CO和/或CO_2加氢直接合成二甲醚过程的热力学分析  

Thermodynamic Analysis for Direct Synthesis of Dimethyl Ether from CO and/or CO_2 Hydrogenation

作　　者：安欣[1] 李晋鲁[2] 王金福[1] 

机构地区：[1]清华大学化工系,北京100084 [2]清华大学化学系,北京100084

出　　处：《天然气化工—C1化学与化工》2007年第4期5-7,15,共4页Natural Gas Chemical Industry

摘　　要：对CO和/或CO2加氢直接合成二甲醚反应体系进行了热力学计算与分析,计算了不同初始原料气组成、温度、压力下反应体系中二甲醚的平衡收率。结果表明:二甲醚平衡收率随着温度的升高而降低,随着压力和n(CO)/n(CO+CO2)比值的升高而升高。还给出CO、CO2混合加氢合成甲醇反应体系的热力学计算结果进行对照。Thermodynamic analysis was carried out for the reaction system of dimethyl ether synthesis by CO and/or CO2 hydrogenation. The equilibrium yields of dimethyl ether were calculated for different initial feed gas compositions,temperature and pressure. The results showed that the equilibrium yield of dimethyl ether decreased with the increase of temperature,and increased with the increase of pressure or CO/（ CO ＋ CO2 ） molar ratio. The thermodynamic data for methanol synthesis by CO/CO2 mixed gas hydrogenation were also calculated out for comparison.

关 键 词：一氧化碳 二氧化碳 加氢 二甲醚直接合成 甲醇 热力学 

分 类 号：TQ223.2[化学工程—有机化工]