(415k) A Conceptual Design of an Allam-Cycle Centered Industrial Complex for CO2 Enhanced Oil Recovery

Global population continuously growth brings worldwide challenges like energy shortage and greenhouse gas (GHG) emission surge. Under these challenges, two promising technologies with great potential have drawn great attention: (i) the CO₂ enhanced oil recovery (EOR) for oil and gas productions; and (ii) the pure oxygen fueled Allam cycle for high-efficiency power production with free CO₂ and NOx emissions. Bearing their merits, this paper has developed a conceptual design of an industrial complex to simultaneously enhance energy and chemical productions, as well as prevent GHG and NOx emissions. It integrates an air separation unit (ASU), an Allam cycle power plant, and an EOR process unit. Through integrating material/power streams, the Allam cycle will empower the ASU and EOR process and in turn be fueled by the pure O₂ produced from ASU. The product N₂ from ASU will be fed to other industrial processes as valuable feedstock. EOR process utilizes the pipeline-ready CO₂ from the Allam cycle to recover oil or shale oil, which has a great potential for the production at oil or shale gas fields that are far away from ordinary CO₂ resources. This design has been virtually verified by rigorous large-scale modeling and simulation. The efficacy of its economic and environmental benefits are also demonstrated comprehensively to exemplify its system excellence.