摘 要
轻烃分离是依据各组分的相对挥发度以及物理性质的不同而进行的。通过精馏和分馏为化学反应提供符合质量要求的原料，清除对反应或催化剂有害的杂质，减少副反应和提高效率，并且对反应产物有分离提纯的作用，以得到合格的高质量产品，并使未反应的反应物得以循环利用。
本装置通过分离丁烷、异戊烷、正戊烷、环戊烷、2,3-二甲基丁烷、2-甲基戊烷、正己烷而得到液化气和正戊烷发泡剂。开发新型的轻烃分离装置以及改善设计，对提高生产效益具有重要的意义。
此设计包括工艺流程设计和物料衡算、能量衡算、设备计算及选型以及换热器的选型。设计共包含三个精馏塔，前两个精馏塔选择的是板式塔，第三个精馏塔选择的是填料塔。通过以上计算与选型得出了比较理想的工艺流程及设备选用。
关键词：轻烃分离；液化气；正戊烷发泡剂；工艺流程
ABSTRACT
Light hydrocarbon separation based on component relative volatility and physical properties of the difference. Through the distillation and fractionation offer to meet the quality requirements of raw materials for the chemical reaction, removal of impurities harmful to the reaction or catalyst, reduce side effects and improve the efficiency of separation and purification, and the role of the reaction products, in order to obtain the high quality product quality, and the unreacted reactant to recycle.
The device through the separation of propane, isobutane, n-butane, n-pentane, isopentane, cyclopentane, hexane and liquefied gas and pentane foaming agent. Light hydrocarbon separation device and improve the design and development of a new, has important significance to improve production efficiency.
This design includes the design of process flow and material balance, energy balance, equipment selection and calculation of heat exchanger selection. The design consists of three column, two column selection is the type of column, third column is the choice of packing tower. Through the above calculation and selection of the process and equipment ideal selection.
Keywords: Light hydrocarbon separation; Liquefied petroleum gas; Pentane foaming agent; Process
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