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Dry Reforming of Shale Gas and Carbon Dioxide with Ni‐Ce‐Al 2 O 3 Catalyst: Syngas Production Enhanced over Ni‐CeO x Formation
Author(s) -
Liu Yan,
Wu Ye,
Akhtamberdinova Zarina,
Chen Xiaoping,
Jiang Guodong,
Liu Dong
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201800829
Subject(s) - syngas , carbon dioxide reforming , catalysis , syngas to gasoline plus , methane , oil shale , carbon dioxide , chemical engineering , carbon fibers , materials science , selectivity , chemistry , inorganic chemistry , steam reforming , waste management , organic chemistry , hydrogen production , composite material , composite number , engineering
The dry reforming of shale gas (methane and ethane with an average ratio of 4 : 1) with carbon dioxide (DRS) is considered to be a promising way to produce syngas, which widens the utilization of shale gas and mitigates carbon dioxide emission. In this paper, Ce modified Ni‐based catalysts were developed and the corresponding catalytic performances for DRS were investigated with a fixed bed reactor. Results showed that the catalyst containing 5 wt% of Ni and 5 wt% of Ce performed a best catalytic effect, including the selectivity of syngas and the carbon resistance performance, which is due to the good metal dispersion, strong interaction between Ni and Ce, and the formation of Ni‐CeO x solid solution. The electron transfer between Ni and Ce, substitution of Ni for Ce, and the sequential oxygen vacancies or defects, play significant roles in activating CH 4 , C 2 H 6 and CO 2 . The conversion of reactant gas increased with temperature, while the selectivity of syngas is little affected with temperature. In addition, the desired catalyst containing 5 wt% of Ni and 5 wt% of Ce showed good stability in the long‐time operation, which indicates that the Ce modified Ni‐based catalyst is a promising one for the dry reforming of shale gas.