低碳化学与化工2026，Vol.51Issue(4)：118-125,8.DOI:10.12434/j.issn.2097-2547.20250415
ZIF-8/DMAC浆液分离H2/CO2:相平衡实验与流程模拟
H2/CO2 separation via ZIF-8/DMAC slurry:Phase equilibrium experiment and process simulation
摘要
Abstract
The porous slurry integrates the excellent fluidity and mass/heat transfer properties of liquid absorbents,and has the high specific surface area and well-developed pore structure of porous solid adsorbents,which is expected to become a new generation medium for CO2 capture.To explore the indicators and energy consumption of CO2 removal process using ZIF-8/DMAC porous slurry,a full-process model of slurry treating 300000 m3/h shift gas(H2/CO2)was established by Aspen Plus,based on the gas-slurry phase equilibrium experiments.The operating conditions and energy consumption per unit feed gas were analyzed and compared with the traditional propylene carbonate(PC)CO2 capture process.The mean relative error between the simulation and the experiment solubility is less than 5.00%,indicating that the model results show good agreement with experimental data.For shift gas with 40%(mole fraction)CO2,under the conditions of absorption pressure of 1.8 MPa,absorption temperature of 30℃,gas-liquid volume ratio of 80,and desorption pressure of 0.01 MPa,the H2 recovery ratio of the ZIF-8/DMAC porous slurry process is 98.73%and the CO2 capture ratio is 99.11%,and the CO2 concentration in the purified gas is as low as 0.60%,and the energy consumption is 0.026(kW·h)/m3.Compared with the PC process under the same CO2 capture task,the ZIF-8/DMAC slurry process reduces solvent circulation by 50.10%and energy consumption by 38.10%,showing a clear energy-saving advantage.关键词
多孔浆液/CO2捕集/相平衡/流程模拟/工艺对比Key words
porous slurry/CO2 capture/phase equilibrium/process simulation/process comparison分类
化学化工引用本文复制引用
曹潘,杨明科,邓春,陈光进..ZIF-8/DMAC浆液分离H2/CO2:相平衡实验与流程模拟[J].低碳化学与化工,2026,51(4):118-125,8.基金项目
国家自然科学基金(22278429). （22278429）
