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Title: 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:
 [1];  [2]
  1. Laguna Niguel, CA
  2. Huntington Beach, CA
Issue Date:
Research Org.:
Fossil Energy Research Corp. (FERCO) (Laguna Hills, CA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1013618
Patent Number(s):
7,635,593
Application Number:
US Patent Application 11/112,667
Assignee:
Fossil Energy Research Corp. (FERCO) (Laguna Hills, CA)
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 = {2009},
month = {12}
}

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