Fixed and fluidized bed water gas shift reactor using syngas from waste gasification and hydrogen production method using the same

A fixed and fluidized bed water gas shift reactor using syngas, which converts carbon monoxide in the syngas, generated from gasification of combustible waste, into hydrogen, comprising:

• a gas reaction tank including a reaction chamber formed in the shape of a hollow body provided with a porous plate installed in a lower portion thereof to divide the inside of the reaction chamber into an upper reaction space and a lower collection space and a catalyst stacked on the upper surface of the porous plate to convert carbon monoxide into hydrogen, and an insulating layer provided at the outer surface of the reaction chamber to prevent heat in the reaction chamber from being discharged to the outside of the reaction chamber;
• a syngas storage tank to store the syngas obtained by the gasification of the combustible waste;
• a syngas supply pipe to supply the syngas to the gas reaction tank, after the syngas from the syngas storage tank is heated by a preheater;
• a steam supply pipe to supply steam generated from a steam generator to the gas reaction tank such that the steam reacts with the syngas, after the steam is heated by a preheater;
• and
• a reaction gas discharge pipe installed opposite to the syngas supply pipe to discharge reaction gas obtained by a reforming reaction in the gas reaction tank,
• wherein a temperature measuring unit is connected to each of the upper reaction space, a catalyst stack space, and the lower collection space of the gas reaction tank, and a steam injection pipe is connected to the side surface of the upper reaction space such that a reaction temperature in the gas reaction tank is regulated by supplying steam of a low temperature according to the temperature of the temperature sensing unit of each of the spaces through a controller.