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Title: Modified dry limestone process for control of sulfur dioxide emissions

Abstract

A method and apparatus for removing sulfur oxides from flue gas comprise cooling and conditioning the hot flue gas to increase the degree of water vapor saturation prior to passage through a bed of substantially dry carbonate chips or lumps, e.g., crushed limestone. The reaction products form as a thick layer of sulfites and sulfates on the surface of the chips which is easily removed by agitation to restore the reactive surface of the chips.

Inventors:
 [1];  [1]
  1. Morgantown, WV
Issue Date:
Research Org.:
MERC
OSTI Identifier:
862624
Patent Number(s):
3976747
Application Number:
05/584,424
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
modified; dry; limestone; process; control; sulfur; dioxide; emissions; method; apparatus; removing; oxides; flue; gas; comprise; cooling; conditioning; hot; increase; degree; water; vapor; saturation; prior; passage; bed; substantially; carbonate; chips; lumps; crushed; reaction; products; form; thick; layer; sulfites; sulfates; surface; easily; removed; agitation; restore; reactive; thick layer; removing sulfur; sulfur oxide; sulfur oxides; easily removed; water vapor; sulfur dioxide; reaction product; reaction products; flue gas; active surface; reactive surface; substantially dry; dry carbon; /423/

Citation Formats

Shale, Correll C, and Cross, William G. Modified dry limestone process for control of sulfur dioxide emissions. United States: N. p., 1976. Web.
Shale, Correll C, & Cross, William G. Modified dry limestone process for control of sulfur dioxide emissions. United States.
Shale, Correll C, and Cross, William G. Tue . "Modified dry limestone process for control of sulfur dioxide emissions". United States. https://www.osti.gov/servlets/purl/862624.
@article{osti_862624,
title = {Modified dry limestone process for control of sulfur dioxide emissions},
author = {Shale, Correll C and Cross, William G},
abstractNote = {A method and apparatus for removing sulfur oxides from flue gas comprise cooling and conditioning the hot flue gas to increase the degree of water vapor saturation prior to passage through a bed of substantially dry carbonate chips or lumps, e.g., crushed limestone. The reaction products form as a thick layer of sulfites and sulfates on the surface of the chips which is easily removed by agitation to restore the reactive surface of the chips.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {8}
}

Patent:

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