(JP4035722-A)      A new CO2 recovery plant uses the molten carbonate fuel cell system where CO2-contg. gas and air are supplied to the cathode, a gas rich in CO2 is taken out of the anode, and the gas is introduced into a CO2 sepg. device which is connected to the anode. A method of operating the plant is also claimed, where the mol. ratio of the CO2 -contg. gas to air is kept within 1-0.65 and the gas from the anode is dehydrated and introduced into the CO2 separating device. In another method 20-40 % CO2 are recovered by CO2 sepg. device.    USE/ADVANTAGE -   Used to recover CO2 from waste gas discharged from thermal power plants. CO2 can be recovered with a higher efficiency while keeping a higher output of the fuel cell.    (US5232793-A)      CO2 is recovered from combustion exhaust gas of fossil fuel using combustion equipment, a molten carbonate fuel cell and a reformer. The fuel cell has an anode, anode chamber, cathode, cathode chamber and electrolyte. The reformer has a reforming chamber and combustion chamber.    The process comprises (a) supplying anode gas to the anode chamber and oxidising gas supplied to the cathode chamber, (b) feeding combustion gases to the cathode chamber as part of the oxidising gas, (c) reacting part of the CO2 in the combustion gases with O2 of the oxidising gas at the cathode, (d) passing the obtd. carbonate ion through the electrolyte, (e) reacting the carbonate ion with H2 of the fuel gas at the anode to produce CO2 and H2O, (f) discharging gases contg. CO2, H2O, unreacted H2 and CO from the anode chamber, (g) feeding the gases to the combustion chamber to be burned and (h) sepg. H2O from the anode exhaust gas from the combustion chamber and recovering high concn. CO2 gas.    ADVANTAGE -   Vol. of CO2 released to the atmos. is minimised.    (JP95059292-B2)      Utilising and recovering carbon dioxide in combustion exhaust gas by recovering carbon dioxide gas from combustion exhaust gas (G) of fossil fuel, using a fossil fuel combustion equipment (II), a molten carbonate fuel cell (FC) and a reformer (6), the fuel cell (FC) having anode (A), anode chamber (3), cathode (C), cathode chamber (2) and electrolyte (1) and the reformer (6) having a reforming chamber (6a) and a combustion chamber (6b), comprises (a) supplying anode gas to the anode chamber (3) of the fuel cell (FC) and oxidising gas supplied to the cathode chamber (2); (b) feeding gases (G) produced upon combustion (called ''combustion exhaust gas'') to the cathode chamber (2) as part of the oxidising gas; (c) allowing carbon dioxide of the combustion exhaust gas (G) to react with oxygen of the oxidising gas at the cathode to produce carbon ion;    (d) allowing the carbonate ion to pass through the electrolyte (1) of the fuel cell (FC) and reach the anode (A); (e) allowing the carbonate ion to react with hydrogen of the fuel gas at the anode (A) tO Droduce carbon dioxide and water; (f) discharging gases (8) produced at the anode (A) (called ''anode exhaust gas'') from the anode chamber (3), which gases contain carbon dioxide, water vapour, unreacted hydrogen and carbon monoxide; (g) feeding the anode exhaust gas (8) to the combustion chamber (6b) of the reformer (6) as combustible gas to be burned in the combustion chamber (6b) of the reformer (6); and (h) sepg. water vapour from the anode exhaust gas (8) expelled from the combustion chamber (6b) of the reformer (6) and recovering high-concn. carbon dioxide gas.    ADVANTAGE -   The method and appts. recover carbon dioxide contained in combustion exhaust gas discharged from combustion equipment of fossil fuel to minimise the vol. of carbon dioxide released to atmosphere, and to use the carbon dioxide for cell reactions of a molten carbonate fuel cell. @(20pp Dwg.No.1/10)@    (JP2932613-B2)      Utilising and recovering carbon dioxide in combustion exhaust gas by recovering carbon dioxide gas from combustion exhaust gas (G) of fossil fuel, using a fossil fuel combustion equipment (II), a molten carbonate fuel cell (FC) and a reformer (6), the fuel cell (FC) having anode (A), anode chamber (3), cathode (C), cathode chamber (2) and electrolyte (1) and the reformer (6) having a reforming chamber (6a) and a combustion chamber (6b), comprises (a) supplying anode gas to the anode chamber (3) of the fuel cell (FC) and oxidising gas supplied to the cathode chamber (2); (b) feeding gases (G) produced upon combustion (called ''combustion exhaust gas'') to the cathode chamber (2) as part of the oxidising gas; (c) allowing carbon dioxide of the combustion exhaust gas (G) to react with oxygen of the oxidising gas at the cathode to produce carbon ion;    (d) allowing the carbonate ion to pass through the electrolyte (1) of the fuel cell (FC) and reach the anode (A); (e) allowing the carbonate ion to react with hydrogen of the fuel gas at the anode (A) tO Droduce carbon dioxide and water; (f) discharging gases (8) produced at the anode (A) (called ''anode exhaust gas'') from the anode chamber (3), which gases contain carbon dioxide, water vapour, unreacted hydrogen and carbon monoxide; (g) feeding the anode exhaust gas (8) to the combustion chamber (6b) of the reformer (6) as combustible gas to be burned in the combustion chamber (6b) of the reformer (6); and (h) sepg. water vapour from the anode exhaust gas (8) expelled from the combustion chamber (6b) of the reformer (6) and recovering high-concn. carbon dioxide gas.    ADVANTAGE -   The method and appts. recover carbon dioxide contained in combustion exhaust gas discharged from combustion equipment of fossil fuel to minimise the vol. of carbon dioxide released to atmosphere, and to use the carbon dioxide for cell reactions of a molten carbonate fuel cell.