Hydrodeoxygenation of waste vegetable oil over sulfide catalysts

Toba, Makoto; Abe, Yohko; Kuramochi, Hidetoshi; Osako, Masahiro; Mochizuki, Takehisa; Yoshimura, Y.

doi:10.1016/j.cattod.2010.11.049

Cited by 204 publications

(108 citation statements)

References 7 publications

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“…Authors have indicated the dominance of Oleic acid and Palmitic acid. Other investigations have indicated the dominance of Oleic acid and Linoleic acid in the waste cooking oil [25][26][27]. Therefore, the composition of fatty acid depends strongly on their origin.…”

Section: Waste Fish Fats Fatty Acids Compositionmentioning

confidence: 99%

Characterization of the liquid products obtained from Tunisian waste fish fats using the pyrolysis process

Kraiem

Trabelsi

Naoui

et al. 2015

Fuel Processing Technology

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Section: Waste Fish Fats Fatty Acids Compositionmentioning

confidence: 99%

Characterization of the liquid products obtained from Tunisian waste fish fats using the pyrolysis process

Kraiem

Trabelsi

Naoui

et al. 2015

Fuel Processing Technology

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“…Sulfided NiW [74,93,104,105] were studied for HDO processes. that donate active hydrogen species, but they are less active as compared to metal sites.…”

Section: Sulfided W and Re Catalystsmentioning

confidence: 99%

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

Wang

2012

Catalysis for Sustainable Energy

119

147

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“…The pine-or cedar-derived bio-oils with large amounts of oxygen-containing compounds, such as phenol derivatives, can be further upgraded to a gasoline-like fuel through hydrodeoxygenation (HDO) over transition metal catalysts and mesoporous sulfide catalysts under severe reaction conditions [6,10,11]. On the other hand, the transformation of vegetable oils to HVO as a drop-in diesel-like fuel can also be carried out using HDO technology [12,13]. However, recent studies have indicated that transition metal catalysts and mesoporous sulfide catalysts are seriously deactivated by the large numbers of oxygen-containing compounds present in bio-oil or vegetable oils under the severe HDO conditions [10,12].…”

Section: Introductionmentioning

confidence: 99%

Co-Processing of Jatropha-Derived Bio-Oil with Petroleum Distillates over Mesoporous CoMo and NiMo Sulfide Catalysts

et al. 2018

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Abstract:The co-processing of an unconventional type of Jatropha bio-oil with petroleum distillates over mesoporous alumina-supported CoMo and NiMo sulfide catalysts (denoted CoMo/γ-Al 2 O 3 and NiMo/γ-Al 2 O 3 ) was studied. Either a stainless-steel high-pressure batch-type reactor or an up-flow fixed-bed reaction system was used under severe reaction conditions (330-350 • C and 5-7 MPa), similar to the conditions of the conventional diesel hydrodesulfurization (HDS) process. To understand the catalytic performance of the mesoporous sulfide catalysts for co-processing, we prepared two series of oil feedstocks. First, model diesel oils, consisting of hydrocarbons and model molecules with various heteroatoms (sulfur, oxygen, and nitrogen) were used for the study of the reaction mechanisms. Secondly, low-grade oil feedstocks, which were prepared by dissolving of an unconventional type of Jatropha bio-oil (ca. 10 wt %) in the petroleum distillates, were used to study the practical application of the catalysts. Surface characterization by gas sorption, spectroscopy, and electron microscopy indicated that the CoMo/γ-Al 2 O 3 sulfide catalyst, which has a larger number of acidic sites and coordinatively unsaturated sites (CUS) on the mesoporous alumina framework, was associated with small Co-incorporated MoS 2 -like slabs with high stacking numbers and many active sites at the edges and corners. In contrast, the NiMo/γ-Al 2 O 3 sulfide catalyst, which had a lower number of acidic sites and CUS on mesoporous alumina framework, was associated with large Ni-incorporated MoS 2 -like slabs with smaller stacking numbers, yielding more active sites at the brims and corresponding to high hydrogenation (HYD) activity. Concerning the catalytic performance, the mesoporous CoMo/γ-Al 2 O 3 sulfide catalyst with large CUS number was highly active for the conventional diesel HDS process; unfortunately, it was deactivated when oxygen-and nitrogen-containing model molecules or Jatropha bio-oil were present in the oil feedstock. In contrast, the mesoporous NiMo/γ-Al 2 O 3 sulfide catalyst, which had a high HYD activity and low affinity for heteroatoms, was efficient in the simultaneous removal of those heteroatoms from model diesel oils, and, in particular, Jatropha bio-oil co-fed with petroleum distillates. This could allow the production of a drop-in diesel-like fuel, which would be a greener fuel and reduce the CO 2 emissions and hazardous exhaust gases produced by the transport sector, reducing the burden on the environment.

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Hydrodeoxygenation of waste vegetable oil over sulfide catalysts

Cited by 204 publications

References 7 publications

Characterization of the liquid products obtained from Tunisian waste fish fats using the pyrolysis process

Characterization of the liquid products obtained from Tunisian waste fish fats using the pyrolysis process

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

Co-Processing of Jatropha-Derived Bio-Oil with Petroleum Distillates over Mesoporous CoMo and NiMo Sulfide Catalysts

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