Method of operating a waste-to-energy plant having a waste boiler and gas turbine cycle

A method of efficiently operating a waste to energy facility in a manner which reduces boiler plant corrosion comprising:

• a) combusting municipal, commercial or industrial waste to form waste combustion gas;
• b) flowing said waste combustion gas into a waste heat recovery boiler to generate saturated steam at a pressure of at least 1000 psia;
• c) combusting fuel to generate fuel combustion gas;
• d) flowing the fuel combustion gas through a combustion turbine which converts the fuel combustion gas into combustion turbine exhaust gas;
• e) powering a first electrical generator by means of connection to said combustion turbine;
• f) flowing the saturated steam at a pressure of at least 1000 psia through one side of a super-heater and flowing all of the combustion turbine exhaust gas through the other side of the superheater, wherein said steam at a pressure of at least 1000 psia is superheated to a temperature at least 200.degree. F. above the saturation temperature;
• g) flowing said superheated steam at a pressure of at least 1000 psia through a steam turbine;
• h) powering a second electrical generator by means of connection to said steam turbine;
• and
• i) flowing all of the combustion turbine exhaust superheater to a combustion turbine exhaust gas heat recovery unit.