Process for combined production of methanol and ammonia

US11420867B2 · kind B2 · utility

Assignees

• GASCONTEC GMBH · DE
• THYSSENKRUPP INDUSTRIAL SOLUTIONS AG · DE

Inventors

• Alexander Schulz · Rietberg, DE
• Johannes Volkl · Erlangen, DE
• Sina Kunz · Frankfurt, DE
• Dierk Müller · Karben, DE
• Ulrich Koss · Darmstadt, DE

Key dates

• Filing date: Oct 8, 2018
• Grant date: Aug 23, 2022
• Expiry date: Oct 8, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/129
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the combined production of methanol and ammonia, wherein a reactant stream includes carbon monoxide is supplied to a recovery assembly to obtain first and second hydrogen-containing streams, each having an increased molar proportion of hydrogen compared to the reactant stream. The recovery assembly includes a shift conversion in which the carbon monoxide of at least one carbon monoxide-containing stream is at least partially converted into hydrogen and carbon dioxide by reaction with steam to obtain a converted stream having hydrogen and carbon dioxide at least partially recycled to a hydrogen recovery from which the first and second hydrogen-containing streams are obtained. A nitrogen stream and, at least partially, the first hydrogen-containing stream are supplied to an ammonia reactor assembly for at least partial conversion into ammonia and, at least partially, the second hydrogen-containing stream is supplied to a methanol reactor assembly for at least partial conversion into the methanol.