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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