Method of separating α-olefin by a simulated moving bed

US11370732B2 · kind B2 · utility

Assignee

• Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd. · CN

Inventors

• Juncheng Li · 翁根苏木, CN
• Zhen Qian · 翁根苏木, CN
• Jingwei Wu · 达尔罕壕村, CN
• Xiaolong Zhang · 红钢城街道, CN
• Qinge Jian · Gaorihan, CN
• Yuan Gao · San Diego, US
• Xueting Wu · Xingsheng, CN
• Haoting Chen · Xingsheng, CN

Key dates

• Filing date: Jun 14, 2019
• Grant date: Jun 28, 2022
• Expiry date: Jun 14, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/1022
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present disclosure provides a method of separating α-olefin by a simulated moving bed. The method comprises using a coal-based Fischer-Tropsch synthetic oil as a raw material to obtain a target olefin having a carbon number N within a range from 9 to 18, wherein the raw material is subjected to treatment steps including pretreatment, fraction cutting, alkane-alkene separation, and isomer separation, thereby obtaining a high purity α-olefin product. As compared to conventional rectification and extraction processes, the product obtained by the method of the present disclosure has advantages of higher purity, higher yield, lower energy consumption, and significantly reduced production cost.