Analytical Methods for the Characterization of Pt-Rh Catalyst

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43914904" target="_blank" >RIV/60461373:22310/17:43914904 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Analytical Methods for the Characterization of Pt-Rh Catalyst
Original language description
The Pt-Rh catalyst is in the form of standard catalyst gauze which is used for a very long time in the manufacture of nitric acid and other chemical technologies. It is characterized by a high mechanical strength at high operating temperatures, high resistance to catalyst poisons and a considerable efficiency. The content of rhodium in the catalyst system Pt-Rh ranges from 5 to 10% depending on the use of catalyst and the price of rhodium. At certain conditions, Pt-Rh catalysts used can reduce the catalytic activity and thus reduce the product yield significantly. The reasons of these unexpectedly low ields are often very complex. The contamination of Pt-Rh catalyst can be mainly caused by: 1) the purity of process gases, 2) the construction materials of reactor, and 3) the purity of catalyst gauzes. A special attention has to be paid to the presence of contaminants during the start-up period. The contamination during the start-up period causes an incompletely developed crystal structure. The contamination in this period greatly reduces the yield of the process in the campaign. The present study deals with the determination of textural and surface changes in the catalytic gauze resulting from its use.
Czech name
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Czech description
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Project
<a href="/en/project/LO1613" target="_blank" >LO1613: Future materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
PROCEEDINGS 44th International Conference of the Slovak Society of Chemical Engineering
ISBN
978-80-89597-58-1
ISSN
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e-ISSN
neuvedeno
Number of pages
9
Pages from-to
752-759
Publisher name
Slovak Society of Chemical Engineering
Place of publication
Bratislava
Event location
Demänovská dolina
Event date
May 22, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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