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Chen X, Tian X, Zheng C, Zhao H. CrO /Ce1-Zr O2 for chemical looping propane oxidative dehydrogenation: the redox interaction between CrO and the support. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Analysis and Model-Based Description of the Total Process of Periodic Deactivation and Regeneration of a VOx Catalyst for Selective Dehydrogenation of Propane. Catalysts 2020. [DOI: 10.3390/catal10121374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study intends to provide insights into various aspects related to the reaction kinetics of the VOx catalyzed propane dehydrogenation including main and side reactions and, in particular, catalyst deactivation and regeneration, which can be hardly found in combination in current literature. To kinetically describe the complex reaction network, a reduced model was fitted to lab scale experiments performed in a fixed bed reactor. Additionally, thermogravimetric analysis (TGA) was applied to investigate the coking behavior of the catalyst under defined conditions considering propane and propene as precursors for coke formation. Propene was identified to be the main coke precursor, which agrees with results of experiments using a segmented fixed bed reactor (FBR). A mechanistic multilayer-monolayer coke growth model was developed to mathematically describe the catalyst coking. Samples from long-term deactivation experiments in an FBR were used for regeneration experiments with oxygen to gasify the coke deposits in a TGA. A power law approach was able to describe the regeneration behavior well. Finally, the results of periodic experiments consisting of several deactivation and regeneration cycles verified the long-term stability of the catalyst and confirmed the validity of the derived and parametrized kinetic models for deactivation and regeneration, which will allow model-based process development and optimization.
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Yao Y, Zuo M, Zhou H, Li J, Shao H, Jiang T, Liao X, Lu S. One-Pot Preparation of Ni 2
P/γ-Al 2
O 3
Catalyst for Dehydrogenation of Propane to Propylene. ChemistrySelect 2018. [DOI: 10.1002/slct.201801964] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yue Yao
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology, 29 13th Avenue, TEDA, Tianjin; 300457 People's Republic of China
| | - Miaoguo Zuo
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology, 29 13th Avenue, TEDA, Tianjin; 300457 People's Republic of China
| | - Hualan Zhou
- Research Institute of Nanjing University in Lianyungang; Jiangsu 222000 People's Republic of China
| | - Jianyong Li
- COOEC Fabrication Company, 26 3th Avenue, TEDA; Tianjin 300457 People's Republic of China
| | - Huaiqi Shao
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology, 29 13th Avenue, TEDA, Tianjin; 300457 People's Republic of China
| | - Tao Jiang
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology, 29 13th Avenue, TEDA, Tianjin; 300457 People's Republic of China
| | - Xiaoyuan Liao
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology, 29 13th Avenue, TEDA, Tianjin; 300457 People's Republic of China
| | - Shuxiang Lu
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology, 29 13th Avenue, TEDA, Tianjin; 300457 People's Republic of China
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A review on reactivity and stability of heterogeneous metal catalysts for deoxygenation of bio-oil model compounds. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.06.049] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mangold M, Khlopov D, Danker G, Palis S, Svjatnyj V, Kienle A. Development and Nonlinear Analysis of Dynamic Plant Models in ProMoT /Diana. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201400003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zagoruiko AN, Belyi AS, Smolikov MD, Noskov AS. Unsteady-state kinetic simulation of naphtha reforming and coke combustion processes in the fixed and moving catalyst beds. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.07.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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