Patent attributes
A PSA apparatus for high-purity hydrogen gas production is provided which can recover high purity hydrogen gas at a high recovery rate from a reformed gas (hydrogen-containing gas) produced by a reforming process, for example an autothermal reforming process, and containing, as impurity components, at least CO, CO2, N2 and/or Ar, and can contribute to reducing the equipment size, hence reducing the equipment cost. The PSA apparatus for high-purity hydrogen gas B production by removing CO, CO2 and N2 by adsorption from a hydrogen containing gas A, comprises an adsorption tower 1; and an adsorbent bed 2 in the adsorption tower, wherein, on the occasion of regeneration of the adsorbent bed 2, a purge gas C is passed through in the direction opposite to the direction of passage of the hydrogen-containing gas A.
