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Möller P, Papp H. Heats of Adsorption and Reaction of CO on Iron/Manganese Oxide Catalysts. ADSORPT SCI TECHNOL 2016. [DOI: 10.1177/026361748700400303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The heats of adsorption and reaction of CO have been measured on reduced Fe/Mn oxide catalysts of different compositions at temperatures between 263 and 543 K. The heats of adsorption depend only to a small extent on the manganese content of the catalyst and are independent of the temperature of reduction. The former fact points to a more structural than electronic effect of the manganese oxide addition. The heats of adsorption are, however, strongly dependent on measurement temperature, increasing from about 60 kJ mol-1 at 263 K to about 200 kJ mol-1 at 493 K and then decreasing again to about 180 kJ mol-1 at 543 K. This temperature dependence can be explained by consecutive reactions following CO adsorption, i.e. the Boudouard reaction, dissociation of CO and diffusion of carbon into the bulk of iron. The amount of CO adsorbed is correlated to the metallic iron content in the surfaces of the catalysts.
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Affiliation(s)
- P. Möller
- Lehrstuhl fürTechnische Chemie, Ruhr-Universitat Bochum, Universitatsstr, 150, D-4630 Bochum, West Germany
| | - H. Papp
- Lehrstuhl fürTechnische Chemie, Ruhr-Universitat Bochum, Universitatsstr, 150, D-4630 Bochum, West Germany
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Liu Y, Teng BT, Guo XH, Li Y, Chang J, Tian L, Hao X, Wang Y, Xiang HW, Xu YY, Li YW. Effect of reaction conditions on the catalytic performance of Fe-Mn catalyst for Fischer-Tropsch synthesis. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.03.046] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yang J, Liu Y, Chang J, Wang YN, Bai L, Xu YY, Xiang HW, Li YW, Zhong B. Detailed Kinetics of Fischer−Tropsch Synthesis on an Industrial Fe−Mn Catalyst. Ind Eng Chem Res 2003. [DOI: 10.1021/ie030135o] [Citation(s) in RCA: 120] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Yang
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Ying Liu
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jie Chang
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Yi-Ning Wang
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Liang Bai
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Yuan-Yuan Xu
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Hong-Wei Xiang
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Yong-Wang Li
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
| | - Bing Zhong
- Group of Catalytic Kinetics & Theoretical Modeling, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
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