skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Decontamination of combustion gases in fluidized bed incinerators

Abstract

Sulfur-containing atmospheric pollutants are effectively removed from exit gas streams produced in a fluidized bed combustion system by providing a fluidized bed of particulate material, i.e. limestone and/or dolomite wherein a concentration gradient is maintained in the vertical direction. Countercurrent contacting between upwardly directed sulfur containing combustion gases and descending sorbent particulate material creates a concentration gradient across the vertical extent of the bed characterized in progressively decreasing concentration of sulfur, sulfur dioxide and like contaminants upwardly and decreasing concentration of e.g. calcium oxide, downwardly. In this manner, gases having progressively decreasing sulfur contents contact correspondingly atmospheres having progressively increasing concentrations of calcium oxide thus assuring optimum sulfur removal.

Inventors:
 [1]
  1. (Mamaroneck, NY)
Issue Date:
Research Org.:
Curtiss-Wright Corp
OSTI Identifier:
864317
Patent Number(s):
4346064
Assignee:
Dorr-Oliver Incorporated (Stamford, CT) OSTI
DOE Contract Number:  
EX-76-C-01-1726
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
decontamination; combustion; gases; fluidized; bed; incinerators; sulfur-containing; atmospheric; pollutants; effectively; removed; exit; gas; streams; produced; providing; particulate; material; limestone; dolomite; concentration; gradient; maintained; vertical; direction; countercurrent; contacting; upwardly; directed; sulfur; containing; descending; sorbent; creates; extent; characterized; progressively; decreasing; dioxide; contaminants; calcium; oxide; downwardly; manner; contents; contact; correspondingly; atmospheres; increasing; concentrations; assuring; optimum; removal; progressively increasing; vertical direction; sulfur containing; bed combustion; sulfur content; calcium oxide; particulate material; fluidized bed; gas stream; gas streams; sulfur dioxide; combustion gases; combustion gas; sulfur removal; streams produced; upwardly directed; effectively removed; concentration gradient; exit gas; effectively remove; /423/110/

Citation Formats

Leon, Albert M. Decontamination of combustion gases in fluidized bed incinerators. United States: N. p., 1982. Web.
Leon, Albert M. Decontamination of combustion gases in fluidized bed incinerators. United States.
Leon, Albert M. Fri . "Decontamination of combustion gases in fluidized bed incinerators". United States. https://www.osti.gov/servlets/purl/864317.
@article{osti_864317,
title = {Decontamination of combustion gases in fluidized bed incinerators},
author = {Leon, Albert M.},
abstractNote = {Sulfur-containing atmospheric pollutants are effectively removed from exit gas streams produced in a fluidized bed combustion system by providing a fluidized bed of particulate material, i.e. limestone and/or dolomite wherein a concentration gradient is maintained in the vertical direction. Countercurrent contacting between upwardly directed sulfur containing combustion gases and descending sorbent particulate material creates a concentration gradient across the vertical extent of the bed characterized in progressively decreasing concentration of sulfur, sulfur dioxide and like contaminants upwardly and decreasing concentration of e.g. calcium oxide, downwardly. In this manner, gases having progressively decreasing sulfur contents contact correspondingly atmospheres having progressively increasing concentrations of calcium oxide thus assuring optimum sulfur removal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

Save / Share: