Method and system for reducing NO.sub.x and fuel emissions in a

Combustion – Process of combustion or burner operation – Burning waste gas – e.g. – furnace gas – etc.

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

431 10, 110345, 432 30, 432161, 1651346, F23D 1400

Patent

active

057590222

ABSTRACT:
In a method of this invention, a first oxidant flow including oxygen and/or air, is injected into an exhaust gas flow from a primary burn zone in a furnace combustion chamber. The first oxidant flow is injected into the exhaust gas flow in a secondary burn zone downstream from the primary burn zone, but inside of the furnace chamber so that heat released from combustion of the first oxidant flow can be used for the purpose to which the furnace is applied. Also, the injection of the first oxidant flow into the secondary burn zone combusts fuel pollutants that might otherwise be released from the furnace into the atmosphere. The method can also include mixing a gaseous hydrocarbon fuel flow with the exhaust gas flow from the secondary burn zone to reduce the NO.sub.x, level in the exhaust gas. Also, the method can include mixing a second oxidant flow including air and/or oxygen, with the exhaust gas, preferably after reducing the NO.sub.x. If the furnace is a regenerative type, the air flow can be mixed with the exhaust gas flow in proximity to the entrance of a regenerator to heat the regenerator. The invention also includes a related system.

REFERENCES:
patent: 4347072 (1982-08-01), Nagaoka et al.
patent: 4372770 (1983-02-01), Krumwiede et al.
patent: 4599100 (1986-07-01), Demarest, Jr.
patent: 4739713 (1988-04-01), Vier et al.
patent: 4951579 (1990-08-01), Bell
patent: 5131335 (1992-07-01), Spliethoff et al.
patent: 5139755 (1992-08-01), Seeker et al.
patent: 5203859 (1993-04-01), Khinkis et al.
patent: 5238396 (1993-08-01), Yap
patent: 5569312 (1996-10-01), Quirk et al.
Pulse Combustion:Impinging Jet Heat Transfer Enhancement Combust. Sci. and Tech., 1993, pp. 147-165.
Measurement of the Optical Properties of Coal-Derived and Propane-Derived Soot in a Flat Flame Reactor; J. Rigby and B. Webb, Mech. Eng. Dept., Brigham Young Univ. and T. Fletcher, Chem. Eng. Dept., Brigham Y. U.
Heat Transfer Optimization in TV Glass Furnaces;pp. 141-151; W. J. Horan, Techneglas, Inc. and A.G. Slavejkov and L.L. Chang, Air Products and Chemicals, Inc.
Flue Gas Heat Recover in Glass Furnaces, Reprinted From Glass, Nov. 1983, P. Bony.
Thermal Performance of Cruciform Regenerator Packings, Reprinted From Glass, Mar., 1990, A. Zanoli, E.R. Begley, R. Videl and D. Lagarenne.
The Influence of the Thermal Properties of Refractories and Their Mode of Utilisation on the Heat Balance in Regenerators, Glass Technology, vol. 21, No. 4, Aug., 1980, J. Delrieux.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and system for reducing NO.sub.x and fuel emissions in a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for reducing NO.sub.x and fuel emissions in a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for reducing NO.sub.x and fuel emissions in a will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1453045

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.