环丁烯砜合成工艺优化研究

Optimization research on sulfolane synthesis process

采用不同工艺合成环丁烯砜的物耗相差很大,为优化环丁烯砜合成工艺流程,提出了双釜连续合成工艺、常压闪蒸、低压深拔低温回收及脱硫塔工艺。该工艺流程物耗低,环丁烯砜脱硫效果好;通过流程模拟优化,找出了最佳生产工艺条件,即原料配比为1.70时环丁烯砜生产效益最佳,同时二氧化硫排放量最少。

There are big differences in materials consumption between different processes for sulfolane production.In order to optimize the sulfolane synthesis process,a process containing double tower continuous synthesis,flash evaporation at atmospheric pressure,deep drawing at low pressure and recovery at low-temperature,and desulfurization tower is put forward.This process consumes lower materials and exhibits a good desulfurization effect for sulfolane product.Through process simulation optimization,the best production process conditions are found that the raw material ratio is 1.7,under which the production efficiency of sulfolane is the best and the emission of sulfur dioxide is the least.