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利用Aspen Plus研究了丙酮脱水缩合生成异丙叉丙酮的反应精馏工艺流程,首先对丙酮脱水缩合生成二丙酮醇和异丙叉丙酮的动力学进行实验研究,考察了反应温度对丙酮反应速率的影响,根据经验反应动力学模型,通过Matlab回归得到了动力学参数。将得到的动力学方程用Fortran语言编写并嵌入到Aspen Plus。分析了反应段理论板数、进料板位置、精馏段理论板数、提馏段理论板数等因素对丙酮转化率和异丙叉丙酮选择性的影响。优化后的催化反应精馏塔工艺,丙酮转化率达到99%,异丙叉丙酮选择性达到93%。
Abstract：The process of dehydration condensation of acetone was simulated with Aspen Plus. We conducted a series of experiments to obtain the reaction kinetics of acetone dehydration condensation for diacetone alcohol( DAA) and mesityl oxide( MSO). The effect of reaction temperature on reaction ratio was discussed. As a result,a reaction kinetic model was established. A user-supplied subroutine was compiled to the Aspen Plus. During the simulation process,the influences of the number of reaction sections,the feed stage,the number of rectification sections and the number of stripping sections were discussed.Under the optimized process conditions of the reactive distillation column,the conversion of acetone reaches to 99%,and the selectivity of MSO is up to 93%.
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基本信息:
DOI：10.13353/j.issn.1004.9533.20191507
中图分类号:TQ224.22;O643.36
引用信息:
[1]赵洁燕,蔡旺锋,王燕.丙酮缩合制备异丙叉丙酮的催化精馏模拟[J].化学工业与工程,2020,37(02):66-72.DOI:10.13353/j.issn.1004.9533.20191507.