PSA pressure swing adsorption tower and adsorption process for hydrogen production

Abstract

This invention relates to the field of gas separation technology, and discloses a PSA (Pressure Swing Adsorption) tower and adsorption process for hydrogen production. The PSA tower for hydrogen production includes an adsorption tower body, an inlet at the bottom of the tower body, an outlet at the top, packing holes, and adsorption units filled within the tower body. It also includes a distribution mechanism disposed within the tower body and above the inlet. The distribution mechanism includes a disc fixedly connected to the inner wall of the tower body, multiple sets of gas distribution channels within the disc, a base fixedly connected to the bottom of the disc, and multiple sets of gas delivery channels within the base. The multiple sets of gas distribution channels are distributed in a ring with equal spacing outwards from the center of the disc. Each gas delivery channel corresponds to and is interconnected with one of the gas distribution channels, and adjacent sets of gas delivery channels are connected by connecting channels. This invention, by setting up a distribution mechanism, helps to improve the purification efficiency of hydrogen and enhances the adsorption capacity for pollutants in the gas.

Images