The Cracking of Cottonseed Oil

Egloff, Gustav; Morrell, J. C.

doi:10.1021/ie50276a020

Cited by 20 publications

(11 citation statements)

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“…Production of hydrocarbons from vegetable oils and animal fats has been studied in the recent years mainly by catalytic cracking [2][3][4][5][6][7][8]. There are also a few studies involving the thermal cracking of plant oils and animal fats that have been reported in the literature with the major goal of producing an alternative source for conventional fuels and chemicals [9][10][11]. The main products of their studies were aromatics, aliphatics and C 2 -C 4 olefins.…”

Section: Introductionmentioning

confidence: 99%

Systematics of renewable olefins from thermal cracking of canola oil

Sadrameli

Green

2007

Journal of Analytical and Applied Pyrolysis

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Section: Introductionmentioning

confidence: 99%

Systematics of renewable olefins from thermal cracking of canola oil

Sadrameli

Green

2007

Journal of Analytical and Applied Pyrolysis

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“…for the other metals, these two reactions were prevalent in relation with HDO which occurring in small amounts that ranged from metal to metal. the main product of the reaction to Pt, ni and Pd were the n-alkanes C 15 and C 17 , but for cobalt was the n-alkanes C15, C 16 , C 17 and C 18 , where the yield non-varied significantly from metal to metal. The main Gaseous products compose was methane, which was due to the methanation reactions of carbon oxides by the absence of these in the product, being the Co and ni the more selective to CH 4 .…”

Section: Cracking and Deoxygenation Of Molecules Modelsmentioning

confidence: 97%

“…the temperature effect was positive in relation to conversion when was compared to the same conditions (1 g/min of the solution and 225 mL/min of H 2 ) for hydrotreating using niW/siO 2 -al 2 O 3 catalyst (Yang et al, 2013) The conversion was nearly complete at 300 °C with a large amount of C 18 product. However, the increase in temperature failed to reach 100% conversion but decreased the content of long-chain hydrocarbons C 18 . therefore, selectivity to octadecane (C 18 ) decreased with temperature increase.…”

Section: Cracking and Deoxygenation Of Molecules Modelsmentioning

confidence: 99%

“…As the next step, the cracking of resulting molecules and deoxygenation occur simultaneously, by thermal effects. this process was widely studied and several reviews is available on literature ( Historically, the first works involving thermal cracking of renewable oil are from the beginning of the XX century, where the "universal Oil Products Company, Chicago us" reported the pyrolysis of cottonseed oil (Egloff & Morrell, 1932) and also of seal oil (Egloff & Nelson, 1933). The company objective was to find an alternative for petroleum fuel production.…”

Section: Thermal Processing (Pyrolysis)mentioning

confidence: 99%

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Biofuel production from thermocatalytic processing of vegetable oils: a review

Cassio

Ortiz-Bravo

Machado

2015

revfue

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With the worsening environmental problems caused by the greenhouse effect, the study of fuel alternatives generated by non-fossil sources has intensifi ed. The incorporation of biodiesel (mono-ester of triglycerides) to petroleum diesel is an example of commercial application for reduction in the emission of fossil CO 2 and sOx and nOx as well. in this context, the generation of mixture of hydrocarbons for catalytic cracking of vegetable oils combines the advantages of the Transesterifi cation process to generate compounds such as petroleum-derived fuels such as: gasoline, kerosene and diesel. This review presents current trends in scientifi c literature for biofuels from thermal (pyrolysis) and catalytic processing. For the pyrolysis it has been described the temperatures use to obtain the fuel in the diesel range. the catalytic processing involves the heterogeneous catalysts used in the processing crude oil and the conditions of temperature and pressure. in conclusion it is showed that the cracking catalytic process allows chose what fuel does one want simply changing the catalytic that is used.Keywords: Biofuels, Pyrolysis, Hydroprocessing, vegetable oils. Producción de biocombustibles por medio de los procesos termocatalíticos de aceites vegetales: una reseña resuMenCon el empeoramiento de los problemas ambientales causados por el efecto invernadero, el estudio de combustibles alternativos generados por fuentes so fósiles ha sido intensifi cado. La incorporación de biodiesel (mono-éster de triglicéridos) a diesel de petróleo es un ejemplo de una aplicación comercial para la reducción en la emisión de CO2 fósil, sOx al igual que nOx. en este contexto, la generación de mezclas de hidrocarburos para craqueo catalítico de aceites vegetales combina las ventajas de los procesos de Transesterifi cación para generar componentes como los combustibles derivados del petróleo, como: gasolina, kerosene y diesel. esta reseña presenta las tendencias actuales en la literatura científi ca para procesos térmicos (pirolisis) y catalíticos en los biocombustibles. Para la pirolisis se han descrito las temperaturas usadas para obtener el combustible en los rangos de diesel. Los procesos catalíticos implican los catalizadores heterogéneos usados en el procesamiento del crudo y las condiciones de presión y temperatura. en conclusión se muestra que el proceso de craqueo catalítico permite elegir que combustible puede buscarse simplemente cambiando la catálisis que es usada.

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“…A produção de "bio-gasolina" e "bio-querosene" a partir de óleos vegetais, como o de tungue e algodão, foi realizada [25][26][27] através da téc-nica de craqueamento térmico ou catalítico, sendo um procedimento completamente diferente da reação de transesterificação. A partir de então, uma série de inovações tem sido descritas em artigos e patentes com o objetivo de melhorar os processos de produção e de refino ou, ainda, de oferecer métodos alternativos à produção desses ésteres.…”

Section: Históricounclassified

Biodiesel: visão crítica do status atual e perspectivas na academia e na indústria

Dabdoub¹,

Bronzel²,

Rampin³

2009

Quím. Nova

104

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Recebido em 27/2/09; aceito em 31/3/09; publicado na web em 7/4/09 BioDiESEL: A CRiTiCAL oVERViEW oN THE CURRENT STATUS AND PERSPECTiVES AT THE ACADEmY AND iNDUSTRY. This article presents a bibliographic review of research carried out on different alternative processes for biodiesel production. The supercritical and subcritical (non catalytic) reaction conditions, the use of solid basic, solid acid and other heterogeneous catalysts, including the use of immobilized enzymes and whole-cell catalysts are also critically compared with the traditional homogeneous alkaline or acid catalysts that are common on industrial applications. Advantages and limitations of all these processes for the transference from the laboratory to the industry are discussed. A correlation of the chemical composition with the quality parameters of the produced biodiesel is done with aim to stablish adequate procedures for the right selection of the rawmaterial. Castor bean oil is used as an example of inappropriate oil in order to produce a B100 that fulfill all the international physicochemical quality standards. in this article are presented research results to adequate the values of viscosity, density and iodine number of the castor and soybean biodiesel to the international standard limits by means blending these both biodiesels at the right ratio.Keywords: transesterification; biodiesel; catalysts. introduÇãoAumento da demanda mundial por combustíveis líquidos, aquecimento global, segurança energética, vontade política por desenvolvimento nos campos agrícola, social e também energético são pontos que abrem novas áreas de interesse e oportunidades para pesquisas e desenvolvimento na Academia e na indústria, pois são as forças motoras responsáveis pelo renovado interesse na produção de biocombustíveis.Um dos grandes destaques da atualidade na área de biocombustí-veis é o interesse pelo uso de recursos naturais baseados em materiais lignocelulósicos 1-3 para a produção de etanol ou por fontes produtoras de lipídeos usados para a produção de biodiesel.Biodiesel é o nome dado a ésteres alquílicos de ácidos graxos desde que atendam certos parâmetros de qualidade. 4-8 Além de esses ésteres serem derivados de fontes biológicas como plantas e animais, atuam como combustível substituto ao diesel de petróleo, com desempenho muito próximo, não exigindo modificações nos motores. Tradicionalmente o biodiesel é produzido através das reações de transesterificação de triglicerídeos, usando geralmente catalisadores alcalinos, 9 ou da esterificação de ácidos graxos livres, sendo que neste último caso, os ácidos graxos livres (AGLs) são submetidos à reação direta com um álcool de 4 carbonos ou menos, na presença de catalisadores ácidos. 10-12 mais recentemente o uso de diversos catalisadores heterogêneos tem sido descrito na literatura. 13 Transesterificação é o processo de transformação de um éster carboxílico em outro, através da troca do grupo Ro -presente no éster original, por outro grupo semelhante proveniente de um álcool na presença de um catalisa...

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The Cracking of Cottonseed Oil

Cited by 20 publications

References 0 publications

Systematics of renewable olefins from thermal cracking of canola oil

Systematics of renewable olefins from thermal cracking of canola oil

Biofuel production from thermocatalytic processing of vegetable oils: a review

Biodiesel: visão crítica do status atual e perspectivas na academia e na indústria

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