Regeneration of hydrogen sulfide sorbents

The invention relates to methods for regenerating metal and metal oxide hydrogen sulfide sorbents by treating the spent sorbents with an oxidizing atmosphere following by a reducing atmosphere. The sorbents may be mono- or multi-metallic in nature. A process to regenerate metal oxide desulfurization...

Full description

Saved in:
Bibliographic Details
Main Authors Chen, Jingguang G, Brown, Leo D, Baird, Jr., William C, McVicker, Gary B, Ellis, Edward S, Touvelle, Michele S, Klein, Darryl P, Vaughan, David E. W
Format Patent
LanguageEnglish
Published 18.11.2003
Online AccessGet full text

Cover

More Information
Summary:The invention relates to methods for regenerating metal and metal oxide hydrogen sulfide sorbents by treating the spent sorbents with an oxidizing atmosphere following by a reducing atmosphere. The sorbents may be mono- or multi-metallic in nature. A process to regenerate metal oxide desulfurization sorbents using an oxidizing and reducing atmosphere. The sorbents may be mono- or multi-metallic in nature, and preferably comprise Cu, Ni and/or Co. If desired, secondary metals may be incorporated to increase regeneration efficiency and/or capacity. Other additives may be used to suppress hydrocarbon cracking. A sorbent containing Zn may be combined with an Fe, Co, Ni, Mo, or W catalyst or a noble metal catalyst and combinations thereof.