Dehydrogenation of butane dehydrogenation mainly used to form a synthetic acrylic or butadiene synthetic rubber as raw materials; the formation of isopentenyl dehydrogenation synthetic isoprene rubber as a raw material; the dehydrogenation of ethylbenzene into styrene synthetic resin made , synthetic fiber raw materials, etc.; the direct oxidation of methanol to formaldehyde is also a dehydrogenation process.