HYDROGEN GENERATING APPARATUS AND FUEL CELL SYSTEM

摘要

A hydrogen generating apparatus comprising combustion gas duct (5) for flow of combustion gas from a combustor; preheater evaporator (6) adapted to be fed with raw gas and water and to evaporate the water and heat the raw gas by heat transferred via partition walls from carbon monoxide cutdown unit (10) and the combustion gas duct; reformer (7) adapted to produce a reformate gas from the raw gas and steam fed from the preheater evaporator with the use of reforming catalyst (8) and heat transferred via partition wall from the combustion gas duct; carbon monoxide cutdown unit (10) adapted to remove any carbon monoxide contained in the reformate gas fed from the reformer with the use of carbon monoxide removing catalyst (9); and tubular body (3) having its both ends closed wherein, dividing the interior space thereof by partition walls (1),(2)(30),(47), the combustion gas duct, preheater evaporator, reformer and carbon monoxide cutdown unit are provided thereinside. Between the preheater evaporator and the carbon monoxide cutdown unit, there is provided heat transfer buffer part (11) composed of partition wall (30) defining the preheater evaporator and partition wall (47) defining the carbon monoxide cutdown unit, disposed opposite to each other with a spacing therebetween.