| 萃取精馏法分离焦化苯中微量正庚烷精馏塔计算 |
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| 引用本文： | 郑英峨 姜华. 萃取精馏法分离焦化苯中微量正庚烷精馏塔计算[J]. 化学工程, 1995, 23(2): 49-54,61 |
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| 作者姓名： | 郑英峨 姜华 |
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| 摘 要： | 根据基础研究，提出以ＤＭＦ为溶剂从焦化苯中分离微量正庚烷的萃取精馏法，并采用三对角矩阵－２ＮＮｅｗｔｏｎ－Ｒａｐｈｓｏｎ联合法对萃取精馏进行了模拟计算，取得了萃取精馏塔、正庚烷回收塔及苯回收塔的操作条件，为分离焦化苯中微量正庚烷流程提供了依据。
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| 关 键 词： | 萃取精馏；苯；DMF（N，N－二甲基甲酰胺）；三对角矩阵法；正庚烷；2NNewton－Raphson法 |
Calculation of distillation tower for separatingmicroimpurity of n-heptane from coaling-benzeneby extractive distillation method |
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| Abstract: | he extractive distillation method with DMF as a solvent for separating impurity of n-heptanefrom coaling-benzene has been presented based on study on basic data,and the extractive distillationhas been calculated with tridiagonal matrix-2N Newton-Raphson method.The operation condition ofan extractive distillation tower and two conventional distillation towers for n-neptane and benzene re-seneration was obtained by the calculation,and this gave a basic information for separating the impuri-ty of n-heptane from coaling-benzene. |
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| Keywords: | extractive distillation benzene N N-dimethyiformamide.N-heptane.tridiagonal matrixmethed ZN Newton-Raphson method |
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