学术
棕榈油制备生物柴油研究
李为民[1] 许汉祥[2] 高琦[2]
[1]江苏工业学院化工系,江苏常州213164 [2]江苏高科石化股份有限公司,江苏宜兴214244
摘 要:
通过利用浓硫酸作催化剂对酸值较高的棕榈油进行预酯化，采用正交实验的方法来研究预酯化的最优工艺条件，预酯化反应温度为70℃，反应时间为1．0h，催化剂H2SO4的用量为1．0％（油重），棕桐油的酸值降到2，4mg KOH／g油。预酯化后的棕榈油与甲醇在氢氧化钾作为催化剂进行酯交换反应得到脂肪酸甲酯，采用正交实验的方法来研究酯交换反应的最优工艺条件，酯交换反应温度为60℃，反应时间为10h，催化剂KOH的用量为1．0％（油重），酯交换反应的转化率为95．89％，生物柴油总得率为95．6％。以棕榈油为原料制备的生物柴油，其主要性能符合柴油标准，但倾点较高，需与柴油馏分调合或加降凝剂以达到柴油标准。[著者文摘]
文章出处:
《化工时刊》-2006年20卷12期,36 -20-22,36页
栏目信息:
分 类 号:
Biodiesel Fuel Preparation for Plam Oil
Li Weimin ,Xu Hanxiang, Gao Qi （Department of Chemical Engineering, Jiangsu Polytechnic University, Jiangsu Changzhou 213164; Jiangsu Gaoke Petrochemical CO. ,LTD, Jiangsu Yixing 214244）
Abstract:
The pretreatment of esterificafion to plam oil that had high acid value was carried out by using sulfuric acid as catalyst. Through orthogonal analysis,the optimum reaction conditions obtained for the esterification were set at temperature 70℃, reaction time 3 hours, ratio of concentrated sulfuric acid to plam oil 1.0% （on plam oil mass ） and the acid value of plato oil was 2.4 mg KOH/g. The transesterification of the treated plam oil and methanol was carried out by using sodium hydroxide to produce fatty methyl ester. Through orthogonal analysis, the optimum reacting conditions obtained for the transesterification were set at temperature 60 ℃, reaction time 1 hours, and catalyst dosage 1.0 % （on plain oil mass ）. The conversion of tran sterification was 95.89 %, and the yield of biodiesel fuel was 95.6 %. The principal physicochemical properties of the biodiesel fuel from palm oil were similar to that of diesel fuel. But the pour point was higher. So the biodiesel fuel should be blended with diesel or added pour point depressants.[著者文摘]
Key words:
the pretreatment of esterification transesterification biodiesel fuel plam oil
基金资助:
江苏省高技术研究资助项目（CB2005325）
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