# US 5,348,922 A · Gas adsorbing element and method for forming same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,348,922 A - Document ID: US5348922A - Status: Granted - Kind: A - Application number: 07/793,372 - Filed: 1992-07-14 - Granted: 1994-09-20 - Earliest claimed: 1990-05-02 - Assignees: Seibu Giken Co., Ltd. - Inventors: Toshimi Kuma - Web page: https://patentgrep.com/patent/US5348922A ## CPC - B01J 20/28045: {Honeycomb or cellular structures; Solid foams or sponges} - B01J 20/28011: {Other properties, e.g. density, crush strength} - B01J 20/28028: {Particles immobilised within fibres or filaments} - B01J 20/28033: {Membrane, sheet, cloth, pad, lamellar or mat} - F24F 3/1423: {with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants} - F24F 2203/1004: Bearings or driving means - F24F 2203/1036: Details - F24F 2203/1048: Geometric details - F24F 2203/1056: comprising a reheater - F24F 2203/1068: comprising one rotor - F24F 2203/1084: comprising two flow rotor segments - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) ## Abstract A gas adsorbing element is formed into a honeycomb-shaped laminate having many small channels penetrating from one end surface to the other and in which hydrophobic high silica zeolite powder is exposed on the walls of the small channels. The hydrophobic high silica zeolite is, for example, a zeolite which is produced by removing most of the aluminum component from an ordinary zeolite. In forming the honeycomb-shaped laminate, it is favorable that non-flammable sheets are laminated and the laminate is impregnated with a dispersion of high silica zeolite powder and with an inorganic binder, and that the high silica zeolite powder is fixed in fiber gaps and on the surface of the non-flammable paper. It is desirable that the non-flammable sheet is a low density inorganic fiber paper and is baked either before or after forming the honeycomb-shaped laminate. This element adsorbs little water vapor even when the process air is highly humid, and is able to adsorb and remove organic solvent vapor and bad odor material in the air with high efficiency. ## Claims ### Claim 1 A gas adsorbing element comprising: a honeycomb-shaped laminate having many small channels penetrating from a first end surface to a second end surface, including a hydrophobic high silica zeolite powder placed on walls of said small channels, said high silica zeolite having the composition of xM.sub.2 /.sub.n O--Al.sub.2 O.sub.3.yS.sub.i O.sub.2.zH.sub.2 O, where M is an alkaki metal or alkaline-earth metal, n is its valence, and y is a mol ratio of silica and aluminum which is greater than approximately 8. ### Claim 2 (depends on 1) A gas adsorbing element according to claim 1, wherein high silica zeolite is zeolite from which most of an aluminum component is removed. ### Claim 3 A method of manufacturing a gas adsorbing element, comprising the steps of: (a) laminating sheets having a main component of inorganic fiber to form single-faced corrugated sheets; (b) laminating the single-faced corrugated sheets to form a honeycomb-shaped laminate having a shape of a gas adsorbing element having many small channels; and (c) fixing hydrophobic high silica zeolite powder in fiber gaps and on the wall of the small channels in which a mol ratio of silica and alumina is more than approximately 8:1 using an inorganic binder. ### Claim 4 (depends on 3) A method of manufacturing a gas adsorbing element according to claim 3, wherein high silica zeolite in said step (c) is zeolite from which most of an aluminum component is removed. ### Claim 5 (depends on 3) A method of manufacturing a gas adsorbing element according to claim 3, wherein the sheets in said step (a) are low density papers. ### Claim 6 (depends on 3) A method of manufacturing a gas adsorbing element according to claim 3, wherein the inorganic fiber paper in said step (a) is baked either before or after forming the honeycomb-shaped laminate. ### Claim 7 (depends on 3) A method of manufacturing a gas adsorbing element according to claim 3, wherein the thickness of the inorganic fiber sheet is approximately 0.10.about.0.30 mm, the wavelength of the corrugate is approximately 2.5 to 4.5 mm, the wave height of the corrugate is approximately 1.0 to 3.0 mm, and the length of the small channels is approximately 100 to 500 mm. ### Claim 8 (depends on 4) A method of manufacturing a gas adsorbing element according to claim 4, wherein the sheets in said step (a) are low density papers. ### Claim 9 (depends on 4) A method of manufacturing a gas adsorbing element according to claim 4, wherein the inorganic fiber sheets in said step (a) are baked either before or after forming the block. ### Claim 10 (depends on 4) A method of manufacturing a gas adsorbing element according to claim 4, wherein the thickness of the inorganic fiber sheets is approximately 0.10.about.0.30 mm, the wavelength of the corrugate is approximately 2.5 to 4.5 mm, the wave height of the corrugate is approximately 1.0 to 3.0 mm, and the length of the small channels is approximately 100 to 500 mm. ### Claim 11 (depends on 5) A method of manufacturing a gas adsorbing element according to claim 5, wherein the inorganic fiber sheets in said step (a) are baked either before or after forming the block. ### Claim 12 (depends on 5) A method of manufacturing a gas adsorbing element according to claim 5, wherein the thickness of the inorganic fiber sheets is approximately 0.10.about.0.30 mm, the wavelength of the corrugate is approximately 2.5 to 4.5 mm, the wave height of the corrugate is approximately 1.0 to 3.0 mm, and the length of the small channels is approximately 100 to 500 mm. ### Claim 13 (depends on 6) A method of manufacturing a gas adsorbing element according to claim 6, wherein the thickness of the inorganic fiber sheets is approximately 0.10.about.0.30 mm, the wavelength of the corrugate is approximately 2.5 to 4.5 mm, the wave height of the corrugate is approximately 1.0 to 3.0 mm, and the length of the small channels is approximately 100 to 500 mm. ### Claim 14 A method of manufacturing a gas adsorbing element, comprising the steps of: (a) laminating sheets having a main component of inorganic fiber to obtain laminated sheets; (b) forming the laminated sheets into a honeycomb structure having many small channels; (c) impregnating the honeycomb structure with a dispersion of high silica zeolite powder in which a mol ratio of silica and alumina is more than approximately 8:1 and with an inorganic binder; (d) fixing the high silica zeolite powder in fiber gaps in the honeycomb structure; and (e) baking the laminated sheets before or after forming the honeycomb shaped structure.