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《中国化学工程学报(英文版)》 2013-01
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Three Stage Equilibrium Model for Coal Gasification in Entrained Flow Gasifiers Based on Aspen Plus

KONG Xiangdong 1 , ZHONG Weimin 2 , DU Wenli 1 and QIAN Feng 1, 1 Key Laboratory of Advanced Control and Optimization for Chemical Processes (Ministry of Education), East China University of Science and Technology, Shanghai 200237, China 2 Automation Institute, East China University of Science and Technology, Shanghai 200237, China  
A three stage equilibrium model is developed for coal gasification in the Texaco type coal gasifiers based on Aspen Plus to calculate the composition of product gas, carbon conversion, and gasification temperature. The model is divided into three stages including pyrolysis and combustion stage, char gas reaction stage, and gas phase reaction stage. Part of the water produced in the pyrolysis and combustion stage is assumed to be involved in the second stage to react with the unburned carbon. Carbon conversion is then estimated in the second stage by steam participation ratio expressed as a function of temperature. And the gas product compositions are calculated from gas phase reactions in the third stage. The simulation results are consistent with published experimental data.
【Fund】: Supported by the Major State Basic Research Development Program of China(2012CB720500);; the National Natural Science Foundation of China(U1162202 61174118);; the National Science Fund for Outstanding Young Scholars(61222303);; Shanghai Leading Academic Discipline Project(B504)
【CateGory Index】: TQ545
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