宽沸程物系分离过程的热集成Heat Integration of Separation Process for Mixture with Wide Boiling-Range
李玉刚,李春欣,张伟,罗代晏,郑世清
摘要(Abstract):
针对宽沸程物系分离的特点,研究了热集成以及综合的方法。将浓度从进料到产品分段,每段对应一个精馏塔操作,通过调整各塔的出料浓度、操作压力,实现各塔间的热集成。以年度费用为目标,给出了各塔的分离浓度、操作压力、设备尺寸及热集成方案的编码方法,利用模拟退火算法进行优化,得到年度费用最低的工艺流程。与单塔分离相比,能显著地降低所求问题的操作费用,但随着段数的增加,这种降低的速度变缓。应用结果表明,这种分段集成的方法能够方便地实现所求问题的描述与建模,模拟退火算法能够实现模型的求解。
关键词(KeyWords): 分离过程;模拟退火;蒸发;热集成
基金项目(Foundation):
作者(Author): 李玉刚,李春欣,张伟,罗代晏,郑世清
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