玉米废弃油脂热裂解制备液体燃油的研究

doi:10.3969/j.issn.1673-5854.2014.04.003

Abstract

Abstract: Using corn waste oil as raw material, thermal cracking reaction was performed. The analysis of the reaction and its product showed that the yield of liquid fuel rised with the increase of pyrolysis temperature. The yield could reach 81.3% when the pyrolysis temperature was 520℃. Moisture content and viscosity decreased significantly after cracking. Moisture content decreased from 1.8% to 0.5%, and viscosity decreased from 88.16 mm²/s to 7.46 mm²/s. Meanwhile, calorific value increased from 38.6 MJ/kg to 40.6 MJ/kg. The acid value of product rised to 144 mg/g compared with 65 mg/g of the raw material. The analysis of GC-MS and IR indicated that the liquid fuel mainly contained carboxylic acid and paraffin. The carboxylic acid content was 74%, and the hydrocarbon content was 21%. GC analysis showed that the gas produced in the thermal cracking mainly contained hydrocarbons, CO₂ and CO. The total content of combustible gas was 80.78%. In addition, the mechanism of thermal chemical conversion process was analyzed.

Key words: corn waste oil, thermal cracking, liquid fuels

CLC Number:

TQ35

XIA Hai-hong, JIANG Jian-chun, XU Jun-ming, LI Jing, LIU Peng. Study on Liquid Fuels from Corn Waste Oil by Thermal Chemical Conversion[J]. bce, 2014, 48(4): 13-17.

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Study on Liquid Fuels from Corn Waste Oil by Thermal Chemical Conversion

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