DEVICE FOR HYDROGEN RECOVERY

摘要

PURPOSE: A device for recovering hydrogen generated by decomposition of hydrocarbon gas with steam is provided. CONSTITUTION: The hydrogen-recovering device has a box-shaped frame(11) made of stainless steel having a takeout pipe(12) attached to its one side. A plurality of spacers(13) are arranged inside the box-shaped frame(11) along a lengthwise direction of the device. A perforated metal plate(14) is fixed to each surface of the box-shaped frame(11), and a hydrogen-permeating membrane(16) cladded with a membrane holder(15) is further fixed to the perforated metal plate(14). Hydrogen gas as a decomposition product of hydrocarbon selectively passes through the hydrogen-permeating membrane(16) and flows through the takeout pipe(12) to the outside. A tubular device, which has the structure that a hydrogen-permeable membrane is fixed to a perforated metal plate wound around a tubular frame, is also proposed. The device is light and strong, so that it is installed in a gas-reforming plant without use of a fixing jig.