芳构化碳四原料中甲醇分离工艺模拟

Study on methanol separation process simulation of C_4 aromatization raw material

应用Aspen Plus模拟软件,参照甲基叔丁基醚装置甲醇回收单元的工艺流程及工艺参数,制定了适合于河南濮阳恒润筑邦石油化工有限公司的芳构化碳四原料脱甲醇工艺路线,确定了水洗塔、回收塔和精馏塔的操作条件。结果表明,在模拟操作条件下,萃余碳四中甲醇含量小于1μg/g,水含量小于1 000μg/g,满足了芳构化催化剂的要求;回收甲醇质量达到GB 338—2011要求。

The methanol separation process of C4 aromatization raw material was set up, and the operating conditions of washing column ,recovery column and rectification column were defined by Aspen Plus simulation software for Puyang Hengrun Zhubang Petroleum Chemical Co Ltd according to the process and parameters of methanol recovery unit in MTBE plant. The results showed that under the defined conditions,the methanol content in C4 raffinate was less than 1 μg/g, the water content was less than 1 000μg/g,which could meet the requirement of aromatizion catalyst and the quality index of recoved methanol in GB 338-2011.