Coal-fired Integrated Gasification Combined Cycle （IGCC） and Integrated coal Gasification Fuel-cell Com- bined cycle （IGFC） are being developed as high-efficiency electric power generation technology. However, the...Coal-fired Integrated Gasification Combined Cycle （IGCC） and Integrated coal Gasification Fuel-cell Com- bined cycle （IGFC） are being developed as high-efficiency electric power generation technology. However, the highest theoretical gross thermal efficiency of the conventional IGCC]IGFC is still below 52~. In order to obtain higher power generation efficiency, an advanced IGCC （A-IGCC） or advanced IGFC （A-IGFC） sys- tem making use of the exergy recuperation concept by recycling waste heat from gas turbine or fuel cells for steam gasification of coal and biomass was proposed in our laboratory, Corresponding to this system, a novel high-density triple-bed combined circulating fluidized bed （TBCFB） gasifier, composed of a downer pyrolyzer, a bubbling fluidized bed char gasifier, and a riser combustor, was proposed to replace traditional gasifiers such as the entrained flow bed gasifier. The new system is expected to more effectively utilize the waste heat from gas turbines or fuel cells and the heat produced by the combustion of the unreacted char in the riser combustor for pyrolysis and gasification of coal and biomass. In this short review, the advantages and future challenges in the development of high-density TBCFB gasifier are presented and discussed.展开更多
连续气化的生物质流化床气化炉,以空气和水蒸气为气化剂,用生物质和煤为原料(煤的质量比0~20%),煤气热值为6~7 M J/m3。该炉在生产燃气的同时,还可副产水蒸气和生物质木炭,燃气可民用、工业用及发电用。间歇气化的生物质流化床水煤气炉...连续气化的生物质流化床气化炉,以空气和水蒸气为气化剂,用生物质和煤为原料(煤的质量比0~20%),煤气热值为6~7 M J/m3。该炉在生产燃气的同时,还可副产水蒸气和生物质木炭,燃气可民用、工业用及发电用。间歇气化的生物质流化床水煤气炉,采用吹风和制气的二步工作法生产水煤气。水煤气的热值可达12~16 M J/m3,燃气可用于提氢和制备甲醇、二甲醚等。展开更多
基金supported by the New Energy and Industrial Technology Development Organization(NEDO)
文摘Coal-fired Integrated Gasification Combined Cycle （IGCC） and Integrated coal Gasification Fuel-cell Com- bined cycle （IGFC） are being developed as high-efficiency electric power generation technology. However, the highest theoretical gross thermal efficiency of the conventional IGCC]IGFC is still below 52~. In order to obtain higher power generation efficiency, an advanced IGCC （A-IGCC） or advanced IGFC （A-IGFC） sys- tem making use of the exergy recuperation concept by recycling waste heat from gas turbine or fuel cells for steam gasification of coal and biomass was proposed in our laboratory, Corresponding to this system, a novel high-density triple-bed combined circulating fluidized bed （TBCFB） gasifier, composed of a downer pyrolyzer, a bubbling fluidized bed char gasifier, and a riser combustor, was proposed to replace traditional gasifiers such as the entrained flow bed gasifier. The new system is expected to more effectively utilize the waste heat from gas turbines or fuel cells and the heat produced by the combustion of the unreacted char in the riser combustor for pyrolysis and gasification of coal and biomass. In this short review, the advantages and future challenges in the development of high-density TBCFB gasifier are presented and discussed.
文摘连续气化的生物质流化床气化炉,以空气和水蒸气为气化剂,用生物质和煤为原料(煤的质量比0~20%),煤气热值为6~7 M J/m3。该炉在生产燃气的同时,还可副产水蒸气和生物质木炭,燃气可民用、工业用及发电用。间歇气化的生物质流化床水煤气炉,采用吹风和制气的二步工作法生产水煤气。水煤气的热值可达12~16 M J/m3,燃气可用于提氢和制备甲醇、二甲醚等。
