对某厂低压含烃特殊原料气进行低温甲醇洗工艺设计，该原料气属于低压进料，且含有苯等有机烃类。针对原料气具体特点，设计了2套低温甲醇洗工艺，工艺Ⅰ是采用传统11塔低温甲醇洗方案，工艺Ⅱ采用9塔低温甲醇洗方案。借助Aspen Plus模拟分析表明，2套工艺均能达到净化要求，工艺Ⅱ较工艺Ⅰ有较好的节能及净化效果。对以后低压含烃特殊原料气的净化提供了参考。

Rectisol processes are designed for special low-pressure feed gas containing hydrocarbon components,such as benzene and other organic hydrocarbons,for a factory.Given the specific characteristics of feed gas,two sets of Rectisol processes are designed as process Ⅰ and process Ⅱ.Process Ⅰ adopts traditional Rectisol flowsheet with 11 towers.Process Ⅱ adopts Rectisol flowsheet with 9 towers employed.According to the simulation analysis by Aspen plus,both processes can meet the purification requirements.Process Ⅱ shows better energy saving and purification effect than process Ⅰ.This work provides a reference for the purification of low-pressure special feed gas containing hydrocarbon components.

徐立圆(1995-),男,硕士生