1. (1) Inumaru, J., Hara, S., Hamamatsu, T. and Ishikawa, H., A 2T/D Pressurized Two-stage Entrained Bed Coal Gasifier and The Test Results, 1989 International Conference on Coal Science, Tokyo, Japan, (1989).
2. (2) Kidoguchi, K., Ashizawa, M., Taki, M., Ishimura, M. and Takeno, K., A Study on Ultra Heavy Oil Gasification Technology, The 25th International Technical Conference on Coal Utilization&Fuel Systems, Clearwater, USA (2000).
3. Gasification rate analysis of coal char with a pressurized drop tube furnace