Pyrolysis–GC/MS studies of vegetable oils from Macauba fruit

Fortes, Isabel C. P.; Baugh, P. J.

doi:10.1016/j.jaap.2004.03.005

Cited by 67 publications

(23 citation statements)

References 18 publications

(51 reference statements)

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“…Cracking without a catalyst leads to a large family of deoxygenated liquid organic compounds, such as alkenes and alkanes, together with oxygenated compounds, such as carboxylic acids, ketones, aldehydes and alcohols. [14][15][16][17] When using catalysts, the degree of deoxygenation is generally enhanced. 18 In such cases, the C number in the products is not always lower than the C number of the original feed.…”

Section: Introductionmentioning

confidence: 99%

Flash Pyrolysis of Oleic Acid as a Model Compound Adsorbed on Supported Nickel Catalysts for Biofuel Production

Fréty¹,

Santos²,

Sales³

et al. 2014

Journal of the Brazilian Chemical Society

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A pirólise rápida do ácido oleico foi estudada sobre catalisadores com 10% Ni suportados em sílica e alumina. Os catalisadores foram impregnados com 10% m/m de ácido oleico. Os precursores secos e os catalisadores contendo ácido oleico foram caracterizados por análise termogravimétrica. Os catalisadores calcinados foram analisados por difração de raios X (XRD) e redução à temperatura programada (TPR). As amostras com ácido oleico adsorvido foram submetidos à pirólise rápida a 650 °C. A pirólise de ácido oleico puro levou a 10% de conversão, enquanto a pirólise catalítica resultou em praticamente completa conversão. O catalisador NiO/alumina produziu mais hidrocarbonetos do que o NiO/sílica. Os principais produtos obtidos com NiO/sílica foram 1-alcenos, enquanto que os principais produtos obtidos com NiO/alumina foram isômeros de alcenos e aromáticos, e pequenas quantidades de compostos oxigenados, principalmente álcoois. A pirólise rápida de ácido oleico adsorvido em catalisadoras representa um método útil para distinguir as propriedades dos catalisadores e suas diferentes atividades.Flash pyrolysis of oleic acid was studied over 10 wt.% nickel catalysts supported on silica and alumina. The catalysts were impregnated with 10 wt.% oleic acid. The dried precursors and the catalysts containing oleic acid were characterized by thermogravimetric analysis. The calcined catalysts were analyzed by X-ray diffraction (XRD) and temperature programmed reduction (TPR). Samples containing adsorbed oleic acid were submitted to flash pyrolysis up to 650 °C. Whereas pyrolysis of oleic acid without catalyst converted only about 10%, the pyrolysis of oleic acid adsorbed on catalysts allowed practically a complete conversion. NiO/alumina yielded a higher amount of liquid hydrocarbons than NiO/silica. The main products obtained with NiO/silica were 1-alkenes, whereas the main products obtained with NiO/alumina were alkene isomers and aromatics. Small amounts of oxygenated compounds were also observed, principally alcohols. The flash pyrolysis of oleic acid adsorbed on different catalyst surfaces appears as a useful way to distinguish activity trends of different catalyst samples.

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Section: Introductionmentioning

confidence: 99%

Flash Pyrolysis of Oleic Acid as a Model Compound Adsorbed on Supported Nickel Catalysts for Biofuel Production

Fréty¹,

Santos²,

Sales³

et al. 2014

Journal of the Brazilian Chemical Society

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“…Biofuels which can be used as fuel or fuel additives have recently become more attractive because of their environmental benefits and the uncertainties concerning petroleum availability [1][2][3][4][5]. Among the different possible renewable raw materials, extractive-based glycerides (i.e., esters of fatty acids with glycerol) in plants present one source for producing hydrocarbon-rich products resembling petroleum [6,7].…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of vegetable oil soaps—Palm, olive, rapeseed and castor oils

Lappi

Alén

2011

Journal of Analytical and Applied Pyrolysis

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“…Industrial and engine waste oils [14], wood pyrolysis oils [15], fresh and waste fats and vegetable oils [16] have been proposed as pyrolysis raw material to produce gasoline and diesel-like fuels. There is plenty of the waste engine oil in the world.…”

Section: Introductionmentioning

confidence: 99%