论文信息 - The Effect of Feedstock Characteristics On Co, Co2, And H2 Evolution In A Entrained Flow Ultra-Fine Coal Particles Gasifier

The Effect of Feedstock Characteristics On Co, Co2, And H2 Evolution In A Entrained Flow Ultra-Fine Coal Particles Gasifier

Gasification is an efficient method of producing clean synthetic gas which can be used as fuel for electric generation and chemical production for industrial use. Gasification process simulation of coal inside a generic two stage entrained flow gasifier to produce syngas was undertaken. Numerical simulation of the oxygen blown coal gasification process inside a two stage entrained flow coal gasifier was studied with the commercial CFD solver ANSYS FLUENT. The purpose of this study was to use CFD simulation to improve understanding of the gasification processes in the two stage entrained flow coal gasifier. Three dimensional Navier-Stokes equations and transport equations were used to solve the eddy-breakup reaction model to predict gasification processes. The influences of coal/water slurry concentration and O2/coal ratio on the gasification process were investigated. The coal to water slurry concentrations in this study was 0.74 and O2/coal ratio was 0.91. Coal slurry feeding the predicted concentration of 47.7% and CO was 25% with higher syngas heating value of 27.65MJ/kg. The flow behavior in the gasifier was also examined and validated against available data in the literature.

P. P. Mashingo | G. R. John | C. F. Mhilu | P. Mashingo | C. Mhilu

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