An experimental study of NO{sub x} recycle in the NOXSO flue gas cleanup process. Quarterly technical progress report, April 1--June 31, 1992 [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 21 pages : digital, PDF file
Additional Creators:: United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

NOₓ recycle is one part of the NOXSO process. In this process, 90% of the acid pollutants (NOₓ and SO₂) can be removed simultaneously by adsorption on the surface of a sorbent material. The sorbent is subsequently regenerated by heating and contacting the hot sorbent with a reducing gas followed by steam. The NOₓ is removed in the heating process, and the SO₂ is removed by the chemical reaction of the reducing gas and steam. The NOₓ stream produced is returned to the combustion process with combustion air, which is called the NOₓ recycle. The NOₓ is reduced in the flame to N₂, H₂O, and CO₂. The tests of NO injection with combustion have demonstrated very promising results. The test data showed quite consistent NOₓ reduction efficiencies, which is similar to the previous test results on the pulverized coal combustor at DOE-PETC. An average of about 70 % NO. destruction efficiency was achieved for the NO injection into the primary air duct independent of injected NO flow rates and exit 02 concentrations. About 58%, 50%, and 46% average destruction efficiencies were obtained for the NO injection into the secondary air duct corresponding to the exit O₂concentrations of 2%, 3%, and 4% respectively.

Report Numbers:

E 1.99:doe/pc/91337--t6
doe/pc/91337--t6

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Note:

Published through SciTech Connect.
12/31/1992.
"doe/pc/91337--t6"
"DE95017780"
NOXSO Corp., Library, PA (United States)

Funding Information:

AC22-91PC91337

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