化工学报2025，Vol.76Issue(2)：623-636,14.DOI:10.11949/0438-1157.20240918
Bunsen反应产物在微通道中的液-液两相混合特性
Liquid-liquid mixing characteristics of Bunsen reaction products in microchannels
摘要
Abstract
In order to solve the key technical problems of the thermochemical sulfur-iodine(S-I)cycle and the H2 S splitting cycle for hydrogen production,the mixing characteristics of the Bunsen reaction products(HI/H2SO4/H2O/toluene liquid-liquid two-phase mixture)in the microchannel were investigated by numerical simulation using ANSYS-FLUENT.The relationship between the two-phase mixing in the microchannel and the inlet mode,inlet flow rate,and two-phase flow rate ratio was systematically analyzed,and the strengthening effect of adding obstacles in the microchannel on the two-phase mixing was discussed.The results show that the mixing is more effective when two phases enter the channel in an upper and lower stratified manner.Increasing the flow rates of two phases can significantly increase the mixing degree but the channel pressure loss increases accordingly.When the two-phase flow rate ratio is 1:1 and the flow rate is 0.035 m/s,the mixing degree reaches the maximum value of 88.72％while the pressure loss is relatively low.Setting obstacles inside the channel can form periodic eddy currents,which can effectively shorten the two-phase mixing time and strengthen the two-phase mixing.Compared to semicircular barriers,rectangular barriers provide a greater promotion of mixing but have a greater pressure loss.关键词
热化学循环制氢/Bunsen反应产物/两相流/混合/微通道/数值模拟Key words
thermochemical cycle for hydrogen production/Bunsen reaction products/two-phase flow/mixing/microchannels/numerical simulation分类
化学化工引用本文复制引用
张珂,任维杰,王梦娜,范凯锋,常丽萍,李佳斌,马涛,田晋平..Bunsen反应产物在微通道中的液-液两相混合特性[J].化工学报,2025,76(2):623-636,14.基金项目
山西回国留学人员科研资助项目(2022-164) （2022-164）
山西省专利转化计划项目(202405016) （202405016）
山西省高等学校科技创新项目(2022P007) （2022P007）
太原科技大学研究生联合培养示范基地项目(JD2022017) （JD2022017）
