低温精馏分离稳定同位素^(13)C的模拟优化研究  

Simulation and Optimization of Stable Isotope ^(13)C Separation by Carbon Monoxide Cryogenic Distillation

作　　者：李虎林[1,2] 巨永林[1] 李良君[2] 徐大刚[2] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海化工研究院,上海200062

出　　处：《原子能科学技术》2009年第B12期54-58,共5页Atomic Energy Science and Technology

基　　金：国家"863"计划资助项目(2008AA02Z427);上海市引进技术的吸收与创新年度计划资助项目(07ZH2-003);上海市科委科技人才计划资助项目(08XD14215)

摘　　要：研究建立了1座采用一氧化碳低温精馏分离稳定同位素13C的试验装置,精馏塔填料层高17.5 m,其中,精馏段15 m,提馏段2.5 m,塔内径为45 mm。首先利用试验结果对计算机模拟手段进行验证,在此基础上,采用计算机模拟代替试验,进行试验装置操作条件的优化设计。综合分析了塔压、进料量、回流比、出料量、再沸器功率等对产品的影响,通过计算机模拟结合均匀试验设计的数字试验方法,实现了试验装置的优化设计。结果表明,在再沸器功率为250 W、塔压为54 kPa、回流比为84时,可达到已建试验装置的最优化操作。本研究所采用的计算机模拟结合试验设计手段可应用到13C的产业化设计以及推广至传统精馏过程的优化设计中。A stable isotope ^13C separation column was set up by carbon monoxide （CO） cryogenic distillation. Diameter of the column is 45 mm, packing height is 17.5 m, of which enriching section is 15 m and stripping section is 2.5 m. Firstly, computer simulation results were validated by test results. Secondly, tests were replaced by computer simulations in order to obtain the optimal operation conditions in the experimental setup. Comprehensive factors of column pressure, feeding velocity, reflux ratio, with- drawing velocity, and boiling power impacts on the products were studied. Then optimization design of the experimental device was achieved through computer simulations combined with uniform experimental design. The final results show that the optimal operation conditions in the built column are as followings= boiling power, 250 W; column pressure, 54 kPa; reflux ratio, 84. The conclusion is that the method of combination of computer simulation and experimental design could be applied to ^13C industrial design and could be popularized in traditional distillation process to realize optimization design.

关 键 词：低温精馏 同位素13C 优化设计 计算机模拟 均匀设计 

分 类 号：TQ028.13[化学工程]