Matches in SemOpenAlex for { <https://semopenalex.org/work/W2967192407> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2967192407 abstract "The properties of catalysts based on tungstated aluminum oxide (WA) with different nature and content of the supported metal (Pt, Pd, Rh, Ru, Ni) in sorbitol hydrodeoxygenation in flow mode at 653 K, 4.0 MPa, weight hourly space velocity (WHSV) of raw materials 1.0 h-1 for 8 hours were studied. The samples were characterized by N2 physical adsorption, H2−TPR, CO chemisorption, TEM, NH3−TPD, XRD and DTA–DTG techniques. On all catalysts, a complete transformation of the substrate is observed with the formation of C5−C7 hydrocarbons as main products, which include n–alkanes, cycloalkanes and iso–alkanes. After 1 h of reaction, the yield of C5−C7 alkanes increases from 42 to 74 mol. % in the series of catalysts: 5–Ni/WA < 0.5–Ru/WA < 0.5–Pd/WA < 0.5–Rh/WA < 0.5–Pt/WA. The value of the research octane number (RON) of the C5−C7 fraction increases from 62 to 80 in the series of samples: 0.5–Pt/WA < 0.5–Pd/WA < 0.5–Rh/WA < 5–Ni/WA < 0.5–Ru/WA. Stable values yield and RON C5−C7 fractions (not less than 57.1 mol.% and 70 points, respectively) are achieved on 0.5–Pd/WA catalyst for 8 hours. The main causes of deactivation of all WA–supported catalysts include the formation of carbonaceous deposits and phase transformations of the support in hydrothermal conditions. Oxidative regeneration at a temperature of 973 K contributes to the restoration of textural properties and phase composition of deactivated catalysts. The reduction of the regenerated catalysts at 773 K does not ensure the complete restoration of their dispersion and acidity. For 0.5–Pd/WA catalyst, which is the most stable in hydrodeoxygenation of the sorbitol, the smallest decrease in acidity and dispersion of the supported metal after oxidative regeneration and reduction is observed. The use of methods for the re-dispersion of particles of supported palladium will increase the efficiency of this catalyst." @default.
- W2967192407 created "2019-08-22" @default.
- W2967192407 creator A5009363816 @default.
- W2967192407 creator A5023327680 @default.
- W2967192407 creator A5024643747 @default.
- W2967192407 creator A5031285625 @default.
- W2967192407 creator A5051070050 @default.
- W2967192407 creator A5089004735 @default.
- W2967192407 date "2019-01-01" @default.
- W2967192407 modified "2023-09-25" @default.
- W2967192407 title "Study of the tungstated alumina catalysts deactivation in the process of sorbitol hydrodeoxygenation and their regeneration efficiency evaluation" @default.
- W2967192407 cites W1936830134 @default.
- W2967192407 cites W1970814128 @default.
- W2967192407 cites W1985922243 @default.
- W2967192407 cites W1994787841 @default.
- W2967192407 cites W2021326377 @default.
- W2967192407 cites W2025094152 @default.
- W2967192407 cites W2057674212 @default.
- W2967192407 cites W206246744 @default.
- W2967192407 cites W2074970922 @default.
- W2967192407 cites W2076547796 @default.
- W2967192407 cites W2158161993 @default.
- W2967192407 cites W2549782521 @default.
- W2967192407 cites W2614130623 @default.
- W2967192407 cites W2801531055 @default.
- W2967192407 cites W2899843947 @default.
- W2967192407 doi "https://doi.org/10.1063/1.5122916" @default.
- W2967192407 hasPublicationYear "2019" @default.
- W2967192407 type Work @default.
- W2967192407 sameAs 2967192407 @default.
- W2967192407 citedByCount "0" @default.
- W2967192407 crossrefType "proceedings-article" @default.
- W2967192407 hasAuthorship W2967192407A5009363816 @default.
- W2967192407 hasAuthorship W2967192407A5023327680 @default.
- W2967192407 hasAuthorship W2967192407A5024643747 @default.
- W2967192407 hasAuthorship W2967192407A5031285625 @default.
- W2967192407 hasAuthorship W2967192407A5051070050 @default.
- W2967192407 hasAuthorship W2967192407A5089004735 @default.
- W2967192407 hasConcept C118792377 @default.
- W2967192407 hasConcept C134121241 @default.
- W2967192407 hasConcept C13965031 @default.
- W2967192407 hasConcept C161790260 @default.
- W2967192407 hasConcept C178790620 @default.
- W2967192407 hasConcept C179104552 @default.
- W2967192407 hasConcept C185592680 @default.
- W2967192407 hasConcept C191897082 @default.
- W2967192407 hasConcept C192562407 @default.
- W2967192407 hasConcept C2777882336 @default.
- W2967192407 hasConcept C2778496505 @default.
- W2967192407 hasConcept C42922719 @default.
- W2967192407 hasConcept C513153333 @default.
- W2967192407 hasConceptScore W2967192407C118792377 @default.
- W2967192407 hasConceptScore W2967192407C134121241 @default.
- W2967192407 hasConceptScore W2967192407C13965031 @default.
- W2967192407 hasConceptScore W2967192407C161790260 @default.
- W2967192407 hasConceptScore W2967192407C178790620 @default.
- W2967192407 hasConceptScore W2967192407C179104552 @default.
- W2967192407 hasConceptScore W2967192407C185592680 @default.
- W2967192407 hasConceptScore W2967192407C191897082 @default.
- W2967192407 hasConceptScore W2967192407C192562407 @default.
- W2967192407 hasConceptScore W2967192407C2777882336 @default.
- W2967192407 hasConceptScore W2967192407C2778496505 @default.
- W2967192407 hasConceptScore W2967192407C42922719 @default.
- W2967192407 hasConceptScore W2967192407C513153333 @default.
- W2967192407 hasLocation W29671924071 @default.
- W2967192407 hasOpenAccess W2967192407 @default.
- W2967192407 hasPrimaryLocation W29671924071 @default.
- W2967192407 hasRelatedWork W1964623425 @default.
- W2967192407 hasRelatedWork W1965153945 @default.
- W2967192407 hasRelatedWork W1966626759 @default.
- W2967192407 hasRelatedWork W2011074542 @default.
- W2967192407 hasRelatedWork W2049747842 @default.
- W2967192407 hasRelatedWork W2052707614 @default.
- W2967192407 hasRelatedWork W2216019520 @default.
- W2967192407 hasRelatedWork W2374209161 @default.
- W2967192407 hasRelatedWork W2474449016 @default.
- W2967192407 hasRelatedWork W2753052992 @default.
- W2967192407 hasRelatedWork W2851043380 @default.
- W2967192407 hasRelatedWork W2896066315 @default.
- W2967192407 hasRelatedWork W2903398325 @default.
- W2967192407 hasRelatedWork W2970428219 @default.
- W2967192407 hasRelatedWork W2981574235 @default.
- W2967192407 hasRelatedWork W3025300271 @default.
- W2967192407 hasRelatedWork W3185566440 @default.
- W2967192407 hasRelatedWork W3187796176 @default.
- W2967192407 hasRelatedWork W3191224578 @default.
- W2967192407 hasRelatedWork W131768355 @default.
- W2967192407 isParatext "false" @default.
- W2967192407 isRetracted "false" @default.
- W2967192407 magId "2967192407" @default.
- W2967192407 workType "article" @default.