Pathways for the Deoxygenation of Triglycerides to Aliphatic Hydrocarbons over Activated Alumina

Vonghia, Enrico; Boocock, D. G. B.; Konar, Samir K.; Leung, Anna Oi Wah

doi:10.1021/ef00054a024

Cited by 109 publications

(90 citation statements)

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“…The formation of partially deoxygenated groups increases as temperature and WHSV increase; these compounds are considered as primary intermediates of reaction of the free fatty acids to olefins and as by-products of reaction to the alkanes and aromatics as a result of processes of cyclization and hydrogenation of the olefins [29]. The hydrocarbon cuts formed have a high selectivity towards the formation of chains of the order of diesel and in less amount hydrocarbon formation of the order of jet fuel and gasolines in a proportion of 6 : 1 and 21 : 1, respectively, Figures 6, 7, and 8.…”

Section: Cg/msdmentioning

confidence: 99%

Catalytic Activity of a Bifunctional Catalyst for Hydrotreatment of Jatropha curcas L. Seed Oil

García-Dávila

Ocaranza‐Sánchez

Sánchez

et al. 2018

Journal of Spectroscopy

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The hydrotreating process of vegetable oils (HPVO) involves the transformation of vegetable oil triglycerides into straight chain alkanes, which are carried out by deoxygenation reactions, generating multiple hydrocarbon compounds, cuts similar to heavy vacuum oil. The HPVO is applied to Jatropha curcas oil on USY zeolite supported with gamma alumina and platinum deposition on the catalytic as hydrogenation component. The acid of additional activity of the supports allows the development of catalytic routes that the intervention of catalytic centers of different nature reaches the desired product. The products of the hydrotreating reaction with Jatropha curcas seed oil triglycerides were identified by Fourier transform infrared spectroscopy and by mass spectroscopy to identify and analyze the generated intermediate and final hydrocarbon compounds.

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Section: Cg/msdmentioning

confidence: 99%

Catalytic Activity of a Bifunctional Catalyst for Hydrotreatment of Jatropha curcas L. Seed Oil

García-Dávila

Ocaranza‐Sánchez

Sánchez

et al. 2018

Journal of Spectroscopy

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“…In addition, the increase in the amount of aluminum oxide (Al2O3) contained in Al dross after acid washing as shown in XRF (Table 1) might contribute to the slight increment of the bio-oil yield. Some studies on pyrolysis of canola oil and sunflower oil using aluminum oxide as catalyst proved the increment in the bio-oil yield [21,22]. For obtaining a detailed understanding of the selectivity of each catalyst toward n-alkane and n-alkene obtained from the catalytic pyrolysis, the composition was analyzed by GC analysis.…”

Section: Chromatographic Analysis Of the Bio-oilmentioning

confidence: 99%

Characterization and Application of Aluminum Dross as Catalyst in Pyrolysis of Waste Cooking Oil

Kamil

Salmiaton

Shahruzzaman

et al. 2016

Bull. Chem. React. Eng. Catal.

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Aluminium dross, a waste material produced by dissolution of aluminum scrap, was characterized physically and chemically by various analysis techniques for a potential to be used as catalyst. Using catalyst from waste materials reduced the cost for synthesizing of new catalyst. An efficient catalyst derived from industrial solid waste was modified by acid washing for using in a pyrolysis of waste cooking oil. The modification of aluminum dross resulted in increased surface area (from 0.96 to 68.24 m 2 /g), acidity (from 315 to 748 µmol/g) and thermal stability. Pyrolysis waste cooking oil was used to test the performance of aluminum dross as catalyst before and after modification. The product analysis showed a better result than the unmodified material based on increased yield of bio-oil and improved selectivity.

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“…[47][48][49] Na primeira etapa, mostrada na reação 1 da Figura 5, que é chamada craqueamento primário, são formadas duas moléculas de ácidos carboxílicos, uma molécula de ceteno e acroleína. A mistura formada é extremamente instável nas condições reacionais e reage rapidamente, conforme mostrado na reação 2 da Figura 5, formando novos ácidos carboxílicos, hidrocarbonetos, aldeídos e cetonas.…”

Section: Processos De Obtenção De Hidrocarbonetos: Bio-óleounclassified

Biocombustíveis a partir de óleos e gorduras: desafios tecnológicos para viabilizá-los

Suarez¹,

Santos²,

Rodrigues³

et al. 2009

Quím. Nova

112

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BiocomBustíveis a partir de óleos e gorduras: desafios tecnológicos para viaBilizá-los paulo a. z. suarez*, andré l. f. santos, Juliana p. rodrigues e melquizedeque B. alves Instituto de Química, Universidade de Brasília, CP 4478, Brasil Recebido em 28/1/09; aceito em 3/3/09; publicado na web em 17/3/09 OILS AND FATS BASED BIOFUELS: TECHNOLOGICAL CHALENDGES. Periodically, during petroleum shortage, fatty acids and their derivatives have been used as alternative fuels to those derived from petroleum. Different approaches have been proposed, including the use of neat fats and oils or their derivatives. Indeed, the utilization of biodiesel produced by alcoholysis of triacilglycerides or esterification of fatty acids, or hydrocarbons obtained from cracking of fatty materials were studied and used in several countries. Increasing concerns about energy security and climate changes have lead several countries, including Brazil, to start up biofuels programs. Different technologies are currently being developed in order to produce biofuels with economical feasibility. In this work are discussed alternative fatty raw-materials and processing technologies that are currently being studied in order to produce fuels suitable to sustainable substitute diesel fuel.

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Pathways for the Deoxygenation of Triglycerides to Aliphatic Hydrocarbons over Activated Alumina

Cited by 109 publications

References 0 publications

Catalytic Activity of a Bifunctional Catalyst for Hydrotreatment of Jatropha curcas L. Seed Oil

Catalytic Activity of a Bifunctional Catalyst for Hydrotreatment of Jatropha curcas L. Seed Oil

Characterization and Application of Aluminum Dross as Catalyst in Pyrolysis of Waste Cooking Oil

Biocombustíveis a partir de óleos e gorduras: desafios tecnológicos para viabilizá-los

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