Buckeye III CCS

The Buckeye III CCS project is a proposed Class VI carbon storage development in Coshocton County, Ohio, designed to permanently sequester CO₂ captured from the Three Rivers Energy biorefinery. The project consists of a single injection well (Bellflower 1) targeting the Cambrian Basal Sandstone within the Appalachian Basin at approximately 7,000 ft depth. The site lies within a saline storage setting supported by regional geologic characterization and monitoring infrastructure, with injection and observation wells planned to confirm reservoir properties, pressure behavior, and containment performance. The well is designed for a maximum injection rate of about 0.5 million tonnes of CO₂ per year, with operations planned over a ~30-year injection period followed by a 50-year post-injection monitoring phase. Injection pressures will be maintained below fracture limits (~3,821 psig downhole), and the total storage volume could reach roughly 15 million tonnes if operated at full capacity.