Catalyst outage protection system

Details Catalyst outage protection system Catalyst outage protection system

1995-01-20

1997-04-08

Bhat, Nina

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422211, 4232391, 110264, 110347, B01J 800, C01B 2102

Patent

active

056184999

ABSTRACT:
An outage protection system for a SCR (selective catalytic reduction) reactor utilizes a pair of dampers to isolate the catalyst bed and the ammonia injection grid of the SCR reactor and to provide a blower driven closed loop flow of externally heated air from the injector grid across the catalyst bed to an external heater and back to the injection grid.

REFERENCES:
patent: 4713152 (1987-12-01), Walsh
patent: 5045516 (1991-09-01), Vogel et al.
patent: 5380499 (1995-01-01), MacInnis
patent: 5423272 (1995-06-01), Dunn, Jr. et al.
patent: 5437851 (1995-08-01), MacInnis

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