Process for preparing methanol from carbon dioxide and hydrogen with quantitative carbon dioxide utilization

US12297167B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Maximilian Vicari · Schifferstadt, DE
• Susanne BRITZIUS · Mannheim, DE
• Sven REINING · Ludwigshafen am Rhein, DE
• Torsten Katz · Ludwigshafen am Rhein, DE
• Thomas Geiger · Dießen, DE
• Gerald Meyer · Ludwigshafen, DE

Key dates

• Filing date: Jan 11, 2021
• Grant date: May 13, 2025
• Expiry date: Mar 11, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/129
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing methanol from carbon dioxide and hydrogen in a methanol synthesis unit and working up the reaction mixture obtained stepwise to isolate the methanol, wherein the carbon dioxide, carbon monoxide, dimethyl ether and methane components of value from the streams separated off in the isolation of the methanol from the methanol reaction stream are combusted with an oxygenous gas, and the carbon dioxide in the resultant flue gas is separated off in a carbon dioxide recovery unit and recycled to the methanol synthesis unit.