(701e) Carbon Dioxide Gasification of Kraft Black Liquor Char in a Laboratory Char Bed Reactor
AIChE Annual Meeting
2006
2006 Annual Meeting
Forest Products Division
Wood Biorefinery Processes and Products
Friday, November 17, 2006 - 4:55pm to 5:20pm
In the current study a series of pyrolysis and CO2 gasification experiments were conducted on a bed of kraft black char under a perpendicular impinging jet. The experiments demonstrated that the char bed carbon gasification rates are externally mass transfer limited. The mass transfer is further decreased by a net molar out-flow caused by the conversion of one mole of reactant CO2 to two moles of product CO via gasification. Predictions of the mass transfer coefficient using the COMSOL MultiPhysics finite element program were comparable with those obtained from the experimental data.
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