摘要
综述了近年来碳酸二甲酯(DMC)的非光气法合成工艺和DMC产品的分离工艺的模拟研究报道。重点介绍了酯交换法反应精馏工艺和分离工艺的模拟结果,尿素醇解法催化精馏工艺的非平衡级模拟的结果。在DMC产物的变压精馏、萃取精馏和共沸精馏的主要分离工艺中,变压精馏和萃取精馏是分离甲醇-DMC共沸物效率较高的两种工艺。
The recent progresses in the simulation of the process and the product separation for synthesis of dimethyl carbonate（DMC）without onphosgene were reviewed.Many literatures focused on the simulation of DMC synthesis by transesterification method with reactive distillation.The catalytic distillation and the product separation for DMC synthesis from urea and methanol were introduced.The three processes for the product separation,namely pressure-swing distillation,extractive distillation and azeotropic distillation,were analyzed,in which the pressure-swing distillation process and the extractive distillation process were more effective for separation of methanol-DMC azeotrope.
出处
《石油化工》
CAS
CSCD
北大核心
2012年第2期224-229,共6页
Petrochemical Technology
基金
中国科学院战略性先导科技专项"应对气候变化的碳收支认证及相关问题-油课题-石油化学品"(XDA05010204)
关键词
碳酸二甲酯
甲醇氧化羰基化法
酯交换法
尿素醇解法
共沸物分离
催化精馏
dimethyl carbonate
oxidative carbonylation of methanol
transesterification
ureaalcoholysis method
azeotrope separation
catalytic distillation
