摘要
前文[1]用数模计算开发了一个三塔精馏流程,可不用溶剂得到聚合级异戊二烯。本文用小型筛板塔验证这一计算过程的实际可行性。包括间戊二烯分离的计算与验证,1474个常量组分实测值与计算值的平均偏差为O.62%,78个微量组分为64ppm,130个温度点为1.1℃。证实数模计算本身及所采用的汽液平衡及基础物性数据是可靠的。小型聚合试验证实,产品异戊二烯和正戊烷的混合物适合作稀土催化剂的聚合单体,可聚合得到橡胶。
In the preceeding paper a three-column(i. e. light fraction removal column, heavy fraction pre-removal column and heavy fraction removal column) flow diagram producing polymerization grade isoprene without using solvent was developed on the basis of mathematical modelling. In this paper, tests on a small sieve-plate column to verify the reliability of the modelling method is presented. The average deviations of calculated values from experimental results(including those for seperation of piperylene) are 0.62% for 1474 data of normal components, 64 ppm for 78 data of micro-components and 1.1℃ for 130 temperature data. These results show that the modelling method used and the vaporliquid equilibrium data as well as the basic physical constants used for modelling are reliable.The three-column flow diagram can be extended to five-column flow diagram for the isolation of piperylene fraction containing more than 75% piperylene and 20-25% cyclopentene.Good polymer was obtained using product from the verification test and the rare earth catalyst.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1990年第3期253-260,共8页
Journal of Fuel Chemistry and Technology
关键词
异戊二烯
间戊二烯
精馏
碳五馏分
isoprene
piperylene
mathematical modelling
distillation
C_5 fraction
