Method for directly preparing aromatics from syngas

US10815162B2 · kind B2 · utility

Assignee

• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Youming Ni · Dalian, CN
• Wenliang Zhu · Dalian, CN
• Zhongmin Liu · 东风镇, CN
• Yong Liu · Dalian, CN
• Zhiyang Chen · Lo Wu, CN
• Hongchao Liu · 东风镇, CN
• Xiangang Ma · Dalian, CN
• Shiping Liu · Columbia, US

Key dates

• Filing date: Oct 29, 2018
• Grant date: Oct 27, 2020
• Expiry date: Oct 29, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2529/48
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for preparing aromatics from syngas, which includes a) contacting a raw material stream containing syngas with a catalyst in a reaction zone under reaction conditions sufficient to convert at least part of the raw material to obtain a reaction effluent; b) separating the reaction effluent to obtain at least a recycle stream containing gas-phase hydrocarbons having 1 to 4 carbon atoms and unconverted syngas and a liquid stream containing hydrocarbons having 5 or more carbon atoms; c) returning the recycle stream to the reaction zone; and d) separating aromatic products from the liquid stream, wherein the catalyst includes at least one of an inert carrier-confined highly dispersed metal oxide material, an acidic molecular sieve, and, optionally, graphite powder and a dispersant.