Provided is an exhaust purification apparatus for an internal combustion engine capable of reducing the quantity of a catalytic noble metal used in a catalytic converter without reducing the purification performance. A catalytic converter unit (3) contains...

The main body 1a of the heat accumulation element 1 has a honeycomb structure, and fluid passages 11 where a fluid circulates and heat accumulating medium portions 12 (formed by plugging in both the end faces) where a medium for storing heat is enclosed ar...

A method for preparing a catalyst for preferential oxidation to remove carbon monoxide from a hydrogen-rich gas stream, comprising: forming an impregnated support material by impregnating a metal oxide or a mixture of metal oxides with a soluble rare earth...

A process for catalytically generating hydrogen and a process for operating a fuel cell system is disclosed. The catalyst is prepared by the following process steps: a) forming an impregnated support material by impregnating a metal oxide or a mixture of m...