CAJ | 학술논문

以地沟油和橡胶籽油为原料，制备相应生物柴油，测定其物化性能指标，地沟油生物柴油与橡胶籽油生物柴油的凝点与冷滤点分别是3℃、-1℃和6℃、2℃，40℃时运动粘度分别为5．78 mm2/s和5．0 mm2/s，其低温流动性能较差，严重影响了生物柴油使用和发展．考察了降凝剂I和降凝剂II对地沟油生物柴油与橡胶籽油生物柴油的低温流动性能，采用与低温流动特性较好的0＃柴油调合混配可改进生物柴油低温流动特性，使生物柴油的凝点、冷滤点和运动粘度都能很好地得到改进．添加带有支链的油酸异丙酯可以很好地改进生物柴油的低温性能，但会使生物柴油运动粘度升高，选取适当的调合比例可以很好地改进生物柴油的低温流动性能．
이지구유화상효자유위원료，제비상응생물시유，측정기물화성능지표，지구유생물시유여상효자유생물시유적응점여랭려점분별시3℃、-1℃화6℃、2℃，40℃시운동점도분별위5．78 mm2/s화5．0 mm2/s，기저온류동성능교차，엄중영향료생물시유사용화발전．고찰료강응제I화강응제II대지구유생물시유여상효자유생물시유적저온류동성능，채용여저온류동특성교호적0＃시유조합혼배가개진생물시유저온류동특성，사생물시유적응점、랭려점화운동점도도능흔호지득도개진．첨가대유지련적유산이병지가이흔호지개진생물시유적저온성능，단회사생물시유운동점도승고，선취괄당적조합비례가이흔호지개진생물시유적저온류동성능．
Ditch oil and rubber see d oil are used as raw material to prepare correspondingbiodiesel,whose physi-cal and chemical performance index are then measured.The solidifying point and cold filter plugging point of ditch oil biodiesel is 3℃and 6℃.The solidifying point and cold filter plugging point of rubber seed oil biodiesel is-1℃ and 2℃.The kinematic viscosity at 40℃ is 5.78mm2/s and 5.0mm2/s.Their poor low temperature fluidity seriously has significant negative influence on the usage and development of biodiesel.Based on the per-formance of pour point depressant I and pour point depressant II to the low temperature fluidity of ditch oil biodiesel and rubber seed oil biodiesel,the low temperature fluidity of biodiesel is improved when mixed with 0#diesel oil whose low temperature fluidity is better,making the solidifying point,cold filter plugging point and ki-nematic viscosity of biodiesel improve greatly.Blending oleic acid isopropyl ester with branched chain can im-prove the low temperature fluidity of biodiesel greatly while making kinematic viscosity of biodiesel rise.Choosing proper blending ratio can improve the low temperature fluidity of biodiesel effectively.