同位素2011，Vol.24Issue(z1)：7-14,8.
碳、氮、氧稳定同位素生产技术现状及发展趋势
Production Technology Status and Development Trend of Stable Isotopes C, N and O
摘要
Abstract
It has been over half a century since the successful separation of table isotopes carbon, nitrogen and oxygen. The production capacity achieved three levels improvements from the laboratory-scale of one hundred grams, to the pilot production of several kilograms, and mass production of one hundred kilograms. The separation-technologies also a-chieved three generation progress. The first generation of separation technology was represented by thermal diffusion method, chromatography, and ion exchange; the second generation of separation technology was represented by chemical exchange, distillation; the third generation of separation technology was characterized by the techniques innovation of material recycling, energy coupling, energy saving, and large-scale production capacity. At present, 13C is wholly produced by cryogenic distillation method, 15N is produced by NO/ HNO3 chemical exchange and NO cryogenic distillation method, and 18O is manufactured bydistillation of water, and cryogenic distillation of NO and O2. The same features of these separation methods are achieving energy coupling, materials recycling, large-scale producing, and energy conservation in the process. In the future, it will be the theme of stable I-sotope industry to develop environment-friendly, raw materials available, energy saving, low-cost, and large-scale manufacturing technology through continuous technological innovation.关键词
稳定同位素/碳/氮/氧/生产技术/现状/发展趋势Key words
stable isotope/C/N/O/production technology/status/development trend分类
能源科技引用本文复制引用
李虎林..碳、氮、氧稳定同位素生产技术现状及发展趋势[J].同位素,2011,24(z1):7-14,8.基金项目
上海市启明星计划(10QB1401700) （10QB1401700）
上海市研发基地项目(10dz2211200) （10dz2211200）
