Method of Decomposing Gas Hydrate, and Apparatus Therefor, in Gas Turbine Combined Power Generation System

Abstract

A gas turbine combined power generation system using, as a fuel, gas (c) generated by decomposition of gas hydrate (h). The system includes a pump ( 19 ) for circulating condensate (n) produced by a condenser ( 10 ) to the vapor inlet side of the condenser, a heat exchanger ( 11 ) for exchanging heat between the circulating condensate (r) and circulating water (i) supplied to decompose the gas hydrate (h), and a pump ( 26 ) for circulating the circulating water to a decomposition tank ( 32 ) for the gas hydrate (h).

1 . A method of decomposing gas hydrate in a gas turbine combined power generation system, the gas turbine combined power generation system using, as a fuel, gas generated by decomposition of gas hydrate, and the method comprising the steps of:
 circulating condensate generated in a condenser to the vapor inlet side of the condenser;   exchanging heat between the circulating condensate and circulating water supplied to decompose gas hydrate; and   using the heat-exchanged circulating water to decompose gas hydrate.   
   
   
       2 . An apparatus for decomposing gas hydrate in a gas turbine combined power generation system, the gas turbine combined power generation system using, as a fuel, gas generated by decomposition of gas hydrate, and the apparatus comprising:
 a pump that circulates condensate generated in a condenser to the vapor inlet side of the condenser;   a heat exchanger that causes heat to be exchanged between the circulating condensate and circulating water supplied to decompose gas hydrate; and   a pump that circulates the circulating water to a gas hydrate thermal decomposition tank.