Method of reducing sulfur and nitrogen oxides released during combustion of fossil fuels is described. Fuel is burned in fluidized bed of solids with simultaneous feeding of crushed or pulverized limestone to control emission. Process also offers high heat transfer rates and efficient contacting for gas-solid reactions

Jonke, A. A.

English

NASA Technical Reports Server

December 1972
	 B72-10431 
f9
 
AEC-NASA TECH BRIEF S S' 
AEC-NASA Tech Briefs announce new technology derived from the research and development program of the U.S. AEC 
or from AEC-NASA interagency efforts. They are issued to encourage commercial application. Tech Briefs are available 
on a subscription basis from the National Technical Information Service, Springfield, Virginia 22151. Requests for 
individual copies or questions relating to the Tech Brief program may be directed to the Technology Utilization Office, 
NASA, Code KT, Washington, D.C. 20546. 
Fluidized-Bed Combustion Reduces Atmospheric Pollutants 
Fluidized-bed combustion is a promising method 
of reducing the quantity of atmospheric pollutants 
(oxides of sulfur and nitrogen) released during the com-
bustion of fossil fuels. Fuel is burned in a fluidized bed 
of solids with simultaneous feeding of crushed or pul-
verized limestone to control sulfur dioxide emission. In 
addition, the process offers high heat transfer rates, effi-
cient contacting for gas-solids reactions, and lower ni-
trogen oxide emission since combustion is carried out at 
lower temperatures than conventional methods. 
This review is especially important in view of more 
stringent criteria in the proposed air pollution standards. 
By mid-1975, emission control techniques must be 
adopted to keep sulfur oxide concentrations below 
0.14 ppm on any one day, and below 0.03 ppm on a 
yearly average. Standards for nitrogen oxide have been 
set at 0.05 ppm, annual arithmetic average. 
This review should be of interest to companies 
doing research in the area of fluidized-bed combustion, 
companies engaged in the manufacture of sulfuric and 
nitric acids and air pollution control agencies. 
Notes: 
I. The following documentation may be obtained from: 
National Technical Information Service 
Springfield, Virginia 2215L 
Single document price: $3.00 
(or microfiche $0.95)
Reference: ANL/ES-CEN-1002, Reduction 
of Atmospheric Pollution by the Application 
of Fluidized-Bed Combustion 
2. Technical questions may be directed to:

Mr. Glenn K. Ellis 
Technology Utilization Officer 
Office of Information Services 
U.S. Atomic Energy Commission 
Washington, D.C. 20545 
Reference: TSP72-1 0431 
Patent status: 
Inquiries concerning rights for commerical use of 
this information may be made to: 
Mr. George H. Lee, Chief 
Chicago Patent Group 
U.S. Atomic Energy Commission 
Chicago Operations Office 
9800 South Cass Avenue 
Argonne, Illinois 60439 
Source: A.A. Jonke, et al.

Argonne National Laboratory

under contract to
Atomic Energy Commission

(AEC-10085) 
Category 04 
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\lministration. Neither the United States Government nor any per- method, or process disclosed in this document may not infringe pri-
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Fluidized-bed combustion reduces atmospheric pollutants

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