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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:
; ;
Issue Date:
OSTI Identifier:
7014801
Assignee:
Dept. of Energy TIC; ERA-06-007716; EDB-81-016516
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; COAL; FLUIDIZED-BED COMBUSTION; FLUE GAS; DESULFURIZATION; FOSSIL-FUEL POWER PLANTS; LIMESTONE; SORPTIVE PROPERTIES; SULFUR DIOXIDE; AIR POLLUTION CONTROL; SCRUBBERS; CARBONACEOUS MATERIALS; CARBONATE ROCKS; CHALCOGENIDES; CHEMICAL REACTIONS; COMBUSTION; ENERGY SOURCES; EQUIPMENT; FOSSIL FUELS; FUELS; GASEOUS WASTES; MATERIALS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; POLLUTION CONTROL; POLLUTION CONTROL EQUIPMENT; POWER PLANTS; ROCKS; SEDIMENTARY ROCKS; SULFUR COMPOUNDS; SULFUR OXIDES; SURFACE PROPERTIES; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; WASTES; 200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions

Citation Formats

Shearer, J.A., Turner, C.B., and Johnson, I. Method of increasing the sulfation capacity of alkaline earth sorbents. United States: N. p., 1980. Web.
Shearer, J.A., Turner, C.B., & Johnson, I. Method of increasing the sulfation capacity of alkaline earth sorbents. United States.
Shearer, J.A., Turner, C.B., and Johnson, I. Thu . "Method of increasing the sulfation capacity of alkaline earth sorbents". United States.
@article{osti_7014801,
title = {Method of increasing the sulfation capacity of alkaline earth sorbents},
author = {Shearer, J.A. and Turner, C.B. and Johnson, I.},
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 = {1980},
month = {3}
}