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Cavuoto D, Ravasio N, Zaccheria F, Marelli M, Cappelletti G, Campisi S, Gervasini A. Tuning the Cu/SiO2 wettability features for bio-derived platform molecules valorization. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Hydrocracking of Heavy Vacuum Gas Oil with Petroleum Wax. Catalysts 2022. [DOI: 10.3390/catal12040384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Petroleum heavy vacuum gas oil (HVGO) containing 10 wt.% of petroleum wax was hydrocracked at 390–430 °C and under the pressure of 18 MPa over a Ni W/amorphous silica-alumina catalyst in a continuous-flow fixed-bed reactor. The hydrocracking of a reference feed (neat HVGO) was carried out under the same reaction conditions. The physico-chemical properties of primary products obtained via laboratory atmospheric-vacuum distillation (heavy naphtha, middle distillates and distillation residue) were evaluated. Most products prepared from the mixed feedstock had a similar or lower density and sulfur content than the products obtained from the hydrocracking of the neat HVGO. The heavy naphtha fractions obtained from mixed feedstock contained slightly more n-alkanes and iso-alkanes and less naphthenes and aromatics. Similarly, middle distillates obtained from the mixed feedstock contained slightly more n-alkanes and less aromatics and had cetane index higher by up to 2 units.
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de Paz Carmona H, Tišler Z, Svobodová E, Akhmetzyanova U. Co-processing of Atmospheric Gas Oil with Rapeseed Oil Over Sulfur-Free Supported and Phosphorus-Modified Co-Mo and Ni-Mo Carbide Catalysts. Catal Letters 2022. [DOI: 10.1007/s10562-022-03958-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Priecel P, Kubička D, Vázquez-Zavala A, Antonio de Los Reyes J, Pouzar M, Čapek L. Alternative Preparation of Improved NiMo-Alumina Deoxygenation Catalysts. Front Chem 2020; 8:216. [PMID: 32322571 PMCID: PMC7157445 DOI: 10.3389/fchem.2020.00216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 03/09/2020] [Indexed: 11/13/2022] Open
Abstract
This investigation deals with NiMo-alumina hydrotreating catalysts effective in the deoxygenation of rapeseed oil. The main goal was to compare catalyst structure and their deoxygenation performance and to link these parameters to reveal important structural information regarding the catalyst's intended use. Catalysts were prepared from different precursors (nickel acetate tetrahydrate/molybdenyl acetylacetonate in ethanol and water vs. nickel nitrate hexahydrate/ammonium heptamolybdate tetrahydrate in water), which resulted in their contrasting structural arrangement. These changes were characterized by elemental composition determination, UV-Vis diffuse reflectance spectroscopy, temperature programmed reduction by hydrogen, nitrogen physisorption at 77 K, scanning and transmission electron microscopies, and deoxygenation of rapeseed oil. The critical aspect of high oxygen elimination was a homogeneous dispersion of NiO and MoO3 phases on the support. It subsequently led to the effective transformation of the oxide form of a catalyst to its active sulfide form well-dispersed on the support. On the other hand, the formation of bulk MoO3 resulted in the separate bulk phase and lower extent of sulfidation.
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Affiliation(s)
- Peter Priecel
- Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czechia.,Unipetrol Centre for Research and Education, Litvínov, Czechia
| | - David Kubička
- Department of Petroleum Technology and Alternative Fuels, University of Chemistry and Technology Prague, Prague, Czechia
| | - Armando Vázquez-Zavala
- Departamento de Ingeniería de Procesos e Hidraulica, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - José Antonio de Los Reyes
- Departamento de Ingeniería de Procesos e Hidraulica, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Miroslav Pouzar
- Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czechia
| | - Libor Čapek
- Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czechia
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Chan YH, Cheah KW, How BS, Loy ACM, Shahbaz M, Singh HKG, Yusuf NR, Shuhaili AFA, Yusup S, Ghani WAWAK, Rambli J, Kansha Y, Lam HL, Hong BH, Ngan SL. An overview of biomass thermochemical conversion technologies in Malaysia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 680:105-123. [PMID: 31100662 DOI: 10.1016/j.scitotenv.2019.04.211] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/10/2019] [Accepted: 04/13/2019] [Indexed: 05/20/2023]
Abstract
The rising pressure on both cleaner production and sustainable development have been the main driving force that pushes mankind to seek for alternative greener and sustainable feedstocks for chemical and energy production. The biomass 'waste-to-wealth' concept which convert low value biomass into value-added products which contain high economic potential, have attracted the attentions from both academicians and industry players. With a tropical climate, Malaysia has a rich agricultural sector and dense tropical rainforest, giving rise to abundance of biomass which most of them are underutilized. Hence, the biomass 'waste-to-wealth' conversion through various thermochemical conversion technologies and the prospective challenges towards commercialization in Malaysia are reviewed in this paper. In this paper, a critical review about the maturity status of the four most promising thermochemical conversion routes in Malaysia (i.e. gasification, pyrolysis, liquefaction and hydroprocessing) is given. The current development of thermochemical conversion technologies for biomass conversion in Malaysia is also reviewed and benchmarked against global progress. Besides, the core technical challenges in commercializing these green technologies are highlighted as well. Lastly, the future outlook for successful commercialization of these technologies in Malaysia is included.
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Affiliation(s)
- Yi Herng Chan
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
| | - Kin Wai Cheah
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
| | - Bing Shen How
- Chemical Engineering Department, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, 93350 Kuching, Sarawak, Malaysia
| | - Adrian Chun Minh Loy
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
| | - Muhammad Shahbaz
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - Haswin Kaur Gurdeep Singh
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
| | - Nur'aini Raman Yusuf
- Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
| | - Ahmad Fadzil Ahmad Shuhaili
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
| | - Suzana Yusup
- Biomass Processing Lab, Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia.
| | - Wan Azlina Wan Abd Karim Ghani
- Department of Chemical and Environmental Engineering / Sustainable Process Engineering Research Centre (SPERC), Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Jakaria Rambli
- Department of Chemical and Environmental Engineering / Sustainable Process Engineering Research Centre (SPERC), Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Yasuki Kansha
- Organization for Programs on Environmental Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Hon Loong Lam
- Department of Chemical and Environmental Engineering, University of Nottingham, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Boon Hooi Hong
- Department of Chemical and Environmental Engineering, University of Nottingham, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Sue Lin Ngan
- Department of Chemical and Environmental Engineering, University of Nottingham, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
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Hydrodeoxygenation of Vegetable Oils and Fatty Acids over Different Group VIII Metal Catalysts for Producing Biofuels. CATALYSIS SURVEYS FROM ASIA 2019. [DOI: 10.1007/s10563-019-09266-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Influence of Bio-Oil Phospholipid on the Hydrodeoxygenation Activity of NiMoS/Al2O3 Catalyst. Catalysts 2018. [DOI: 10.3390/catal8100418] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Hydrodeoxygenation (HDO) activity of a typical hydrotreating catalyst, sulfided NiMo/γ-Al2O3 for deoxygenation of a fatty acid has been explored in a batch reactor at 54 bar and 320 °C in the presence of contaminants, like phospholipids, which are known to be present in renewable feeds. Oleic acid was used for the investigation. Freshly sulfided catalyst showed a high degree of deoxygenation activity; products were predominantly composed of alkanes (C17 and C18). Experiments with a major phospholipid showed that activity for C17 was greatly reduced while activity to C18 was not altered significantly in the studied conditions. Characterization of the spent catalyst revealed the formation of aluminum phosphate (AlPO4), which affects the active phase dispersion, blocks the active sites, and causes pore blockage. In addition, choline, formed from the decomposition of phospholipid, partially contributes to the observed deactivation. Furthermore, a direct correlation was observed in the accumulation of coke on the catalyst and the amount of phospholipid introduced in the feed. We therefore propose that the reason for the increased deactivation is due to the dual effects of an irreversible change in phase to aluminum phosphate and the formation of choline.
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Catalytic deoxygenation of waste soybean oil over hybrid catalyst for production of bio-jet fuel: in situ supply of hydrogen by aqueous-phase reforming (APR) of glycerol. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3376-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Oh YK, Hwang KR, Kim C, Kim JR, Lee JS. Recent developments and key barriers to advanced biofuels: A short review. BIORESOURCE TECHNOLOGY 2018. [PMID: 29523378 DOI: 10.1016/j.biortech.2018.02.089] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Biofuels are regarded as one of the most viable options for reduction of CO2 emissions in the transport sector. However, conventional plant-based biofuels (e.g., biodiesel, bioethanol)'s share of total transportation-fuel consumption in 2016 was very low, about 4%, due to several major limitations including shortage of raw materials, low CO2 mitigation effect, blending wall, and poor cost competitiveness. Advanced biofuels such as drop-in, microalgal, and electro biofuels, especially from inedible biomass, are considered to be a promising solution to the problem of how to cope with the growing biofuel demand. In this paper, recent developments in oxy-free hydrocarbon conversion via catalytic deoxygenation reactions, the selection of and lipid-content enhancement of oleaginous microalgae, electrochemical biofuel conversion, and the diversification of valuable products from biomass and intermediates are reviewed. The challenges and prospects for future development of eco-friendly and economically advanced biofuel production processes also are outlined herein.
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Affiliation(s)
- You-Kwan Oh
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Kyung-Ran Hwang
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
| | - Changman Kim
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jung Rae Kim
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jin-Suk Lee
- Gwangju Bioenergy R&D Center, Korea Institute of Energy Research, Gwangju 61003, Republic of Korea.
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11
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Onyestyák G, Novodárszki G, Farkas Wellisch Á, Pilbáth A. Upgraded biofuel from alcohol–acetone feedstocks over a two-stage flow-through catalytic system. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00025h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Over a two-stage flow-through catalytic system an advantageous mixture of various straight and branched alkanes can be obtained. In the second reactor the commercial NiMo/Al2O3 hydrodeoxygenating catalyst shows similar good properties as alkylating Pd-catalysts in the first stage.
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Affiliation(s)
- Gy. Onyestyák
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - Gy. Novodárszki
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - Á. Farkas Wellisch
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - A. Pilbáth
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
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12
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Shamzhy M, Ramos FSDO. Tuning of acidic and catalytic properties of IWR zeolite by post-synthesis incorporation of three-valent elements. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.06.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Onyestyák G. Ni/silica-based bimetallic catalysts by solid-state co-reduction of admixed metal oxides for acetic acid hydroconversion to ethanol. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-1957-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Onyestyák G, Harnos S, Klébert S, Štolcová M, Kaszonyi A, Kalló D. Acetic acid hydroconversion to ethanol over supported nickel and indium-modified nickel catalysts. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-1945-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Onyestyák G, Novodárszki G, Barthos R, Klébert S, Wellisch ÁF, Pilbáth A. Acetone alkylation with ethanol over multifunctional catalysts by a borrowing hydrogen strategy. RSC Adv 2015. [DOI: 10.1039/c5ra17889d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pd loaded alkaline hydrotalcite catalyst proved to be efficient for continuous processing of ABE (acetone–butanol–ethanol) mixture obtainable from biomass degradation to fuel precursor components (longer chain length ketones).
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Affiliation(s)
- Gy. Onyestyák
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - Gy. Novodárszki
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - R. Barthos
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - Sz. Klébert
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - Á. Farkas Wellisch
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
| | - A. Pilbáth
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1519 Budapest
- Hungary
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Kubů M, Roth WJ, Greer HF, Zhou W, Morris RE, Přech J, Čejka J. A new family of two-dimensional zeolites prepared from the intermediate layered precursor IPC-3P obtained during the synthesis of TUN zeolite. Chemistry 2013; 19:13937-45. [PMID: 24038214 DOI: 10.1002/chem.201300096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Indexed: 11/06/2022]
Abstract
The crystallization of zeolite TUN with 1,4-bis(N-methylpyrrolidinium)butane as template proceeds through an intermediate, designated IPC-3P, following the Ostwald rule of successive transformations. This apparently layered transient product has been thoroughly investigated and found to consist of MWW monolayers stacked without alignment in register, that is, disordered compared with MCM-22P. The structure was confirmed based on X-ray diffraction and high-resolution (HR)TEM analysis. The layered zeolite precursor IPC-3P can be swollen and pillared affording a combined micro- and mesoporous material with enhanced Brunauer-Emmett-Teller (BET) surface area (685 m(2) g(-1) ) and greater accessibility of Brønsted acid sites for bulky molecules. This mesoporous material was probed with 2,6-di-tert-butylpyridine (DTBP). IPC-3P and its modification create a new layered zeolite sub-family belonging to the MWW family. FTIR data indicate that (Al)MWW materials MCM-22 and IPC-3 with Si/Al ratios greater than 20 exhibit a lower relative ratio of Brønsted to Lewis acid sites than MCM-22 (with Si/Al ratios of around 13), that is, less than 2 versus more than 3, respectively. This is maintained even upon pillaring and warrants further exploration of materials like IPC-3P with a higher Al content. The unique XRD features of IPC-3P indicating misaligned stacking of layers and distinct from MCM-22P, are also seen in other MWW materials such as EMM-10P, hexamethonium-templated (HM)-MCM-22, ITQ-30, and UZM-8 suggesting the need for more detailed study of their identity and properties.
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Affiliation(s)
- Martin Kubů
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical ChemistryTBP, Academy of Sciences of the Czech Republic, v.v.i. Dolejškova 3, 182 23 Prague 8 (Czech Republic), Fax: (+420) 286582307
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Pérez-Mayoral E, Matos I, Nachtigall P, Položij M, Fonseca I, Vitvarová-Procházková D, Čejka J. Intramolecular hydroalkoxylation of non-activated C=C bonds catalysed by zeolites: an experimental and theoretical study. CHEMSUSCHEM 2013; 6:1021-1030. [PMID: 23703734 DOI: 10.1002/cssc.201300173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Indexed: 06/02/2023]
Abstract
The high activity and selectivity of zeolites in the cyclisation of unsaturated alcohols is reported for the first time; the details of a reaction mechanism based on quantum chemical calculations are also provided. The high efficiency of zeolites MFI, BEA and FAU in the cyclisation of unsaturated alcohols (cis-decen-1-ol, 6-methylhept-5-en-2-ol and 2-allylphenol) to afford oxygen-containing heterocyclic rings is demonstrated. The best catalytic performance is found for zeolites with the optimum concentration of Brønsted acid sites (ca. 0.2 mmol g(-1)) and the minimum number of Lewis acid sites. It is proposed that the efficiency of the catalysts is reduced by the existence of the so-called dual site, at which a molecule of unsaturated alcohol can simultaneously interact with two acid sites (an OH group with one and the double bond with the other Brønsted site), which increases the interaction strength. The formation of such adsorption complexes leads to a decrease in the catalyst activity because of (i) an increase in the reaction barrier, (ii) an unfavourable conformation and (iii) diffusion limitations. A new procedure for the preparation of tetrahydrofurans and pyrans over zeolite catalysts provides important oxygen-containing heterocycles with numerous applications.
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Affiliation(s)
- Elena Pérez-Mayoral
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
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Kubička D, Tukač V. Hydrotreating of Triglyceride-Based Feedstocks in Refineries. CHEMICAL ENGINEERING FOR RENEWABLES CONVERSION 2013. [DOI: 10.1016/b978-0-12-386505-2.00003-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Kubička D, Kubičková I, Čejka J. Application of Molecular Sieves in Transformations of Biomass and Biomass-Derived Feedstocks. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2013. [DOI: 10.1080/01614940.2012.685811] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Zhou G, Hou Y, Liu L, Liu H, Liu C, Liu J, Qiao H, Liu W, Fan Y, Shen S, Rong L. Preparation and characterization of NiW-nHA composite catalyst for hydrocracking. NANOSCALE 2012; 4:7698-7703. [PMID: 23128670 DOI: 10.1039/c2nr31486j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The synthesis, characterization and catalytic capability of the NiW-nano-hydroxyapatite (NiW-nHA) composite were investigated in this paper. The NiW-nHA catalyst was prepared by a co-precipitation method. Then Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD) and energy dispersive spectroscopy (EDX) were used to analyze this material. In addition, the catalytic capacity of the NiW-nHA composite was also examined by FT-IR and gas chromatography (GC). The results of FT-IR analysis indicated that Ni, W and nHA combined closely. TEM observation revealed that this catalyst was needle shaped and the crystal retained a nanometer size. XRD data also suggested that a new phase of CaWO(4) appeared and the lattice parameters of nHA changed in this system. nHA was the carrier of metals. The rates of Ni/W-loading were 73.24% and 65.99% according to the EDX data, respectively. Furthermore, the conversion of 91.88% Jatropha oil was achieved at 360 °C and 3 MPa h(-1) over NiW-nHA catalyst. The straight chain alkanes ranging from C(15) to C(18) were the main components in the production. The yield of C(15)-C(18) alkanes was up to 83.56 wt%. The reaction pathway involved hydrocracking of the C═C bonds of these triglycerides from Jatropha oil. This paper developed a novel non-sulfided catalyst to obtain a "green biofuel" from vegetable oil.
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Affiliation(s)
- Gang Zhou
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, XueYuan Road No.37, Haidian District, Beijing, 100191, China
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Novel Cu and Cu2In/aluminosilicate type catalysts for the reduction of biomass-derived volatile fatty acids to alcohols. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0121-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThis work relates to the consecutive reduction of short chain carboxylic acids (volatile fatty acids, VFAs) to alcohols as main products. Acetic acid (AA) was used as a reactant to model the VFAs that can be produced by either thermochemical or biological biomass degradation. The amorphised zeolite supported copper catalysts (Cu/SiAl), especially the In-modified CuIn/SiAl catalysts, showed high hydroconversion activity and selectivity for alcohol, ester and aldehyde. Catalysts containing dispersed copper particles in amorphous aluminosilicate were obtained by dehydrating and H2-reducing Cu-forms of low-silica synthetic zeolites (A, X, P). The activity of the highly destructed Cu-aluminosilicates was found to depend on the structure of the zeolite precursor. The formation of ethyl acetate could be suppressed by adding water to the AA feed and by modifying the catalyst, e.g. by In2O3 additive. In the catalysts modified by In2O3 additive formation of copper-indium alloy phase (Cu2In intermetallic compound) was detected resulting in a different selectivity than the one recorded for the Cu/SiAl.
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Harnos S, Onyestyák G, Kalló D. Hydrocarbons from sunflower oil over partly reduced catalysts. REACTION KINETICS MECHANISMS AND CATALYSIS 2012. [DOI: 10.1007/s11144-012-0424-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kubička D, Černý R. Upgrading of Fischer–Tropsch Waxes by Fluid Catalytic Cracking. Ind Eng Chem Res 2011. [DOI: 10.1021/ie201969s] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Kubička
- Research Institute of Inorganic Chemistry (VUAnCh), Department of Renewables and Environmental Technologies (UniCRE-RENTECH), Záluží 1, 436 70 Litvínov, Czech Republic
| | - Radek Černý
- Research Institute of Inorganic Chemistry (VUAnCh), Department of Efficient Refining Technologies (UniCRE-EFFRET), Záluží 1, 436 70 Litvínov, Czech Republic
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Improving the catalytic behavior of Ni/Al2O3 by indium in reduction of carboxylic acid to alcohol. CATAL COMMUN 2011. [DOI: 10.1016/j.catcom.2011.09.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Marshall AL, Alaimo PJ. Useful Products from Complex Starting Materials: Common Chemicals from Biomass Feedstocks. Chemistry 2010; 16:4970-80. [PMID: 20394084 DOI: 10.1002/chem.200903028] [Citation(s) in RCA: 174] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Amanda-Lynn Marshall
- Department of Chemistry, Seattle University, 901 12th Avenue, Seattle, WA 98122, USA
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Kubička D, Šimáček P, Žilková N. Transformation of Vegetable Oils into Hydrocarbons over Mesoporous-Alumina-Supported CoMo Catalysts. Top Catal 2008. [DOI: 10.1007/s11244-008-9145-5] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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