摘要
应用PRO/II工程模拟软件对某60万t/a煤气化制甲醇项目低温甲醇洗酸性气体吸收塔进行了模拟,通过对比不同热力学模型的模拟结果,明确了H2-CO2-CH3OH三元体系偏离高压和低温条件下的气液平衡是模拟误差较大的原因.将修正后的SRK-SIMSCI热力学模型用于吸收塔的计算,结果表明,该模型能够较好地反映该工艺装置的实际操作状况.
ABSTRACT With the aid of process software PRO/II, a rectisol acidic gas absorption column of the 600 000 t/a coal-to-methanol plant is set up and the calculation is performed. By comparison with the results of the different thermodynamics models, it was clear that vapor-liquid equilibrium of H2-CO2-CH3 OH system deviated from the situation which under high pressure at low temperature. That＇s the reason for the simulation error. By improved SRK-SIMSCI thermodynamics model, the result showed that the model was satisfactorily agree with the real operation condition of the industry unit. KEY WORDS gas purification, rectisol, process simulation
出处
《煤炭转化》
CAS
CSCD
北大核心
2013年第1期89-92,共4页
Coal Conversion
关键词
煤气净化
低温甲醇洗
过程模拟
gas purification, rectisol, process simulation
