Examination of gasification characteristics of pressurized two-stage entrained flow coal gasifier (Comparison of basic performance with 2T/D and 200T/D coal gasifier)

• Published in: JSME international journal. Series B, Fluids and thermal engineering Vol. 44; no. 3; pp. 337 - 343
• Main Authors: HARA, Saburo, ICHIKAWA, Kazuyoshi, INUMARU, Jun, ASHIZAWA, Masami
• Format: Journal Article
• Language: English
• Published: Tokyo Japan Society of Mechanical Engineers 01.08.2001; Japan Science and Technology Agency
• Subjects: Applied sciences; Energy; Exact sciences and technology; Fuel processing. Carbochemistry and petrochemistry; Fuels; Solid fuel processing (coal, coke, brown coal, peat, wood, etc.); Coal gas; Gasification; Entrained bed; Experimental study; Combined cycle power plant; Coal
• ISSN: 1340-8054; 1347-5371
• DOI: 10.1299/jsmeb.44.337

The program for the 200T/D coal gasification pilot plant was initiated in 1986 and successfully completed in 1996. In this program, a two-stage pressurized air-blown entrained flow coal gasifier was adopted, jointly developed by Central Research Institute of Electric Power Industry (CRIEPI) and Mitsubishi Heavy Industry, Ltd. using a 2T/D bench scale gasifier. In the 200T/D pilot plant, domestic Taiheiyo coal and Australian Moura, Warkworth coal were used for test operations. The commissioned tests of these three types of coals have been carried out in a 2T/D gasifier, prior to the pilot plant operation. The gasification characteristics of 2T/D and 200T/D gasifiers were evaluated. At the same gasifier air ratio, per pass fixed carbon conversion efficiency of the 2T/D gasifier is about 10% lower than that of the 200T/D gasifier and the heat absorption rate to the gasifier wall of the 2T/D gasifier is about 2% higher than that of the 200T/D gasifier.