Carbon capture and sequestration, the process of filtering CO2 from emitters before it enters the atmosphere and storing it deep underground for hundreds of years, is the most impactful way to mitigate climate change while ensuring reliable energy supply. Successful carbon capture and storage projects are critical to our clean energy transition.
In the past, failed carbon capture projects utilized pre-combustion coal-gasification processes. Enchant will operate post-combustion, amine-based carbon capture systems, like those already running successfully on a smaller scale. By scaling proven technology, Enchant seeks to build the lowest emitting coal plant in the world and expand CCS capacity.
Enchant successfully utilizes amine carbon capture technology for all types of emitters. Although amine has been used to filter and clean pollutants for 100 years in the natural gas, petrochemical, and refining industries, Enchant’s innovation enables amine to be used to recover CO2 from low-pressure, oxygen-containing streams, like power plant flue gas.
Enchant is optimizing CO2 storage capacity. As with electrification, the biggest challenge has not been production—it has been storage. With CCS, unprecedented amounts of CO2 are kept out of our atmosphere, and the need for underground storage continues to grow. Expanding safe storage capacity is the focus of our R&D.
The 45Q tax credit is an increasingly critical carbon capture incentive. Combined with the declining cost of carbon capture technology—made possible by extraordinary collaborations—45Q tax credits are creating attractive investment opportunities and driving the expansion of CCS capacity.
In November 2022, Enchant Energy announced that the San Juan Generating Station Carbon Capture Front-End Engineering Design (FEED) Study is now publicly available. The study was partially funded through an agreement with the United States Department of Energy.
The FEED Study was successful in establishing and defining the technical requirements, scope, schedule, and costing for the project to add carbon capture technology to the San Juan Generating Station.
The FEED Study shows that the technical and business cases for adding carbon capture technology to existing coal fired power plants is strong. Enchant Energy will utilize the advances made in carbon capture plant optimization to develop other projects across the company.
The core technology for the carbon capture system uses a proprietary amine‐based solvent carbon dioxide capture system developed by Mitsubishi Heavy Industries America, Inc., (MHIA). An earlier iteration of the technology was successfully implemented in 2016 by MHIA on a slipstream from a coal-fired boiler at the Petra Nova Plant in Texas.
Even though the San Juan project was unable to proceed due to owners’ disputes regarding transfer of the power plant, the FEED study is being used to accelerate the development of other projects.