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HERO ID
4972383
Reference Type
Journal Article
Title
Regioselective hydrogenolysis of alga-derived squalane over silica-supported ruthenium-vanadium catalyst
Author(s)
Nakaji, Y; Nakagawa, Y; Tamura, M; Tomishige, K
Year
2018
Is Peer Reviewed?
Yes
Journal
Fuel Processing Technology
ISSN:
0378-3820
Publisher
Elsevier
Volume
176
Issue
Elsevier
Page Numbers
249-257
Language
English
DOI
10.1016/j.fuproc.2018.03.038
Web of Science Id
WOS:000435062600031
URL
https://linkinghub.elsevier.com/retrieve/pii/S0378382018303151
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Abstract
Addition effect of 2nd metal to Ru catalysts in hydrogenolysis of squalane was investigated. Addition of V gave lower methane selectivity and higher C14-C16 selectivity and the effect was the most remarkable over SiO2 support. However, addition of V decreased the catalyst activity and increased the deposited amount of carbonaceous species. From hydrogenolysis of n-hexadecane, addition of V suppressed the formation of methane via terminal C-C bond dissociation, but the formation via fragmentation was not suppressed. Ru and V valences in Ru-VOx/SiO2 (V/Ru = 0.25) after reduction were 0 and +III, respectively. The size of Ru particles was about 4 nm from XRD even in changing V/Ru ratio. H-2 chemisorption showed that V covered the Ru particles and reduced the size of Ru ensemble. In reuse test, it was difficult to retain the catalyst performance for hydrogenolysis of squalane even with various treatments of the recovered catalyst such as washing with n-hexane, heating in N-2 flow or calcination in air. From XAS analysis, the contact of Ru particles with air caused the aggregation of Ru metal especially when calcined in air.
Keywords
Ruthenium; Hydrogenolysis; Squalane; Regioselectivity; Vanadium; Algal biomass
Tags
IRIS
•
Vanadium Compounds - Problem Formulation
Literature Search: Jan 2010 - Mar 2019
WoS
Combined data set
Excluded by SWIFT Review screen
•
Vanadium Inhalation
Literature Search: Jan 2010 – Mar 2019
WoS
Combined Dataset
Excluded by SWIFT Review screen
OPPT
•
Squalane
Literature Search
Fate
WOS (private)
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