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Title: Method of increasing the sulfation capacity of alkaline earth sorbents

Abstract

A system and method for increasing the sulfation capacity of alkaline earth carbonates to scrub sulfur dioxide produced during the fluidized bed combustion of coal in which partially sulfated alkaline earth carbonates are hydrated in a fluidized bed to crack the sulfate coating and convert the alkaline earth oxide to the hydroxide. Subsequent dehydration of the sulfate-hydroxide to a sulfate-oxide particle produces particles having larger pore size, increased porosity, decreased grain size and additional sulfation capacity. A continuous process is disclosed.

Inventors:
 [1];  [2];  [3]
  1. (Chicago, IL)
  2. (Shorewood, IL)
  3. (Clarendon Hills, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
864110
Patent Number(s):
4312280
Assignee:
United States of America as represented by United States (Washington, DC) ANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; increasing; sulfation; capacity; alkaline; earth; sorbents; carbonates; scrub; sulfur; dioxide; produced; fluidized; bed; combustion; coal; partially; sulfated; hydrated; crack; sulfate; coating; convert; oxide; hydroxide; subsequent; dehydration; sulfate-hydroxide; sulfate-oxide; particle; produces; particles; larger; pore; size; increased; porosity; decreased; grain; additional; continuous; process; disclosed; earth oxide; bed combustion; fluidized bed; alkaline earth; pore size; sulfur dioxide; grain size; continuous process; sulfation capacity; dioxide produced; earth carbonates; increased porosity; oxide particle; oxide produced; /110/502/

Citation Formats

Shearer, John A., Turner, Clarence B., and Johnson, Irving. Method of increasing the sulfation capacity of alkaline earth sorbents. United States: N. p., 1982. Web.
Shearer, John A., Turner, Clarence B., & Johnson, Irving. Method of increasing the sulfation capacity of alkaline earth sorbents. United States.
Shearer, John A., Turner, Clarence B., and Johnson, Irving. Fri . "Method of increasing the sulfation capacity of alkaline earth sorbents". United States. https://www.osti.gov/servlets/purl/864110.
@article{osti_864110,
title = {Method of increasing the sulfation capacity of alkaline earth sorbents},
author = {Shearer, John A. and Turner, Clarence B. and Johnson, Irving},
abstractNote = {A system and method for increasing the sulfation capacity of alkaline earth carbonates to scrub sulfur dioxide produced during the fluidized bed combustion of coal in which partially sulfated alkaline earth carbonates are hydrated in a fluidized bed to crack the sulfate coating and convert the alkaline earth oxide to the hydroxide. Subsequent dehydration of the sulfate-hydroxide to a sulfate-oxide particle produces particles having larger pore size, increased porosity, decreased grain size and additional sulfation capacity. A continuous process is disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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