公开(公告)号：US20240166958A1

公开(公告)日：2024-05-23

申请号：US18551480

申请日：2022-05-19

申请人： Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.

发明人： Hongyu Liu ,  Zhen Qian ,  Zhifei Li ,  Xiaolong Zhang ,  Juncheng Li ,  Qiang Xue ,  Xu Wang ,  Hui Zhang ,  Huai Guan ,  Yanyang Deng ,  Xiang Liu ,  Jiale Zuo

IPC分类号： C10G53/12 ,  B01D11/04

CPC分类号： C10G53/12 ,  B01D11/0419 ,  B01D11/0446 ,  B01D11/0449 ,  B01D11/0492 ,  C10G2300/1022 ,  C10G2300/202

摘要： The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts. The Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.