Fast pyrolysis of soybean cake: Product yields and compositions

Uzun, Başak Burcu; Pütün, Ayşe Eren; Pütün, Ersan

doi:10.1016/j.biortech.2005.03.026

Cited by 163 publications

(79 citation statements)

References 12 publications

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“…The yield remained stable until the final pyrolysis temperature, 550 °C. The bio-oil product decreased at pyrolysis temperatures of 450 to 550 °C due to the decrease of the organic and specific products and secondary cracking of volatiles at temperatures above 500 °C [18]. Above this temperature, the bio-oil yield decreased with the conjunction of releasing more gas products due to secondary cracking [19].…”

Section: Pyrolysis Processmentioning

confidence: 99%

Characterization of Bio-Oil From Palm Kernel Shell Pyrolysis

Hamidin

Ali²,

Abidin³

et al. 2014

J MECH ENG SCI

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Pyrolysis of palm kernel shell in a fixed-bed reactor was studied in this paper. The objectives were to investigate the effect of pyrolysis temperature and particle size on the products yield and to characterize the bio-oil product. In order to get the optimum pyrolysis parameters on bio-oil yield, temperatures of 350, 400, 450, 500 and 550 °C and particle sizes of 212-300 µm, 300-600 µm, 600µm-1.18 mm and 1.18-2.36 mm under a heating rate of 50 °C min -1 were investigated. The maximum bio-oil yield was 38.40% at 450 °C with a heating rate of 50 °C min -1 and a nitrogen sweep gas flow rate of 50 ml min -1 . The bio-oil products were analysed by Fourier transform infra-red spectroscopy (FTIR) and gas chromatography-mass spectroscopy (GCMS). The FTIR analysis showed that the bio-oil was dominated by oxygenated species. The phenol, phenol, 2-methoxy-and furfural that were identified by GCMS analysis are highly suitable for extraction from the bio-oil as value-added chemicals. The highly oxygenated oils need to be upgraded in order to be used in other applications such as transportation fuels.

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Section: Pyrolysis Processmentioning

confidence: 99%

Characterization of Bio-Oil From Palm Kernel Shell Pyrolysis

Hamidin

Ali²,

Abidin³

et al. 2014

J MECH ENG SCI

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“…Uzun et al [19] investigated the effect of temperature, nitrogen flow rates, heating rates and particle sizes, influencing pyrolysis product yields from soybean cake. Ozcimen et al [14] pyrolysed rapeseed cake for bio-oil and bio-char and identified the various characteristics of bio-oil and bio-char acquired under static atmospheric conditions.…”

Section: Introductionmentioning

confidence: 99%

Bio-oils from Pyrolysis of Oil Palm Empty Fruit Bunches

Sukiran¹

2009

American Journal of Applied Sciences

100

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Problem Statement: The palm oil industry generates an abundance of oil palm biomass such as the mesocarp fibre, shell, empty fruit bunch (EFB), frond, trunk and palm oil mill effluent (POME). For 80 million tonnes of fresh fruit bunch (FFB) processed last year, the amount of oil palm biomass was more than 25 million tones. The objectives of this study were to: (i) Determine the effect of various pyrolysis parameters on product yields and (ii) Characterise liquid product obtained under different condition. Approach: In this study, pyrolysis of oil palm Empty Fruit Bunches (EFB) was investigated using quartz fluidized fixed bed reactor. The effects of pyrolysis temperatures, particle sizes and heating rates on the yield of the products were investigated. The temperature of pyrolysis and heating rate were varied in the range 300-700 °C and 10-100 °C min 1 respectively. The particle size was varied in the range of <90, 91-106, 107-125 and 126-250 µm. The elemental analysis and calorific value of the bio-oil were determined. The chemical composition of the oil was investigated using chromatographic and spectroscopic techniques. Results: Under the experimental conditions, the maximum bio-oil yield was 42.28% obtained at 500 ºC, with a heating rate of 100 ºC min

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“…Proximate analysis indicates that the main component in char is fixed carbon. It may be that during pyrolysis, hydrogen and oxygen were consumed via reactions of dehydrogenation and deoxygenation to produce CO 2 , CO, H 2 , H 2 O [23]. This should cause the decrease in the molar ratio of H/C and O/C in char.…”

Section: Pyrolysis In a Free-fall Reactormentioning

confidence: 99%

Product Characterization and Kinetics of Biomass Pyrolysis in a Three-Zone Free-Fall Reactor

Punsuwan

Tangsathitkulchai

2014

International Journal of Chemical Engineering

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Pyrolysis of biomass including palm shell, palm kernel, and cassava pulp residue was studied in a laboratory free-fall reactor with three separated hot zones. The effects of pyrolysis temperature (250-1050 ∘ C) and particle size (0.18-1.55 mm) on the distribution and properties of pyrolysis products were investigated. A higher pyrolysis temperature and smaller particle size increased the gas yield but decreased the char yield. Cassava pulp residue gave more volatiles and less char than those of palm kernel and palm shell. The derived solid product (char) gave a high calorific value of 29.87 MJ/kg and a reasonably high BET surface area of 200 m 2 /g. The biooil from palm shell is less attractive to use as a direct fuel, due to its high water contents, low calorific value, and high acidity. On gas composition, carbon monoxide was the dominant component in the gas product. A pyrolysis model for biomass pyrolysis in the free-fall reactor was developed, based on solving the proposed two-parallel reactions kinetic model and equations of particle motion, which gave excellent prediction of char yields for all biomass precursors under all pyrolysis conditions studied.

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Fast pyrolysis of soybean cake: Product yields and compositions

Cited by 163 publications

References 12 publications

Characterization of Bio-Oil From Palm Kernel Shell Pyrolysis

Characterization of Bio-Oil From Palm Kernel Shell Pyrolysis

Bio-oils from Pyrolysis of Oil Palm Empty Fruit Bunches

Product Characterization and Kinetics of Biomass Pyrolysis in a Three-Zone Free-Fall Reactor

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