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Study on production process of high value-added isohexane
Author(s): 
Pages: 4-7
Year: Issue:  7
Journal: Petroleum Refinery Engineering

Keyword:  isohexanehydrofiningrectificationsoftware simulation;
Abstract: 以重整抽余油为原料,经加氢精制脱除烯烃、芳烃后,再经蒸馏切取适宜馏分,可获得纯度不低于95%,且符合质量要求的异己烷产品,研究设计的工艺技术路线具有经济性和可行性.在实验室制备出一种NiO质量分数为30% ~35%的高活性镍系催化剂,用于重整抽余油加氢精制,其加氢产品溴指数不大于5.0 mgBr/(100 g),苯质量分数不大于0.001%,加氢产品在理论塔板数为24块的精密蒸馏装置上分馏精密切割,采用多个小瓶,每0.5℃为一个馏分段,收集塔顶馏出产品,得到馏程为60.0~62.5℃的高纯度异己烷.在工业生产装置上分离高纯度窄馏分的异己烷产品是可以实现的,副产异己烷方案用于芳烃抽提车间加工抽余油,可实现挖潜增效.
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