Method and apparatus for producing carbon dioxide and hydrogen

US10012434B2 · kind B2 · utility

Assignee

• L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude · FR

Inventors

• Nicolas Chambron · Saint-Maur-des-Fossés, FR
• Richard Dubettier-Grenier · Chennevières-sur-Marne, FR
• Sylvain Gerard · Saint-Cloud, FR

Key dates

• Filing date: Feb 11, 2014
• Grant date: Jul 3, 2018
• Expiry date: May 7, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2203/0485
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a process for the production of carbon dioxide and hydrogen from a gas flow comprising at least hydrogen, at least one sulfur-comprising component and carbon dioxide originating from a Claus unit fed with a gas comprising at least 50 mol % of oxygen, the gas flow is compressed and dried in order to produce a compressed and dried gas flow and the compressed and dried gas flow is separated at a subambient temperature in order to produce at least a fluid enriched in carbon dioxide with respect to the compressed and dried gas flow and at least a fluid enriched in hydrogen with respect to the compressed and dried gas flow.