乌桕油皂微波催化快速裂解制备可再生燃油研究

摘要

Preparation of renewable fuel was studied with saponificated China tallow seed oil and stillingia oil as raw materials using microwave pyrolysis. The effects of reaction power and temperature on the yield of pyrolysis products were investigated. The optimum conditions were obtained as pyrolysis power 700 W, pyrolysis temperature 450 ℃. The corresponding liquid yields were 75. 26% and 77. 01% for microwave pyrolysis oil from saponificated China tallow seed oil and stillingia oil, respectively. The GC-MS analysis indicated that the main components of the product were C8-C18 alkanes, alkenes, ring-containing alkanes and aromatic hydrocarbon. Pyrolysis oil properties were also determined. The results indicated that the pyrolysis oil from saponificated China tallow seed oil had higher heat value, lower density and viscosity with the comparation of pyrolysis oil from saponificated China tallow stillingia oil, which was similar to 0# diesel. Freezing point and cold filter plugging point of the pyrolytic products have good low temperature fluidity, which are better than those of the biodiesel.%采用微波催化快速裂解技术,以乌桕木油皂和乌桕梓油皂为原料,利用其强极性羧基端吸收微波迅速的特点,研究了其制备可再生燃油的技术。考察了裂解功率、裂解温度对裂解产物得率的影响。结果表明：裂解功率700 W,裂解温度450℃,乌桕木油皂和乌桕梓油皂微波裂解液体燃料的得率分别为75.26%和77.01%, GC-MS分析表明,产物的主要成分为C8~C18的正构烷烃、烯烃、环烷烃以及芳香烃等烃类化合物。产物的部分燃料油性能测定结果表明,乌桕木油皂裂解燃油比乌桕梓油皂裂解燃油热值略高,密度和运动黏度略低,基本符合0#柴油的标准,冷凝点和冷滤点均优于生物柴油,低温流动性好。