Taiwan is an isolated island with dense limited natural resources, while over 99% of domestic energy demand is dependent on import from abroad. The global energy conservation and carbon reduction issues become more series. For aiming to reduce carbon dioxide emissions from power plants as well as steel factories and petro-chemical, clean coal utilization is one of the most promising technology, among which the core entities are advanced gasification process. This technology is useful not only for emission reduction and pollution improvement in coal-fired plants but also for increasing multicultural fuel flexibility such as the usage of biomass and waste materials. Thus, the goal of decreasing petroleum and natural gas demands can be achieved.