| abstract |
The purpose of the present invention is to improve the rate of recovery of an object of purification gas from a gas purification device that uses a PSA device, and to achieve both purity and a good recovery rate with good power efficiency. Provided is a gas purification method using a PSA method, wherein, as an adsorbent, used is a carbon molecular sieve in which, when micropore distribution is measured by the MP method, micropore size distribution is such that the micropore volume in a micropore size of at least 0.38nm is not more than 0.05cm |