Regenerative Cu La zeolite supported desulfurizing sorbents

US5057473A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Gerald Voecks · La Cañada Flintridge, US
• Pramod K. Sharma · Seattle, US

Key dates

• Filing date: Apr 12, 1990
• Grant date: Oct 15, 1991
• Expiry date: Apr 12, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B3/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Efficient, regenerable sorbents for removal of H.sub.2 S from fluid hydrocarbons such as diesel fuel at moderate condition comprise a porous, high surface area aluminosilicate support, suitably a synthetic zeolite, and most preferably a zeolite having a free lattice opening of at least 6 Angstroms containing from 0.1 to 0.5 moles of copper ions, lanthanum ions or their mixtures. The sorbent removes sulfur from the hydrocarbon fuel in high efficiency and can be repetitively regenerated without loss of activity.