摘要
对近年来国内外芳烃分离技术研究进行了综述,分析了各芳烃分离技术的原理、特点和发展现状,探讨了吸附分离、加氢精制和芳烃抽提未来的研究重点和发展方向。鉴于目前工业上脱芳工艺的不足,介绍了作者开发的一种新型芳烃抽提溶剂,具有操作条件温和、脱芳效果好和原料适用范围宽等优点,采用N2气提回收芳烃,节能效果明显。芳烃分离组合工艺因其原料适应性强和操作灵活,成为芳烃分离领域的一项潜在技术。
Research advances in separation technologies of aromatics were reviewed. The principles, characteristics and development of aromatics removal technologies were analyzed, such as adsorption, hydrogenation, extraction and complexation extraction. Future research focus and developing direction of each aromatics - separation technology were dis- cussed. Considering the disadvantage of existing industrial aromatics - separation processes, a new complex solvent used for aromatics extraction was introduced. The complex solvent had many advantages such as wild operating condition, high efficiency for removing aromatics, and wide range of application for feed. Using nitrogen as stripping gas in process of aro- matics recovery can save energy obviously. Combination process would be a potential technology in the field of aromatics separation, for its good adaptation to feedstock and operational flexibility.
出处
《广州化工》
CAS
2013年第5期55-57,共3页
GuangZhou Chemical Industry
关键词
石脑油
脱芳
吸附
加氢
芳烃抽提
组合工艺
naphtha
aromatics removal
adsorption
hydrogenation
aromatics extraction
combined process
