H<sub>2</sub>/CO<sub>2</sub> separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation

CAO Pan; YANG Mingke; DENG Chun; CHEN Guangjin

doi:10.12434/j.issn.2097-2547.20250415

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H₂/CO₂ separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation

更新时间：2026-04-23

- H₂/CO₂ separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation
- Vol. 51, Issue 4, Pages: 118-125(2026)
- 作者机构：
  
  1.中国石油大学（北京）化学工程与环境学院，重质油全国重点实验室，北京 102249
  2.中石化石油化工科学研究院有限公司，北京 100083
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250415
  CLC： TQ424;X773
- Received：29 October 2025，
  
  Revised：2025-12-02，
  
  Published：25 April 2026
- 稿件说明：
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曹潘,杨明科,邓春等.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.

CAO Pan,YANG Mingke,DENG Chun,et al.H₂/CO₂ separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(4):118-125.
曹潘,杨明科,邓春等.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. DOI： 10.12434/j.issn.2097-2547.20250415.

CAO Pan,YANG Mingke,DENG Chun,et al.H₂/CO₂ separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(4):118-125. DOI： 10.12434/j.issn.2097-2547.20250415.

摘要

多孔浆液融合了液体吸收剂的优良流动性与传质传热性能，兼具多孔固体吸附剂的大比表面积和发达孔隙特性，有望成为新一代CO

捕集介质。为了探究ZIF-8/DMAC浆液脱碳过程的工艺指标与能量消耗，在气-浆液相平衡实验基础上，利用Aspen Plus建立了ZIF-8/DMAC浆液处理300000 m

/h变换气（H

/CO

）的全流程工艺模型，分析了操作条件对工艺指标及处理单位原料气能耗的影响，并与传统碳酸丙烯酯（PC）脱碳工艺进行了对比。结果表明，H

、CO

在浆液中溶解度模拟计算值与实验值平均相对误差小于5.00%，模型准确度良好。对于CO

物质的量分数为40%的变换气，在吸收压力1.8 MPa、吸收温度30 ℃、气体与浆液体积之比90和解吸压力0.01 MPa条件下，ZIF-8/DMAC浆液工艺的H

回收率为98.73%，CO

捕集率达99.11%，净化气CO

物质的量分数为0.60%，能耗为0.026 (kW·h)/m

。相同脱碳任务情况下，与PC工艺对比，ZIF-8/DMAC浆液工艺溶剂循环量减小50.10%，能耗下降38.10%，具有明显的节能优势。

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 CO

capture. To explore the indicators and energy consumption of CO

removal process using ZIF-8/DMAC porous slurry

a full-process model of slurry treating 300000 m

/h shift gas (H

/CO

) 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) CO

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) CO

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 H

recovery ratio of the ZIF-8/DMAC porous slurry process is 98.73% and the CO

capture ratio is 99.11%

and the CO

concentration in the purified gas is as low as 0.60%

and the energy consumption is 0.026 (kW·h)/m

. Compared with the PC process under the same CO

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

Keywords

references

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H2/CO2 separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation

DOI：10.12434/j.issn.2097-2547.20250415

摘要

Abstract

关键词

Keywords

references

H₂/CO₂ separation via ZIF-8/DMAC slurry: Phase equilibrium experiment and process simulation