Green diesel synthesis by hydrodeoxygenation of bio-based feedstocks: Strategies for catalyst design and development

Nanda, Arun; Sharma, Rohit; Dalai, Ajay K.

doi:10.1016/j.rser.2015.03.074

Cited by 262 publications

(107 citation statements)

References 128 publications

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“…Due to the higher intrinsic activity of the Rh 2 P catalyst, different publications have focused on the application of Rh 2 P as a catalyst material for hydrotreating reactions [27][28][29][30][31][32][33][34]43,47,52], for the hydrogen evolution reaction [53], and for the hydroformylation [35]. Reviews focusing on the metal phosphides in general and their applications as catalyst materials can be found elsewhere [24][25][26]49,54,55].…”

Section: Rh 2 P As a Prototypic Example For Pgm Phosphides In Hydrotrmentioning

confidence: 99%

“…Phosphorus has a ligand effect on the metal site of the phosphide, modifying the electron density on the metal cation (M δ+ ) and resulting in an easier hydrogen dissociation on this surface, and the catalytic center can act as a Lewis acid [55,66]. The group P-OH, which is co-located on the metal phosphide phase as result of an incomplete reduction of phosphorus on the surface, constitutes a Brønsted acid of moderate acidity [63,66].…”

Section: Rh 2 P As a Catalyst Materials For Hdomentioning

confidence: 99%

“…A proposed HDO mechanism is reported in Figure 8. The oxygenated compounds and adsorbed H 2 are activated on the metal center and hydrogen atoms from the metal center and P-OH site react with the oxygenated species adsorbed on the surface; finally, water and the deoxygenated product species are formed [55].…”

Section: Rh 2 P As a Catalyst Materials For Hdomentioning

confidence: 99%

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Platinum Group Metal Phosphides as Efficient Catalysts in Hydroprocessing and Syngas-Related Catalysis

Rupflin

Boscagli²,

Schunk³

2018

Catalysts

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Platinum group metal phosphides are reviewed as catalytic materials for hydroprocessing and syngas-related catalysis. Starting from synthetic procedures leading to highly disperse nano-particular compounds, their properties in the applications are discussed and compared with relevant benchmarks, if available. Regarding their mode of action, two confronting mechanistic scenarios are presented: (i) a cooperative scenario in which catalytic sites of different functionalities are active in hydroprocessing and (ii) single site catalysis, which appears to be the relevant mode of action in syngas-related catalysis and which occurs over "frustrated" active sites.

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Section: Rh 2 P As a Prototypic Example For Pgm Phosphides In Hydrotrmentioning

confidence: 99%

Section: Rh 2 P As a Catalyst Materials For Hdomentioning

confidence: 99%

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Platinum Group Metal Phosphides as Efficient Catalysts in Hydroprocessing and Syngas-Related Catalysis

Rupflin

Boscagli²,

Schunk³

2018

Catalysts

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“…Hydrocracking may be the preferred conversion route of vegetable oil into biofuel using hydrogen gas to selectively remove oxygen atoms as water and carbon dioxide [7]. Hydrocracking reaction of the triglycerides can consist of two main reactions routes in the process of transforming triglycerides into liquid hydrocarbon fuel, namely hydrodecarbonylation / decarboxylation (HDC) and hydrodeoxygenation (HDO), as shown in Figure 1 [2,[8][9][10][11]. The reaction route may lead to the formation of hydrocarbons such as n-paraffins, isoparaffins, cycloparaffins, aromatics, and olefins [2,8,9].…”

Section: Introductionmentioning

confidence: 99%

Hydrocracking of Cerbera manghas Oil with Co-Ni/HZSM-5 as Double Promoted Catalyst

Marlinda

Muttaqii

Gunardi

et al. 2017

Bull. Chem. React. Eng. Catal.

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The effect of various reaction temperature on the hydrocracking of Cerbera manghas oil to produce a paraffin-rich mixture of hydrocarbons with Co-Ni/HZSM-5 as doubled promoted catalyst were studied. The Co-Ni/HZSM-5 catalyst with various metal loading and metal ratio was prepared by incipient wetness impregnation. The catalysts were characterized by XRD, AAS, and N2 adsorption-desorption. Surface area, pore diameter, and pore volume of catalysts decreased with the increasing of metals loading. The hydrocracking process was conducted under initial hydrogen pressure in a batch reactor equipped with a mechanical stirrer. The reaction was carried out at a temperature of 300-375 o C for 2 h. Depending on the experimental condition, the reaction pressure changed between 10 bar and 15 bar. Several parameters were used to evaluate biofuel produced, including oxygen removal, hydrocarbon composition and gasoline/kerosene/diesel yields. Biofuel was analyzed by Fourier Transform Infrared Spectroscopic (FTIR) and gas chromatography-mass spectrometry (GC-MS). The composition of hydrocarbon compounds in liquid products was similar to the compounds in the gasoil sold in unit of Pertamina Gas Stations, namely pentadecane, hexadecane, heptadecane, octadecane, and nonadecane with different amounts for each biofuel produced at different reaction temperatures. However, isoparaffin compounds were not formed at all operating conditions. Pentadecane (n-C15) and heptadecane (n-C17) were the most abundant composition in gasoil when Co-Ni/HZSM-5 catalyst was used. Cerbera Manghas oil can be recommended as the source of non-edible vegetable oil to produce gasoil as an environmentally friendly transportation fuel.

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“…[6] Therefore, by 2030, biofuels production is forecast to reach 6.5 Mb/d in comparison to its production in 2010 (1.8 Mb/d) indicating that the need and supply are forecasted to increase tremendously in a near future. [1,7] Among various biodiesel feedstocks, algal biomass can produce much higher quantities of oils than terrestrial oil plants [8] and algae biomass can be directly converted into energy. [9,10] Algal biodiesel production has attracted common interest within the scientific and industrial fields.…”

Section: Introductionmentioning

confidence: 99%

Energy analysis of extractive-transesterification of algal lipids for biocrude production

Martinez‐Guerra

Gude

2016

Biofuels

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Algae biomass is the most promising feedstock for biofuel production since it can provide a sustainable route to achieve independence from fossil fuel sources. Energy-positive biofuel production from algal biomass has been the major goal for many researchers in recent years. The search for efficient extraction and chemical conversion methods that produce high energy ratios has become an important endeavor in this field. In this regard, microwaves and ultrasound have been utilized as convenient mechanisms in algal biodiesel production. However, none of the studies reported on the energy analysis of the extraction and transesterification methods. Energy analysis of the extractive-transesterification processes using microwave (with ethanol and with ethanol and hexane as co-solvent) and ultrasound irradiations to produce biocrude from microalgae (Chlorella sp.) is presented in this paper. Power input and reaction volumes were varied to study the effects of power density and intensity on the biocrude yields. Results from this analysis show that a biocrude yield higher than 90% could be obtained with an energy input to output ratio of less than one when microwave irradiation is used as the heating mechanism.

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Green diesel synthesis by hydrodeoxygenation of bio-based feedstocks: Strategies for catalyst design and development

Cited by 262 publications

References 128 publications

Platinum Group Metal Phosphides as Efficient Catalysts in Hydroprocessing and Syngas-Related Catalysis

Platinum Group Metal Phosphides as Efficient Catalysts in Hydroprocessing and Syngas-Related Catalysis

Hydrocracking of Cerbera manghas Oil with Co-Ni/HZSM-5 as Double Promoted Catalyst

Energy analysis of extractive-transesterification of algal lipids for biocrude production

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