3 years ago

Catalytic coal gasification for methane production: A review

Catalytic coal gasification for methane production: A review
Weiwei Li, Zhongliang Yu, Guoqing Guan
The representative processes of Exxon, Great Point Energy and ENN-ICC were presented. The suitable temperature for catalytic coal gasification to produce methane was 973–1023 K. The suitable pressure for catalytic coal gasification to produce methane was 3.5 MPa. The single-component, composite and disposable catalysts were compared. Catalytic coal gasification for methane production is a promising technology in the clean coal utilization field. In this review, the technologies for coal-derived natural gas production, the catalytic coal gasification processes and the used reactors were compared. The compared catalysts mainly included single-component, composite, and disposable catalysts. The effects of catalyst properties included composition, preparation method, supporter and loading amount were further illustrated. The influences of coal properties included char preparation method, particle size, and ash content on catalytic performance were investigated. The effects of temperatures and pressures on gasification performance were discussed in details. The evaporation, melting, decomposition, and inactivation of catalyst under various temperatures and pressures were also analyzed. It is expected to provide comprehensive information on the researches of catalytic coal gasification for methane production.
Open access
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