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The Belt and Road Initiative proposed by China is a common aspiration of all countries along their routes to achieve sustainable development of the environment, economy, society, and people's livelihood. Recently, prominently raised CO 2 concentration in the Belt and Road region is perceived to give rise to these serious greenhouse effects on severe and sustained global warming. It could lead to related climate instability, adverse natural disasters, glacier melting, and extreme weather patterns. CO 2 -enhanced oil recovery (CO 2 -EOR) is one of the essential CCU technologies. Due to lacking sustainable quantitative evaluation of CCU technology widely used in promising industries, it is imperative to conduct process simulation and optimization evaluation of CCU technology. Considering the lack of sustainable quantitative evaluation of CO 2 -EOR, we proposed a multi-objective optimization and sustainable quantitative assessment to provide insights and enhance the separation of produced gas and CO 2 capture for CO 2 -EOR. Their industrial applications before and after optimization were systematically simulated, discussed, and compared. With unremitting efforts, the optimized CO 2 capture process can stably separate oil field-produced gas into pure CO 2 and oilfield light hydrocarbons, with a mass content of CO 2 over 99.7 wt%. The optimized process demonstrated outstanding technical, economic, social, livelihood, and environmental properties. This study will undoubtedly benefit researchers in related fields of CCU process simulation, promote significant breakthroughs in basic research, superstructure, and commercial applications, and provide a perspective for the Belt and Road Initiative to establish better and optimize CCU devices and realize regional and global cooperation, future scientific and industrial progress. [Display omitted] • The first proposed simulation enhances the separation of produced gas and CO 2 capture for oil recovery. • Detailed process models, original simulation files, and detailed modeling steps are performed. • Life cycle optimization strategies using BAB methods are carried out from multi-dimension. • The optimized process has superior techno-economic-society-livelihood-environment property. [ABSTRACT FROM AUTHOR]

The Belt and Road Initiative proposed by China is a common aspiration of all countries along their routes to achieve sustainable development of the environment, economy, society, and people's livelihood. Recently, prominently raised CO 2 concentration in the Belt and Road region is perceived to give rise to these serious greenhouse effects on severe and sustained global warming. It could lead to related climate instability, adverse natural disasters, glacier melting, and extreme weather patterns. CO 2 -enhanced oil recovery (CO 2 -EOR) is one of the essential CCU technologies. Due to lacking sustainable quantitative evaluation of CCU technology widely used in promising industries, it is imperative to conduct process simulation and optimization evaluation of CCU technology. Considering the lack of sustainable quantitative evaluation of CO 2 -EOR, we proposed a multi-objective optimization and sustainable quantitative assessment to provide insights and enhance the separation of produced gas and CO 2 capture for CO 2 -EOR. Their industrial applications before and after optimization were systematically simulated, discussed, and compared. With unremitting efforts, the optimized CO 2 capture process can stably separate oil field-produced gas into pure CO 2 and oilfield light hydrocarbons, with a mass content of CO 2 over 99.7 wt%. The optimized process demonstrated outstanding technical, economic, social, livelihood, and environmental properties. This study will undoubtedly benefit researchers in related fields of CCU process simulation, promote significant breakthroughs in basic research, superstructure, and commercial applications, and provide a perspective for the Belt and Road Initiative to establish better and optimize CCU devices and realize regional and global cooperation, future scientific and industrial progress. [Display omitted] • The first proposed simulation enhances the separation of produced gas and CO 2 capture for oil recovery. • Detailed process models, original simulation files, and detailed modeling steps are performed. • Life cycle optimization strategies using BAB methods are carried out from multi-dimension. • The optimized process has superior techno-economic-society-livelihood-environment property. [ABSTRACT FROM AUTHOR]