COMBINED GENERATION SYSTEM AND METHOD FOR COLLECTING CARBON DIOXIDE FOR COMBINED GENERATION SYSTEM

A combined generation system according to one embodiment of the present invention comprises: a natural gas synthesizing apparatus for receiving coal and oxygen, generating synthetic gas by a gasifier, and permitting the synthetic gas to pass through a methanation reactor so as to synthesize methane; a fuel cell apparatus for receiving fuel that contains methane from the natural gas synthesizing apparatus and generating electrical energy; and a generating apparatus for producing electrical energy using the fluid discharged from the fuel cell apparatus