1
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Zhang Z, Vanni M, Wu X, Hemberger P, Bodi A, Mitchell S, Pérez-Ramírez J. CO Cofeeding Affects Product Distribution in CH 3Cl Coupling over ZSM-5 Zeolite: Pressure Twists the Plot. Angew Chem Int Ed Engl 2024; 63:e202401060. [PMID: 38451557 DOI: 10.1002/anie.202401060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/08/2024]
Abstract
C1 coupling reactions over zeolite catalysts are central to sustainable chemical production strategies. However, questions persist regarding the involvement of CO in ketene formation, and the impact of this elusive oxygenate intermediate on reactivity patterns. Using operando photoelectron photoion coincidence spectroscopy (PEPICO), we investigate the role of CO in methyl chloride conversion to hydrocarbons (MCTH), a prospective process for methane valorization with a reaction network akin to methanol to hydrocarbons (MTH) but without oxygenate intermediates. Our findings reveal the transformative role of CO in MCTH at the low pressures, inducing ketene formation in MCTH and boosting olefin production, confirming the Koch carbonylation step in the initial stages of C1 coupling. We uncover pressure-dependent product distributions driven by CO-induced ketene formation, and its subsequent desorption from the zeolite surface, which is enhanced at low pressure. Inspired by the above results, extension of the co-feeding approach to CH3OH as another simple oxygenate showcases the additional potential for improved catalyst stability in MCTH at ambient pressure.
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Affiliation(s)
- Zihao Zhang
- Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Matteo Vanni
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Xiangkun Wu
- Paul Scherrer Institute, 5232, Villigen, Switzerland
| | | | - Andras Bodi
- Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
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2
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Sustainable methane utilization technology via photocatalytic halogenation with alkali halides. Nat Commun 2023; 14:1410. [PMID: 36918590 PMCID: PMC10014990 DOI: 10.1038/s41467-023-36977-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 02/24/2023] [Indexed: 03/15/2023] Open
Abstract
Methyl halides are versatile platform molecules, which have been widely adopted as precursors for producing value-added chemicals and fuels. Despite their high importance, the green and economical synthesis of the methyl halides remains challenging. Here we demonstrate sustainable and efficient photocatalytic methane halogenation for methyl halide production over copper-doped titania using alkali halides as a widely available and noncorrosive halogenation agent. This approach affords a methyl halide production rate of up to 0.61 mmol h-1 m-2 for chloromethane or 1.08 mmol h-1 m-2 for bromomethane with a stability of 28 h, which are further proven transformable to methanol and pharmaceutical intermediates. Furthermore, we demonstrate that such a reaction can also operate solely using seawater and methane as resources, showing its high practicability as general technology for offshore methane exploitation. This work opens an avenue for the sustainable utilization of methane from various resources and toward designated applications.
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3
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Catalytic methane halogenation by bromine over microporous SAPO-34 zeolite material towards methyl bromide, dibromomethane and hydrogen bromide. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2022.104645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Kim Y, Woo Y, Park H, Kim Y, Chae HJ, Park MJ. Kinetic Modeling of Direct Methane Chlorination in Both Free-Radical and Catalytic Reactions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yeojin Kim
- Department of Chemical Engineering, Ajou University, Suwon 16499, Republic of Korea
| | - Yesol Woo
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
| | - Hyeon Park
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
| | - Youngmin Kim
- Carbon Resources Institute, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Ho-Jeong Chae
- Carbon Resources Institute, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Myung-June Park
- Department of Chemical Engineering, Ajou University, Suwon 16499, Republic of Korea
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
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5
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Dipu AL, Nishikawa Y, Inami Y, Iguchi S, Yamanaka I. Development of Highly Active Silica-Supported Nickel Phosphide Catalysts for Direct Dehydrogenative Conversion of Methane to Higher Hydrocarbons. Catal Letters 2022. [DOI: 10.1007/s10562-021-03612-w] [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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6
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Osuga R, Yasuda S, Sawada M, Manabe R, Shima H, Tsutsuminai S, Fukuoka A, Kobayashi H, Muramatsu A, Yokoi T. Oxidative Reforming of Methane over Rh-Containing Zeolites: Active Species and Role of Zeolite Framework. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryota Osuga
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Shuhei Yasuda
- Institute for Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Masato Sawada
- Institute for Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Ryo Manabe
- Mitsubishi Chemical Corporation, 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan
| | - Hisashi Shima
- Mitsubishi Chemical Corporation, 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan
| | - Susumu Tsutsuminai
- Mitsubishi Chemical Corporation, 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan
| | - Atsushi Fukuoka
- Institute for Catalysis, Hokkaido University, kita 21 Nishi 10, Kita-ku, Sapporo, 001-0021, Japan
| | - Hirokazu Kobayashi
- Institute for Catalysis, Hokkaido University, kita 21 Nishi 10, Kita-ku, Sapporo, 001-0021, Japan
| | - Atsushi Muramatsu
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Toshiyuki Yokoi
- Institute for Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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7
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Liu M, Liang J, Liu Z. Modulating the ferroelectric performance by altering halogen anions in the crystals of tetranuclear copper-clusters. NEW J CHEM 2021. [DOI: 10.1039/d1nj01894a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ferroelectric performance of tetranuclear copper clusters can be modulated by altering the free halogen anions existing in the crystal structure.
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Affiliation(s)
- Meiying Liu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- School of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
| | - Jingjing Liang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- School of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
| | - Zhiliang Liu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- School of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
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8
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Affiliation(s)
- Shangfei Huo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Rongliang Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Minhao Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Hong Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Weiwei Zuo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
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9
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Kwon S, Park S, Choi Y, Ko KC, Chae HJ, Na K. CH4 Chlorination with Cl2 using zeolites having different surface polarities: Catalysis descriptors explaining the electrophilic pathway. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Kikukawa Y, Seto K, Watanabe D, Kitajima H, Katayama M, Yamashita S, Inada Y, Hayashi Y. Induced Fitting and Polarization of a Bromine Molecule in an Electrophilic Inorganic Molecular Cavity and Its Bromination Reactivity. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yuji Kikukawa
- Department of Chemistry Graduate School of Natural Science and Technology Kanazawa University, Kakuma, Kanazawa 920-1192 Ishikawa Japan
- JST PRESTO 4-1-8 Honcho, Kawaguchi 332-0012 Saitama Japan
| | - Kensuke Seto
- Department of Chemistry Graduate School of Natural Science and Technology Kanazawa University, Kakuma, Kanazawa 920-1192 Ishikawa Japan
| | - Daiki Watanabe
- Department of Chemistry Graduate School of Natural Science and Technology Kanazawa University, Kakuma, Kanazawa 920-1192 Ishikawa Japan
| | - Hiromasa Kitajima
- Department of Chemistry Graduate School of Natural Science and Technology Kanazawa University, Kakuma, Kanazawa 920-1192 Ishikawa Japan
| | - Misaki Katayama
- Department of Applied Chemistry Graduate School of Life Sciences Ritsumeikan University 1-1-1 Noji-Higashi, Kusatsu 525-8577 Shiga Japan
| | - Shohei Yamashita
- Photon Factory Institute of Materials Structure Science High Energy Accelerator Research Organization 1-1 Oho, Tsukuba 305-0801 Ibaraki Japan
| | - Yasuhiro Inada
- Department of Applied Chemistry Graduate School of Life Sciences Ritsumeikan University 1-1-1 Noji-Higashi, Kusatsu 525-8577 Shiga Japan
| | - Yoshihito Hayashi
- Department of Chemistry Graduate School of Natural Science and Technology Kanazawa University, Kakuma, Kanazawa 920-1192 Ishikawa Japan
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11
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Kikukawa Y, Seto K, Watanabe D, Kitajima H, Katayama M, Yamashita S, Inada Y, Hayashi Y. Induced Fitting and Polarization of a Bromine Molecule in an Electrophilic Inorganic Molecular Cavity and Its Bromination Reactivity. Angew Chem Int Ed Engl 2020; 59:14399-14403. [PMID: 32511879 DOI: 10.1002/anie.202007406] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Indexed: 02/05/2023]
Abstract
Dodecavanadate, [V12 O32 ]4- (V12), possesses a 4.4 Å cavity entrance, and the cavity shows unique electrophilicity. Owing to the high polarizability, Br2 was inserted into V12, inducing the inversion of one of the VO5 square pyramids to form [V12 O32 (Br2 )]4- (V12(Br2)). The inserted Br2 molecule was polarized and showed a peak at 185 cm-1 in the IR spectrum. The reaction of V12(Br2) and toluene yielded bromination of toluene at the ring, showing the electrophilicity of the inserted Br2 molecule. Compound V12(Br2) also reacted with propane, n-butane, and n-pentane to give brominated alkanes. Bromination with V12(Br2) showed high selectivity for 3-bromopentane (64 %) among the monobromopentane products and preferred threo isomer among 2-,3-dibromobutane and 2,3-dibromopenane. The unique inorganic cavity traps Br2 leading the polarization of the diatomic molecule. Owing to its new reaction field, the trapped Br2 shows selective functionalization of alkanes.
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Affiliation(s)
- Yuji Kikukawa
- Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Ishikawa, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, 332-0012, Saitama, Japan
| | - Kensuke Seto
- Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Ishikawa, Japan
| | - Daiki Watanabe
- Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Ishikawa, Japan
| | - Hiromasa Kitajima
- Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Ishikawa, Japan
| | - Misaki Katayama
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Shiga, Japan
| | - Shohei Yamashita
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, 305-0801, Ibaraki, Japan
| | - Yasuhiro Inada
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Shiga, Japan
| | - Yoshihito Hayashi
- Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Ishikawa, Japan
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12
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Kwon S, Chae HJ, Na K. Control of methane chlorination with molecular chlorine gas using zeolite catalysts: Effects of Si/Al ratio and framework type. Catal Today 2020. [DOI: 10.1016/j.cattod.2020.01.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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A Review of Methane Activation Reactions by Halogenation: Catalysis, Mechanism, Kinetics, Modeling, and Reactors. Processes (Basel) 2020. [DOI: 10.3390/pr8040443] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Methane is the central component of natural gas, which is globally one of the most abundant feedstocks. Due to its strong C–H bond, methane activation is difficult, and its conversion into value-added chemicals and fuels has therefore been the pot of gold in the industry and academia for many years. Industrially, halogenation of methane is one of the most promising methane conversion routes, which is why this paper presents a comprehensive review of the literature on methane activation by halogenation. Homogeneous gas phase reactions and their pertinent reaction mechanisms and kinetics are presented as well as microkinetic models for methane reaction with chlorine, bromine, and iodine. The catalysts for non-oxidative and oxidative catalytic halogenation were reviewed for their activity and selectivity as well as their catalytic action. The highly reactive products of methane halogenation reactions are often converted to other chemicals in the same process, and these multi-step processes were reviewed in a separate section. Recent advances in the available computational power have made the use of the ab initio calculations (such as density functional theory) routine, allowing for in silico calculations of energy profiles, which include all stable intermediates and the transition states linking them. The available literature on this subject is presented. Lastly, green processes and the production of fuels as well as some unconventional methods for methane activation using ultrasound, plasma, superacids, and light are also reviewed.
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14
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A Comprehensive Review of the Applications of Hierarchical Zeolite Nanosheets and Nanoparticle Assemblies in Light Olefin Production. Catalysts 2020. [DOI: 10.3390/catal10020245] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Light olefins including ethylene, propylene and butylene are important building blocks in petrochemical industries to produce various chemicals such as polyethylene, polypropylene, ethylene oxide and cumene. Traditionally, light olefins are produced via a steam cracking process operated at an extremely high temperature. The catalytic conversion, in which zeolites have been widely used, is an alternative pathway using a lower temperature. However, conventional zeolites, composed of a pure microporous structure, restrict the diffusion of large molecules into the framework, resulting in coke formation and further side reactions. To overcome these problems, hierarchical zeolites composed of additional mesoporous and/or macroporous structures have been widely researched over the past decade. In this review, the recent development of hierarchical zeolite nanosheets and nanoparticle assemblies together with opening up their applications in various light olefin productions such as catalytic cracking, ethanol dehydration to ethylene, methanol to olefins (MTO) and other reactions will be presented.
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15
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Kolesnichenko NV, Ezhova NN, Snatenkova YM. Lower olefins from methane: recent advances. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Modern methods for methane conversion to lower olefins having from 2 to 4 carbon atoms per molecule are generalized. Multistage processing of methane into ethylene and propylene via syngas or methyl chloride and methods for direct conversion of CH4 to ethylene are described. Direct conversion of syngas to olefins as well as indirect routes of the process via methanol or dimethyl ether are considered. Particular attention is paid to innovative methods of olefin synthesis. Recent achievements in the design of catalysts and development of new techniques for efficient implementation of oxidative coupling of methane and methanol conversion to olefins are analyzed and systematized. Advances in commercializing these processes are pointed out. Novel catalysts for Fischer – Tropsch synthesis of lower olefins from syngas and for innovative technique using oxide – zeolite hybrid catalytic systems are described. The promise of a new route to lower olefins by methane conversion via dimethyl ether is shown. Prospects for the synthesis of lower olefins via methyl chloride and using non-oxidative coupling of methane are discussed. The most efficient processes used for processing of methane to lower olefins are compared on the basis of degree of conversion of carbonaceous feed, possibility to integrate with available full-scale production, number of reaction stages and thermal load distribution.
The bibliography includes 346 references.
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16
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Dipu AL, Ohbuchi S, Nishikawa Y, Iguchi S, Ogihara H, Yamanaka I. Direct Nonoxidative Conversion of Methane to Higher Hydrocarbons over Silica-Supported Nickel Phosphide Catalyst. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03955] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arnoldus Lambertus Dipu
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan
| | - Shunya Ohbuchi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan
| | - Yuta Nishikawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan
| | - Shoji Iguchi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan
| | - Hitoshi Ogihara
- Department of Applied Chemistry, Saitama University, Shimo-Ookubo, Saitama, 338-8570, Japan
| | - Ichiro Yamanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan
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17
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Fernandez-Ruiz C, Bedia J, Andreoli S, Eser S, Rodriguez JJ, Gómez-Sainero LM. Selectivity to Olefins in the Hydrodechlorination of Chloroform with Activated Carbon-Supported Palladium Catalysts. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04262] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. Fernandez-Ruiz
- Department of Chemical Engineering, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, E-28049 Madrid, Spain
| | - J. Bedia
- Department of Chemical Engineering, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, E-28049 Madrid, Spain
| | - S. Andreoli
- EMS Energy Institute and Department of Energy and Mineral Engineering, Penn State University, 114a Hosler Building, University Park, Pennsylvania 16802, United States
| | - S. Eser
- EMS Energy Institute and Department of Energy and Mineral Engineering, Penn State University, 114a Hosler Building, University Park, Pennsylvania 16802, United States
| | - J. J. Rodriguez
- Department of Chemical Engineering, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, E-28049 Madrid, Spain
| | - L. M. Gómez-Sainero
- Department of Chemical Engineering, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, E-28049 Madrid, Spain
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18
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Synthesis of Ti-Al binary oxides and their catalytic application for C-H halogenation of phenols, aldehydes and ketones. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Liu T, Lu T, Yang M, Zhou L, Yang X, Gao B, Su Y. Enhanced Catalytic Performance of CuO–ZnO–Al2O3/SAPO-5 Bifunctional Catalysts for Direct Conversion of Syngas to Light Hydrocarbons and Insights into the Role of Zeolite Acidity. Catal Letters 2019. [DOI: 10.1007/s10562-019-02901-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Bilke M, Losch P, Vozniuk O, Bodach A, Schüth F. Methane to Chloromethane by Mechanochemical Activation: A Selective Radical Pathway. J Am Chem Soc 2019; 141:11212-11218. [PMID: 31260287 DOI: 10.1021/jacs.9b04413] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
State-of-the-art processes to directly convert methane into CH3Cl are run under corrosive conditions and typically yield a mixture of chloromethanes requiring subsequent separation. We report a mechanochemical strategy to selectively convert methane to chloromethane under overall benign conditions, employing trichloroisocyanuric acid (TCCA) as a cheap and noncorrosive solid chlorinating agent. TCCA is shown to release active chlorine species upon milling with Lewis acids such as alumina and ceria to functionalize methane at moderate temperatures (<150 °C). A thorough parameter optimization led to a maximum methane chlorination rate of 0.8 μmol(CH4,conv) (g(catalyst) s)-1. Findings were compared to the thermal reaction of methane with TCCA and evidenced that mechanochemical activation permitted significantly lower reaction temperatures (90 vs 200 °C) at a drastically improved CH3Cl selectivity (95% vs 66% at 30% conversion). Considering the characterization of the interaction between TCCA and Lewis acids as well as the in-depth analysis of byproducts, we suggest a plausible reaction mechanism and a possible regeneration of the chlorinating agent.
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Affiliation(s)
- Marius Bilke
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Pit Losch
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Olena Vozniuk
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Alexander Bodach
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Ferdi Schüth
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
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21
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Hull KL, Cairns AJ, Haq M. Bromate Oxidation of Ammonium Salts: In Situ Acid Formation for Reservoir Stimulation. Inorg Chem 2019; 58:3007-3014. [PMID: 30777427 DOI: 10.1021/acs.inorgchem.8b02891] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A redox chemistry approach has been employed to synthesize an assortment of acids in the subterranean environment for the purpose of enhancing productivity from hydrocarbon-bearing rock formations. Experimental studies revealed that bromate selectively oxidizes a series of ammonium salts NH4X where X = F-, Cl-, Br-, SO42-, and CF3CO2- to produce 5-17 wt % HX. Importantly, the in situ method allows strategic placement of the acid in the zone of interest where the fluid is heated, and the reaction is triggered. Ammonium counteranions are shown to influence the kinetics of the bromate-ammonium reaction, and the conditions are tailored to promote oxidation of ammonium at reservoir temperatures. The reaction is observed to be acid-catalyzed, where the formation of bromous acid (HBrO2) is involved in the rate-limiting step. As a result, an induction period that scales with the p Ka of the acid being formed is followed by rapid formation of the reaction products.
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Affiliation(s)
- Katherine L Hull
- Aramco Services Company: Aramco Research Center - Houston, 16300 Park Row , Houston , Texas 77084 , United States
| | - Amy J Cairns
- Aramco Services Company: Aramco Research Center - Houston, 16300 Park Row , Houston , Texas 77084 , United States
| | - Marium Haq
- Aramco Services Company: Aramco Research Center - Houston, 16300 Park Row , Houston , Texas 77084 , United States
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22
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Paunović V, Pérez-Ramírez J. Catalytic halogenation of methane: a dream reaction with practical scope? Catal Sci Technol 2019. [DOI: 10.1039/c9cy00625g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Methane halogenation over solid materials is dominated by radical intermediates, the stabilization of which through confinement effects enhances the activity.
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Affiliation(s)
- Vladimir Paunović
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- Switzerland
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23
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Li QM, Zhang M, Wang CM, Zhu YA, Zhou XG, Xie ZK. Effects of methylating agent and Brønsted acidity on methylation activity of olefins in CHA-structured zeolites: A periodic DFT study. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.12.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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