Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003291352> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W2003291352 endingPage "433" @default.
- W2003291352 startingPage "415" @default.
- W2003291352 abstract "The catalytic properties of PtHY, PtHZSM5 and PtH mordenite catalysts are controlled by the number of their acid sites (nA, number of acid sites on which the adsorption heat of NH3 is greater than 100 kJ mol−1) and their hydrogenating sites (nPt). The activity of PtHY catalysts changes with nPt/nA as can be expected from the classical bifunctional mechanism : it increases with nPt/nA for the low values of this ratio, then reaches a plateau for nPt/nA ⩾ 0.03. For low values of nPt/nA, monobranched, multibranched isomers and cracking products are formed simultaneously but, for nPt/nA ⩾ 0.17, n-heptane transforms successively into the three families of products. With PtHZSM5 catalysts, the same trend can be observed concerning the changes of the activity as a function of nPt/nA. However the changes in the reaction scheme as a function of nPt/nA are different : cracking remains the main reaction even at high values of nPt/nA ; multibranched isomers are found in very low concentration. This can be attributed to a slower migration of the olefinic intermediates. Moreover, particular selectivities are found which are explained by a good matching between some intermediates and the space available near the acid sites. With PtH mordenite, the activity changes differently with nPt/nA. In particular, it decreases for nPt/nA > 0.015. This can be attributed to a partial pore blockage by platinum or by coke, leaving only a small part of the catalyst active. This is confirmed by the fact that the selectivities are the same as those of a PtHY zeolite with a nPt/nA ratio 10–20 times lower." @default.
- W2003291352 created "2016-06-24" @default.
- W2003291352 creator A5004656323 @default.
- W2003291352 creator A5020630514 @default.
- W2003291352 creator A5062382078 @default.
- W2003291352 creator A5075459491 @default.
- W2003291352 date "1987-08-01" @default.
- W2003291352 modified "2023-10-16" @default.
- W2003291352 title "Hydroisomerization and hydrocracking of n-heptane on Pth zeolites. Effect of the porosity and of the distribution of metallic and acid sites." @default.
- W2003291352 cites W1970505376 @default.
- W2003291352 cites W2032454836 @default.
- W2003291352 cites W2034172753 @default.
- W2003291352 cites W2044302132 @default.
- W2003291352 cites W2056137992 @default.
- W2003291352 cites W2056882827 @default.
- W2003291352 cites W2061891103 @default.
- W2003291352 cites W2067274343 @default.
- W2003291352 cites W2072230926 @default.
- W2003291352 cites W2081438298 @default.
- W2003291352 doi "https://doi.org/10.1016/0920-5861(87)80007-x" @default.
- W2003291352 hasPublicationYear "1987" @default.
- W2003291352 type Work @default.
- W2003291352 sameAs 2003291352 @default.
- W2003291352 citedByCount "198" @default.
- W2003291352 countsByYear W20032913522012 @default.
- W2003291352 countsByYear W20032913522013 @default.
- W2003291352 countsByYear W20032913522014 @default.
- W2003291352 countsByYear W20032913522015 @default.
- W2003291352 countsByYear W20032913522016 @default.
- W2003291352 countsByYear W20032913522017 @default.
- W2003291352 countsByYear W20032913522018 @default.
- W2003291352 countsByYear W20032913522019 @default.
- W2003291352 countsByYear W20032913522020 @default.
- W2003291352 countsByYear W20032913522021 @default.
- W2003291352 countsByYear W20032913522022 @default.
- W2003291352 countsByYear W20032913522023 @default.
- W2003291352 crossrefType "journal-article" @default.
- W2003291352 hasAuthorship W2003291352A5004656323 @default.
- W2003291352 hasAuthorship W2003291352A5020630514 @default.
- W2003291352 hasAuthorship W2003291352A5062382078 @default.
- W2003291352 hasAuthorship W2003291352A5075459491 @default.
- W2003291352 hasConcept C126661725 @default.
- W2003291352 hasConcept C150394285 @default.
- W2003291352 hasConcept C161790260 @default.
- W2003291352 hasConcept C178790620 @default.
- W2003291352 hasConcept C179104552 @default.
- W2003291352 hasConcept C185592680 @default.
- W2003291352 hasConcept C2777854178 @default.
- W2003291352 hasConcept C2777924179 @default.
- W2003291352 hasConcept C2778077586 @default.
- W2003291352 hasConcept C2779412933 @default.
- W2003291352 hasConcept C2780385392 @default.
- W2003291352 hasConcept C2780443040 @default.
- W2003291352 hasConcept C518104683 @default.
- W2003291352 hasConceptScore W2003291352C126661725 @default.
- W2003291352 hasConceptScore W2003291352C150394285 @default.
- W2003291352 hasConceptScore W2003291352C161790260 @default.
- W2003291352 hasConceptScore W2003291352C178790620 @default.
- W2003291352 hasConceptScore W2003291352C179104552 @default.
- W2003291352 hasConceptScore W2003291352C185592680 @default.
- W2003291352 hasConceptScore W2003291352C2777854178 @default.
- W2003291352 hasConceptScore W2003291352C2777924179 @default.
- W2003291352 hasConceptScore W2003291352C2778077586 @default.
- W2003291352 hasConceptScore W2003291352C2779412933 @default.
- W2003291352 hasConceptScore W2003291352C2780385392 @default.
- W2003291352 hasConceptScore W2003291352C2780443040 @default.
- W2003291352 hasConceptScore W2003291352C518104683 @default.
- W2003291352 hasIssue "4" @default.
- W2003291352 hasLocation W20032913521 @default.
- W2003291352 hasOpenAccess W2003291352 @default.
- W2003291352 hasPrimaryLocation W20032913521 @default.
- W2003291352 hasRelatedWork W1979861207 @default.
- W2003291352 hasRelatedWork W1989820648 @default.
- W2003291352 hasRelatedWork W2024924727 @default.
- W2003291352 hasRelatedWork W2075629493 @default.
- W2003291352 hasRelatedWork W2337080941 @default.
- W2003291352 hasRelatedWork W2381736599 @default.
- W2003291352 hasRelatedWork W3156437978 @default.
- W2003291352 hasRelatedWork W4311811259 @default.
- W2003291352 hasRelatedWork W4313400078 @default.
- W2003291352 hasRelatedWork W2499167347 @default.
- W2003291352 hasVolume "1" @default.
- W2003291352 isParatext "false" @default.
- W2003291352 isRetracted "false" @default.
- W2003291352 magId "2003291352" @default.
- W2003291352 workType "article" @default.