christopher S Lancefield
- Inorganic Chemistry and Catalysis , Debye Institute for Nanomaterials Science , Utrecht University , Universiteitsweg 99 , 3584 CG Utrecht , The Netherlands .
| | - Hans L J Wienk
- NMR Spectroscopy , Bijvoet Center for Biomolecular Research , Utrecht University , Padualaan 8 , 3584 CH Utrecht , The Netherlands
| | - Rolf Boelens
- NMR Spectroscopy , Bijvoet Center for Biomolecular Research , Utrecht University , Padualaan 8 , 3584 CH Utrecht , The Netherlands
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis , Debye Institute for Nanomaterials Science , Utrecht University , Universiteitsweg 99 , 3584 CG Utrecht , The Netherlands .
| | - Pieter C A Bruijnincx
- Inorganic Chemistry and Catalysis , Debye Institute for Nanomaterials Science , Utrecht University , Universiteitsweg 99 , 3584 CG Utrecht , The Netherlands .
- Organic Chemistry and Catalysis , Debye Institute for Nanomaterials Science , Utrecht University , Universiteitsweg 99 , 3584 CG Utrecht , The Netherlands
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30
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Alternatives for Chemical and Biochemical Lignin Valorization: Hot Topics from a Bibliometric Analysis of the Research Published During the 2000–2016 Period. Processes (Basel) 2018. [DOI: 10.3390/pr6080098] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A complete bibliometric analysis of the Scopus database was performed to identify the research trends related to lignin valorization from 2000 to 2016. The results from this analysis revealed an exponentially increasing number of publications and a high relevance of interdisciplinary collaboration. The simultaneous valorization of the three main components of lignocellulosic biomass (cellulose, hemicellulose, and lignin) has been revealed as a key aspect and optimal pretreatment is required for the subsequent lignin valorization. Research covers the determination of the lignin structure, isolation, and characterization; depolymerization by thermal and thermochemical methods; chemical, biochemical and biological conversion of depolymerized lignin; and lignin applications. Most methods for lignin depolymerization are focused on the selective cleavage of the β-O-4 linkage. Although many depolymerization methods have been developed, depolymerization with sodium hydroxide is the dominant process at industrial scale. Oxidative conversion of lignin is the most used method for the chemical lignin upgrading. Lignin uses can be classified according to its structure into lignin-derived aromatic compounds, lignin-derived carbon materials and lignin-derived polymeric materials. There are many advances in all approaches, but lignin-derived polymeric materials appear as a promising option.
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31
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Schutyser W, Renders T, Van den Bosch S, Koelewijn SF, Beckham GT, Sels BF. Chemicals from lignin: an interplay of lignocellulose fractionation, depolymerisation, and upgrading. Chem Soc Rev 2018; 47:852-908. [PMID: 29318245 DOI: 10.1039/c7cs00566k] [Citation(s) in RCA: 822] [Impact Index Per Article: 137.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In pursuit of more sustainable and competitive biorefineries, the effective valorisation of lignin is key. An alluring opportunity is the exploitation of lignin as a resource for chemicals. Three technological biorefinery aspects will determine the realisation of a successful lignin-to-chemicals valorisation chain, namely (i) lignocellulose fractionation, (ii) lignin depolymerisation, and (iii) upgrading towards targeted chemicals. This review provides a summary and perspective of the extensive research that has been devoted to each of these three interconnected biorefinery aspects, ranging from industrially well-established techniques to the latest cutting edge innovations. To navigate the reader through the overwhelming collection of literature on each topic, distinct strategies/topics were delineated and summarised in comprehensive overview figures. Upon closer inspection, conceptual principles arise that rationalise the success of certain methodologies, and more importantly, can guide future research to further expand the portfolio of promising technologies. When targeting chemicals, a key objective during the fractionation and depolymerisation stage is to minimise lignin condensation (i.e. formation of resistive carbon-carbon linkages). During fractionation, this can be achieved by either (i) preserving the (native) lignin structure or (ii) by tolerating depolymerisation of the lignin polymer but preventing condensation through chemical quenching or physical removal of reactive intermediates. The latter strategy is also commonly applied in the lignin depolymerisation stage, while an alternative approach is to augment the relative rate of depolymerisation vs. condensation by enhancing the reactivity of the lignin structure towards depolymerisation. Finally, because depolymerised lignins often consist of a complex mixture of various compounds, upgrading of the raw product mixture through convergent transformations embodies a promising approach to decrease the complexity. This particular upgrading approach is termed funneling, and includes both chemocatalytic and biological strategies.
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Affiliation(s)
- W Schutyser
- Center for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium.
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32
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Sun Z, Fridrich B, de Santi A, Elangovan S, Barta K. Bright Side of Lignin Depolymerization: Toward New Platform Chemicals. Chem Rev 2018; 118:614-678. [PMID: 29337543 PMCID: PMC5785760 DOI: 10.1021/acs.chemrev.7b00588] [Citation(s) in RCA: 739] [Impact Index Per Article: 123.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Indexed: 11/28/2022]
Abstract
Lignin, a major component of lignocellulose, is the largest source of aromatic building blocks on the planet and harbors great potential to serve as starting material for the production of biobased products. Despite the initial challenges associated with the robust and irregular structure of lignin, the valorization of this intriguing aromatic biopolymer has come a long way: recently, many creative strategies emerged that deliver defined products via catalytic or biocatalytic depolymerization in good yields. The purpose of this review is to provide insight into these novel approaches and the potential application of such emerging new structures for the synthesis of biobased polymers or pharmacologically active molecules. Existing strategies for functionalization or defunctionalization of lignin-based compounds are also summarized. Following the whole value chain from raw lignocellulose through depolymerization to application whenever possible, specific lignin-based compounds emerge that could be in the future considered as potential lignin-derived platform chemicals.
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Affiliation(s)
- Zhuohua Sun
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Bálint Fridrich
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Alessandra de Santi
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Saravanakumar Elangovan
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Katalin Barta
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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33
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Wang H, Wang H, Kuhn E, Tucker MP, Yang B. Production of Jet Fuel-Range Hydrocarbons from Hydrodeoxygenation of Lignin over Super Lewis Acid Combined with Metal Catalysts. CHEMSUSCHEM 2018; 11:285-291. [PMID: 29136337 DOI: 10.1002/cssc.201701567] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 10/11/2017] [Indexed: 06/07/2023]
Abstract
Super Lewis acids containing the triflate anion [e.g., Hf(OTf)4 , Ln(OTf)3 , In(OTf)3 , Al(OTf)3 ] and noble metal catalysts (e.g., Ru/C, Ru/Al2 O3 ) formed efficient catalytic systems to generate saturated hydrocarbons from lignin in high yields. In such catalytic systems, the metal triflates mediated rapid ether bond cleavage through selective bonding to etheric oxygens while the noble metal catalyzed subsequent hydrodeoxygenation (HDO) reactions. Near theoretical yields of hydrocarbons were produced from lignin model compounds by the combined catalysis of Hf(OTf)4 and ruthenium-based catalysts. When a technical lignin derived from a pilot-scale biorefinery was used, more than 30 wt % of the hydrocarbons produced with this catalytic system were cyclohexane and alkylcyclohexanes in the jet fuel range. Super Lewis acids are postulated to strongly interact with lignin substrates by protonating hydroxyl groups and ether linkages, forming intermediate species that enhance hydrogenation catalysis by supported noble metal catalysts. Meanwhile, the hydrogenation of aromatic rings by the noble metal catalysts can promote deoxygenation reactions catalyzed by super Lewis acids.
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Affiliation(s)
- Hongliang Wang
- Department of Biological Systems Engineering, Washington State University, Richland, WA, 99354, USA
- Current address: Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, PR China
| | - Huamin Wang
- Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99354, USA
| | - Eric Kuhn
- National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA
| | - Melvin P Tucker
- National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA
| | - Bin Yang
- Department of Biological Systems Engineering, Washington State University, Richland, WA, 99354, USA
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34
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Lahive CW, Lancefield CS, Codina A, Kamer PCJ, Westwood NJ. Revealing the fate of the phenylcoumaran linkage during lignin oxidation reactions. Org Biomol Chem 2018; 16:1976-1982. [DOI: 10.1039/c7ob03087h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Phenylcoumaran linkages are shown, for the first time, to be oxidised to phenylcoumarones in lignin during oxidations with DDQ.
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Affiliation(s)
- Ciaran W. Lahive
- School of Chemistry and Biomedical Sciences Research Complex
- University of St Andrews and EaStCHEM
- St Andrews
- UK
| | - Christopher S. Lancefield
- School of Chemistry and Biomedical Sciences Research Complex
- University of St Andrews and EaStCHEM
- St Andrews
- UK
| | | | - Paul C. J. Kamer
- School of Chemistry and Biomedical Sciences Research Complex
- University of St Andrews and EaStCHEM
- St Andrews
- UK
- Leibniz-Institut für Katalyse e.V
| | - Nicholas J. Westwood
- School of Chemistry and Biomedical Sciences Research Complex
- University of St Andrews and EaStCHEM
- St Andrews
- UK
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35
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Guo H, Miles-Barrett DM, Neal AR, Zhang T, Li C, Westwood NJ. Unravelling the enigma of lignin OX: can the oxidation of lignin be controlled? Chem Sci 2017; 9:702-711. [PMID: 29629139 PMCID: PMC5869806 DOI: 10.1039/c7sc03520a] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 11/08/2017] [Indexed: 01/25/2023] Open
Abstract
As societal challenges go, the development of efficient biorefineries as a means of reducing our dependence on petroleum refineries is high on the list.
As societal challenges go, the development of efficient biorefineries as a means of reducing our dependence on petroleum refineries is high on the list. One of the core strengths of the petroleum refinery is its ability to produce a huge range of different products using all of the components of the starting material. In contrast, the target of using all the biopolymers present in lignocellulosic biomass is far from realised. Even though our ability to use the carbohydrate-based components has advanced, our plans for lignin lag behind (with the notable exception of vanillin production). One approach to lignin usage is its controlled depolymerisation. This study focuses on an increasingly popular approach to this challenge which involves highly selective lignin oxidation to give a material often referred to as ligninOX. But what do we mean by ligninOX? In this study we show that it is possible to form many different types of ligninOX depending on the oxidation conditions that are used. We show that variations in the levels of processing of the β–O-4, the β–β and a third linkage occur. Through use of this information, we can form a well-defined ligninOX from six different hardwood lignins. This process is reproducible and can be carried out on a large scale. With a source of well-defined ligninOX in hand, we show that it can be converted to simple aromatic monomers and that any remaining ligninOX is sufficiently soluble for further processing to be carried out.
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Affiliation(s)
- Haiwei Guo
- School of Chemistry and Biomedical Sciences Research Complex , University of St. Andrews , EaStCHEM , St. Andrews , Fife , Scotland KY16 9ST , UK . .,State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China . .,University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Daniel M Miles-Barrett
- School of Chemistry and Biomedical Sciences Research Complex , University of St. Andrews , EaStCHEM , St. Andrews , Fife , Scotland KY16 9ST , UK .
| | - Andrew R Neal
- School of Chemistry and Biomedical Sciences Research Complex , University of St. Andrews , EaStCHEM , St. Andrews , Fife , Scotland KY16 9ST , UK .
| | - Tao Zhang
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China .
| | - Changzhi Li
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China .
| | - Nicholas J Westwood
- School of Chemistry and Biomedical Sciences Research Complex , University of St. Andrews , EaStCHEM , St. Andrews , Fife , Scotland KY16 9ST , UK .
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36
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Huang X, Atay C, Zhu J, Palstra SWL, Korányi TI, Boot MD, Hensen EJM. Catalytic Depolymerization of Lignin and Woody Biomass in Supercritical Ethanol: Influence of Reaction Temperature and Feedstock. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2017; 5:10864-10874. [PMID: 29142789 PMCID: PMC5678292 DOI: 10.1021/acssuschemeng.7b02790] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/27/2017] [Indexed: 05/21/2023]
Abstract
The one-step ethanolysis approach to upgrade lignin to monomeric aromatics using a CuMgAl mixed oxide catalyst is studied in detail. The influence of reaction temperature (200-420 °C) on the product distribution is investigated. At low temperature (200-250 °C), recondensation is dominant, while char-forming reactions become significant at high reaction temperature (>380 °C). At preferred intermediate temperatures (300-340 °C), char-forming reactions are effectively suppressed by alkylation and Guerbet and esterification reactions. This shifts the reaction toward depolymerization, explaining high monomeric aromatics yield. Carbon-14 dating analysis of the lignin residue revealed that a substantial amount of the carbon in the lignin residue originates from reactions of lignin with ethanol. Recycling tests show that the activity of the regenerated catalyst was strongly decreased due to a loss of basic sites due to hydrolysis of the MgO function and a loss of surface area due to spinel oxide formation of the Cu and Al components. The utility of this one-step approach for upgrading woody biomass was also demonstrated. An important observation is that conversion of the native lignin contained in the lignocellulosic matrix is much easier than the conversion of technical lignin.
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Affiliation(s)
- Xiaoming Huang
- Schuit
Institute of Catalysis, Inorganic Materials Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ceylanpinar Atay
- Chemical
Engineering Department, Istanbul Technical
University, Maslak, 34469, Istanbul, Turkey
| | - Jiadong Zhu
- Schuit
Institute of Catalysis, Inorganic Materials Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Sanne W. L. Palstra
- Centre
for Isotope Research, Energy and Sustainability Research Institute
Groningen, University of Groningen, Nijenborgh 6, 9747 AG Groningen, The Netherlands
| | - Tamás I. Korányi
- Schuit
Institute of Catalysis, Inorganic Materials Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Michael D. Boot
- Combustion
Technology, Department of Mechanical Engineering, Eindhoven University of Technology,
P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Schuit
Institute of Catalysis, Inorganic Materials Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
- E-mail:
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37
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Huang X, Ouyang X, Hendriks BS, Gonzalez OMM, Zhu J, Korányi TI, Boot MD, Hensen EJM. Selective production of mono-aromatics from lignocellulose over Pd/C catalyst: the influence of acid co-catalysts. Faraday Discuss 2017; 202:141-156. [DOI: 10.1039/c7fd00039a] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ‘lignin-first’ approach has recently gained attention as an alternative whole biomass pretreatment technology with improved yield and selectivity of aromatics compared with traditional upgrading processes using technical lignins. Metal triflates are effective co-catalysts that considerably speed up the removal of lignin fragments from the whole biomass. As their cost is too high in a scaled-up process, we explored here the use of HCl, H2SO4, H3PO4 and CH3COOH as alternative acid co-catalysts for the tandem reductive fractionation process. HCl and H2SO4 were found to show superior catalytic performance over H3PO4 and CH3COOH in model compound studies that simulate lignin–carbohydrate linkages (phenyl glycoside, glyceryl trioleate) and lignin intralinkages (guaiacylglycerol-β-guaiacyl ether). HCl is a promising alternative to the metal triflates as a co-catalyst in the reductive fraction of woody biomass. Al(OTf)3 and HCl, respectively, afforded 46 wt% and 44 wt% lignin monomers from oak wood sawdust in tandem catalytic systems with Pd/C at 180 °C in 2 h. The retention of cellulose in the solid residue was similar.
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Affiliation(s)
- Xiaoming Huang
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Xianhong Ouyang
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Bart M. S. Hendriks
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - O. M. Morales Gonzalez
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Jiadong Zhu
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Tamás I. Korányi
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Michael D. Boot
- Combustion Technology
- Department of Mechanical Engineering
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Emiel J. M. Hensen
- Schuit Institute of Catalysis
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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38
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Galkin M, Di Francesco D, Edlund U, Samec JSM. Sustainable sources need reliable standards. Faraday Discuss 2017; 202:281-301. [DOI: 10.1039/c7fd00046d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review discusses the challenges within the research area of modern biomass fractionation and valorization. The current pulping industry focuses on pulp production and the resulting cellulose fiber. Hemicellulose and lignin are handled as low value streams for process heat and the regeneration of process chemicals. The paper and pulp industry have therefore developed analytical techniques to evaluate the cellulose fiber, while the other fractions are given a low priority. In a strive to also use the hemicellulose and lignin fractions of lignocellulosic biomass, moving towards a biorefining concept, there are severe shortcomings with the current pulping techniques and also in the analysis of the biomass. Lately, new fractionation techniques have emerged which valorize a larger extent of the lignocellulosic biomass. This progress has disclosed the shortcomings in the analysis of mainly the hemicellulose and lignin structure and properties. To move the research field forward, analytical tools for both the raw material, targeting all the wood components, and the generated fractions, as well as standardized methods for evaluating and reporting yields are desired. At the end of this review, a discourse on how such standardizations can be implemented is given.
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Affiliation(s)
- Maxim V. Galkin
- Department of Organic Chemistry
- Stockholm University
- Stockholm
- Sweden
| | | | - Ulrica Edlund
- Fiber and Polymer Technology
- Royal Institute of Technology (KTH)
- SE-100 44 Stockholm
- Sweden
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Rinaldi R, Jastrzebski R, Clough MT, Ralph J, Kennema M, Bruijnincx PCA, Weckhuysen BM. Paving the Way for Lignin Valorisation: Recent Advances in Bioengineering, Biorefining and Catalysis. Angew Chem Int Ed Engl 2016; 55:8164-215. [PMID: 27311348 PMCID: PMC6680216 DOI: 10.1002/anie.201510351] [Citation(s) in RCA: 776] [Impact Index Per Article: 97.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 01/28/2016] [Indexed: 12/23/2022]
Abstract
Lignin is an abundant biopolymer with a high carbon content and high aromaticity. Despite its potential as a raw material for the fuel and chemical industries, lignin remains the most poorly utilised of the lignocellulosic biopolymers. Effective valorisation of lignin requires careful fine-tuning of multiple "upstream" (i.e., lignin bioengineering, lignin isolation and "early-stage catalytic conversion of lignin") and "downstream" (i.e., lignin depolymerisation and upgrading) process stages, demanding input and understanding from a broad array of scientific disciplines. This review provides a "beginning-to-end" analysis of the recent advances reported in lignin valorisation. Particular emphasis is placed on the improved understanding of lignin's biosynthesis and structure, differences in structure and chemical bonding between native and technical lignins, emerging catalytic valorisation strategies, and the relationships between lignin structure and catalyst performance.
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Affiliation(s)
- Roberto Rinaldi
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
| | - Robin Jastrzebski
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands
| | - Matthew T Clough
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - John Ralph
- Department of Energy's Great Lakes Bioenergy Research Center, the Wisconsin Energy Institute, and Department of Biochemistry, University of Wisconsin, Madison, WI, 53726, USA.
| | - Marco Kennema
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Pieter C A Bruijnincx
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
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40
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Rinaldi R, Jastrzebski R, Clough MT, Ralph J, Kennema M, Bruijnincx PCA, Weckhuysen BM. Wege zur Verwertung von Lignin: Fortschritte in der Biotechnik, der Bioraffination und der Katalyse. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510351] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Roberto Rinaldi
- Department of Chemical Engineering Imperial College London South Kensington Campus London SW7 2AZ Großbritannien
| | - Robin Jastrzebski
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht Niederlande
| | - Matthew T. Clough
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - John Ralph
- Department of Energy's Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, and Department of Biochemistry University of Wisconsin Madison WI 53726 USA
| | - Marco Kennema
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Pieter C. A. Bruijnincx
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht Niederlande
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht Niederlande
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