摘要
介绍了芳烃联产、甲苯歧化和甲苯-甲醇烷基化3种对二甲苯(PX)生产工艺,叙述甲苯-甲醇烷基化工艺流程,并总结各工艺的优缺点。对比结果表明,甲苯-甲醇烷基化工艺较前2种工艺具有原料廉价易得、工艺路线简单、能耗低、产品率高等特点,是一种新型环保的对二甲苯生产工艺,具有较好的发展前景。但高温的反应条件亟需研制出新型耐高温催化剂以适应生产需求。
The article mainly introduced three kinds manufacturing techniques of para-xylene from aromatic co-production, toluene disproportionation, and alkylation of toluene with methanol. And the process of alkylation of toluene with methanol was described in details, and their advantages and disadvantages were also summarized. The results of the comparison indicated that the process of alkylation of toluene with methanol had the advantages of raw materials was cheap and easy to get, route was simple, energy consumption was low and yield was high, which was a new and clean manufacturing technique for para-xylene with good prospect.However, the reaction condition required new catalyst resistant to high temperature for fit production.
出处
《化工生产与技术》
CAS
2015年第4期47-51,10,共5页
Chemical Production and Technology
基金
湖北省自然科学基金资助项目(2014CFB812)
煤转化与新型炭材料湖北省重点实验室开放基金项目(WKDM201302)
2014年武汉科技大学大学生创新基金研究项目(14ZRB038)
武汉科技大学校基金资助项目(250089)
关键词
对二甲苯
芳烃联产
甲苯歧化
甲苯-甲醇烷基化
para-xylene
aromatic co-production
toluene disproportionate
alkylation of toluene with methanol
