CAJ | 학술논문

利用 Aspen Plus 软件，对 Petlyuk 塔进行模拟和优化。采用三塔等效流程，进行简捷计算，确定 Petlyuk 塔的初始参数。在初始参数下，利用 Aspen Plus 的 Multifrac-Petlyuk 模块严格模拟，并利用 Sensitivity 模块，分别优化回流比 R、进料位置、侧线出料位置、互连位置及互连物流流量等参数。以乙醇-正丙醇-正丁醇三元体系为例，模拟和优化结果为：主塔塔板数58，预分塔塔板数29，进料在预分塔第12块板，侧线出料在主塔第28块板，主塔摩尔回流比4.6，预分塔塔顶和主塔互连位置在主塔第18块板，塔底和主塔互连位置在第47块板，主塔返回预分塔顶部的液相流量为65 kmol/hr，返回预分塔底部的气相流量为145 kmol/hr。在此优化参数下，可得到98.9%乙醇、98.7%正丙醇和99.0%正丁醇，达到分离要求。模拟和优化的结果对工业化设计和生产具备指导意义。
이용 Aspen Plus 연건，대 Petlyuk 탑진행모의화우화。채용삼탑등효류정，진행간첩계산，학정 Petlyuk 탑적초시삼수。재초시삼수하，이용 Aspen Plus 적 Multifrac-Petlyuk 모괴엄격모의，병이용 Sensitivity 모괴，분별우화회류비 R、진료위치、측선출료위치、호련위치급호련물류류량등삼수。이을순-정병순-정정순삼원체계위례，모의화우화결과위：주탑탑판수58，예분탑탑판수29，진료재예분탑제12괴판，측선출료재주탑제28괴판，주탑마이회류비4.6，예분탑탑정화주탑호련위치재주탑제18괴판，탑저화주탑호련위치재제47괴판，주탑반회예분탑정부적액상류량위65 kmol/hr，반회예분탑저부적기상류량위145 kmol/hr。재차우화삼수하，가득도98.9%을순、98.7%정병순화99.0%정정순，체도분리요구。모의화우화적결과대공업화설계화생산구비지도의의。
Simulation and optimization of Petlyuk column was carried out by Aspen Plus software. Shortcut calculation was executed using three-column process to obtain initial parameters of Petlyuk column. In the initial parameters, rigorous calculation was executed by Multifrac-Petlyuk model and sensitivity model was used to optimize the parameters such as reflux ratio, feed stage, side product stage, connection stage and connection flow of the Petlyuk column. As an example, the separation of tri-component ethanol-propanol-butanol was simulated using a Petlyuk column. The results are as follows: plate number is 58 of main column and 29 of pre-fractionator, feed stage based on pre-fractionator is 12, side product stage based on main column is 28, reflux ratio is 4.6. connection stage is 18 of main column to pre-fractionator’s overhead and 47 of main column to pre-fractionator’s bottom, liquid-phase reflux of main column to pre-fractionator’s overhead is 65 kmol/hr and gas-phase reflux of main column to pre-fractionator’s bottom is 145 kmol/hr. At these parameters, the product’s mass fraction is 98.9% of ethanol, 98.7% of n-propanol and 99.0% of n-butanol, which all meet the requirement of the separation. The results of simulation and optimization will provide fundamental guide for the industrial design and production.