Multi-bed selective catalytic reduction system

Details Multi-bed selective catalytic reduction system Multi-bed selective catalytic reduction system

2008-06-11

2009-12-29

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S246000, C423S247000, C422S168000, C422S169000, C422S170000, C422S171000, C422S172000, C422S177000, C422S180000

Reexamination Certificate

active

07638107

ABSTRACT:
A multi-bed selective catalytic reduction system comprising a gas input duct, a first ammonia injection grid assembly located downstream from the gas input duct, a first selective catalytic reduction catalyst assembly located downstream from the first ammonia injection grid assembly, a second ammonia injection grid assembly located downstream from the first selective catalytic reduction catalyst assembly, a second selective catalytic reduction catalyst assembly located downstream from the second ammonia injection grid assembly, and an exhaust stack located downstream from the second selective catalytic reduction catalyst assembly. By passing a combustion waste stream through two sets of ammonia injection grid assemblies and selective catalytic reduction catalyst assemblies, the multi-bed selective catalytic reduction system removes more nitrogen oxide emissions from the waste stream, uses less ammonia to do so, and results in less ammonia emissions than systems with only one ammonia injection grid assembly and selective catalytic reduction catalyst assembly.

REFERENCES:
patent: 4302431 (1981-11-01), Atsukawa et al.
patent: 4981660 (1991-01-01), Leach
patent: 5024981 (1991-06-01), Speronello et al.
patent: 5057293 (1991-10-01), Epperly et al.
patent: 5296206 (1994-03-01), Cho et al.
patent: 6315969 (2001-11-01), Yoshida
patent: 7146802 (2006-12-01), Lee

Affiliated with

Also associated with

Rating

Multi-bed selective catalytic reduction system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-bed selective catalytic reduction system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-bed selective catalytic reduction system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4144409