1
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Yu Y, Lundin STB, Obata K, Sarathy SM, Takanabe K. Improved Homogeneous–Heterogeneous Kinetic Mechanism Using a Langmuir–Hinshelwood-Based Microkinetic Model for High-Pressure Oxidative Coupling of Methane. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Yuhang Yu
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Sean-Thomas B. Lundin
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keisuke Obata
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - S. Mani Sarathy
- Clean Combustion Research Center (CCRC) and Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Kazuhiro Takanabe
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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2
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Maitre PA, Bieniek MS, Kechagiopoulos PN. Plasma-Catalysis of Nonoxidative Methane Coupling: A Dynamic Investigation of Plasma and Surface Microkinetics over Ni(111). THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:19987-20003. [PMID: 36483684 PMCID: PMC9720725 DOI: 10.1021/acs.jpcc.2c03503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 10/13/2022] [Indexed: 05/25/2023]
Abstract
A heterogeneous catalytic microkinetic model is developed and implemented in a zero-dimensional (0D) plasma model for the dynamic study of methane nonoxidative coupling over Ni(111) at residence times and power densities consistent with experimental reactors. The microkinetic model is thermodynamically consistent and is parameterized based on the heats of chemisorption of surface species on Ni(111). The surface network explicitly accounts for the interactions of plasma species, namely, molecules, radicals, and vibrationally excited states, with the catalyst active sites via adsorption and Eley-Rideal reactions. The Fridman-Macheret model is used to describe the enhancement of the rate of the dissociative adsorption of vibrationally excited CH4, H2, and C2H6. In combination with a previously developed detailed kinetic scheme for nonthermal methane plasma, 0D simulation results bring insights into the complex dynamic interactions between the plasma phase and the catalyst during methane nonoxidative coupling. Differential turnover frequencies achieved by plasma-catalysis are higher than those of equivalent plasma-only and catalysis-only simulations combined; however, this performance can only be sustained momentarily. Hydrogen produced from dehydrogenation of ethane via electron collisions within the plasma is found to quickly saturate the surface and even promote the conversion of surface CH3* back to methane.
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3
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Tharakaraman SS, Nunez Manzano M, Kulkarni SR, Yazdani P, De Vos Y, Verspeelt T, Heynderickx G, Van Geem KM, Marin GB, Saeys M. Development of an Active and Mechanically Stable Catalyst for the Oxidative Coupling of Methane in a Gas–Solid Vortex Reactor. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c02121] [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]
Affiliation(s)
| | - Manuel Nunez Manzano
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Shekhar R. Kulkarni
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Parviz Yazdani
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Yoran De Vos
- Sustainable Materials Management, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol 2400, Belgium
- Department of Materials, Textiles and Chemical Engineering, Industrial Catalysis and Adsorption Technology (INCAT), Ghent University, Valentin Vaerwyckweg 1, Ghent 9000, Belgium
| | - Tom Verspeelt
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Geraldine Heynderickx
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Kevin M. Van Geem
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Mark Saeys
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
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4
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Wang H, Shao C, Gascon J, Takanabe K, Sarathy SM. Noncatalytic Oxidative Coupling of Methane (OCM): Gas-Phase Reactions in a Jet Stirred Reactor (JSR). ACS OMEGA 2021; 6:33757-33768. [PMID: 34926924 PMCID: PMC8674986 DOI: 10.1021/acsomega.1c05020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Oxidative coupling of methane (OCM) is a promising technique for converting methane to higher hydrocarbons in a single reactor. Catalytic OCM is known to proceed via both gas-phase and surface chemical reactions. It is essential to first implement an accurate gas-phase model and then to further develop comprehensive homogeneous-heterogeneous OCM reaction networks. In this work, OCM gas-phase kinetics using a jet-stirred reactor are studied in the absence of a catalyst and simulated using a 0-D reactor model. Experiments were conducted in OCM-relevant operating conditions under various temperatures, residence times, and inlet CH4/O2 ratios. Simulations of different gas-phase models related to methane oxidation were implemented and compared against the experimental data. Quantities of interest (QoI) and rate of production analyses on hydrocarbon products were also performed to evaluate the models. The gas-phase models taken from catalytic reaction networks could not adequately describe the experimental gas-phase performances. NUIGMech1.1 was selected as the most comprehensive model to describe the OCM gas-phase kinetics; it is recommended for further use as the gas-phase model for constructing homogeneous-heterogeneous reaction networks.
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Affiliation(s)
- Haoyi Wang
- Clean
Combustion Research Center (CCRC), Physical Sciences and Engineering
Division, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- KAUST
Catalysis Center (KCC), Physical Sciences and Engineering Division, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Can Shao
- Clean
Combustion Research Center (CCRC), Physical Sciences and Engineering
Division, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Jorge Gascon
- KAUST
Catalysis Center (KCC), Physical Sciences and Engineering Division, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Kazuhiro Takanabe
- Department
of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Japan
Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - S. Mani Sarathy
- Clean
Combustion Research Center (CCRC), Physical Sciences and Engineering
Division, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- KAUST
Catalysis Center (KCC), Physical Sciences and Engineering Division, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
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5
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Oxidative Coupling of Methane for Ethylene Production: Reviewing Kinetic Modelling Approaches, Thermodynamics and Catalysts. Processes (Basel) 2021. [DOI: 10.3390/pr9122196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ethylene production via oxidative coupling of methane (OCM) represents an interesting route for natural gas upscaling, being the focus of intensive research worldwide. Here, OCM developments are analysed in terms of kinetic mechanisms and respective applications in chemical reactor models, discussing current challenges and directions for further developments. Furthermore, some thermodynamic aspects of the OCM reactions are also revised, providing achievable olefins yields in a wide range of operational reaction conditions. Finally, OCM catalysts are reviewed in terms of respective catalytic performances and thermal stability, providing an executive summary for future studies on OCM economic feasibility.
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6
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Ishioka S, Miyazato I, Takahashi L, Nguyen TN, Taniike T, Takahashi K. Unveiling gas-phase oxidative coupling of methane via data analysis. J Comput Chem 2021; 42:1447-1451. [PMID: 34018210 DOI: 10.1002/jcc.26554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 01/04/2023]
Abstract
Unveiling the details of the mechanisms of a chemical reaction is a difficult task as reaction mechanisms are strongly coupled with reaction conditions. Here, catalysts informatics combined with high-throughput experimental data is implemented to understand the oxidative coupling of methane (OCM) reaction. In particular, pairwise correlation and data visualization are performed to reveal the relation between reaction conditions and selectivity/conversion. In addition, machine learning is used to fill the gap between experimental data points; thus, a more detailed understanding of the OCM reaction against reaction conditions can be achieved. Therefore, catalysts informatics is proposed for understanding the details of the reaction mechanism, thereby aiding reaction design.
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Affiliation(s)
- Sora Ishioka
- Department of Chemistry, Hokkaido University, Sapporo, Japan
| | - Itsuki Miyazato
- Department of Chemistry, Hokkaido University, Sapporo, Japan
| | | | - Thanh Nhat Nguyen
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan
| | - Toshiaki Taniike
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan
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7
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Pirro L, Mendes PS, Kemseke B, Vandegehuchte BD, Marin GB, Thybaut JW. From catalyst to process: bridging the scales in modeling the OCM reaction. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.06.084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Modelling excited species and their role on kinetic pathways in the non-oxidative coupling of methane by dielectric barrier discharge. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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9
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Fonseca AA, Heyn RH, Frøseth M, Thybaut JW, Poissonnier J, Meiswinkel A, Zander HJ, Canivet J. A Disruptive Innovation for Upgrading Methane to C3 Commodity Chemicals : Technical challenges faced by the C123 European consortium. JOHNSON MATTHEY TECHNOLOGY REVIEW 2021. [DOI: 10.1595/205651321x16051060155762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
C123 is a €6.4 million European Horizon 2020 (H2020) integrated project running from 2019 to 2023, bringing together 11 partners from seven different European countries. There are large reserves of stranded natural gas waiting for a viable solution and smaller scale biogas opportunities
offering methane feedstocks rich in carbon dioxide, for which utilisation can become an innovation advantage. C123 will evaluate how to best valorise these unexploited methane resources by an efficient and selective transformation into easy-to-transport liquids such as propanol and propanal
that can be transformed further into propylene and fed into the US$6 billion polypropylene market. In C123 the selective transformation of methane to C3 hydrocarbons will be realised via a combination of oxidative conversion of methane (OCoM) and hydroformylation, including thorough
smart process design and integration under industrially relevant conditions. All C123 technologies exist at TRL3 (TRL = technology readiness level), and the objectives of C123 will result in the further development of this technology to TRL5 with a great focus on the efficient overall integration
of not only the reaction steps but also the required purification and separation steps, incorporating the relevant state-of-the-art engineering expertise.
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Affiliation(s)
| | | | | | - Joris W. Thybaut
- Ghent University, Laboratory for Chemical Technology Technologiepark-Zwijnaarde 125, B-9052, Gent Belgium
| | - Jeroen Poissonnier
- Ghent University, Laboratory for Chemical Technology Technologiepark-Zwijnaarde 125, B-9052, Gent Belgium
| | | | | | - Jérôme Canivet
- The University of Lyon, Université Claude Bernard Lyon 1, National Centre for Scientific Research (CNRS), Institute for Researches on Catalysis and Environment of Lyon (IRCELYON)-UMR 5256 2 Avenue Albert Einstein, 69626
Villeurbanne cedex France
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10
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Ishikawa A, Tateyama Y. A First-Principles Microkinetics for Homogeneous–Heterogeneous Reactions: Application to Oxidative Coupling of Methane Catalyzed by Magnesium Oxide. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04104] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Atsushi Ishikawa
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 333-0012, Japan
- Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshitaka Tateyama
- Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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11
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Phenomenological approaches for quantitative temperature-programmed reduction (TPR) and desorption (TPD) analysis. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.11.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Vandewalle LA, Van Geem KM, Marin GB, Bos R. A Boudart Number for the Assessment of Irreducible Pellet-Scale Mass Transfer Limitations: Application to Oxidative Coupling of Methane. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05517] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurien A. Vandewalle
- Ghent University, Laboratory for Chemical Technology, Technologiepark 125, 9052 Gent, Belgium
| | - Kevin M. Van Geem
- Ghent University, Laboratory for Chemical Technology, Technologiepark 125, 9052 Gent, Belgium
| | - Guy B. Marin
- Ghent University, Laboratory for Chemical Technology, Technologiepark 125, 9052 Gent, Belgium
| | - René Bos
- Ghent University, Laboratory for Chemical Technology, Technologiepark 125, 9052 Gent, Belgium
- Shell Global Solutions International B.V., P.O. Box 38000, 1030 BN, Amsterdam, The Netherlands
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13
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Maitre PA, Bieniek MS, Kechagiopoulos PN. Plasma-enhanced catalysis for the upgrading of methane: a review of modelling and simulation methods. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00024h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Modelling methods and simulation works on the upgrading of methane via plasma and plasma-enhanced catalysis reviewed.
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Affiliation(s)
- Pierre-André Maitre
- Chemical and Materials Engineering Group
- School of Engineering
- University of Aberdeen
- Aberdeen
- UK
| | - Matthew S. Bieniek
- Chemical and Materials Engineering Group
- School of Engineering
- University of Aberdeen
- Aberdeen
- UK
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14
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Pirro L, Mendes PSF, Vandegehuchte BD, Marin GB, Thybaut JW. Catalyst screening for the oxidative coupling of methane: from isothermal to adiabatic operation via microkinetic simulations. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00478e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OCM catalysts underperforming in typical isothermal conditions could result in above average performances in adiabatically-relevant operating conditions.
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Affiliation(s)
- Laura Pirro
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
| | | | | | - Guy B. Marin
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
| | - Joris W. Thybaut
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
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15
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Vandewalle LA, Lengyel I, West DH, Van Geem KM, Marin GB. Catalyst ignition and extinction: A microkinetics-based bifurcation study of adiabatic reactors for oxidative coupling of methane. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.08.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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The role of mass and heat transfer in the design of novel reactors for oxidative coupling of methane. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.09.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Pirro L, Mendes PSF, Paret S, Vandegehuchte BD, Marin GB, Thybaut JW. Descriptor–property relationships in heterogeneous catalysis: exploiting synergies between statistics and fundamental kinetic modelling. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00719a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Combined kinetic and statistical approach to shed light on the link between kinetically-relevant descriptors and easily tuneable catalyst properties.
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Affiliation(s)
- Laura Pirro
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
| | | | - Stijn Paret
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
| | | | - Guy B. Marin
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
| | - Joris W. Thybaut
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
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18
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Pirro L, Obradović A, Vandegehuchte BD, Marin GB, Thybaut JW. Model-Based Catalyst Selection for the Oxidative Coupling of Methane in an Adiabatic Fixed-Bed Reactor. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04242] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laura Pirro
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Ghent, Belgium
| | - Ana Obradović
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Ghent, Belgium
| | - Bart D. Vandegehuchte
- Total Research & Technology Feluy, Zone Industrielle Feluy C, B-7181, Seneffe, Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Ghent, Belgium
| | - Joris W. Thybaut
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Ghent, Belgium
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19
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Alexiadis VI, Serres T, Marin GB, Mirodatos C, Thybaut JW, Schuurman Y. Analysis of volume‐to‐surface ratio effects on methane oxidative coupling using microkinetic modeling. AIChE J 2018. [DOI: 10.1002/aic.16152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- V. I. Alexiadis
- Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 914 B‐9052, Ghent Belgium
| | - T. Serres
- Institut de Recherches sur la Catalyse et l'Environnement de LyonAlbert Einstein 2, Villeurbanne Lyon 69626 France
| | - G. B. Marin
- Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 914 B‐9052, Ghent Belgium
| | - C. Mirodatos
- Institut de Recherches sur la Catalyse et l'Environnement de LyonAlbert Einstein 2, Villeurbanne Lyon 69626 France
| | - J. W. Thybaut
- Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 914 B‐9052, Ghent Belgium
| | - Y. Schuurman
- Institut de Recherches sur la Catalyse et l'Environnement de LyonAlbert Einstein 2, Villeurbanne Lyon 69626 France
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20
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Karakaya C, Zhu H, Zohour B, Senkan S, Kee RJ. Detailed Reaction Mechanisms for the Oxidative Coupling of Methane over La
2
O
3
/CeO
2
Nanofiber Fabric Catalysts. ChemCatChem 2017. [DOI: 10.1002/cctc.201701172] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Canan Karakaya
- Mechanical Engineering Colorado School of Mines Golden CO 80401 USA
| | - Huayang Zhu
- Mechanical Engineering Colorado School of Mines Golden CO 80401 USA
| | - Bahman Zohour
- Department of Chemical and Biomolecular Engineering University of California Los Angeles CA 90095 USA
| | - Selim Senkan
- Department of Chemical and Biomolecular Engineering University of California Los Angeles CA 90095 USA
| | - Robert J. Kee
- Mechanical Engineering Colorado School of Mines Golden CO 80401 USA
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21
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Hayek NS, Lucas NS, Warwar Damouny C, Gazit OM. Critical Surface Parameters for the Oxidative Coupling of Methane over the Mn-Na-W/SiO 2 Catalyst. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40404-40411. [PMID: 29067811 DOI: 10.1021/acsami.7b14941] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The work here presents a thorough evaluation of the effect of Mn-Na-W/SiO2 catalyst surface parameters on its performance in the oxidative coupling of methane (OCM). To do so, we used microporous dealuminated β-zeolite (Zeo), or mesoporous SBA-15 (SBA), or macroporous fumed silica (Fum) as precursors for catalyst preparation, together with Mn nitrate, Mn acetate and Na2WO4. Characterizing the catalysts by inductively coupled plasma-optical emission spectroscopy, N2 physisorption, X-ray diffraction, high-resolution scanning electron microscopy-energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, and catalytic testing enabled us to identify critical surface parameters that govern the activity and C2 selectivity of the Mn-Na-W/SiO2 catalyst. Although the current paradigm views the phase transition of silica to α-cristobalite as the critical step in obtaining dispersed and stable metal sites, we show that the choice of precursors is equally or even more important with respect to tailoring the right surface properties. Specifically, the SBA-based catalyst, characterized by relatively closed surface porosity, demonstrated low activity and low C2 selectivity. By contrast, for the same composition, the Zeo-based catalyst showed an open surface pore structure, which translated up to fourfold higher activity and enhanced selectivity. By varying the overall composition of the Zeo catalysts, we show that reducing the overall W concentration reduces the size of the Na2WO4 species and increases the catalytic activity linearly as much as fivefold higher than the SBA catalyst. This linear dependence correlates well to the number of interfaces between the Na2WO4 and Mn2O3 species. Our results combined with prior studies lead us to single out the interface between Na2WO4 and Mn2O3 as the most probable active site for OCM using this catalyst. Synergistic interactions between the various precursors used and the phase transition are discussed in detail, and the conclusions are correlated to surface properties and catalysis.
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Affiliation(s)
- Naseem S Hayek
- The Wolfson Faculty of Chemical Engineering, Technion-Israel Institute of Technology , Haifa 3200003, Israel
| | - Nishita S Lucas
- The Wolfson Faculty of Chemical Engineering, Technion-Israel Institute of Technology , Haifa 3200003, Israel
| | - Christine Warwar Damouny
- The Wolfson Faculty of Chemical Engineering, Technion-Israel Institute of Technology , Haifa 3200003, Israel
| | - Oz M Gazit
- The Wolfson Faculty of Chemical Engineering, Technion-Israel Institute of Technology , Haifa 3200003, Israel
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22
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Poissonnier J, Thybaut JW, Marin GB. Large-Scale Exploitation of Bimodal Reaction Sequences Including Degradation: Comparison of Jet Loop and Trickle Bed Reactors. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03226] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeroen Poissonnier
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Joris W. Thybaut
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
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23
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Wang S, Cong L, Zhao C, Li Y, Pang Y, Zhao Y, Li S, Sun Y. First principles studies of CO 2 and O 2 chemisorption on La 2O 3 surfaces. Phys Chem Chem Phys 2017; 19:26799-26811. [PMID: 28948989 DOI: 10.1039/c7cp05471h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Periodic density functional theory calculations were performed to study the surface structures and stabilities of the La2O3 catalyst in CO2 and O2 environments, relevant to the conditions of the oxidative coupling of methane (OCM) reaction. Thermodynamic stabilities of the clean surfaces were predicted to follow the order of (001) ≥ (011) ≫ (110) > (111) > (101) > (100), with their direct band gaps at the Γ point following the similar order of (001) > (011) > (110) > (111) > (100) > (101). Hubbard U corrections to the La 4f and 5d orbitals do not qualitatively change the predictions of surface energies and band gaps. For the most stable (001) surface, CO2 chemisorption to form carbonate species is exothermic by -0.60 eV with a negligible energy barrier of 0.07 eV, whereas O2 chemisorption to form peroxide species is endothermic by 0.64 eV with a considerable energy barrier of 1.29 eV. For the slightly less stable (011) surface, both CO2 and O2 chemisorption can occur at different surface sites, and the same applies to the other studied surfaces. Dissociation temperatures of surface carbonate species range from 300 to 1000 K at pCO2 of 1 bar, which follow the order of (101) ≈ (110) > (111) ≈ (100) ≈ (011) ≫ (001), showing their strong sensitivity to the surface structure. Dissociation temperatures of surface peroxide species are mostly lower than the room temperature except for those of the (011) and (111) surfaces, although the significant kinetic barriers predicted should prevent their facile dissociation. Insights into the temperature-programmed desorption experiments and the methane reactivity of La2O3 in the OCM reaction were also given based on the results of our calculations.
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Affiliation(s)
- Shibin Wang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 100 Haike Road, Shanghai 201210, China.
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Obradović A, Thybaut JW, Marin GB. Oxidative Coupling of Methane: Opportunities for Microkinetic Model-Assisted Process Implementations. Chem Eng Technol 2016. [DOI: 10.1002/ceat.201600216] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lomonosov VI, Sinev MY. Oxidative coupling of methane: Mechanism and kinetics. KINETICS AND CATALYSIS 2016. [DOI: 10.1134/s0023158416050128] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Poissonnier J, Thybaut JW, Marin GB. Understanding and optimization of chemical reactor performance for bimodal reaction sequences. AIChE J 2016. [DOI: 10.1002/aic.15448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jeroen Poissonnier
- Laboratory for Chemical Technology; Ghent University; Technologiepark 914 Gent B-9052 Belgium
| | - Joris W. Thybaut
- Laboratory for Chemical Technology; Ghent University; Technologiepark 914 Gent B-9052 Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology; Ghent University; Technologiepark 914 Gent B-9052 Belgium
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Collett CH, McGregor J. Things go better with coke: the beneficial role of carbonaceous deposits in heterogeneous catalysis. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01236h] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbonaceous deposits on heterogeneous catalysts are traditionally associated with catalyst deactivation. However, they can play a beneficial role in many catalytic processes, e.g. dehydrogenation, hydrogenation, alkylation, isomerisation, Fischer–Tropsch, MTO etc. This review highlights the role and mechanism by which coke deposits can enhance catalytic performance.
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Affiliation(s)
- C. H. Collett
- Department of Chemical and Biological Engineering
- The University of Sheffield
- Sheffield S1 3JD
- UK
| | - J. McGregor
- Department of Chemical and Biological Engineering
- The University of Sheffield
- Sheffield S1 3JD
- UK
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Godini H, Fleischer V, Görke O, Jaso S, Schomäcker R, Wozny G. Thermal Reaction Analysis of Oxidative Coupling of Methane. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201400080] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Thybaut J, Marin G, Mirodatos C, Schuurman Y, van Veen A, Sadykov V, Pennemann H, Bellinghausen R, Mleczko L. A Novel Technology for Natural Gas Conversion by Means of Integrated Oxidative Coupling and Dry Reforming of Methane. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201400068] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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