Thermal behavior on reactor of 150 ton/day coal liquefaction pilot plant
The 150 ton-coal/day Bituminous coal liquefaction pilot plant of the NEDOL process supported by New Energy and Industrial Technology Development (NEDO) was successfully operated intermittently from March, 1997 to September, 1998 in Kashima, Ibaraki, Japan. Through the operation of the pilot plant in Kashima, the authors have obtained valuable engineering data to design a demonstration plant of the NEDOL process to be applied to a wide range of coal. The reactor system of the pilot plant consisted of three bubble column reactors in series. The feed temperature of the first reactor was fifty to seventy K lower than the outlet temperature. The reaction temperature was kept almost constant with two stages of gas quench at the second and third reactors. The heat of reaction of Tanito-Harum coal was estimated to be about 2,100kJ/Nm{sup 3}-hydrogen and it was similar to previous data. Also, the ratio of heat generated in the first, second, and third reactor was estimated to be 0.64, 0.23, and 0.13 respectively. The measured heats of reaction for three kinds of coal showed a good relationship with gas yield of reaction and Oxygen to Carbon atomic ratio of feed coal.
- Research Organization:
- Nippon Coal Oil Co., Ltd., Tokyo (JP)
- OSTI ID:
- 20013484
- Country of Publication:
- United States
- Language:
- English
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