METHOD FOR THE RECOVERY OF HIGH CONCENTRATIONS CO2 OF EFFICIENCY INTEGRATED COAL GASIFICATION FUEL CELL COMBINED CYCLE (IGFC) SYSTEM

摘要

PURPOSE: A method for collecting CO2 with a high concentration for an integrated coal gasification fuel cell system is provided to obtain high efficiency and to reduce investment costs by not including aqueous gas conversion process and carbon dioxide collection process. CONSTITUTION: A method for collecting CO2 with a high concentration for an integrated coal gasification fuel cell system comprises a process for supplying coal and high concentrated oxygen to a gasification apparatus(S100); a raw-material-feeding process cooling a synthetic gas in which a part of ash and slag are removed(S200); a high temperature dust-collecting process for removing the remaining ash(S300); a vulcanization process for removing sulfur compounds(S400); a fuel battery process for introducing the synthetic gas and high concentrated oxygen into a fuel cell(S500); a combustion process for supplying the high concentrated oxygen to combust unreacted carbon monoxide and hydrogen; and a process for obtaining carbon dioxide. [Reference numerals] (1) Coal; (10) Fuel cell; (11) Combustor; (12) High temperature dust collector; (13) High temperature desulfurizing facility; (2) Oxygen(>95%); (3) Gasifier; (4) Heat collector; (9) Air separating device; (AA) Air; (BB) Removing dust; (S100) Raw material supplying process; (S200) Heat collecting process; (S300) High temperature dust-collecting process; (S400) High temperature desulfurizing process; (S500) Fuel cell process; (S600) Combusting process;