Matches in SemOpenAlex for { <https://semopenalex.org/work/W62396044> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W62396044 endingPage "211" @default.
- W62396044 startingPage "198" @default.
- W62396044 abstract "Amorphous silica-aluminas containing 13, 27 and 59 wt% Al2O3 were prepared by precipitating alumina onto silica gel, followed by hydrothermal treatment These materials were characterized by 27Al NMR and ESCA and evaluated in gas oil cracking. NMR revealed the presence of tetrahedral, pentacoordinated and octahedral Al species in the steamed SiO2 - Al2O3 samples with 27 and 13% Al2O3. The sample containing 59% Al2O3, however, showed the presence of only tetrahedral and octahedral Al species and a 3-fold enrichment of Al at the surface. In gas oil cracking, the activity of the catalyst per unit surface area increased with increasing Al2O3 content. NMR analysis indicated that different types of Al species (eg., tetrahedral, octahedral) played a role in gas oil cracking. The catalysts with 13 and 27% Al2O3 showed equivalent selectivity while the catalyst with 59% Al2O3 yielded higher coke, H2 , gasoline and LCO and lower C3 and C4 olefins at constant conversion. The differences in activity and selectivity can be attributed to increase in acid site density with increase in alumina content of these catalysts" @default.
- W62396044 created "2016-06-24" @default.
- W62396044 creator A5025470786 @default.
- W62396044 creator A5043192626 @default.
- W62396044 creator A5076613381 @default.
- W62396044 date "1991-01-23" @default.
- W62396044 modified "2023-10-12" @default.
- W62396044 title "Selectivity of Silica—Alumina Matrices" @default.
- W62396044 doi "https://doi.org/10.1021/bk-1991-0452.ch012" @default.
- W62396044 hasPublicationYear "1991" @default.
- W62396044 type Work @default.
- W62396044 sameAs 62396044 @default.
- W62396044 citedByCount "3" @default.
- W62396044 crossrefType "book-chapter" @default.
- W62396044 hasAuthorship W62396044A5025470786 @default.
- W62396044 hasAuthorship W62396044A5043192626 @default.
- W62396044 hasAuthorship W62396044A5076613381 @default.
- W62396044 hasConcept C115624301 @default.
- W62396044 hasConcept C118792377 @default.
- W62396044 hasConcept C127413603 @default.
- W62396044 hasConcept C156622251 @default.
- W62396044 hasConcept C161790260 @default.
- W62396044 hasConcept C178790620 @default.
- W62396044 hasConcept C179104552 @default.
- W62396044 hasConcept C185592680 @default.
- W62396044 hasConcept C191897082 @default.
- W62396044 hasConcept C192562407 @default.
- W62396044 hasConcept C198819137 @default.
- W62396044 hasConcept C2780385392 @default.
- W62396044 hasConcept C2993056060 @default.
- W62396044 hasConcept C31052017 @default.
- W62396044 hasConcept C42360764 @default.
- W62396044 hasConcept C58396970 @default.
- W62396044 hasConcept C8010536 @default.
- W62396044 hasConceptScore W62396044C115624301 @default.
- W62396044 hasConceptScore W62396044C118792377 @default.
- W62396044 hasConceptScore W62396044C127413603 @default.
- W62396044 hasConceptScore W62396044C156622251 @default.
- W62396044 hasConceptScore W62396044C161790260 @default.
- W62396044 hasConceptScore W62396044C178790620 @default.
- W62396044 hasConceptScore W62396044C179104552 @default.
- W62396044 hasConceptScore W62396044C185592680 @default.
- W62396044 hasConceptScore W62396044C191897082 @default.
- W62396044 hasConceptScore W62396044C192562407 @default.
- W62396044 hasConceptScore W62396044C198819137 @default.
- W62396044 hasConceptScore W62396044C2780385392 @default.
- W62396044 hasConceptScore W62396044C2993056060 @default.
- W62396044 hasConceptScore W62396044C31052017 @default.
- W62396044 hasConceptScore W62396044C42360764 @default.
- W62396044 hasConceptScore W62396044C58396970 @default.
- W62396044 hasConceptScore W62396044C8010536 @default.
- W62396044 hasLocation W623960441 @default.
- W62396044 hasOpenAccess W62396044 @default.
- W62396044 hasPrimaryLocation W623960441 @default.
- W62396044 hasRelatedWork W1996530082 @default.
- W62396044 hasRelatedWork W2024673750 @default.
- W62396044 hasRelatedWork W2029623312 @default.
- W62396044 hasRelatedWork W2084016367 @default.
- W62396044 hasRelatedWork W2293272319 @default.
- W62396044 hasRelatedWork W2350310555 @default.
- W62396044 hasRelatedWork W2390878185 @default.
- W62396044 hasRelatedWork W2461906996 @default.
- W62396044 hasRelatedWork W2483961543 @default.
- W62396044 hasRelatedWork W2978956910 @default.
- W62396044 isParatext "false" @default.
- W62396044 isRetracted "false" @default.
- W62396044 magId "62396044" @default.
- W62396044 workType "book-chapter" @default.