Laboratory-scale studies on the effect of promoters on CO_(2) capture and sequestration via hydrate method:A comprehensive review  

作　　者：Guangjun Gong Jingru Zhang Ying Teng Qingping Li Mingjun Yang Jia-nan Zheng Bingbing Chen Yongchen Song 

机构地区：[1]Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education,Dalian University of Technology,Dalian,116024,China [2]Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization,Shenzhen University,Shenzhen,518060,China [3]State Key Laboratory of Natural Gas Hydrates,Technology Research Dept.CNOOC Research,Beijing,100027,China [4]Shanghai Institute for Advanced Study of Zhejiang University,Shanghai,201203,China

出　　处：《Energy Reviews》2024年第4期18-34,共17页能源评论(英文)

基　　金：supported by the National Natural Science Foundation of China(52206076,51822603,U19B2005,52306205,52304098);Liao Ning Revitalization Talents Program(XLYC1907096);National Key Research and Development Plan of China(2021YFC2800902);the and the Fundamental Research Funds for the Central Universities of China(DUT21ZD103);Ph.D.Programs Foundation of Liao Ning(2023-BS-060);Study on the marine solidification technology of CO_(2) hydrate(KJGG-2022-12-CCUS-0302);Natural Science Foundation of Guangdong Province(2023A1515012761,2023A1515012316,2022A1515110338);Shenzhen Science and Technology Program(JCYJ20220530113011027,JCYJ20220818095605012).

摘　　要：CO_(2) capture and sequestration via the hydrate method has attracted much attention because of its high sequestration density and energy density.However,the influencing mechanism of the promoters on the formation of CO_(2) hydrate was not yet clarified.Also,there was no comprehensive review of the effect of promoters on CO_(2) hydrate formation from laboratory-scale studies.Therefore,this paper reviewed the effect of promoters on CO_(2) capture and sequestration via the hydrate method from the laboratory research scale.Typical CO_(2) hydrate formation processes were summarized in detail.And the characteristic parameters of CO_(2) hydrate were analyzed.Then,the different types of promoters were carefully overviewed.In particular,the influencing mechanisms of promoters on CO_(2) hydrates were highlighted and compared.Thermodynamic promoters mainly affected the conditions of hydrate formation,while kinetic promoters mainly acted at the gas-liquid contact interface.However,the promotional mechanism of CO_(2) hydrate promoters was controversial and the solution formulation units were not consistent.In addition,the effects of different promoters on CO_(2) capture,separation,and sequestration were also summarized.The existing studies ignored the CO_(2) hydrate formation experiments under in-situ conditions in the presence of promoters.The influence of different promoters on the sequestration effect was critically evaluated through parameters such as phase equilibrium curves,induction time,gas consumption,and sequestration density.A uniform evaluation standard for CO_(2) hydrate promoters was lacking.Finally,future development recommendations should focus on large-scale,low-energy,commercial,in-situ,environmentally friendly,and intelligent research directions.The review may provide some theoretical guidance for the commercial application of CO_(2) hydrate.

关 键 词：CO_(2)hydrate Promoters CO_(2)capture CO_(2)sequestration 

分 类 号：O62[理学—有机化学]