Heat-Integrated Pressure-Swing-Distillation Process for Separation of Tetrahydrofuran/Methanol with Different Feed Compositions
Heat-Integrated Pressure-Swing-Distillation Process for Separation of Tetrahydrofuran/Methanol with Different Feed Compositions
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DOI：
10.1021/ie500235f
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发表时间：
2014-04
影响因子：
4.2
通讯作者：
Yinglong Wang;Peizhe Cui;Zhen Zhang
中科院分区：
文献类型：
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作者：
Yinglong Wang;Peizhe Cui;Zhen Zhang
根据四氢呋喃和甲醇二元共沸混合物的压敏特性，对变压精馏分离工艺进行了优化。根据顺序迭代优化程序，在Aspen Plus上实现了严格的稳态模拟，该模拟基于部分和完全热集成压力-摆动蒸馏过程的年总成本最小化。两塔在变压精馏过程中可行的高压和低压顺序以及合适的热集成方案都是由进料组成决定的。
A process optimization is carried out to separate binary azeotropic mixtures of tetrahydrofuran and methanol by pressure-swing distillation according to the pressure-sensitive property of the binary system. Rigorous steady-state simulation that is based on the minimization of the total annual cost for partially and fully heat-integrated pressure-swing-distillation processes is implemented on Aspen Plus following the sequential iterative optimization procedure. The feasible sequence of high pressure and low pressure of two columns in the pressure-swing-distillation process and the suitable heat integration scheme are both determined by the feed composition.