001Durr Environmental, Inc.Rotating adsorbent media; passing inlet gas stream including removable adsorbable pollutants over media in adsorbent zone for removing adsorbent pollutants; passing in desorbent zone; processing gas containing adsorbent pollutantsUS6328787 *22 Dec 199911 Dec 2001Seibu Giken Co., Ltd.For adsorbing and concentrating gases, such as volatile organic compounds and other gases