低温甲醇合成工业试验装置运行分析

Operation Analysis on Industrial Test Set for Low-temperature Methanol Synthesis

依托建成的低温甲醇合成工业试验装置,采用控制变量法分析了反应温度、反应压力、合成气氢碳比等因素对低温甲醇合成的影响,并对其经济性进行分析。结果表明:在170℃、反应压力6.0 MPa、合成气流速1.5 L·min^(-1)、氢合成气氢碳比4.4左右的条件,CO单程转化率达到97.5%,甲醇选择性达到99.78%。通过与传统甲醇合成工艺对比,低温甲醇合成成本可降低106元。

The effect of reaction temperature, reaction pressure and ratio of hydrogen to carbon on the low-temperature methanol synthesis based on the industrial test set were analyzed by using control variable method. The results showed that under the conditions of 170 ℃, reaction pressure 6.0 MPa, flow rate 1.5 L·min^(-1) and hydrogen-carbon ratio 4.4, the conversion of CO was 97.5% and the selectivity of methanol was 99.78%. The methanol cost of low temperature methanol process could be reduced by 106 Yuan.