In-line localized monitoring of catalyst activity in selective catalytic NO.sub.x reduction systems
Abstract
Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NO.sub.x-containing flue gases is monitored by one or more modules that operate on-line without disrupting the normal operation of the facility. Each module is positioned over a designated lateral area of one of the catalyst beds in the SCR unit, and supplies ammonia, urea, or other suitable reductant to the catalyst in the designated area at a rate that produces an excess of the reductant over NO.sub.x on a molar basis through the designated area. Sampling probes upstream and downstream of the designated area draw samples of the gas stream for NO.sub.x analysis, and the catalyst activity is determined from the difference in NO.sub.x levels between the two probes.
- Inventors:
-
- Laguna Niguel, CA
- Huntington Beach, CA
- Issue Date:
- Research Org.:
- Fossil Energy Research Corp. (FERCO) (Laguna Hills, CA)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1013618
- Patent Number(s):
- 7635593
- Application Number:
- US Patent Application 11/112,667
- Assignee:
- Fossil Energy Research Corp. (FERCO) (Laguna Hills, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FC26-05NT42298
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Muzio, Lawrence J, and Smith, Randall A. In-line localized monitoring of catalyst activity in selective catalytic NO.sub.x reduction systems. United States: N. p., 2009.
Web.
Muzio, Lawrence J, & Smith, Randall A. In-line localized monitoring of catalyst activity in selective catalytic NO.sub.x reduction systems. United States.
Muzio, Lawrence J, and Smith, Randall A. Tue .
"In-line localized monitoring of catalyst activity in selective catalytic NO.sub.x reduction systems". United States. https://www.osti.gov/servlets/purl/1013618.
@article{osti_1013618,
title = {In-line localized monitoring of catalyst activity in selective catalytic NO.sub.x reduction systems},
author = {Muzio, Lawrence J and Smith, Randall A},
abstractNote = {Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NO.sub.x-containing flue gases is monitored by one or more modules that operate on-line without disrupting the normal operation of the facility. Each module is positioned over a designated lateral area of one of the catalyst beds in the SCR unit, and supplies ammonia, urea, or other suitable reductant to the catalyst in the designated area at a rate that produces an excess of the reductant over NO.sub.x on a molar basis through the designated area. Sampling probes upstream and downstream of the designated area draw samples of the gas stream for NO.sub.x analysis, and the catalyst activity is determined from the difference in NO.sub.x levels between the two probes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 22 00:00:00 EST 2009},
month = {Tue Dec 22 00:00:00 EST 2009}
}