| abstract |
Disclosed is a chemical microreaction apparatus provided with means for generating hydrogen from a liquid source such as ammonia, methanol, or butane by a steam reforming step when mixing with an appropriate amount of water. The microreactor includes an integrated resistance heater in a microchannel to facilitate the generation of a reaction that improves the catalyst vapor. One embodiment style works with the fine passages of a packed catalyst capillary and at least one porous membrane. Other embodiments of the style work with a porous membrane support structure that includes a large surface area of the porous membrane, or a large number of porous membranes greater than the large surface area of the condensate, ie, about 1 m 2 / cm 3 . Various methods of forming the capillary microchannels of the packed catalyst, the porous membrane, and the porous membrane support structure are also disclosed. |