Zero emissions closed rankine cycle power system

A zero emissions power generation system featuring carbon dioxide recirculation with the fuel, comprising in combination:

• a source of oxidizer, the oxidizer being a majority oxygen;
• a source of hydrocarbon fuel, the fuel being capable of combustion with oxygen to produce elevated temperature products of combustion including water and carbon dioxide;
• a combustor having an oxidizer inlet downstream from said source of oxidizer, a fuel inlet downstream from said source of fuel, said combustor adapted to combust the fuel with the oxygen to produce the elevated temperature products of combustion, and an outlet adapted to release the elevated temperature products of combustion from the combustor;
• an expander located downstream from said combustor outlet, said expander adapted to expand the products of combustion, and having a discharge;
• and
• wherein said source of fuel includes both hydrocarbon fuel and carbon dioxide, at least a portion of the carbon dioxide in said source of fuel being carbon dioxide formed as a product of combustion of the hydrocarbon fuel with oxygen within said combustor.

An oxy-fuel combustion power generation system with at least partially CO2 recirculating sequestration, comprising in combination:

• a combustor having a fuel inlet and an oxidizer inlet;
• said combustor adapted to combust the hydrocarbon fuel from said fuel inlet with oxygen from said oxidizer inlet to produce products of combustion including water and carbon dioxide;
• an expander adapted to expand the products of combustion and output power from the system;
• a condenser adapted to condense water within the products of combustion from a gaseous phase to a liquid phase, said condenser including a liquid outlet for primarily water and a gaseous outlet for primarily carbon dioxide;
• a carbon dioxide injector adapted to put CO2 from said condenser into a hydrocarbon fuel reservoir;
• a hydrocarbon fuel well accessing said hydrocarbon fuel reservoir, said hydrocarbon fuel well adapted to remove a combination of hydrocarbon fuel and carbon dioxide from said hydrocarbon fuel reservoir, at least a portion of the carbon dioxide removed by said hydrocarbon fuel well being carbon dioxide put into said hydrocarbon fuel reservoir by said carbon dioxide injector;
• and
• wherein said fuel inlet of said combustor is coupled to a source of fuel including at least a portion of the carbon dioxide with the hydrocarbon fuel at the well, such that the carbon dioxide in the hydrocarbon fuel reservoir and removed therefrom through the hydrocarbon fuel well is at least partially routed into the combustor along with said hydrocarbon fuel at said fuel inlet.