Project Update of the World's Largest Post Combustion CO2 Capture Plant

Mitsubishi Heavy Industries, Ltd. (MHI) has developed a high efficiency chemical solvent process, the KM CDR Process^® (Kansai Mitsubishi Carbon Dioxide Recovery Process), in collaboration with the Kansai Electric Power Co., Inc. to capture CO₂ from flue gas which has low CO₂ partial pressure, and include high oxygen content and trace impurities such as SO_X and NO_X. The process has been applied to eleven (11) commercial CO₂ capture plants with a maximum CO₂ capture capacity of 500 metric tons per day (tpd).

MHI has developed the KM CDR Process^® from coal-fired flue gas, as well. In the demonstration test program of a 500 metric tpd fully integrated Carbon Capture and Storage (CCS) plant with Southern Company, 200,000 tons of CO₂ has been captured from a coal-fired unit at Alabama Power Company’s James M. Barry Electric Generating Plant with stable operation and high availability.

These experiences have resulted in the development of the world’s largest CO₂ capture and compression plant on a coal-fired boiler in Texas with a capacity of 4,776 metric tpd. The plant, currently under construction, will capture CO₂ from a slipstream of coal-fired flue gas from an existing boiler. The CO₂ capture efficiency is designed to be 90%. The consortium of Mitsubishi Heavy Industries Americas, Inc. (MHIA) and TIC (The Industrial Company) is constructing the plant which is expected to be operational in the fourth quarter of 2016, per original plan.

This project has been developed by Petra Nova, a 50/50 joint venture between NRG Energy and JX Nippon Oil & Gas Exploration. The captured CO₂ will be compressed and transported for injection into the West Ranch oil field to boost oil production. Through Enhanced Oil Recovery (EOR), it is expected that production will be increased from approximately 500 barrels per day to 15,000 barrels per day.

This presentation shows the latest progress of the construction of this CO₂ capture plant.