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Catalytic gasification of a Powder River Basin coal

Catalytic gasification of a Powder River Basin coal

Authors :
Brian F. Towler
Tiberiu Popa
Rachid B. Slimane
Morris D. Argyle
Maohong Fan
David A. Bell
Source :
Fuel. 103:161-170
Publication Year :
2013
Publisher :
Elsevier BV, 2013.

Abstract

Catalytic gasification of a Wyodak low-sulfur sub-bituminous coal from the Powder River Basin of Wyoming was investigated using an inexpensive catalyst, Na 2 CO 3 , widely available in Wyoming. Experiments were performed in an atmospheric pressure fixed-bed laboratory gasifier. The effects of different factors including feed gas composition, catalyst loading and reaction temperature on the associated coal pyrolysis and char gasification were evaluated. Na 2 CO 3 was found to be active during both pyrolysis and gasification steps and it can considerably decrease the activation energy of gasification step. The optimal Na 2 CO 3 addition level is approximately 3 wt.%. Shrinking core model and random pore model can be used to fit the kinetic data obtained under both non-catalytic and catalytic conditions.

Details

ISSN :
00162361
Volume :
103
Database :
OpenAIRE
Journal :
Fuel
Accession number :
edsair.doi...........c0f6fcbe03361d168eed2af9dfc8fff2
Full Text :
https://doi.org/10.1016/j.fuel.2012.08.049