氢-水同位素催化交换速率及过程模拟的研究进展

氢-水同位素催化交换在处理ITER聚变堆废水以及核裂变反应堆重水升级方面具有应用前景。该交换过程及核心设备催化交换塔的模型化研究,对工艺和工程优化设计具有十分重要的意义。本文重点介绍了氢-水同位素催化交换过程模拟的研究进展,讨论了同位素催化交换速率的计算方式以及吸收塔模型和滴流床模型在同位素催化交换过程模拟中的应用,探讨了氢-水同位素催化交换过程模拟今后的研究方向。通过各类模型的比较,滴流床模型被认为在催化交换过程模拟中有良好应用前景。氢-水同位素催化交换机理及速率计算方法和催化交换塔模型化等方面有待进一步研究。

Advances in Rate and Process Simulation of Catalytic Isotopic Exchange Between Hydrogen and Water

Catalytic isotopic exchange between hydrogen and water is prospective to be applied in waste water treatment for fusion reactor such as ITER and heavy water upgrading for fission reactor.Research in modeling the exchange process and the key facility,catalytic exchange column,is significant for optimization and design in engineering and processing.The advances in simulation of catalytic exchange process are mainly introduced.Methods adopted in determining catalytic isotopic exchange rate and applications of absorption tower model and trickle bed model in simulating catalytic isotopic exchange process are discussed.The further development of the research is also suggested.Trickle bed model is considered to be prospective in simulating catalytic isotopic exchange process compared with other models.Mechanism and rate determination of catalytic isotopic exchange between hydrogen and water as well as modeling of catalytic exchange tower still need to be perfected.