초록 ▼

A solid electrolyte fuel cell power generating system comprising a solid electrolyte fuel cell containing an anode, an anode fuel inlet and an anode exhaust gas outlet, a fuel source in communication with the anode inlet, a cathode, a cathode oxidant inlet and a cathode exhaust oxidant outlet, an ox

A solid electrolyte fuel cell power generating system comprising a solid electrolyte fuel cell containing an anode, an anode fuel inlet and an anode exhaust gas outlet, a fuel source in communication with the anode inlet, a cathode, a cathode oxidant inlet and a cathode exhaust oxidant outlet, an oxidant source in communication with the cathode oxidant inlet, and means for recycling at least part of an exhaust gas stream emanating from the anode exhaust gas outlet to the anode fuel inlet. Such means comprise a heat exchanger in communication with the anode exhaust gas outlet, a condenser in communication with the heat exchanger and a combustor in communication with the heat exchanger and the anode fuel inlet. Preferably, the system includes a reformer in communication with the anode exhaust gas outlet and the heat exchanger.

대표청구항 ▼

[ What is claimed is:] [3.]3. A method of operating a solid electrolyte fuel cell power generating system which utilizes hydrogen or a gaseous hydrocarbon as a fuel source and an oxidant source, said fuel cell containing an anode, an anode fuel inlet in communication with the fuel source and an anod

[ What is claimed is:] [3.]3. A method of operating a solid electrolyte fuel cell power generating system which utilizes hydrogen or a gaseous hydrocarbon as a fuel source and an oxidant source, said fuel cell containing an anode, an anode fuel inlet in communication with the fuel source and an anode exhaust gas outlet, a cathode, a cathode oxidant inlet in communication with the oxidant source and a cathode exhaust oxidant outlet, which comprises:a) passing at least part of an anode exhaust gas stream which emanates from the anode exhaust gas outlet through a first heat exchanger;b) condensing water vapor from the anode exhaust gas stream at a condensing temperature below the temperature of the anode exhaust gas stream at the anode exhaust gas outlet;c) blowing the gas stream emanating from said first heat exchanger at low temperature through a combustor; andd) recycling the combusted gas to the anode fuel inlet.