Liquid fuel from castor seeds by pyrolysis

Singh, Ranjan K.; Shadangi, Krushna Prasad

doi:10.1016/j.fuel.2011.03.015

Cited by 118 publications

(32 citation statements)

References 27 publications

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“…After 450 o C a slow rate of weight loss occurred until 600 o C, the residue was around 16% of the initial sample mass due to ash and fixed carbon in biomass sample. This result is in agreement with previous studies [11,12] C: EFFECT OF TEMPERATURE ON PRODUCT YIELD Figure 2 shows that influence of temperatures on pyrolysis product yield of mahua seed. Pyrolysis temperature was selected according to the result of TGA analysis.…”

Section: A Proximate and Ultimate Analysis Of Mahua Seedsupporting

confidence: 93%

Bio-oil from biomass: Thermal pyrolysis of mahua seed

Pradhan

Singh

2013

2013 International Conference on Energy Efficient Technologies for Sustainability

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Energy crisis and environmental damage forces the desires to utilize biomass as the source of energy which can be an alternative solution for the replacement of fossil fuels. Thermal pyrolysis of mahua seed (Madhuca indica) was studied in semibatch reactor at different pyrolysis temperatures. The effects of temperatures on product yield and composition of product were investigated. The maximum oil yield of (59.95%) was obtained at an optimum pyrolysis temperature of 525 o C. The results showed that the obtained oil can be used as an alternative fuel.

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Section: A Proximate and Ultimate Analysis Of Mahua Seedsupporting

confidence: 93%

Bio-oil from biomass: Thermal pyrolysis of mahua seed

Pradhan

Singh

2013

2013 International Conference on Energy Efficient Technologies for Sustainability

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“…Proximate analysis showed that biomass has a high percentage of volatile material, which is typical of this kind of materials (Ioannidou & Zabaniotou, 2007;Saldarriaga et al, 2015), due to the breaking of the chemical bonds of cellulose, hemicellulose, lignin and fatty acids present in the biomass. CO, CO 2 , CH 4 and a variety of volatile compounds such as alcohols, acids, phenols, among others are generated (Huber et al, 2006;Singh & Shadangi, 2011). …”

Section: Resultsmentioning

confidence: 99%

“…The ash content, which can vary depending on the type of biomass and soil conditions where it is grown, is integral to the plants and involves a wide range of minerals such as calcium, potassium, silicon and magnesium, which are part of biomass structure (Singh & Shadangi, 2011). Fresh biomass, char, P-AC and C-AC were analyzed by X-ray fluorescence.…”

Section: Resultsmentioning

confidence: 99%

HDO del guaiacol mediante el uso de catalizadores NiMo soportados sobre carbón activado obtenido a partir de la torta de higuerilla

Ospina¹,

Buitrago‐Sierra²,

López³

2015

ing.inv.

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Physical and chemical activation methods were used to prepare two different activated carbons (ACs) from castor de-oiled cake. H 2 O/CO 2 mixture was used as the physical activating agent, and for chemical activation potassium carbonate (K 2 CO 3 ) was used. For both materials, textural and chemical properties were characterized by N 2 adsorption-desorption isotherms, thermogravimetric analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR), thermal programmed reduction (TPR), X-ray fluorescence (XRF), and scanning electron microscopy (SEM). The ACs were used as supports for NiMo sulfide catalysts, which were prepared by wetness impregnation and in-situ sulfided for the hydrodeoxygenation (HDO) of guaiacol (GUA) as a model compound of bio-oil. The HDO reaction was carried out in a typical batch reactor at 5 MPa of H 2 and 350 °C. Under the same test conditions, commercial catalysts were also tested in the reaction. Although the commercial catalysts displayed higher GUA conversion, the prepared catalysts showed higher activity and non-oxygenated and saturated products yield.Keywords: Castor de-oiled cake, activated carbon, hydrodeoxygenation, bio-oils. RESUMENSe prepararon dos carbones activados a partir de la torta de higuerilla; como métodos para su obtención se usaron la activación física y la activación química. Para la activación física se usó una mezcla H 2 O/CO 2 como agente activante, y para la activación química, K 2 CO 3 . Las propiedades químicas y texturales de ambos carbones activados fueron caracterizados por isotermas de adsorción-desorción de N 2 , análisis termogravimétrico (TGA), espectroscopia infrarroja (FT-IR), reducción a temperatura programada (TPR), fluorescencia de rayos X (XRF) y microscopía electrónica de barrido (SEM). Los carbones activados se usaron como soporte en catalizadores NiMo sulfurados, los cuales fueron preparados por impregnación húmeda y reducidos in-situ para la reacción de hidrodesoxigenación del guaiacol (GUA), compuesto modelo de los aceites de pirólisis. La reacción de hidrodesoxigenación (HDO) se realizó en un reactor tipo batch a 5 MPa de H 2 y 350 °C. Con el fin de comparar, los catalizadores comerciales también se probaron en reacción. A pesar de que los catalizadores comerciales mostraron una mayor conversión de GUA, los catalizadores sintetizados exhibieron una mayor actividad y un mayor rendimiento en la producción de compuestos saturados y no oxigenados.Palabras clave: Torta de higuerilla, carbón activado, hidrodesoxigenación, bioaceites.

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“…In addition, at higher temperature of 500 o C, all the three primary reactions occurred which were dehydration, depolymerization and a certain degree of fragmentation reactions of the biomass components. [18], [19] and [20] reported that the optimum pyrolysis temperature of 500 o C but [21] and [22] reported a slightly higher pyrolysis temperature of 550 o C as the optimum pyrolysis temperature. The difference in the optimum pyrolysis temperature depended on several factors which among them was the pyrolysis temperature.…”

Section: Resultsmentioning

confidence: 99%

Optimization of the pyrolysis process of empty fruit bunch (EFB) in a fixed-bed reactor through a central composite design (CCD)

Mohamed

Hamzah

Daud

2014

AIP Conference Proceedings

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Abstract. The production of crude palm oil from the processing of palm fresh fruit bunches in the palm oil mills in Malaysia hs resulted in a huge quantity of empty fruit bunch (EFB) accumulated. The EFB was used as a feedstock in the pyrolysis process using a fixed-bed reactor in the present study. The optimization of process parameters such as pyrolysis temperature (factor A), biomass particle size (factor B) and holding time (factor C) were investigated through Central Composite Design (CCD) using Stat-Ease Design Expert software version 7 with bio-oil yield considered as the response. Twenty experimental runs were conducted. The results were completely analyzed by Analysis of Variance (ANOVA). The model was statistically significant. All factors studied were significant with p-values < 0.05. The pyrolysis temperature (factor A) was considered as the most significant parameter because its F-value of 116.29 was the highest. The value of R 2 was 0.9564 which indicated that the selected factors and its levels showed high correlation to the production of bio-oil from EFB pyrolysis process. A quadratic model equation was developed and employed to predict the highest theoretical bio-oil yield. The maximum bio-oil yield of 46.2 % was achieved at pyrolysis temperature of 442.15 o C using the EFB particle size of 866 μm which corresponded to the EFB particle size in the range of 710-1000 μm and holding time of 483 seconds.

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Liquid fuel from castor seeds by pyrolysis

Cited by 118 publications

References 27 publications

Bio-oil from biomass: Thermal pyrolysis of mahua seed

Bio-oil from biomass: Thermal pyrolysis of mahua seed

HDO del guaiacol mediante el uso de catalizadores NiMo soportados sobre carbón activado obtenido a partir de la torta de higuerilla

Optimization of the pyrolysis process of empty fruit bunch (EFB) in a fixed-bed reactor through a central composite design (CCD)

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