变压吸附技术在MTO脱甲烷系统中的应用性分析  

The Application Analysis of PSA for MTO Demethanizer

作　　者：董巍巍 张少石[2] 余雷 李本勇 梅华[2] 

机构地区：[1]中建安装工程有限公司,江苏南京210046 [2]南京工业大学化学化工学院,江苏南京210009

出　　处：《广东化工》2013年第24期45-46,48,共3页Guangdong Chemical Industry

摘　　要：针对目前Lummus和惠生的MTO烯烃分离工艺都存在尾气中乙烯损失量大,吸收剂循环量大和分离能耗高等缺陷,利用Aspen Plus软件模拟计算了两种降低能耗成本的改进流程。本研究通过在脱甲烷系统中引入变压吸附装置,形成吸附-精馏的耦合,提高乙烯总收率的同时达到降低能耗的目的。Based on the high losses of ethylene in the exhaust, high circulation of absorbents and high consumption of energy in Lummus and Wison MTO olefin separation process, two improved configurations to reduce the cost of energy consumptions were simulated with the software Aspen Plus. The overall yield of ethylene was increased and the energy expenditure was reduced while the new adsorption-distillation coupling process with PSA devices was introduced into demethanizing system.

关 键 词：变压吸附 甲醇制烯烃(MTO) 脱甲烷塔 分离 

分 类 号：TQ221.21[化学工程—有机化工]