A New Configuration for a Fully Thermally Coupled Distillation Column with a Postfractionator and Separated Main Columns
A New Configuration for a Fully Thermally Coupled Distillation Column with a Postfractionator and Separated Main Columns
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DOI：
10.1002/ceat.200600079
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发表时间：
2006-11
影响因子：
2.1
通讯作者：
Y. H. Kim
中科院分区：
文献类型：
--
作者：
Y. H. Kim
在全热耦合精馏塔(FTCDC)中安装后分馏塔显著提高了精馏塔的效率，但塔的操作比原来的FTCDC更困难。为改进操作，提出了一种改进的主塔分段后分馏塔结构，并通过对BTX精馏过程的HYSystems模拟对其性能进行了检验。通过为主塔的不同部分设置不同的压力，建议的蒸馏塔便于在不需要使用压缩机的情况下在各部分之间进行蒸汽传输。对塔的动态模拟结果表明，塔压力控制简单，BTX流程中三种产品的规格可单独控制，便于塔操作。
The installation of a postfractionator into a fully thermally coupled distillation column (FTCDC) significantly improves the distillation column efficiency, but the column operation is more difficult than for the original FTCDC. A modified configuration of the postfractionator FTCDC having sectionalized main columns is proposed for operational improvement, and its performance is examined through the HYSYS simulation of a BTX fractionation process. By setting different pressures for the various sections of the main columns, the proposed distillation column facilitates easy vapor transfer between the sections without the need to utilize compressors. The outcome of a dynamic simulation on the column shows that the control of the column pressure is easily undertaken and the specifications of three products in the BTX process can be separately controlled to facilitate ease of column operation.