Process for generating power and/or heat comprising a mixed conducting membrane reactor

A process for generating heat or power, or both, comprising:

• providing a membrane reactor, the membrane reactor comprising a first feed side surface and a second oxidation side surface, the first and second surfaces being connected by a mixed oxygen ion and electron conducting membrane, wherein oxygen contacting the first feed side surface is reduced to oxygen ions, wherein the oxygen ions are conducted through the conducting membrane to the second oxidation side surface, and wherein the oxygen ions are oxidized to oxygen at the second oxidation side surface,
• supplying an air stream to the first feed side surface of the membrane reactor, wherein oxygen contained in the air stream is reduced to oxygen ions, which oxygen ions are conducted by the conducting membrane to the second oxidation side surface of the membrane reactor,
• mixing a carbon containing fuel and a recycled CO2—H2O containing exhaust gas,
• supplying the mixture of carbon containing fuel and recycled CO2—H2O containing exhaust gas to the second oxidation side surface of the membrane reactor, wherein the mixture is contacted with the oxygen ions on the second oxidation side surface to oxidize the oxygen ions to oxygen,
• causing a combustion of the oxygen and mixture of carbon containing fuel and recycled CO2—H2O containing exhaust gas, which combustion generates a CO2—H2O containing exhaust gas, and
• feeding the CO2—H2O containing exhaust gas to a recovery system for heat or power, or both, thereby generating heat or power, or both.