Citation: Xuan QU, Qin-fen WANG, Shuai YAN, Jun FENG, Jian-shu ZHANG, Rong ZHANG, Ji-cheng BI. The behavior of the different catalysts for model carbon hydrogasification[J]. Journal of Fuel Chemistry and Technology, ;2022, 50(1): 1-10. doi: 10.1016/S1872-5813(21)60136-6 shu

The behavior of the different catalysts for model carbon hydrogasification

Xuan QU ^1, ,
Qin-fen WANG ² ,
Shuai YAN ³ ,
Jun FENG ^{1, 4} ,
Jian-shu ZHANG ^2,, ,
Rong ZHANG ^1,, ,
Ji-cheng BI ¹

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan-Provincial Ministry of Education to Build a National Key Laboratory Breeding Base, Shihezi University, Shihezi 832003, China
3.
Department of Energy and Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
4.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: Jian-shu ZHANG, zjschem@163.com Rong ZHANG, zrbd@sxicc.ac.cn
Received Date: 11 June 2021
Revised Date: 2 July 2021

Figures(10)

The catalytic hydrogasification of activated carbon/bituminous char/anthracite char with the different catalysts were performed in a pressurized thermogravimetry analysis (PTGA). The GC, BET were used to characterize the physical structure and chemical reaction process of carbon. The function principle of Co to the carbon-hydrogen reaction was preliminarily obtained. The results showed that the catalytic activity of transition metals (Fe, Co, Ni) was significantly better than that of alkali metals and alkaline earth metals during the process of activated carbon hydrogasification. There were two catalytic zones of low temperature (600−750 ℃) and high temperature (> 800 ℃) in the catalytic process. The emergence of the low temperature catalytic zone could be attributed to the interaction between the transition metal oxides and carbon. The transition metal was embedded in carbon layer structure during the activated carbon hydrogasification, then parts of carbon structure was activated, resulting in the cleavage of carbon-carbon bonds. The adequate active hydrogen could be supplied by Co at 850 ℃ when the pressure was beyond 1 MPa. Briefly, the reaction temperature was the crucial factor for the cleavage of carbon-carbon bonds. The model carbon with higher specific surface area and weaker carbon structure could be converted efficiently even with lower loading amount of catalyst.
- model carbon,
- catalytic hydrogasification,
- PTGA
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