Removing sulphur oxides from a fluid stream
Abstract
A process for removing sulphur oxides from a fluid stream, such as flue gas, comprising: providing a non-aqueous absorption liquid containing at least one hydrophobic amine, the liquid being incompletely miscible with water; treating the fluid stream in an absorption zone with the non-aqueous absorption liquid to transfer at least part of the sulphur oxides into the non-aqueous absorption liquid and to form a sulphur oxide-hydrophobic amine-complex; causing the non-aqueous absorption liquid to be in liquid-liquid contact with an aqueous liquid whereby at least part of the sulphur oxide-hydrophobic amine-complex is hydrolyzed to release the hydrophobic amine and sulphurous hydrolysis products, and at least part of the sulphurous hydrolysis products is transferred into the aqueous liquid; separating the aqueous liquid from the non-aqueous absorption liquid. The process mitigates absorbent degradation problems caused by sulphur dioxide and oxygen in flue gas.
- Inventors:
- Issue Date:
- Research Org.:
- Research Triangle Institute, Research Triangle Park, NC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1129174
- Patent Number(s):
- 8691171
- Application Number:
- 13/782,290
- Assignee:
- BASF SE (DE); Research Triangle Institute (Research Triangle Park, NC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- AR0000093
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Mar 01
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Katz, Torsten, Riemann, Christian, Bartling, Karsten, Rigby, Sean Taylor, Coleman, Luke James Ivor, and Lail, Marty Alan. Removing sulphur oxides from a fluid stream. United States: N. p., 2014.
Web.
Katz, Torsten, Riemann, Christian, Bartling, Karsten, Rigby, Sean Taylor, Coleman, Luke James Ivor, & Lail, Marty Alan. Removing sulphur oxides from a fluid stream. United States.
Katz, Torsten, Riemann, Christian, Bartling, Karsten, Rigby, Sean Taylor, Coleman, Luke James Ivor, and Lail, Marty Alan. Tue .
"Removing sulphur oxides from a fluid stream". United States. https://www.osti.gov/servlets/purl/1129174.
@article{osti_1129174,
title = {Removing sulphur oxides from a fluid stream},
author = {Katz, Torsten and Riemann, Christian and Bartling, Karsten and Rigby, Sean Taylor and Coleman, Luke James Ivor and Lail, Marty Alan},
abstractNote = {A process for removing sulphur oxides from a fluid stream, such as flue gas, comprising: providing a non-aqueous absorption liquid containing at least one hydrophobic amine, the liquid being incompletely miscible with water; treating the fluid stream in an absorption zone with the non-aqueous absorption liquid to transfer at least part of the sulphur oxides into the non-aqueous absorption liquid and to form a sulphur oxide-hydrophobic amine-complex; causing the non-aqueous absorption liquid to be in liquid-liquid contact with an aqueous liquid whereby at least part of the sulphur oxide-hydrophobic amine-complex is hydrolyzed to release the hydrophobic amine and sulphurous hydrolysis products, and at least part of the sulphurous hydrolysis products is transferred into the aqueous liquid; separating the aqueous liquid from the non-aqueous absorption liquid. The process mitigates absorbent degradation problems caused by sulphur dioxide and oxygen in flue gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 08 00:00:00 EDT 2014},
month = {Tue Apr 08 00:00:00 EDT 2014}
}
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