Matches in SemOpenAlex for { <https://semopenalex.org/work/W2059409461> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2059409461 endingPage "408" @default.
- W2059409461 startingPage "398" @default.
- W2059409461 abstract "The isomerization of 1-hexene on 6080-mesh ZSM-5 zeolite was studied in the temperature range 200–280 °C and the results were compared with those previously obtained for HY at 200 °C. The observed products were formed through a variety of processes including double bond shift, cis-trans isomerization, skeletal rearrangement, cracking, hydrogen transfer, polymerization and coke formation. By applying the time-on-stream theory, the products were classified as primary, secondary, or both according to their optimum performance envelope curves on product selectivity plots. At all levels of conversion, cis- and trans-2-hexene were found to be the principal products. The ratio of the initial selectivities of cis- to trans-2-hexene at 200 °C was 0.54, significantly closer to the equilibrium value than previously found for HY zeolite. A possible explanation is given, relating to the difference in pore structure of these zeolites. The ratio of the initial rate of deprotonation to that of hydrogen shift in the hexyl carbenium ion was found to decrease with temperature. At 200 °C this ratio was greater than that observed on HY. Skeletal rearrangement, polymerization, cracking and hydrogen transfer reactions were all found to increase with temperature. At 200 °C the total contribution from these processes accounts for significantly less product than on HY. All products of skeletal rearrangement were observed to be secondary. The formation of 2,3-dimethyl-1-butene appears to be restricted on ZSM-5 due to the size of this molecule. Skeletal rearrangement of 1-hexene gives cis-3-methyl-2-pentene and trans-3-methyl-2-pentene as secondary products. These isomers are also formed as initial products by double bond shift of the principal impurity present in our feed, 2-ethyl-1-butene. Coke formation decreases with increasing temperature. The composition of the coke indicated that it initially consists mainly of adsorbed olefins. No aromatic products could be detected and polymerization appeared to be restricted to the formation of dimers. The small amount of paraffinic products found and the lack of cyclization and dehydrogenation to aromatic structures appear to be related to the pore size of ZSM-5." @default.
- W2059409461 created "2016-06-24" @default.
- W2059409461 creator A5000454699 @default.
- W2059409461 creator A5022165274 @default.
- W2059409461 creator A5085587602 @default.
- W2059409461 date "1985-04-01" @default.
- W2059409461 modified "2023-09-26" @default.
- W2059409461 title "The catalytic isomerization of 1-hexene on H-ZSM-5 zeolite: The effects of a shape-selective catalyst" @default.
- W2059409461 cites W1972334364 @default.
- W2059409461 cites W1974590124 @default.
- W2059409461 cites W1984332446 @default.
- W2059409461 cites W2005658751 @default.
- W2059409461 cites W2011537169 @default.
- W2059409461 cites W2015109743 @default.
- W2059409461 cites W2032454836 @default.
- W2059409461 cites W2064249837 @default.
- W2059409461 cites W2072260905 @default.
- W2059409461 cites W2084014187 @default.
- W2059409461 cites W2087385869 @default.
- W2059409461 cites W2329798853 @default.
- W2059409461 cites W3145282968 @default.
- W2059409461 cites W576219863 @default.
- W2059409461 doi "https://doi.org/10.1016/0021-9517(85)90273-8" @default.
- W2059409461 hasPublicationYear "1985" @default.
- W2059409461 type Work @default.
- W2059409461 sameAs 2059409461 @default.
- W2059409461 citedByCount "56" @default.
- W2059409461 countsByYear W20594094612012 @default.
- W2059409461 countsByYear W20594094612014 @default.
- W2059409461 countsByYear W20594094612015 @default.
- W2059409461 countsByYear W20594094612016 @default.
- W2059409461 countsByYear W20594094612017 @default.
- W2059409461 countsByYear W20594094612018 @default.
- W2059409461 countsByYear W20594094612019 @default.
- W2059409461 countsByYear W20594094612020 @default.
- W2059409461 countsByYear W20594094612021 @default.
- W2059409461 countsByYear W20594094612022 @default.
- W2059409461 countsByYear W20594094612023 @default.
- W2059409461 crossrefType "journal-article" @default.
- W2059409461 hasAuthorship W2059409461A5000454699 @default.
- W2059409461 hasAuthorship W2059409461A5022165274 @default.
- W2059409461 hasAuthorship W2059409461A5085587602 @default.
- W2059409461 hasConcept C118792377 @default.
- W2059409461 hasConcept C126661725 @default.
- W2059409461 hasConcept C161790260 @default.
- W2059409461 hasConcept C178790620 @default.
- W2059409461 hasConcept C185592680 @default.
- W2059409461 hasConcept C2778077586 @default.
- W2059409461 hasConcept C2778597550 @default.
- W2059409461 hasConcept C2780385392 @default.
- W2059409461 hasConcept C2780953527 @default.
- W2059409461 hasConcept C512968161 @default.
- W2059409461 hasConcept C51886252 @default.
- W2059409461 hasConcept C75473681 @default.
- W2059409461 hasConceptScore W2059409461C118792377 @default.
- W2059409461 hasConceptScore W2059409461C126661725 @default.
- W2059409461 hasConceptScore W2059409461C161790260 @default.
- W2059409461 hasConceptScore W2059409461C178790620 @default.
- W2059409461 hasConceptScore W2059409461C185592680 @default.
- W2059409461 hasConceptScore W2059409461C2778077586 @default.
- W2059409461 hasConceptScore W2059409461C2778597550 @default.
- W2059409461 hasConceptScore W2059409461C2780385392 @default.
- W2059409461 hasConceptScore W2059409461C2780953527 @default.
- W2059409461 hasConceptScore W2059409461C512968161 @default.
- W2059409461 hasConceptScore W2059409461C51886252 @default.
- W2059409461 hasConceptScore W2059409461C75473681 @default.
- W2059409461 hasIssue "2" @default.
- W2059409461 hasLocation W20594094611 @default.
- W2059409461 hasOpenAccess W2059409461 @default.
- W2059409461 hasPrimaryLocation W20594094611 @default.
- W2059409461 hasRelatedWork W1964878756 @default.
- W2059409461 hasRelatedWork W1982865822 @default.
- W2059409461 hasRelatedWork W2027123251 @default.
- W2059409461 hasRelatedWork W2061430027 @default.
- W2059409461 hasRelatedWork W2068100345 @default.
- W2059409461 hasRelatedWork W2084922256 @default.
- W2059409461 hasRelatedWork W2363498292 @default.
- W2059409461 hasRelatedWork W2366144817 @default.
- W2059409461 hasRelatedWork W2386553014 @default.
- W2059409461 hasRelatedWork W4213465123 @default.
- W2059409461 hasVolume "92" @default.
- W2059409461 isParatext "false" @default.
- W2059409461 isRetracted "false" @default.
- W2059409461 magId "2059409461" @default.
- W2059409461 workType "article" @default.