Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1994-07-15
1996-08-06
McMahon, Timothy M.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
110343, 422168, B01D 5356
Patent
active
055431160
ABSTRACT:
A method and apparatus for controlling NO.sub.x produced by a natural gas fired combustion source includes establishing a control curve for the combustion source for indicating NO.sub.x levels based on steam injection rates and fuel flow rates provided to the burners. The atomizing steam injection flow rate provided to the burner is measured as well as the fuel flow rate. A NO.sub.x level is determined for the combustion source based on the atomizing steam injection flow rate, the firing rate, and the fuel flow rate. NO.sub.x levels are lowered by adding atomized steam to the burners according to the pre-programmed control curve.
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patent: 5308239 (1994-05-01), Bazarian et al.
Bailey Product Catalog E 92. 530-1, 1993.
B&W Field Service Engineering Report, Jan. 7, 1994.
Colannino, Joseph, "Low-Cost Techniques, Reduce Boiler NO.sub.x ", Chemical Engineering, Feb. 1993, pp. 100-106.
Bernstein Gary S.
Milo Thomas K.
Edwards Robert J.
Kalka Daniel S.
McMahon Timothy M.
The Babcock & Wilcox Company
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