摘要
借助Matlab建立了粉煤一维气流床气化动力学模型,用于模拟气化炉运行状况,优化操作条件。新建模型的计算结果与Aspen plus结果较为吻合,有效合成气相对误差不大于1%。运用新模型,分析了粒径、操作条件及二元混煤对气流床气化炉运行结果的影响。结果表明,粒径越小,越有利于气化的进行,碳转化率越高;汽煤比的最佳工况应控制在0.10 kg/kg～0.15 kg/kg,氧煤比的最佳工况应控制在0.45 m3/kg～0.55 m3/kg;二元混煤A+B气化反应性能介于煤A和煤B之间。
A1-D kinetic gasification model was established to simulate the operation of entrained flow gasifier and optimize the operation conditions by the Matlab programming.The results of the new model were in good agreement with those of Aspen plus,and the relative error of effective syngas was less than1%.By using the new model,the effects of particle size,operation conditions and binary blending coal on the operation results of the entrained flow gasifier were analyzed.The results showed that the smaller the particle size,the better the gasification process and the higher the carbon conversion rate.And the optimum conditions of steam-coal ratio should be controlled at 0.10kg/kg-0.15kg/kg,the optimum conditions of oxygen-coal ratio should be controlled at 0.45m^3/kg-0.55m^3/kg,and the gasification reaction performance of binary blending coal A+B was between coal A and coal B.
作者
许慎启
Xu Shenqi(Air Liquide (China) R & D Co.,Ltd.,Shanghai 201108,China)
出处
《煤化工》
CAS
2018年第6期19-25,共7页
Coal Chemical Industry
基金
闵行区科技项目(其他)(2016MH180)
