CCUS Demonstration Project at WA Parish Station-Results of FEED Study

摘要

NRG Energy, Inc. (NRG) has been selected by U.S. Department of Energy (DOE) to install a Post Combustion slipstream Carbon Capture, Utilization, and Storage (CCUS) demonstration project. The carbon dioxide (CO_2) captured from the facility's flue gas will be transported to a nearby oilfield, where it will be used for enhanced oil recovery (EOR). The facility will use an amine-based chemical absorption technology to capture the CO_2. The process requires heat in the form of steam to regenerate the solvent. In lieu of using steam from the existing power plant cycle, the facility will be designed to use a new cogeneration plant, consisting of a combustion turbine generator (CTG) with a heat recovery steam generator (HRSG) to provide the thermal energy to the capture facility. This design provides opportunities for advanced integration concepts between the cogeneration plant, the capture facility, and the existing plant systems. This approach has the potential to improve the economics while minimizing the impacts of retrofitting Carbon Capture System (CCS) technologies on existing power plants. The front-end engineering design (FEED) study has been completed with a draft report submitted to the DOE summarizing the projected costs of the CCS. The air permit has been prepared and submitted to the state of Texas. Studies required by the National Environmental Policy Act (NEPA) are in progress. This presentation reviews the general design concept of the facility with a focus on balance-of-plant (BOP) integration, and provides an update on the project status. Summary cost and schedule results of the FEED are also presented with this update.