TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The fuel feed stream comprises fuel(s). The system includes heat exchanger receiving and heating the fuel feed stream using the anode exhaust stream from fuel cell assembly. The fuel cell is solid oxide fuel cells (preferred), molten carbonate fuel cells, regenerative fuel cells, or protonic ceramic fuel cells. A portion(s) of anode exhaust stream is recycled back to the anode inlet after separation of hydrogen. The anode exhaust stream includes carbon monoxide, carbon dioxide, unreacted fuel, and water. The separation unit comprises carbon dioxide separator to separate carbon dioxide from anode exhaust stream. The carbon dioxide separator is chemical absorber, pressure swing adsorber, cryogenic separator, membrane separator, or carbon dioxide liquefier. The separation unit includes low temperature shift reactor for converting carbon monoxide to carbon dioxide and hydrogen separator. The carbon dioxide is separated from the anode exhaust stream in location(s). The location(s) is location prior to the low temperature shift reactor, and/or location after low temperature shift reactor. The hydrogen separator comprises membrane(s). The separation unit includes moisture separator to separate water from anode exhaust stream. The moisture separator is condenser, molecular sieve bed, or chiller.Preferred Parameters: The fuel cell assembly is operated at 0.7-0.85 volts. The fuel cell assembly is operated in low utilization mode where fuel feed stream is consumed at a rate less than or equal to70%. The fuel cell assembly is operated in enhanced hydrogen production mode.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The mole fraction of hydrogen at the anode outlet is 0.1-0.5. The oxidant is air.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The mole fraction of hydrogen at the anode outlet is 0.1-0.5. The oxidant is air.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The fuel is natural gas, methane, or coal derived gas.