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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 gas. 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:
874074
Patent Number(s):
6306793
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; substantial; portion; energy; initiate; reaction; combustion; particulate; additive; oxygen-containing; gas; regenerate; fed; zone; heating; temperature; conventional; processes; initiated; inexpensive; mineral; iron; pyrite; adversely; affect; desulfurization; reactions; composition; comprising; admixture; active; capable; removing; sulfur; compounds; sulfur-containing; stream; metal oxide; gas stream; adversely affect; oxide sorbent; sorbent regeneration; regeneration reaction; /502/423/

Citation Formats

Turk, Brian S., and Gupta, Raghubir P. Metal sulfide initiators for metal oxide sorbent regeneration. United States: N. p., 2001. Web.
Turk, Brian S., & Gupta, Raghubir P. Metal sulfide initiators for metal oxide sorbent regeneration. United States.
Turk, Brian S., and Gupta, Raghubir P. Mon . "Metal sulfide initiators for metal oxide sorbent regeneration". United States. https://www.osti.gov/servlets/purl/874074.
@article{osti_874074,
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 gas. 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 = {2001},
month = {1}
}

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