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:
-
- Mamaroneck, NY
- Issue Date:
- Research Org.:
- Curtiss-Wright Corp
- OSTI Identifier:
- 864317
- Patent Number(s):
- 4346064
- Assignee:
- Dorr-Oliver Incorporated (Stamford, CT)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- 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 = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}