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Hydrolysis of isocyanic acid on SCR catalysts

Abstract

Standard SCR catalysts possess high activity for the hydrolysis of HNCO and thus explain the suitability of urea as a selective reducing agent for NO{sub x}. At high space velocities HNCO-slip can get perceptible over the entire temperature range. This can be attributed to the fact that the temperature dependence is strong for the SCR reaction, but weak for the hydrolysis reaction. (author) 3 figs., 5 refs.
Authors:
Elsener, M; Kleemann, M; Koebel, M [1] 
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Publication Date:
Aug 01, 1999
Product Type:
Technical Report
Report Number:
ETDE-CH-9901
Reference Number:
SCA: 330700; PA: CH-99:0E0043; EDB-99:092108; SN: 99002111485
Resource Relation:
Other Information: PBD: 1999; Related Information: Is Part Of Paul Scherrer Institute Scientific Report 1998. Volume V: General Energy; Daum, C.; Leuenberger, J. [eds.]; PB: 121 p.
Subject:
33 ADVANCED PROPULSION SYSTEMS; EXPERIMENTAL DATA; HYDROLYSIS; ISOCYANATES; NITROGEN OXIDES; PROGRESS REPORT; REDUCTION
OSTI ID:
685700
Research Organizations:
Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1423-7342; Other: ON: DE99754426; TRN: CH99E0043
Availability:
OSTI as DE99754426
Submitting Site:
CH
Size:
pp. 85-86
Announcement Date:
Nov 02, 1999

Citation Formats

Elsener, M, Kleemann, M, and Koebel, M. Hydrolysis of isocyanic acid on SCR catalysts. Switzerland: N. p., 1999. Web.
Elsener, M, Kleemann, M, & Koebel, M. Hydrolysis of isocyanic acid on SCR catalysts. Switzerland.
Elsener, M, Kleemann, M, and Koebel, M. 1999. "Hydrolysis of isocyanic acid on SCR catalysts." Switzerland.
@misc{etde_685700,
title = {Hydrolysis of isocyanic acid on SCR catalysts}
author = {Elsener, M, Kleemann, M, and Koebel, M}
abstractNote = {Standard SCR catalysts possess high activity for the hydrolysis of HNCO and thus explain the suitability of urea as a selective reducing agent for NO{sub x}. At high space velocities HNCO-slip can get perceptible over the entire temperature range. This can be attributed to the fact that the temperature dependence is strong for the SCR reaction, but weak for the hydrolysis reaction. (author) 3 figs., 5 refs.}
place = {Switzerland}
year = {1999}
month = {Aug}
}