Spatially Resolved Measurements of HNCO Hydrolysis over SCR Catalysts

Autor:	Eck, Mario, Lott, Patrick, Schweigert, David, Börnhorst, Marion, Deutschmann, Olaf
Rok vydání:	2022
Předmět:	Chemistry & allied sciences General Chemical Engineering ddc:540 General Chemistry Industrial and Manufacturing Engineering
Zdroj:	Chemie Ingenieur Technik, 94 (5), 738–746
ISSN:	1522-2640 0009-286X
Popis:	In order to understand deposit formation during urea selective catalytic reduction (SCR) resulting from isocyanic acid (HNCO) formation, the present study investigates the potential of HNCO hydrolysis by spatially resolved gas phase concentration profiles along a single catalyst channel of commercial Cu-zeolite and V-based SCR catalysts. The spatially resolved profiles, obtained in a special hot gas test rig via capillary technique, provide information on reaction rates of HNCO hydrolysis, NH$_3$ adsorption and NO conversion, hereby revealing a better performance of the standard V-based catalyst regarding the HNCO hydrolysis, which is attributed to the TiO$_2$ support.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a8cb1dca6777e6b3530cc3c308a81d8 https://doi.org/10.1002/cite.202100192 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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