甲醇制芳烃技术的发展现状  

Progress in methanol to aromatics technologies

作　　者：赖先熔[1] 黎园[1] 陈仕萍[1] 龚国辉[1] 

机构地区：[1]中国石化集团四川维尼纶厂研究院,重庆401220

出　　处：《石化技术与应用》2014年第1期80-85,共6页Petrochemical Technology & Application

摘　　要：甲醇制芳烃技术(MTA)以ZSM-5分子筛为催化剂,通过负载改性元素和增大晶体粒度来提高催化剂对芳烃的选择性和水热稳定性,积炭是催化剂失活的主要原因。MTA反应机理的核心是C—C键的形成机理,比较被认可的有氧鎓离子机理和烃池机理。国内外MTA技术多处于实验室研究阶段,清华大学和中国科学院山西煤化所开发的MTA技术已成功进行工业试验。Zeolite ZSM -5 was widely used as catalyst in methanol to aromatics （MTA） processes, the aromatics selectivity and hydrothermal stability of the catalyst were improved by loading modification elements and/or increasing crystal size, and carbon deposit was the key influence factor to reactivate cat- alyst. The formation of C--C bond, as the core of MTA reaction, was explained via carbon pool and ox- onium ion mechanisms which had been approved by researchers. Most of MTA processes at home and a- broad are still in the laboratory scale. However, the MTA technologies respectively developed by Qing- hua University and Institute of Coal Chemistry of Chinese Academy of Sciences had been successfully applied in pilot plants.

关 键 词：甲醇 芳烃 芳构化催化剂 甲醇制芳烃 

分 类 号：TQ241.1[化学工程—有机化工]