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Zhu P, Bian W, Liu B, Deng H, Wang L, Huang X, Spence SL, Lin F, Duan C, Ding D, Dong P, Ding H. Direct conversion of methane to aromatics and hydrogen via a heterogeneous trimetallic synergistic catalyst. Nat Commun 2024; 15:3280. [PMID: 38627521 PMCID: PMC11021476 DOI: 10.1038/s41467-024-47595-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Non-oxidative methane dehydro-aromatization reaction can co-produce hydrogen and benzene effectively on a molybdenum-zeolite based thermochemical catalyst, which is a very promising approach for natural-gas upgrading. However, the low methane conversion and aromatics selectivity and weak durability restrain the realistic application for industry. Here, a mechanism for enhancing catalysis activity on methane activation and carbon-carbon bond coupling has been found to promote conversion and selectivity simultaneously by adding platinum-bismuth alloy cluster to form a trimetallic catalyst on zeolite (Pt-Bi/Mo/ZSM-5). This bimetallic alloy cluster has synergistic interaction with molybdenum: the formed CH3* from Mo2C on the external surface of zeolite can efficiently move on for C-C coupling on the surface of Pt-Bi particle to produce C2 compounds, which are the key intermediates of oligomerization. This pathway is parallel with the catalysis on Mo inside the cage. This catalyst demonstrated 18.7% methane conversion and 69.4% benzene selectivity at 710 °C. With 95% methane/5% nitrogen feedstock, it exhibited robust stability with slow deactivation rate of 9.3% after 2 h and instant recovery of 98.6% activity after regeneration in hydrogen. The enhanced catalytic activity is strongly associated with synergistic interaction with Mo and ligand effects of alloys by extensive mechanism studies and DFT calculation.
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Affiliation(s)
- Pengxi Zhu
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
- Department of Mechanical Engineering, George Mason University, Fairfax, VA, 22030, USA
| | - Wenjuan Bian
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Bin Liu
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
- Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Hao Deng
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
- Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Lucun Wang
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Xiaozhou Huang
- Department of Mechanical Engineering, George Mason University, Fairfax, VA, 22030, USA
| | | | - Feng Lin
- Department of Chemistry, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Chuancheng Duan
- Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Dong Ding
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA.
| | - Pei Dong
- Department of Mechanical Engineering, George Mason University, Fairfax, VA, 22030, USA.
| | - Hanping Ding
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA.
- School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK, 73019, USA.
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Zhang A, Wang H, Miles J, Shan J, Sardar A, Guillen L. Two-Step Process for Feasible Conversion of Ethane to Aromatics: Concept and Demonstration. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03772] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aihua Zhang
- Nice America Research, Inc., 2091 Stierlin Court, Mountain View, California 94043, United States
| | - Hui Wang
- Nice America Research, Inc., 2091 Stierlin Court, Mountain View, California 94043, United States
| | - Joshua Miles
- Nice America Research, Inc., 2091 Stierlin Court, Mountain View, California 94043, United States
| | - Junjun Shan
- Nice America Research, Inc., 2091 Stierlin Court, Mountain View, California 94043, United States
| | - Amin Sardar
- Nice America Research, Inc., 2091 Stierlin Court, Mountain View, California 94043, United States
| | - Louis Guillen
- Nice America Research, Inc., 2091 Stierlin Court, Mountain View, California 94043, United States
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Mevawala C, Bai X, Kotamreddy G, Bhattacharyya D, Hu J. Multiscale Modeling of a Direct Nonoxidative Methane Dehydroaromatization Reactor with a Validated Model for Catalyst Deactivation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chirag Mevawala
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Xinwei Bai
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Goutham Kotamreddy
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Debangsu Bhattacharyya
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Jianli Hu
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
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Xiang Y, Wang H, Cheng J, Matsubu J. Progress and prospects in catalytic ethane aromatization. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01878a] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optimal ethane-to-aromatics catalyst design requires carefully tuning metal and zeolite catalytic sites to work in conjunction.
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Affiliation(s)
- Yizhi Xiang
- NICE America Research, Inc
- A Shenhua Company
- Mountain View
- USA
- Dave C. Swalm School of Chemical Engineering
| | - Hui Wang
- NICE America Research, Inc
- A Shenhua Company
- Mountain View
- USA
| | - Jihong Cheng
- NICE America Research, Inc
- A Shenhua Company
- Mountain View
- USA
| | - John Matsubu
- NICE America Research, Inc
- A Shenhua Company
- Mountain View
- USA
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