Operation Experiences of Oxyfuel Boiler in Callide Oxyfuel Project

摘要

We are facing global warming, mainly due to the increase in atmospheric carbon dioxide (CO2) concentration. According to "World Energy Outlook 2013" (IEA), coal use has increased substantially over the last decade, driven by and contributing to an unprecedented expansion in economic activity. In addition, coal is the largest source of electricity generation, growing steadily at around 1.2% per year. On the other hand, coal is a major source of local air pollution and, as the most carbon-intensive fossil fuel, it is the main contributor to rising energy-related CO2 emissions. [1] To decrease emissions of CO2 from power plants, we must enhance their efficiency and develop global CCS (Carbon dioxide Capture and Storage) technology. Callide Oxyfuel Project commenced with cooperation between Australia and Japan. One of the main objectives of this Project is to capture CO2 from actual power plant for CO2 storage. The oxyfuel boiler has been demonstrated and has given us the various operation results under oxyfiring. Callide-A is now the largest operating oxfuel plant in the world. In this paper, the operational experiences of the oxyfuel boiler are presented.