重氧水分离级联中氘和氧18浓度分布及其影响

doi:10.3969/j.issn.0438-1157.2014.01.027

化工学报 ›› 2014, Vol. 65 ›› Issue (1): 213-219.DOI: 10.3969/j.issn.0438-1157.2014.01.027

重氧水分离级联中氘和氧18浓度分布及其影响

高云虎¹, 徐志红², 余兆钧², 费维扬¹

1 清华大学化学工程系, 化学工程联合国家重点实验室, 北京 100084;
2 江苏华益科技有限公司, 江苏常熟 215522

收稿日期:2013-06-27 修回日期:2013-10-22 出版日期:2014-01-05 发布日期:2014-01-05
通讯作者: 费维扬
作者简介:第一作者：高云虎（1988-），男，硕士。

Concentration distribution of deuterium and oxygen-18 and its influence in heavy-oxygen water separation cascade

GAO Yunhu¹, XU Zhihong², YU Zhaojun², FEI Weiyang¹

1 State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
2 Jiangsu Huayi Technology Co., Ltd., Changshu 215522, Jiangsu, China

Received:2013-06-27 Revised:2013-10-22 Online:2014-01-05 Published:2014-01-05

摘要/Abstract

摘要： 在水精馏法分离同位素的系统中，氘和氧18同时得到富集，情况比较复杂。为使该系统的模拟更加贴近实际情况，提出了一种可同时计算氘和氧18浓度分布及氧16/氧18分离系数的新方法。此方法将不同的水分子划分为四个集总，简化了复杂的同位素交换反应网络。然后利用ASPEN PLUS的反应精馏模块进行计算。对一个五塔级联的水精馏制氧18水系统的模拟计算表明，产品中氘浓度达到了70.7%，氧18浓度达到了98.0%。在最后一个精馏塔内，随着氘含量的增加，氧16/氧18分离系数α_cal从接近α_H216O/H218O变得更接近α_D216O/D218O。

关键词: 氧18水, 氘, 模拟, ASPEN PLUS, 反应精馏, 集总, 模型简化

Abstract: Deuterium and oxygen-18 are enriched in a water distillation system for isotope separation. A new method is proposed to calculate concentration distributions of deuterium and oxygen-18 and the separation factor for oxygen-16 and oxygen-18. The method divides water into four lumps to simplify the complicated isotope exchange reactions. Reactive distillation module of ASPEN PLUS is used to complete the simulation. An example containing five distillation columns cascade indicates that the concentrations of deuterium and oxygen-18 reach 70.7% and 98.0%, respectively. With the increase of deuterium concentration in the last column, the separation factor for oxygen-16 and oxygen-18 α_cal approaches α_H216O/H218O rather than α_D216O/D218O.

Key words: oxygen-18 water, deuterium, simulation, ASPEN PLUS, reactive distillation, lumping, model reduction

中图分类号:

TQ028.3⁺1

高云虎, 徐志红, 余兆钧, 费维扬. 重氧水分离级联中氘和氧18浓度分布及其影响[J]. 化工学报, 2014, 65(1): 213-219.

GAO Yunhu, XU Zhihong, YU Zhaojun, FEI Weiyang. Concentration distribution of deuterium and oxygen-18 and its influence in heavy-oxygen water separation cascade[J]. CIESC Journal, 2014, 65(1): 213-219.

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重氧水分离级联中氘和氧18浓度分布及其影响

Concentration distribution of deuterium and oxygen-18 and its influence in heavy-oxygen water separation cascade

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