石油学报(石油加工) ›› 2019, Vol. 35 ›› Issue (5): 855-859.doi: 10.3969/j.issn.1001-8719.2019.05.005

• 研究报告 • 上一篇    下一篇

分子筛用于丙炔/丙烯的高效分离

贺朝辉1,2, 杨玲1,2, 李晋平1,2, 李立博1,2,3#br#   

  1. 1太原理工大学 化学化工学院,山西 太原 030024;2气体能源高效清洁利用山西省重点实验室,山西 太原 030024;
    3太原理工大学 煤科学与技术重点实验室,山西 太原 030024
  • 收稿日期:2019-04-15 修回日期:2019-05-13 出版日期:2019-09-25 发布日期:2020-04-01
  • 通讯作者: 李立博,男,教授,博士,从事新型多孔材料制备、功能化以及用于能源气体的分离研究,E-mail:lilibo908@hotmail.com E-mail:lilibo908@hotmail.com
  • 作者简介:贺朝辉,男,博士研究生,从事用于气体分离多孔材料的研究,E-mail:hechaohui0591@link.tyut.edu.cn
  • 基金资助:
    国家自然科学基金项目(21606163,21878205)资助

Molecular Sieves for Efficient Separation of Propyne/Propylene

HE Chaohui1,2, YANG Ling1,2, LI Jinping1,2, LI Libo1,2,3#br#   

  1. 1College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
    2Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, China;
    3Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2019-04-15 Revised:2019-05-13 Online:2019-09-25 Published:2020-04-01

摘要: 为解决传统的丙炔/丙烯分离能耗高,制约丙烯生产效率的问题,探讨了几种孔径尺寸接近的5A分子筛、4A分子筛和Silicalite1分子筛对丙炔/丙烯的分离性能,通过吸附分离的方式,实现了高效的丙炔/丙烯分离。详细考察了5A分子筛、4A分子筛和Silicalite1分子筛〖JP2〗在273 K和298 K下对丙炔/丙烯的单组分吸附性能,并进行了选择性计算。对5A分子筛、4A分子筛和Silicalite1分子筛进行了模拟固定床的丙炔/丙烯(V〖DK〗(C3H4)∶V(C3H6)〖JP〗=1∶99)混合气穿透实验。结果表明,5A分子筛具有最优的分离效果。实现了基于分子筛对丙炔/丙烯的高效分离,为分子筛在低碳烃的分离应用提供了新的方向。

关键词: 分子筛, 丙烯, 丙炔, 吸附, 分离

Abstract: Traditional propylene separation process is energyconsumption, which significantly restrict the efficient propylene production. In this work, molecular sieves 5A, 4A and Silicalite1 were studied as adsorbent for the efficiency propyne/propylene separation. The single component adsorption of propylene and propyne on these materials were tested at 273 K and 298 K and selectivity were calculated. Propyne/propylene (V(C3H4)∶V(C3H6)=1∶99) mixture breakthrough experiments were measured, which shows 5A molecular sieve was the best one. This study provided the first example of molecular sieves on propyne/propylene separation, and significantly expands the applications of molecular sieves on the important light hydrocarbons separation.

Key words: molecular sieve, propylene, propyne, adsorption, separation