Method for the combined production of methanol and ammonia

US10843989B2 · kind B2 · utility

Assignee

• GASCONTEC GMBH · DE

Inventors

• Ulrich Koss · Darmstadt, DE
• Dierk Mueller · Karben, DE
• Ulrich Wagner · Bernburg, DE

Key dates

• Filing date: Nov 16, 2017
• Grant date: Nov 24, 2020
• Expiry date: Nov 16, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Method and system for the combined production of methanol and of ammonia, and method for producing a fuel using methanol, wherein a carbon-containing energy carrier flow and an oxygen flow from an oxygen-producing assembly are fed to a synthesis gas reactor assembly for obtaining a synthesis gas flow with hydrogen and carbon oxides, wherein the synthesis gas flow is fed to a methanol reactor assembly for the partial conversion into methanol, and wherein, from the methanol reactor assembly, a residual gas flow is obtained from which a hydrogen-containing flow is obtained, which is at least partially fed to an ammonia reactor assembly and at least partially converted into ammonia there. In an enrichment step, the molar fraction of hydrogen in the synthesis gas flow obtained from the synthesis gas reactor assembly is increased relative to the molar fraction of carbon oxides prior to the feeding to the methanol reactor assembly.