US 11,988,114 B2
H2 boiler for steam system
David McDeed, Altamonte Springs, FL (US)
Assigned to Mitsubishi Power Americas, Inc., Lake Mary, FL (US)
Filed by Mitsubishi Power Americas, Inc., Lake Mary, FL (US)
Filed on Apr. 11, 2023, as Appl. No. 18/133,355.
Claims priority of provisional application 63/333,320, filed on Apr. 21, 2022.
Prior Publication US 2023/0340896 A1, Oct. 26, 2023
Int. Cl. F01K 25/00 (2006.01); F01K 3/20 (2006.01); F01K 3/26 (2006.01); F01K 7/18 (2006.01); F01K 9/00 (2006.01)
CPC F01K 25/005 (2013.01) [F01K 3/20 (2013.01); F01K 3/262 (2013.01); F01K 7/18 (2013.01); F01K 9/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power plant comprising:
a hydrogen fuel supply;
an oxygen fuel supply;
a water supply;
a boiler comprising:
a burner for combusting hydrogen from the hydrogen fuel supply and oxygen from the oxygen fuel supply to produce heat and combustion products with a combustion process;
a first heat exchanger configured to heat water from the water supply to generate high-pressure steam; and
a second heat exchanger; and
a steam turbine comprising:
a first turbine configured to be driven only with the high-pressure steam from the first heat exchanger to provide input to a first electrical generator and to deliver a first stream of expanded high-pressure steam to the boiler for generating low pressure steam in the combustion process and a second stream of expanded high-pressure steam to the second heat exchanger; and
a second turbine configured to be driven by intermediate-pressure steam from the second heat exchanger and low-pressure steam from the boiler, wherein the intermediate-pressure steam and the low-pressure steam are introduced into an inlet of the second turbine.