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:
-
- Durham, NC
- Issue Date:
- Research Org.:
- RTI International, Research Triangle Park, NC (United States)
- OSTI Identifier:
- 874074
- Patent Number(s):
- 6306793
- Assignee:
- Research Triangle Institute (Research Triangle Park, NC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- 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}
}