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Hydroxypropanone was selected as the model compound of bio-oil ketones to study its cracking behavior for bio-gasoline production. The cracking of pure hydroxypropanone generated inferior oil phase which had a content of high oxygenated compounds. The quality of oil phase was obviously improved when ethanol was adopted as the co-reactant. Furthermore, increasing cracking pressure also benefited the...
The effects of reaction conditions, including the initial hydrogen pressures (0.5MPa, 2.0MPa), the mass ratios of ethanol to bio-oil (5:1, 3:1, 2:1, 1:1) and reaction temperatures (260°C, 280°C, 300°C) on catalytic upgrading of fast pyrolysis bio-oil were investigated in this work. Experiments were carried out in supercritical ethanol with bifunctional 5%Pt/SO42-/ZrO2/SBA-15 catalyst. The physical...
The upgrading of bio-oil from fast pyrolysis of pinus sylvestris were carried out in supercritical ethanol under hydrogen atmosphere using bifunctional catalyst Pt/SO42-/ZrO2/SBA-15. Reduced pressure distillation was firstly applied to remove the water. The liquid products were analyzed by gas chromatography-mass spectroscopy (GC-MS). The results showed that all acids and aldehydes in the bio-oil...
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