摘要
采用系统熵分析的方法对变压吸附气体分离过程进行了分析。并且以PSA空气分离过程为例进行了计算,得到了一个周期内升压阶段和高压吸附阶段压缩机向系统提供的负熵、产品气体的熵以及分离熵效率随吸附压力、解吸压力的变化情况,找出了分离熵效率最高时的最佳吸附压力和解吸压力。
Pressure swing adsorption (PSA) gas separation process is analyzed with the systematic entropy analytical method. Taking for example PSA air separation process, variations of negative entropy, and entropy of product gas and separation efficiency of entropy with changing of adsorption pressure and desorption pressure are obtained during pressure boosting stage and high-pressure adsorption stage in a period. The above variations are supplied by a compressor. The optimal adsorption pressure and desorption pressure are also obtained when separation efficiency of entropy reaches maximum.
出处
《冶金动力》
2008年第1期31-34,共4页
Metallurgical Power
关键词
变压吸附
气体分离
熵
负熵
分离熵效率
pressure swing adsorption
gas separation
entropy
negative entropy
separation efficiency of entropy