1
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Hebisch KL, Goel R, Gołą Bek K, Chmielniak PA, Sievers C. Synergy between Brønsted Acid Sites and Carbonaceous Deposits during Skeletal 1-Butene Isomerization over Ferrierite. ACS Catal 2024; 14:10280-10294. [PMID: 38988653 PMCID: PMC11232006 DOI: 10.1021/acscatal.4c01898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/12/2024] [Accepted: 06/12/2024] [Indexed: 07/12/2024]
Abstract
During skeletal 1-butene isomerization over ferrierite carbonaceous deposits block 98% of the micropores within 24 h, rendering them effectively inaccessible to reactants, while the catalytic activity improves continuously for 100 h on stream. Ex-situ pyridine adsorption shows that the concentration of conventional Brønsted acid sites in the 10-R channels decreases below the detection threshold of infrared spectroscopy within 2 h. However, the operando addition of the base triethyl amine to the feed quenches the reaction, showing that mediated acidity is necessary. The larger base 2,2,6,6-tetramethyl piperidine only deactivates catalytic activity after several hours because it cannot directly bind to active sites at the sterically restricted pore mouths. The communication of internal Brønsted acid sites to the external reactants via a concerted mechanism involving protonated monoaromatic deposits trapped in the pore mouths explains the promoting effects of coke species in zeolite-catalyzed skeletal butene isomerization. This work presents a consolidated explanation of the synergy of solid acidity, structural confinement, and carbonaceous deposits in zeolites.
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Affiliation(s)
- Karoline L Hebisch
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Risha Goel
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Kinga Gołą Bek
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Pawel A Chmielniak
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Renewable Bioproducts Institute, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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2
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Velty A, Corma A. Advanced zeolite and ordered mesoporous silica-based catalysts for the conversion of CO 2 to chemicals and fuels. Chem Soc Rev 2023; 52:1773-1946. [PMID: 36786224 DOI: 10.1039/d2cs00456a] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
For many years, capturing, storing or sequestering CO2 from concentrated emission sources or from air has been a powerful technique for reducing atmospheric CO2. Moreover, the use of CO2 as a C1 building block to mitigate CO2 emissions and, at the same time, produce sustainable chemicals or fuels is a challenging and promising alternative to meet global demand for chemicals and energy. Hence, the chemical incorporation and conversion of CO2 into valuable chemicals has received much attention in the last decade, since CO2 is an abundant, inexpensive, nontoxic, nonflammable, and renewable one-carbon building block. Nevertheless, CO2 is the most oxidized form of carbon, thermodynamically the most stable form and kinetically inert. Consequently, the chemical conversion of CO2 requires highly reactive, rich-energy substrates, highly stable products to be formed or harder reaction conditions. The use of catalysts constitutes an important tool in the development of sustainable chemistry, since catalysts increase the rate of the reaction without modifying the overall standard Gibbs energy in the reaction. Therefore, special attention has been paid to catalysis, and in particular to heterogeneous catalysis because of its environmentally friendly and recyclable nature attributed to simple separation and recovery, as well as its applicability to continuous reactor operations. Focusing on heterogeneous catalysts, we decided to center on zeolite and ordered mesoporous materials due to their high thermal and chemical stability and versatility, which make them good candidates for the design and development of catalysts for CO2 conversion. In the present review, we analyze the state of the art in the last 25 years and the potential opportunities for using zeolite and OMS (ordered mesoporous silica) based materials to convert CO2 into valuable chemicals essential for our daily lives and fuels, and to pave the way towards reducing carbon footprint. In this review, we have compiled, to the best of our knowledge, the different reactions involving catalysts based on zeolites and OMS to convert CO2 into cyclic and dialkyl carbonates, acyclic carbamates, 2-oxazolidones, carboxylic acids, methanol, dimethylether, methane, higher alcohols (C2+OH), C2+ (gasoline, olefins and aromatics), syngas (RWGS, dry reforming of methane and alcohols), olefins (oxidative dehydrogenation of alkanes) and simple fuels by photoreduction. The use of advanced zeolite and OMS-based materials, and the development of new processes and technologies should provide a new impulse to boost the conversion of CO2 into chemicals and fuels.
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Affiliation(s)
- Alexandra Velty
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 València, Spain.
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 València, Spain.
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3
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Mo T, Yu M, Li H, Li S, Lu B, Zhao J, Cai Q. Highly Dispersed CrO x Nanoparticle-Modified NaZSM-5 for Dehydration of Methanol to Dimethyl Ether. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.3c00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Tianyu Mo
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
| | - Miao Yu
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
| | - Hongyan Li
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
| | - Songnan Li
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
| | - Bin Lu
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
| | - Jingxiang Zhao
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
| | - Qinghai Cai
- Key Lab for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Shida Road Limin Development Zone, Harbin 150025, P. R. China
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4
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Active Sites in H-Mordenite Catalysts Probed by NMR and FTIR. Catalysts 2023. [DOI: 10.3390/catal13020344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Mordenites are widely used in catalysis and environmental protection. The catalytic properties of mordenite are largely determined by the composition of its crystal framework, i.e., the SiO2/Al2O3 molar ratio (MR), and the cationic form. In H-mordenites, the most important characteristic becomes the structure and distribution of acid sites, which depends on the number and distribution of Al tetrahedra in the framework. In the present work, the local structure of these centers in H-mordenite catalysts with a nominal MR varied from 9.9 to 19.8 was studied in detail using a combination of magic angle spinning nuclear magnetic resonance (MAS NMR) and Fourier transform infrared spectroscopy (FTIR). 27Al MAS NMR indicates the presence of extra-framework Al in most of the studied samples that results in a higher real MR of the zeolitic framework compared to the nominal value. Concentrations of Lewis and Brønsted acid sites, as well as of silanol groups were estimated by elemental analysis, NMR, and FTIR spectroscopy. The values of site concentrations obtained from band intensities of adsorbed CO and those of OH groups are compared with the amount of framework and extra-framework aluminum. The advantages and restrictions of different methods of active site characterization are discussed.
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5
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Perret L, Lacerda de Oliveira Campos B, Herrera Delgado K, Zevaco TA, Neumann A, Sauer J. CO
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Fixation to Elementary Building Blocks: Anaerobic Syngas Fermentation vs. Chemical Catalysis. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202200153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lukas Perret
- Karlsruhe Institute of Technology Institute of Catalysis Research and Technology 76344 Eggenstein-Leopoldshafen Germany
| | | | - Karla Herrera Delgado
- Karlsruhe Institute of Technology Institute of Catalysis Research and Technology 76344 Eggenstein-Leopoldshafen Germany
| | - Thomas A. Zevaco
- Karlsruhe Institute of Technology Institute of Catalysis Research and Technology 76344 Eggenstein-Leopoldshafen Germany
| | - Anke Neumann
- Karlsruhe Institute of Technology Institute of Process Engineering in Life Sciences 2 – Technical Biology 76131 Karlsruhe Germany
| | - Jörg Sauer
- Karlsruhe Institute of Technology Institute of Catalysis Research and Technology 76344 Eggenstein-Leopoldshafen Germany
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6
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De Bellis J, Ochoa-Hernández C, Farès C, Petersen H, Ternieden J, Weidenthaler C, Amrute AP, Schüth F. Surface and Bulk Chemistry of Mechanochemically Synthesized Tohdite Nanoparticles. J Am Chem Soc 2022; 144:9421-9433. [PMID: 35604643 PMCID: PMC9164225 DOI: 10.1021/jacs.2c02181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Aluminum oxides, oxyhydroxides, and hydroxides are important in different fields of application due to their many attractive properties. However, among these materials, tohdite (5Al2O3·H2O) is probably the least known because of the harsh conditions required for its synthesis. Herein, we report a straightforward methodology to synthesize tohdite nanopowders (particle diameter ∼13 nm, specific surface area ∼102 m2 g-1) via the mechanochemically induced dehydration of boehmite (γ-AlOOH). High tohdite content (about 80%) is achieved upon mild ball milling (400 rpm for 48 h in a planetary ball mill) without process control agents. The addition of AlF3 can promote the crystallization of tohdite by preventing the formation of the most stable α-Al2O3, resulting in the formation of almost phase-pure tohdite. The availability of easily accessible tohdite samples allowed comprehensive characterization by powder X-ray diffraction, total scattering analysis, solid-state NMR (1H and 27Al), N2-sorption, electron microscopy, and simultaneous thermal analysis (TG-DSC). Thermal stability evaluation of the samples combined with structural characterization evidenced a low-temperature transformation sequence: 5Al2O3·H2O → κ-Al2O3 → α-Al2O3. Surface characterization via DRIFTS, ATR-FTIR, D/H exchange experiments, pyridine-FTIR, and NH3-TPD provided further insights into the material properties.
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Affiliation(s)
- Jacopo De Bellis
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Cristina Ochoa-Hernández
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Christophe Farès
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Hilke Petersen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Jan Ternieden
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Claudia Weidenthaler
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Amol P Amrute
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Ferdi Schüth
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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7
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Krylova EA, Shelyapina MG, Mazur A, Baranov DA, Tsyganenko AA, Petranovskii VP. LOCAL STRUCTURE OF PROTONATED MORDENITES WITH SiO2/Al2O3 ≈ 15 PROBED BY MULTINUCLEAR NMR. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622060105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Mesoporous titanium-aluminosilicate as an efficient catalyst for selective oxidation of cyclohexene at mild reaction conditions. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Rodriguez-Olguin MA, Cruz-Herbert RN, Atia H, Bosco M, Fornero EL, Eckelt R, De Haro Del Río DA, Aguirre A, Gardeniers JGE, Susarrey-Arce A. Tuning the catalytic acidity in Al 2O 3 nanofibers with mordenite nanocrystals for dehydration reactions. Catal Sci Technol 2022; 12:4243-4254. [PMID: 35873718 PMCID: PMC9252259 DOI: 10.1039/d2cy00143h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/10/2022] [Indexed: 11/21/2022]
Abstract
The chemical and structural properties of Al2O3 are tuned for dehydration reactions. The synergy between the structured Al2O3 shaped as nanofiber and the acid site nature of the zeolite mordenite in the nanofiber improves the dehydration reaction.
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Affiliation(s)
- M. A. Rodriguez-Olguin
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, PO. Box 217, 7500AE, Enschede, The Netherlands
| | - R. N. Cruz-Herbert
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba S/N, San Nicolás de los Garza, Nuevo León, 64455, Mexico
| | - H. Atia
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, D-18059, Rostock, Germany
| | - M. Bosco
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral, CONICET, Güemes 3450, S3000GLN, Santa Fe, Argentina
- Facultad de Ingeniería Química, Universidad Nacional del Litoral (UNL), Santiago del Estero 2829, Santa Fe, 3000, Argentina
| | - E. L. Fornero
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral, CONICET, Güemes 3450, S3000GLN, Santa Fe, Argentina
- Facultad de Ingeniería en Ciencias Hídricas, UNL, Ciudad Universitaria, Ruta Nacional N° 168 – Km 472,4, 3000 Santa Fe, Argentina
| | - R. Eckelt
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, D-18059, Rostock, Germany
| | - D. A. De Haro Del Río
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba S/N, San Nicolás de los Garza, Nuevo León, 64455, Mexico
| | - A. Aguirre
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral, CONICET, Güemes 3450, S3000GLN, Santa Fe, Argentina
| | - J. G. E. Gardeniers
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, PO. Box 217, 7500AE, Enschede, The Netherlands
| | - A. Susarrey-Arce
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, PO. Box 217, 7500AE, Enschede, The Netherlands
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10
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García-Mateos FJ, Ruiz-Rosas R, Rosas JM, Rodríguez-Mirasol J, Cordero T. Phosphorus containing carbon (submicron)fibers as efficient acid catalysts. Catal Today 2022. [DOI: 10.1016/j.cattod.2020.10.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Combination of Cu/ZnO Methanol Synthesis Catalysts and ZSM-5 Zeolites to Produce Oxygenates from CO2 and H2. Top Catal 2021. [DOI: 10.1007/s11244-021-01447-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractCu/ZnO methanol catalysts were deposited over several ZSM-5 acid zeolites to directly synthesise oxygenates (methanol and dimethyl ether) from a CO2/H2 feed. Catalysts were prepared by two different preparation methodologies: chemical vapour impregnation (CZZ-CVI) and oxalate gel precipitation (CZZ-OG). Chemical vapour impregnation led to Cu/ZnO being deposited on the zeolite surface, whilst oxalate gel precipitation led to the formation of Cu/ZnO agglomerates. For both sets of catalysts a higher concentration of mild and strong acid sites were produced, compared to the parent ZSM-5 zeolites, and CZZ-CVI had a higher concentration of acid sites compared to CZZ-OG. Nevertheless, CZZ-OG shows considerably higher oxygenate productivity, 1322 mmol Kgcat−1 h−1, compared to 192 mmol Kgcat−1 h−1 over CZZ-CVI (ZSM-5(50), 250 ℃, 20 bar, CO2/H2 = 1/3, 30 ml min−1), which could be assigned to a combination of smaller particle size and enhanced methanol mass transfer within the zeolites.
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12
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Zhokh A, Trypolskyi A, Gritsenko V, Serebrii T, Zhang L, Tang J, Strizhak P. Intrinsic kinetics of the methanol dehydration to dimethyl ether over laboratory and commercial γ‐alumina: a comparative study. ASIA-PAC J CHEM ENG 2021. [DOI: 10.1002/apj.2722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexey Zhokh
- L.V. Pisarzhevskii Institute of Physical Chemistry of National Academy of Sciences of Ukraine Kiev Ukraine
| | - Andrey Trypolskyi
- L.V. Pisarzhevskii Institute of Physical Chemistry of National Academy of Sciences of Ukraine Kiev Ukraine
| | - Valentina Gritsenko
- L.V. Pisarzhevskii Institute of Physical Chemistry of National Academy of Sciences of Ukraine Kiev Ukraine
| | - Tamila Serebrii
- L.V. Pisarzhevskii Institute of Physical Chemistry of National Academy of Sciences of Ukraine Kiev Ukraine
| | - Lixiu Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech, Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech, Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Peter Strizhak
- L.V. Pisarzhevskii Institute of Physical Chemistry of National Academy of Sciences of Ukraine Kiev Ukraine
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech, Cooperation on Hybrid Materials Qingdao University Qingdao China
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13
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Temerdashev ZA, Kostina AS, Rudenko AV, Kolychev IA, Vasil’ev AM. Catalytic Activity of Alumina-Modified Silica Gels in Methanol Conversion to Dimethyl Ether. RUSS J APPL CHEM+ 2021. [DOI: 10.1134/s1070427221050049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Direct Synthesis of Dimethyl Ether from CO2: Recent Advances in Bifunctional/Hybrid Catalytic Systems. Catalysts 2021. [DOI: 10.3390/catal11040411] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dimethyl ether (DME) is a versatile raw material and an interesting alternative fuel that can be produced by the catalytic direct hydrogenation of CO2. Recently, this process has attracted the attention of the industry due to the environmental benefits of CO2 elimination from the atmosphere and its lower operating costs with respect to the classical, two-step synthesis of DME from syngas (CO + H2). However, due to kinetics and thermodynamic limits, the direct use of CO2 as raw material for DME production requires the development of more effective catalysts. In this context, the objective of this review is to present the latest progress achieved in the synthesis of bifunctional/hybrid catalytic systems for the CO2-to-DME process. For catalyst design, this process is challenging because it should combine metal and acid functionalities in the same catalyst, in a correct ratio and with controlled interaction. The metal catalyst is needed for the activation and transformation of the stable CO2 molecules into methanol, whereas the acid catalyst is needed to dehydrate the methanol into DME. Recent developments in the catalyst design have been discussed and analyzed in this review, presenting the different strategies employed for the preparation of novel bifunctional catalysts (physical/mechanical mixing) and hybrid catalysts (co-precipitation, impregnation, etc.) with improved efficiency toward DME formation. Finally, an outline of future prospects for the research and development of efficient bi-functional/hybrid catalytic systems will be presented.
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15
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Niamnuy C, Prapaitrakul P, Panchan N, Seubsai A, Witoon T, Devahastin S, Chareonpanich M. Synthesis of Dimethyl Ether via CO 2 Hydrogenation: Effect of the Drying Technique of Alumina on Properties and Performance of Alumina-Supported Copper Catalysts. ACS OMEGA 2020; 5:2334-2344. [PMID: 32064395 PMCID: PMC7017421 DOI: 10.1021/acsomega.9b03713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
Thermal treatment during catalyst preparation is one of the important factors affecting the characteristics and performance of a catalyst. To improve the catalytic performance of an alumina-supported copper catalyst prepared by an impregnation method for dimethyl ether (DME) synthesis from CO2, the effects of the use of hot air and infrared drying as well as calcination at 600 and 900 °C to prepare alumina supports were investigated. Infrared drying could shorten the required drying time by 75% when compared with hot air drying. Infrared drying could also help maintain the pore size and pore volume of the supports, leading to their larger surface areas. Different drying techniques were additionally noted to result in different sizes and shapes of the pores as well as to different copper distributions and intensities of acid sites of the catalyst. An increase in the calcination temperature resulted in a decrease in the surface area of the supports because of particle aggregation. The drying technique exhibited a more significant effect than calcination temperature on the space-time yield of DME. A catalyst utilizing the support prepared by infrared drying and then calcined at 600 °C exhibited the highest yield of DME (40.9 gDME kgcat -1 h-1) at a reaction temperature of 300 °C. Stability of the optimal catalyst, when monitored over a 24 h period, was noted to be excellent.
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Affiliation(s)
- Chalida Niamnuy
- KU-Green
Catalysts Group, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network of NANOTEC-KU on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Pawanrat Prapaitrakul
- KU-Green
Catalysts Group, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Noppadol Panchan
- Department
of Chemical Engineering, Faculty of Engineering, Mahanakorn University of Technology, 140 Cheum-Sampan Road, Nongchok, Bangkok 10530, Thailand
| | - Anusorn Seubsai
- KU-Green
Catalysts Group, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network of NANOTEC-KU on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Thongthai Witoon
- KU-Green
Catalysts Group, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network of NANOTEC-KU on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Sakamon Devahastin
- Advanced
Food Processing Research Laboratory, Department of Food Engineering,
Faculty of Engineering, King Mongkut’s
University of Technology Thonburi, 126 Pracha u-tid Road, Tungkru, Bangkok 10140, Thailand
- The
Academy of Science, The Royal Society of
Thailand, Dusit, Bangkok 10300, Thailand
| | - Metta Chareonpanich
- KU-Green
Catalysts Group, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network of NANOTEC-KU on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
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16
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Kipnis MA, Kosolapova AP, Belostotskii IA, Volnina EA, Bondarenko GN, Levin IS, Ponomarev AB. Zr- and La-containing Catalysts in Synthesis of Methanol and Dimethyl Ether. RUSS J APPL CHEM+ 2019. [DOI: 10.1134/s1070427219080056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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