松轻油精馏分离工业试验  

Industrial Test on Rectification of Pine-stump Light Oil

作　　者：陈清松[1] 郑德勇[2] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350007 [2]福建农林大学材料工程学院,福建福州350002

出　　处：《福建师范大学学报（自然科学版）》2007年第1期50-53,共4页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省产学研联合开发基金资助项目

摘　　要：松轻油经碱液预处理后，用SM-250型工业孔板波纹填料塔（D=300mm、h=10．1m）以真空间歇精馏方式进行分离试验。分别得到富含蒎烯、莰烯、苧烯（双戊烯）度对-伞花烃、萜烯醇等组分的馏分．以精馏投料量为基准，α-蒎烯质量分数达80．1％以上的馏分得率为22．3％，其中α-蒎烯质量分数最高达86．1％；α-蒎烯与β-蒎烯总质量分数达61．3％以上、蒎烯和莰烯总质量分数达92．5％以上的馏分得率为31．8％；馏分中蒎烯和莰烯总质量分数最高达99．1％；苧烯（双戊烯）及对-伞花烃总质量分数达64．2％以上的馏分得率为23．1％，其总质量分数最高达76．4％；萜烯醇质量分教最高达49．0％，其馏分得率只有3．1％．精馏过程塔顶压力控制在12～4kPa范围，回漉比控制在1：1～8：1范围，塔釜终温为152℃左右；精馏过程塔釜温度容易控制．After pretreated with alkli the pine-stump light oil was rectified by packed with MeUapak SM -250 industrial column （D=300 mm, h= 10.1 m） under vacuum in batch process to obtain fractions rich in such components as pinenes, camphene, limonene （dipentene） as well as p-cymene, terpenols, respectively. The yield of fractions with a-pinene content over 80. 1 % was 22. 3 % of the pine-stump light oil pretreated and the highest a-pinene content in those fractions was 86.1%. The yield of fractions with a-pinene and β- pinene in total content over 61.3% as well as pinenes and camphene in total content over 92.5 % was 31.8% of that. The highest content of pinenes as well as camphene in fractions was 99.1%. The yield of fractions with limonene （dipentene） as well as p-cymene in total content over 64. 2 % was 23.1 % of that and the highest content was 76.4 %. The fraction with highest terpenols content （49.0 %） counted up to only 3.1 of that. In the process of rectification, the pressure of column top was between 12 kPa and 4 kPa, the reflux ratio was between 1 ： 1 and 8 ： 1, the end temperature of distillation still was about 152 ℃ and the temperature of distillation still could be easily controlled during rectification.

关 键 词：松轻油 真空精馏 蒎烯 莰烯 苧烯 

分 类 号：TQ351.472[化学工程]