核化学与放射化学2025，Vol.47Issue(5)：540-547,8.DOI:10.7538/hhx.2025.YX.2024043
热泵精馏分离D2O/H2O工艺过程节能分析
Energy Saving Analysis of Heat Pump Distillation Separation Process of D2O/H2O
摘要
Abstract
D2O is widely used in nuclear research as a moderator and coolant in nuclear reactors.When using water distillation process to concentrate D2O,due to the similar properties of deuterium and hydrogen,a larger reflux ratio(50-200)is required,resulting in high energy consumption of the distillation tower.In this study,the characteristics of the mixture separation system of D2O and H2O were firstly analyzed,and the distillation process of D2O concentration was established by ASPEN software.Its operating parameters such as the number of tower plates,feed position,and reflux ratio were optimized.The simulation results show high energy consumption in conventional distillation.The use of heat pump distillation technology can effectively reduce the energy consumption of the distillation system.This paper proposes a new heat pump distillation process for D2O concentration.By analyzing the principle and applicable scope of heat pump distillation,the operating parameters of the new process were optimized and the operating conditions of the circulating working fluid flow rate of 323.66 kg/h and the compressor compression ratio of 3.3 were determined to meet the separation requirements and reduce energy consumption.By comparing the thermodynamic parameters and energy consumption analysis of conventional distillation and heat pump distillation,the results show that the heat pump distillation has good application prospect in the D2O concentration process.The comprehensive energy consumption than conventional distillation reduces by 61.28％,energy saving benefit of 66.66％.关键词
水精馏/D2O提浓/热泵精馏/优化设计Key words
water distillation/D2O concentration/heat pump distillation/optimal design分类
化学工程引用本文复制引用
主炳鑫,邹正宇,李世生,熊小红,李昌达,张志伟,张旭斌,李国兵..热泵精馏分离D2O/H2O工艺过程节能分析[J].核化学与放射化学,2025,47(5):540-547,8.基金项目
国家自然科学基金资助项目(21978198) （21978198）
