Coal Gasification Technology

Coal gasification excels at using low-grade coal(sub-bituminous coal and brown coal), which is not suitable for PCF plants. Therefore, it will be hardly seen that IGCC plants and PCF plants compete for their energy sources, which will contribute to cost-efficiecy and security in energy sector.

Source: WEC World Energy Resources 2013 Survey

The pre-combustion capture method is combined with IGCC. The treated gas has a high pressure, low volume and high CO₂ concentration,which allows us to capture CO₂ efficientiy and to lose less energy.

Coal ash is melted and discharged as slag ( a vitreous solidified product), which is currently effectively used as a base material for cement.

Research for standardization and increasing added value are underway, and it is expected that the effective uses will be expanded in the future.

Syngas is characterized by abundant combustive components (CO and H₂) and high calorific value.It is possible to expect that this will have even higher efficiency in the future in conjunction with an increase of the gas turbine combustion temperature.