Patent ID: 6660064
Filing Date: 2003-12-09
Classification: B01D,C01B,Y02C,Y02P,Y10S

Abstract:
A pressure swing adsorption process for recovering a product gas from a feed gas, said process comprising:supplying a multiple-bed pressure swing adsorption apparatus comprising an adsorbent composition containing activated carbon as a major ingredient, wherein said adsorbent composition and said apparatus are substantially free of zeolite adsorbents; feeding a feed gas into said pressure swing adsorption apparatus during a feed period not exceeding 20 seconds, said feed gas comprising a mixture of hydrogen and at least one other member selected from the group consisting of carbon dioxide, carbon monoxide, hydrocarbon, oxygen, methane, argon and nitrogen; and recovering said product gas from said pressure swing adsorption apparatus, provided that when said product gas is hydrogen a rate of hydrogen recovery is greater than 82%.