Three Stage Equilibrium Model for Coal Gasification in Entrained Flow Gasifiers Based on Aspen Plus  

基于Aspen Plus的气流床煤气化炉三段平衡模型(英文)

作　　者：孔祥东 钟伟民 杜文莉 钱锋 

机构地区：[1]Key Laboratory of Advanced Control and Optimization for Chemical Processes (Ministry of Education), East China University of Science and Technology [2]Automation Institute, East China University of Science and Technology

出　　处：《Chinese Journal of Chemical Engineering》2013年第1期79-84,共6页中国化学工程学报（英文版）

基　　金：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)

摘　　要：A three stage equilibrium model is developed for coal gasification in the Texaco type coal gasifiersbased on Aspen Plus to calculate the composition of product gas, carbon conversion, and gasification teml^erature. The model is divided into three stages including pyrolysis and combustion stage, char gas reaction stage, and gas p.hase reaction stage. Part of the water produced in thepyrolysis and combust!on stag.e is assumed to be involved inthe 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.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.

关 键 词：coal gasification Texaco gasifier equilibrium model carbon conversion product gas composition 

分 类 号：TQ545[化学工程—煤化学工程] F019.1[经济管理—政治经济学]