Green diesel production over nickel-alumina co-precipitated catalysts

Gousi, Mantha; Andriopoulou, Chrysanthi; Bourikas, Kyriakos; Ladas, S.; Sotiriou, Malamas; Kordulis, Christos; Lycourghiotis, Alexis

doi:10.1016/j.apcata.2017.02.010

Cited by 101 publications

(80 citation statements)

References 76 publications

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“…This procedure was applied successfully for developing high nickel content-alumina nanostructured catalysts [22]. In fact, high specific surface area mesoporous materials with very small nickel nanocrystals supported on small alumina nanograins and very active in the SDO of sunflower oil (SO) have been obtained [22]. These results encourage us to extend our study to co-precipitated nickel-zirconia catalysts.…”

Section: Introductionmentioning

confidence: 81%

“…However, the study of the first series of catalysts allowed us to select the most promising nickel loadings (60NiZr C , 80NiZr C ) for SDO. The former loading has also been proved to be the optimum one in the nickel-alumina co-precipitated catalysts [22].…”

Section: First Series Of Catalysts: Effect Of Loading-the Poisoning Amentioning

confidence: 95%

“…The subject has been recently reviewed by our group [20] and others [21]. A careful survey of the recent literature has revealed the need for developing nickel catalysts with high nickel content (e.g., 60 wt % Ni in Ni-Al 2 O 3 catalysts) at high specific surface area in order to ensure as high as possible active surface [22]. This is necessary in order to obtain high yields of hydrocarbons for quite high values of reactant to catalyst ratio (in batch or semi-batch reactors) or Liquid Hourly Space Velocity (in fixed bed reactors).…”

Section: Introductionmentioning

confidence: 99%

“…In view of the above, we have undertaken developing nickel-carrier nanostructured catalysts following a controlled co-precipitation methodology and performing direct hydrogenation of the dried samples, without previous air-calcination. This procedure was applied successfully for developing high nickel content-alumina nanostructured catalysts [22]. In fact, high specific surface area mesoporous materials with very small nickel nanocrystals supported on small alumina nanograins and very active in the SDO of sunflower oil (SO) have been obtained [22].…”

Section: Introductionmentioning

confidence: 99%

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Developing Nickel–Zirconia Co-Precipitated Catalysts for Production of Green Diesel

et al. 2019

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The transformation of sunflower oil (SO) and waste cooking oil (WCO) into green diesel over co-precipitated nickel–zirconia catalysts was studied. Two series of catalysts were prepared. The first series included catalysts with various Ni loadings prepared using zirconium oxy-chloride, whereas the second series included catalysts with 60–80 wt % Ni loading prepared using zirconium oxy-nitrate as zirconium source. The catalysts were characterized and evaluated in the transformation of SO into green diesel. The best catalysts were also evaluated for green diesel production using waste cooking oil. The catalysts performance for green diesel production is mainly governed by the Ni surface exposed, their acidity, and the reducibility of the ZrO2. These characteristics depend on the preparation method and the Zr salt used. The presence of chlorine in the catalysts drawn from the zirconium oxy-chloride results to catalysts with relatively low Ni surface, high acidity and hardly reduced ZrO2 phase. These characteristics lead to relatively low activity for green diesel production, whereas they favor high yields of wax esters. Ni-ZrO2 catalysts with Ni loading in the range 60–80 wt %, prepared by urea hydrothermal co-precipitation method using zirconium oxy-nitrate as ZrO2 precursor salt exhibited higher Ni surface, moderate acidity, and higher reducibility of ZrO2 phase. The latter catalysts were proved to be very promising for green diesel production.

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Section: Introductionmentioning

confidence: 81%

Section: First Series Of Catalysts: Effect Of Loading-the Poisoning Amentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Developing Nickel–Zirconia Co-Precipitated Catalysts for Production of Green Diesel

et al. 2019

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“…Finally, BTL processes involve the high temperature gasification of the biomass for the production of syngas which is rich in H 2 and CO and the subsequent chemical synthesis of liquid green diesel through the well known Fischer-Tropsch (FT) process. The green diesel produced by the Fischer-Tropsch method is sometimes referred as FT green diesel [21,22].…”

Section: Introductionmentioning

confidence: 99%

Green Diesel: Biomass Feedstocks, Production Technologies, Catalytic Research, Fuel Properties and Performance in Compression Ignition Internal Combustion Engines

et al. 2019

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The present investigation provides an overview of the current technology related to the green diesel, from the classification and chemistry of the available biomass feedstocks to the possible production technologies and up to the final fuel properties and their effect in modern compression ignition internal combustion engines. Various biomass feedstocks are reviewed paying attention to their specific impact on the production of green diesel. Then, the most prominent production technologies are presented such as the hydro-processing of triglycerides, the upgrading of sugars and starches into C15–C18 saturated hydrocarbons, the upgrading of bio-oil derived by the pyrolysis of lignocellulosic materials and the “Biomass-to-Liquid” (BTL) technology which combines the production of syngas (H2 and CO) from the gasification of biomass with the production of synthetic green diesel through the Fischer-Tropsch process. For each of these technologies the involved chemistry is discussed and the necessary operation conditions for the maximum production yield and the best possible fuel properties are reviewed. Also, the relevant research for appropriate catalysts and catalyst supports is briefly presented. The fuel properties of green diesel are then discussed in comparison to the European and US Standards, to petroleum diesel and Fatty Acid Methyl Esters (FAME) and, finally their effect on the compression ignition engines are analyzed. The analysis concludes that green diesel is an excellent fuel for combustion engines with remarkable properties and significantly lower emissions.

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Upgrading of Lipids to Hydrocarbon Fuels via (Hydro)deoxygenation

Kubička

2019

Chemical Catalysts for Biomass Upgrading

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Green diesel production over nickel-alumina co-precipitated catalysts

Cited by 101 publications

References 76 publications

Developing Nickel–Zirconia Co-Precipitated Catalysts for Production of Green Diesel

Developing Nickel–Zirconia Co-Precipitated Catalysts for Production of Green Diesel

Green Diesel: Biomass Feedstocks, Production Technologies, Catalytic Research, Fuel Properties and Performance in Compression Ignition Internal Combustion Engines

Upgrading of Lipids to Hydrocarbon Fuels via (Hydro)deoxygenation

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