| abstract |
An adsorbent medium is provided in the concentration system and has a pore volume / medium volume of at least about 0.12 pore volume cc / medium cc, a specific heat capacity of less than about 2.9 J / pore volume cc, and about 500 ft / min. Has a pressure drop of less than about 4.0 inH 2 O / medium ft at gas superficial velocity. The extruded honeycomb adsorbent medium has a cell density (cspi) of greater than about 200 cells per square inch, a% open area of at least about 50%, an activated carbon content of at least about 50% by weight based on the total weight, and about 500 ft / min. With a pressure drop of less than about 4.0 inH 2 O / medium ft. |