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METHOD FOR SEPARATION OF ISOPHETIC-PENTAN-ISOHEXAN-HEXANE FRACTION, REDUCING THE SHARE OF RECYCLE FLOWS IN THE SYSTEM
METHOD FOR SEPARATION OF ISOPHETIC-PENTAN-ISOHEXAN-HEXANE FRACTION, REDUCING THE SHARE OF RECYCLE FLOWS IN THE SYSTEM
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机译:分离异戊烷-异戊烷-异己烷-己烷馏分的方法,减少系统中再循环流的份额
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摘要
FIELD: chemistry.;SUBSTANCE: invention relates to a process for separating iso-pentane, isohexane, hexane fraction, reducing the proportion of the recycle stream in the system is to allocate the commodity isomerate from the feed stream by sequentially passing the last column stabilization, deisopentanization column and deisohexanization column. The method is characterized in that the withdrawal of the side stream from column deizopentanization is performed in the stripping section; heating the stripping section of the column a residue using heat stabilization.;EFFECT: installation of the stripping section allows to improve the quality of fractionation by stripping off light isopentane components and to reduce the amount of recycle stream.;1 tbl, 1 dwg
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