Matches in SemOpenAlex for { <https://semopenalex.org/work/W3131505280> ?p ?o ?g. }
- W3131505280 endingPage "120479" @default.
- W3131505280 startingPage "120479" @default.
- W3131505280 abstract "Thermally cracked naphtha represents a challenging feed for many catalytic processes. Its contaminant content and reactivity cause the deactivation of catalysts. Nevertheless, the use of an amorphous silica-alumina acid catalyst to convert and reduce the alkene content in thermally cracked naphtha was possible. The purpose of this study was to determine the cause(s) of catalyst deactivation by analysis of spent catalysts after conversion of cracked naphtha at different conditions in the range 250–350 °C, 6 MPa and WHSV of 0.5–2 h−1. It was found that nitrogen bases, suspected to be important acid catalyst poisons, were not the main cause of catalyst deactivation. Nitrogen was more abundant in deposits on the catalyst at the inlet compared to the outlet of the reactor, but the accumulated nitrogen in deposits represented only a minor fraction of the total amount of basic nitrogen to which the catalyst was exposed. Carbonaceous deposits were the main cause of catalyst deactivation and the profile of the deposition on the catalyst changed with temperature. At 325 °C the amount of deposits at the reactor outlet was higher, with lower H/C ratio and higher persistent free radical content than at the reactor inlet. Although some of the precursor species that formed deposits were present in the feed, some of the precursor species that formed deposits were produced during the conversion process. Although the contribution of acid catalysis was not ruled out, many observations in the study indicated that carbonaceous deposits formed mainly due to free radical reactions." @default.
- W3131505280 created "2021-03-01" @default.
- W3131505280 creator A5062741497 @default.
- W3131505280 creator A5064623925 @default.
- W3131505280 date "2021-06-01" @default.
- W3131505280 modified "2023-09-25" @default.
- W3131505280 title "Causes of deactivation of an amorphous silica-alumina catalyst used for processing of thermally cracked naphtha in a bitumen partial upgrading process" @default.
- W3131505280 cites W1498483004 @default.
- W3131505280 cites W152757273 @default.
- W3131505280 cites W1551841129 @default.
- W3131505280 cites W1602302637 @default.
- W3131505280 cites W1967601099 @default.
- W3131505280 cites W1974346543 @default.
- W3131505280 cites W1975677555 @default.
- W3131505280 cites W1976021421 @default.
- W3131505280 cites W1978293404 @default.
- W3131505280 cites W1999320782 @default.
- W3131505280 cites W2000164805 @default.
- W3131505280 cites W2011491992 @default.
- W3131505280 cites W2014202284 @default.
- W3131505280 cites W2017684348 @default.
- W3131505280 cites W2021591103 @default.
- W3131505280 cites W2035902702 @default.
- W3131505280 cites W2038268551 @default.
- W3131505280 cites W2039443673 @default.
- W3131505280 cites W2040184608 @default.
- W3131505280 cites W2052856568 @default.
- W3131505280 cites W2054095047 @default.
- W3131505280 cites W2054438889 @default.
- W3131505280 cites W2057988244 @default.
- W3131505280 cites W2072657613 @default.
- W3131505280 cites W2073176198 @default.
- W3131505280 cites W2074098695 @default.
- W3131505280 cites W2141565159 @default.
- W3131505280 cites W2335583162 @default.
- W3131505280 cites W2488021626 @default.
- W3131505280 cites W2498600971 @default.
- W3131505280 cites W2546560523 @default.
- W3131505280 cites W2752735284 @default.
- W3131505280 cites W2796586119 @default.
- W3131505280 cites W2800461857 @default.
- W3131505280 cites W2888355206 @default.
- W3131505280 cites W2923219332 @default.
- W3131505280 cites W2923886730 @default.
- W3131505280 cites W2957451019 @default.
- W3131505280 cites W2964010579 @default.
- W3131505280 cites W3014795213 @default.
- W3131505280 cites W3040567592 @default.
- W3131505280 cites W73749631 @default.
- W3131505280 doi "https://doi.org/10.1016/j.fuel.2021.120479" @default.
- W3131505280 hasPublicationYear "2021" @default.
- W3131505280 type Work @default.
- W3131505280 sameAs 3131505280 @default.
- W3131505280 citedByCount "3" @default.
- W3131505280 countsByYear W31315052802021 @default.
- W3131505280 countsByYear W31315052802023 @default.
- W3131505280 crossrefType "journal-article" @default.
- W3131505280 hasAuthorship W3131505280A5062741497 @default.
- W3131505280 hasAuthorship W3131505280A5064623925 @default.
- W3131505280 hasConcept C127413603 @default.
- W3131505280 hasConcept C134484671 @default.
- W3131505280 hasConcept C142724271 @default.
- W3131505280 hasConcept C149629883 @default.
- W3131505280 hasConcept C161790260 @default.
- W3131505280 hasConcept C178790620 @default.
- W3131505280 hasConcept C179104552 @default.
- W3131505280 hasConcept C185592680 @default.
- W3131505280 hasConcept C204787440 @default.
- W3131505280 hasConcept C2776910235 @default.
- W3131505280 hasConcept C42360764 @default.
- W3131505280 hasConcept C537208039 @default.
- W3131505280 hasConcept C71924100 @default.
- W3131505280 hasConceptScore W3131505280C127413603 @default.
- W3131505280 hasConceptScore W3131505280C134484671 @default.
- W3131505280 hasConceptScore W3131505280C142724271 @default.
- W3131505280 hasConceptScore W3131505280C149629883 @default.
- W3131505280 hasConceptScore W3131505280C161790260 @default.
- W3131505280 hasConceptScore W3131505280C178790620 @default.
- W3131505280 hasConceptScore W3131505280C179104552 @default.
- W3131505280 hasConceptScore W3131505280C185592680 @default.
- W3131505280 hasConceptScore W3131505280C204787440 @default.
- W3131505280 hasConceptScore W3131505280C2776910235 @default.
- W3131505280 hasConceptScore W3131505280C42360764 @default.
- W3131505280 hasConceptScore W3131505280C537208039 @default.
- W3131505280 hasConceptScore W3131505280C71924100 @default.
- W3131505280 hasFunder F4320325651 @default.
- W3131505280 hasFunder F4320334593 @default.
- W3131505280 hasLocation W31315052801 @default.
- W3131505280 hasOpenAccess W3131505280 @default.
- W3131505280 hasPrimaryLocation W31315052801 @default.
- W3131505280 hasRelatedWork W1988195407 @default.
- W3131505280 hasRelatedWork W1992158717 @default.
- W3131505280 hasRelatedWork W2069187535 @default.
- W3131505280 hasRelatedWork W2278260048 @default.
- W3131505280 hasRelatedWork W2361345438 @default.
- W3131505280 hasRelatedWork W2494750538 @default.
- W3131505280 hasRelatedWork W2748952813 @default.
- W3131505280 hasRelatedWork W2950975728 @default.