Process for the simultaneous sorption of water and organic compounds

US5746788A · kind A · utility

Assignee

• Engelhard Process Chemicals GmbH · DE

Inventors

• Torsten Schmidt · Chemnitz, DE
• Michael Hoffmeister · Laatzen, DE

Key dates

• Filing date: Apr 24, 1996
• Grant date: May 5, 1998
• Expiry date: Apr 24, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2259/402
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Described is a process for the simultaneous sorption of water and organic compounds from gases selected from the group comprising natural gas and process gases (e.g. waste gases of maleic acid or terephthalic acid (anhydride) production or phthalic acid anhydride production or of steam reforming). The gas to be treated is contacted with a sorbent comprising particulate activated carbon in an oxidic carrier on a basis of silicon dioxide, aluminum oxide, aluminum phosphate or aluminosilicate. When natural gas is treated, water and C5+ hydrocarbons, for example, can be separated simultaneously. In steam reforming, with appropriate process management, C2+ hydrocarbons, CO.sub.2 and water can be absorbed simultaneously.