CO2 Reduction Technology for Thermal Power Plant Systems

OVERVIEW: Among the international efforts to curb global warming, practical application of CO2 removal technology and improvement of powergeneration efficiency — for reducing CO2 emission from thermal power plants (which will probably remain the prime source of power in future) — will, at the very least, become urgent issues over the next several decades. Accordingly, the Hitachi Group is aiming at further improving efficiency with the following main developments: 700°C USC coal-fired thermal power, coal-gasification power generation, a high-efficiency turbine, and a new thermal-cycle system. By performing CO2-recovery tests on a coalgasification power plant and developing an oxy-combustion-system coal boiler suited to CO2 recovery, we are also actively engaged in practical application of CCS technology which incurs low energy loss. Osamu Ito, Dr. Eng. Koichi Chino, Dr. Eng. Eiji Saito Shinya Marushima, Dr. Eng. Christian Bergins, Dr. Eng. Song Wu, Ph. D.