A power producing system configured to utilize a flue gas output from a flue gas generating assembly, wherein the flue gas comprises carbon dioxide and oxygen and the power producing system comprises: a first heat exchanger configured to receive the flue gas output from the flue gas generating assembly, and adjust a temperature of the flue gas to be in a range of 500-650°C; a fuel cell comprising an anode section and a cathode section, the cathode section configured to receive inlet oxidant gas that contains the flue gas output from the flue gas generating assembly and configured to output cathode exhaust; a gas separation assembly configured to receive anode exhaust output from the anode section of the fuel cell and comprising: a chiller assembly configured to cool the anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the anode exhaust, and a gas separation device configured to receive chilled anode exhaust from the chiller assembly and separate liquefied carbon dioxide from residual fuel gas in the chilled anode exhaust; wherein the fuel cell and the chiller assembly are configured such that waste heat produced by the fuel cell is utilized to drive the chiller assembly, and an oxidizer configured to receive the residual fuel gas separated by the gas separation device, receive temperature adjusted flue gas from the first heat exchanger, oxidize the residual fuel gas to heat flue gas, and output heated flue gas to the cathode section of the fuel cell, and wherein the fuel cell is an internal reforming Molten Carbonate Fuel Cell. a first heat exchanger configured to receive the flue gas output from the flue gas generating assembly, and adjust a temperature of the flue gas to be in a range of 500-650°C; a fuel cell comprising an anode section and a cathode section, the cathode section configured to receive inlet oxidant gas that contains the flue gas output from the flue gas generating assembly and configured to output cathode exhaust; a gas separation assembly configured to receive anode exhaust output from the anode section of the fuel cell and comprising: a chiller assembly configured to cool the anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the anode exhaust, and a gas separation device configured to receive chilled anode exhaust from the chiller assembly and separate liquefied carbon dioxide from residual fuel gas in the chilled anode exhaust; a chiller assembly configured to cool the anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the anode exhaust, and a gas separation device configured to receive chilled anode exhaust from the chiller assembly and separate liquefied carbon dioxide from residual fuel gas in the chilled anode exhaust; wherein the fuel cell and the chiller assembly are configured such that waste heat produced by the fuel cell is utilized to drive the chiller assembly, and an oxidizer configured to receive the residual fuel gas separated by the gas separation device, receive temperature adjusted flue gas from the first heat exchanger, oxidize the residual fuel gas to heat flue gas, and output heated flue gas to the cathode section of the fuel cell, and wherein the fuel cell is an internal reforming Molten Carbonate Fuel Cell.