Flue gas desulfurization
Abstract
A process and apparatus for removing sulfur oxide from combustion gas to form Na.sub.2 SO.sub.4 and for reducing the harmful effects of Na.sub.2 SO.sub.4 on auxiliary heat exchangers in which a sodium compound is injected into the hot combustion gas forming liquid Na.sub.2 SO.sub.4 in a gas-gas reaction and the resultant gas containing Na.sub.2 SO.sub.4 is cooled to below about 1150.degree. K. to form particles of Na.sub.2 SO.sub.4 prior to contact with at least one heat exchanger with the cooling being provided by the recycling of combustion gas from a cooled zone downstream from the introduction of the cooling gas.
- Inventors:
-
- Lisle, IL
- Clarendon Hills, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 865635
- Patent Number(s):
- 4547351
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23J - REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- flue; gas; desulfurization; process; apparatus; removing; sulfur; oxide; combustion; form; na; reducing; harmful; effects; auxiliary; heat; exchangers; sodium; compound; injected; hot; forming; liquid; gas-gas; reaction; resultant; containing; cooled; below; 1150; degree; particles; prior; contact; exchanger; cooling; provided; recycling; zone; downstream; introduction; cooling gas; removing sulfur; gas desulfurization; sulfur oxide; hot combustion; gas containing; heat exchange; heat exchanger; heat exchangers; flue gas; combustion gas; auxiliary heat; gas reaction; harmful effects; sodium compound; liquid na; /423/95/96/110/422/
Citation Formats
Im, Kwan H, and Ahluwalia, Rajesh K. Flue gas desulfurization. United States: N. p., 1985.
Web.
Im, Kwan H, & Ahluwalia, Rajesh K. Flue gas desulfurization. United States.
Im, Kwan H, and Ahluwalia, Rajesh K. Tue .
"Flue gas desulfurization". United States. https://www.osti.gov/servlets/purl/865635.
@article{osti_865635,
title = {Flue gas desulfurization},
author = {Im, Kwan H and Ahluwalia, Rajesh K},
abstractNote = {A process and apparatus for removing sulfur oxide from combustion gas to form Na.sub.2 SO.sub.4 and for reducing the harmful effects of Na.sub.2 SO.sub.4 on auxiliary heat exchangers in which a sodium compound is injected into the hot combustion gas forming liquid Na.sub.2 SO.sub.4 in a gas-gas reaction and the resultant gas containing Na.sub.2 SO.sub.4 is cooled to below about 1150.degree. K. to form particles of Na.sub.2 SO.sub.4 prior to contact with at least one heat exchanger with the cooling being provided by the recycling of combustion gas from a cooled zone downstream from the introduction of the cooling gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}
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