改进棉籽油生物柴油低温流动性的研究.pdf

石油化
PETROCHEMICAL TECHNOLOGY
2014年第43卷第4期
改进棉籽油生物柴油低温流动性的硏究
吕翠英!,陈秀,来永斌2,呼嘉敏,金鑫,张玉琦
(1.安微理工大学化学工程学院,安徽淮南232001;2.安徽理工大学机械配程学院,安徽淮南232001)
摘要]采用气-质联用仪、冷滤点测试仪和运动黏度测试仪对棉籽油生物柴油(CSME)的组分和低温流动性能进行研究,考
察了CSME与-10号柴油(-10PD)调合和添加柴油防冻剂两种方法对改进CSME低温流动性能的作用。实验结果表明,CSME
主要组分为饱和脂肪酸甲酯和不饱和脂肪酸甲酯,其含量分别为27.69%(w)和71.65%(w);CSME的冷滤点为-1℃、运动黏
度(40℃)为463m2s;CSME与-1PD调合,当CSME加入量为40%(q)时CSME/-1OPD调合油的冷滤点最低,达到-12℃:
柴油防冻剂添加量不超过3%(ρ)时,CSME加人量()为5%,7%,10%,50%的CSME/-10PD调合油及CSME的冷滤点分别
从-8,-8,-9,-11,-1℃降至-27,-28,-26,-16,-5℃。
[关键词]棉籽油;生物柴油;低温流动性;冷滤点
文章编号]1000-8144(2014)04-0420-05
中图分类号]TQS17
[文献标志码A
Improvement of Cold Flow Property of Biodiesel Derived from Cottonseed Oil
Li Cuiying, Chen Xiu, Lai Yongbin, Hu Jiamin, Jin in, Zhang Yuqi
(1. School of Chemical Engineering, Anhui University of Science&Technology, Huainan Anhui 232001, Chi
2. School of Mechanical Engineering, Anhui University of Science &Technology, Huainan Anhui 232001. China
I Abstract J The cold flow property of cottonseed oil methyl ester(CSME )was studied by means of
GC-MS, cold filer plugging point tester and viscosity ester. The cold flow property of CSME was
improved through blending it with -10 diesel(-10pd )and adding diesel antifreezer(Flow Fit). It was
showed that CSME was mainly composed of fatty acid methyl esters, and the contents of saturated and
unsaturated fatty acid methyl esters in CSME were 27.69%(w)and 71.65%(w), respectively. The cold
filter plugging point(CFPP) of CSME is-1 C, and its kinematic viscosity at C is 4.63 mm/. The
CFPP of CSME can be reduced to-12 C by the blending With the fall of temperature, the viscosities
of both CSME and the blended oils increased. By adding less than 3%( )of Flow Fit, the CFPPS of
the blended oils with the CSME contents of 5%, 7%, 10%, 50%()and CSME were decreased from
8,-8,-9,-11,-1Cto-27,-28,-26,-16,-5C, respectively
Keywords cotton seed oil; biodiesel; cold flow property; cold filter plugging point
我国是世界产棉大国之一,2012年棉花总量受关注。研究发现生物柴油的低温流动性主要取决
高达6.840Mt。在棉花种植过程中由于农药的使用于生物柴油中脂肪酸甲酯的种类和含量,生物柴油
及转基因棉的大量种植,使棉将油食用存在一定风的冷滤点(CFP)随饱和脂肪酸甲酯( SFAME)含量
险,用其制备生物柴油是一种新的应用途径叫,这和链长的增加而增大23;改善生物柴油低温流动
也缓解了生物柴油原料供应问题。由于棉籽油生物性的方法主要有:支链醇制备生物柴油、催化改
柴油(CSME)低温易结晶,制约了其在低温条件
下的应用,因此研究和改善CSME的低温流动性对[收稿日期!2013-10-29;[修改稿日期]2013-12-28。
其在寒冷地区的应用提供一定的理论依据和技术
作者简介]」吕翠英(1987ー),女,河北省石家庄市人,硕土生,
支持。
电话1580549663,电邮Ivcuiying408@163.com。联系人:陈
秀,电话0554-688584,电邮chenxiuhn@163.com
目前研究生物柴油低温流动性能的影响因素[基金项目]国家自然科学基金项目(510609);安微省自然科
及内在规律,并寻求改进其低温流动性能的方法备学基金资助项目(1408085ME109)。