玉米秸秆在乙醇/水混合溶剂中液化制生物油的研究

doi:10.3969/j.issn.1673-5854.2018.02.005

Abstract

Abstract: The effect of temperature(180-340℃) on the ethanol steam reforming(ESR) with NiMoS/Al₂O₃ as catalyst was investigated in batch-type autoclave. The behavior of corn stover liquefaction in the ethanol-water co-solvent was studied. Results showed that the ESR occurred as the temperature increased to 320℃ with NiMoS/Al₂O₃, accompanied with the formation of CO, CO₂, CH₄, H₂ and C_nH_m, of which the H₂ yield was the highest(47 mmol). When the temperature was further increased to 340℃, the H₂ yield remarkably increased to 122 mmol. Compared to the non-catalytic runs, the yield and heating value(Q_HHV)of bio-oil obtained from corn stover liquefaction at 340℃ with NiMoS/Al₂O₃ as catalyst increased from 21.26% and 32.14 MJ/kg to 29.57% and 33.89 MJ/kg, respectively. GC-MS results showed that the main components of the bio-oil were phenolics, esters and ketones, and the phenolics content decreased by 23% after adding the catalyst, which was beneficial to increase the stability of bio-oil.

Key words: corn stover, co-solvent, liquefaction, bio-oil

CLC Number:

TK6
TQ35

LI Mingyang, SUN Jiajun, LI Lintong, HUANG Jinwen, HAO Chaozhi, LI Bingshuo, YANG Tianhua. Liquefaction of Corn Stover in Ethanol/Water Co-solvent for Bio-oil Production[J]. bce, 2018, 52(2): 23-28.

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Liquefaction of Corn Stover in Ethanol/Water Co-solvent for Bio-oil Production

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