Regeneration of iron-based hydrogen sulfide sorbents

US6723230B1 · kind B1 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Jingguang Chen · Hockessin, US
• Leo D. Brown · Baton Rouge, US
• William C. Baird, Jr. · Baton Rouge, US
• Gary B. McVicker · Califon, US
• Edward S. Ellis · Berkeley Heights, US
• Michele S. Touvelle · Baton Rouge, US
• Darryl P. Klein · Ellicott City, US
• David E. W. Vaughan · Flemington, US

Key dates

• Filing date: Jul 21, 2000
• Grant date: Apr 20, 2004
• Expiry date: Jul 21, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2220/56
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process to regenerate iron-based hydrogen sulfide sorbents using steam. The steam is preferably mixed with hydrogen-containing gas and/or an inert gas, such as nitrogen. In a preferred embodiment, the sorbent is first exposed to the steam and then exposed to a hydrogen-containing gas at regeneration conditions.