Fundamental research and economic analysis of hydrate-based carbon dioxide(CO_(2))sequestration play a key role in developing the industrialization of oceanic CO_(2) sequestration.Therefore,this review deals with rece...Fundamental research and economic analysis of hydrate-based carbon dioxide(CO_(2))sequestration play a key role in developing the industrialization of oceanic CO_(2) sequestration.Therefore,this review deals with recent progress in hydrate-based CO_(2) sequestration from the thermodynamics and kinetics as well as their energy consumption and cost.The first section provides an overview of the thermodynamics of CO_(2) hydrate formation in both pure water and sea water,establishing a relationship between the enthalpy change of the hydrate formation reaction and the hydrate structure.Subsequently,a comparison of the kinetics of CO_(2) hydrate formation in pure water and sea water is presented,with further insight into the formation kinetics obtained through hydrate nucleation and growth models.The process of liquid CO_(2) forming hydrates is summarized,serving as a critical part of the fundamental research for oceanic CO_(2) sequestration.Finally,energy consumption and cost of CO_(2) capture methods are compared,and the whole sequestration process cost of CO_(2) capture-storage-transport-injection is comprehensively analyzed.The new understanding of this review is conducive to further commercial and industrial development of hydratebased CO_(2) sequestration.展开更多
基金Open access funding provided by South China University of Technologysupported by the Key Research and Development Program of Guangzhou(no.202206050002).
文摘Fundamental research and economic analysis of hydrate-based carbon dioxide(CO_(2))sequestration play a key role in developing the industrialization of oceanic CO_(2) sequestration.Therefore,this review deals with recent progress in hydrate-based CO_(2) sequestration from the thermodynamics and kinetics as well as their energy consumption and cost.The first section provides an overview of the thermodynamics of CO_(2) hydrate formation in both pure water and sea water,establishing a relationship between the enthalpy change of the hydrate formation reaction and the hydrate structure.Subsequently,a comparison of the kinetics of CO_(2) hydrate formation in pure water and sea water is presented,with further insight into the formation kinetics obtained through hydrate nucleation and growth models.The process of liquid CO_(2) forming hydrates is summarized,serving as a critical part of the fundamental research for oceanic CO_(2) sequestration.Finally,energy consumption and cost of CO_(2) capture methods are compared,and the whole sequestration process cost of CO_(2) capture-storage-transport-injection is comprehensively analyzed.The new understanding of this review is conducive to further commercial and industrial development of hydratebased CO_(2) sequestration.
