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Title: Metal sulfide initiators for metal oxide sorbent regeneration

Abstract

A process of regenerating a sulfided sorbent is provided. According to the process of the invention, a substantial portion of the energy necessary to initiate the regeneration reaction is provided by the combustion of a particulate metal sulfide additive. In using the particulate metal sulfide additive, the oxygen-containing gas used to regenerate the sulfided sorbent can be fed to the regeneration zone without heating or at a lower temperature than used in conventional processes wherein the regeneration reaction is initiated only by heating the oxygen-containing. The particulate metal sulfide additive is preferably an inexpensive mineral ore such as iron pyrite which does not adversely affect the regeneration or corresponding desulfurization reactions. The invention further includes a sorbent composition comprising the particulate metal sulfide additive in admixture with an active metal oxide sorbent capable of removing one or more sulfur compounds from a sulfur-containing gas stream.

Inventors:
 [1];  [1]
  1. (Durham, NC)
Issue Date:
Research Org.:
RESEARCH TRIANGLE INSTITUTE
OSTI Identifier:
872342
Patent Number(s):
5914288
Assignee:
Research Triangle Institute (Research Triangle Park, NC) NETL
DOE Contract Number:  
AC21-88MC25006
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
metal; sulfide; initiators; oxide; sorbent; regeneration; process; regenerating; sulfided; provided; according; substantial; portion; energy; initiate; reaction; combustion; particulate; additive; oxygen-containing; gas; regenerate; fed; zone; heating; temperature; conventional; processes; initiated; preferably; inexpensive; mineral; iron; pyrite; adversely; affect; corresponding; desulfurization; reactions; composition; comprising; admixture; active; capable; removing; sulfur; compounds; sulfur-containing; stream; oxide sorbent; substantial portion; active metal; metal sulfide; oxygen-containing gas; composition comprising; metal oxide; gas stream; containing gas; sulfur compounds; adversely affect; sorbent capable; regeneration reaction; sulfided sorbent; sulfur-containing gas; sorbent regeneration; sulfide additive; conventional processes; regeneration zone; conventional process; generation reaction; sulfur compound; /502/

Citation Formats

Turk, Brian S., and Gupta, Raghubir P. Metal sulfide initiators for metal oxide sorbent regeneration. United States: N. p., 1999. Web.
Turk, Brian S., & Gupta, Raghubir P. Metal sulfide initiators for metal oxide sorbent regeneration. United States.
Turk, Brian S., and Gupta, Raghubir P. Fri . "Metal sulfide initiators for metal oxide sorbent regeneration". United States. https://www.osti.gov/servlets/purl/872342.
@article{osti_872342,
title = {Metal sulfide initiators for metal oxide sorbent regeneration},
author = {Turk, Brian S. and Gupta, Raghubir P.},
abstractNote = {A process of regenerating a sulfided sorbent is provided. According to the process of the invention, a substantial portion of the energy necessary to initiate the regeneration reaction is provided by the combustion of a particulate metal sulfide additive. In using the particulate metal sulfide additive, the oxygen-containing gas used to regenerate the sulfided sorbent can be fed to the regeneration zone without heating or at a lower temperature than used in conventional processes wherein the regeneration reaction is initiated only by heating the oxygen-containing. The particulate metal sulfide additive is preferably an inexpensive mineral ore such as iron pyrite which does not adversely affect the regeneration or corresponding desulfurization reactions. The invention further includes a sorbent composition comprising the particulate metal sulfide additive in admixture with an active metal oxide sorbent capable of removing one or more sulfur compounds from a sulfur-containing gas stream.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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