化学工程2026，Vol.54Issue(1)：13-19,7.DOI:10.3969/j.issn.1005-9954.2026.01.003
注入压差/压力对液态CO2水合物封存影响实验研究
Experimental study on effect of injection pressure difference/pressure on storage of liquid CO2 hydrate
摘要
Abstract
To investigate the influencing factors and laws of injection pressure liquefaction conditions on the formation process of CO2 hydrates in marine environments,a formation environment temperature of 1℃and an effective water content(mass fraction)of 99.0%were selected to study the storage characteristics under different injection pressures(0.02,0.05 MPa)and injection pressures(4.0,4.5,5.0 MPa).The pressure and temperature changes were analyzed during the synthesis of CO2 hydrates in the experiment,as well as the final water conversion rate,CO2 gas consumption and saturation of each component.The results show that the smaller the injection pressure difference,the faster the sealing speed in the early stage of the experiment.The initial sealing pressure affects the temperature distribution inside the reaction vessel,and a pressure that is too low or too high can greatly affect the sealing effect.The feasibility and implementation strategy are explored of using hydrate method to sequester liquid CO2 in the sea.关键词
水合物/液态二氧化碳/封存率/注入压力Key words
hydrate/liquid CO2/sealing rate/injection pressure分类
资源环境引用本文复制引用
杨凡,赵建忠,张驰,高强..注入压差/压力对液态CO2水合物封存影响实验研究[J].化学工程,2026,54(1):13-19,7.基金项目
山西省科技创新人才团队重点项目(202304051001012) （202304051001012）
博士后面上71批基金资助项目(2022M712337) （2022M712337）
