Passive system for optimal NOx reduction via selective...

Details Passive system for optimal NOx reduction via selective... Passive system for optimal NOx reduction via selective...

2006-04-04

2006-04-04

Lu, Jiping (Department: 3749)

Liquid heaters and vaporizers

Industrial

Waste heat

C122S00400R, C422S177000

Reexamination Certificate

active

07021248

ABSTRACT:
A passive system for recovering energy and nitrogen oxides from flue gas produced by a boiler, and which employs a particular arrangement of economizer surface to ensure that the temperature of the flue gas entering a selective catalytic reduction (SCR) reactor is maintained within a required range over a wide range of boiler loads.

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patent: 5911956 (1999-06-01), Lamare et al.
patent: 5943865 (1999-08-01), Cohen
patent: 6125634 (2000-10-01), Wittchow
Steam, Its Generation and Use, 40th Edition, The Babcock & Wilcox Company, ©1992, p. 19-0 to 19-6 and p. 34-1 to 34-9.
Nischt et al., “Recent SCR Retrofit Experience on Coal-Fired Boilers,” POWER-GEN International 1999, Nov. 30—Dec. 2, 1999, New Orleans, LA, Figure 4, p. 1-11.

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