Journal ArticleDOI
Reaction pathways for the deoxygenation of vegetable oils and related model compounds.
Robert W. Gosselink,Stefan A. W. Hollak,Shu-Wei Chang,Jacco van Haveren,Krijn P. de Jong,Johannes H. Bitter,Daan S. van Es +6 more
TLDR
It is shown that the type of catalyst has a significant effect on the deoxygenation pathway, that is, group 10 metal catalysts are active in decarbonylation/decarboxylation whereas metal sulfide catalyststs are more selective to hydrode oxygengenation.Abstract:
Vegetable oil-based feeds are regarded as an alternative source for the production of fuels and chemicals. Paraffins and olefins can be produced from these feeds through catalytic deoxygenation. The fundamentals of this process are mostly studied by using model compounds such as fatty acids, fatty acid esters, and specific triglycerides because of their structural similarity to vegetable oils. In this Review we discuss the impact of feedstock, reaction conditions, and nature of the catalyst on the reaction pathways of the deoxygenation of vegetable oils and its derivatives. As such, we conclude on the suitability of model compounds for this reaction. It is shown that the type of catalyst has a significant effect on the deoxygenation pathway, that is, group 10 metal catalysts are active in decarbonylation/decarboxylation whereas metal sulfide catalysts are more selective to hydrodeoxygenation. Deoxygenation studies performed under H2 showed similar pathways for fatty acids, fatty acid esters, triglycerides, and vegetable oils, as mostly deoxygenation occurs indirectly via the formation of fatty acids. Deoxygenation in the absence of H2 results in significant differences in reaction pathways and selectivities depending on the feedstock. Additionally, using unsaturated feedstocks under inert gas results in a high selectivity to undesired reactions such as cracking and the formation of heavies. Therefore, addition of H2 is proposed to be essential for the catalytic deoxygenation of vegetable oil feeds.read more
Citations
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Journal ArticleDOI
Highly Regioselective Isomerizing Hydroformylation of Long‐Chain Internal Olefins Catalyzed by a Rhodium Bis(Phosphite) Complex
TL;DR: In this paper, the single-step synthesis, coordination behavior, and application of a bis(phosphite) ligand in the isomerizing hydroformylation of internal olefins was investigated.
Journal ArticleDOI
Recent advances for the production of hydrocarbon biofuel via deoxygenation progress
TL;DR: In this paper, the authors reviewed the use of feedstock, innovation of catalysts, and reaction mechanism involved in the production of hydrocarbon fuels via deoxygenation progress.
Journal ArticleDOI
Developing Nickel–Zirconia Co-Precipitated Catalysts for Production of Green Diesel
Georgios Zafeiropoulos,Nikolaos Nikolopoulos,Eleana Kordouli,Labrini Sygellou,Kyriakos Bourikas,Christos Kordulis,Alexis Lycourghiotis +6 more
TL;DR: In this paper, the transformation of sunflower oil (SO) and waste cooking oil (WCO) into green diesel over co-precipitated nickel-zirconia catalysts was studied.
Journal ArticleDOI
Effects of Fatty Acid Compositions on Heavy Oligomer Formation and Catalyst Deactivation during Deoxygenation of Triglycerides
TL;DR: In this article, the authors used three different reactant triglycerides including palm oil, soybean oil, and linseed oil for catalytic deoxygenation over Pt/γ-Al2O3.
Journal ArticleDOI
Role of Sn promoter in Ni/Al2O3 catalyst for the deoxygenation of stearic acid and coke formation: experimental and theoretical studies
Promporn Reangchim,Promporn Reangchim,Tinnakorn Saelee,Tinnakorn Saelee,Vorranutch Itthibenchapong,Anchalee Junkaew,Narong Chanlek,Apiluck Eiad-Ua,Nawee Kungwan,Kajornsak Faungnawakij +9 more
TL;DR: In this article, the effect of Sn promoter on a Ni/γ-Al2O3 catalyst towards the catalytic activity and catalyst stability via deoxygenation of stearic acid for the production of diesel-range hydrocarbons has been investigated.
References
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Journal ArticleDOI
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