Novel fuel production plant and seawater desalination system for use therein

Abstract

A novel fuel producing section produces synthesized gas from a feedstock and synthesizes novel fuel from the synthesized gas thus produced, and has exhaust heat recovery boilers for generating steam by recovering excess heat generated from the synthesizing processes. An exhaust heat utilizing section includes steam turbines driven with the steam generated from the exhaust heat recovery boilers. An open circulation cooling water supply section supplies cooling water for a plant, including water for cooling exhausts of the steam turbines, and includes a seawater desalination system for desalinating seawater by the evaporation method and supplying desalinated water to replenish the cooling water. The cooling water supplied from the open circulation cooling water supply section is used in condensing of the desalinated water produced by the seawater desalination system.

1 . A novel fuel production plant for producing synthesized gas from a feedstock and producing novel fuel from the produced synthesized gas, said novel fuel production plant comprising an exhaust heat recovery boiler for generating steam by recovering excess heat generated from the fuel production processes, said novel fuel production plant further comprising: 
 an exhaust heat utilizing section including a steam turbine driven with the steam generated from said exhaust heat recovery boiler,    an open circulation cooling water supply section for supplying cooling water for a plant, including water for cooling exhaust of said steam turbine, and a seawater desalination system using an evaporation method with steam utilized as a heat source and supplying desalinated water to replenish the open circulation cooling water,    wherein the cooling water supplied from said open circulation cooling water supply section is used in condensing of the desalinated water produced by said seawater desalination system.    
   
   
       2 . The novel fuel production plant according to  claim 1 , wherein the evaporation method used in said seawater desalination system is a multistage flash method, a multiple effect method, or a combination of both the methods.  
   
   
       3 . The novel fuel production plant according to  claim 1 , wherein a gas turbine is used to drive a machine to be driven.  
   
   
       4 . The novel fuel production plant according to  claim 3 , further comprising a gas turbine exhaust heat boiler for generating steam with exhaust heat of said gas turbine, 
 wherein the steam generated by said gas turbine exhaust heat boiler is supplied to said exhaust heat utilizing section.    
   
   
       5 . The novel fuel production plant according to  claim 1 , further comprising a heat exchanger for performing heat exchange between brine discharged from said seawater desalination system and seawater as feed material supplied to said seawater desalination system.  
   
   
       6 . The novel fuel production plant according to  claim 1 , wherein a water production rate of said seawater desalination system is modified such that excess steam generated in said plant is consumed as a heat source for said seawater desalination system.  
   
   
       7 . A seawater desalination system for desalinating seawater by using an evaporation method with steam utilized as a heat source and supplying desalinated water, 
 wherein cooling water supplied from an open circulation cooling water supply section is used in condensing of the desalinated water produced by said seawater desalination system.