Patents
Patents for B01D 53 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols (135,933)
10/1981
10/13/1981CA1110538A1 Outlet means for vapor liquid contacting tray
10/13/1981CA1110537A1 Gas cleaning
10/07/1981EP0037158A1 Process for removing hydrogen cyanide from gaseous streams
10/07/1981EP0037157A2 Process for removing carbonyl sulfide from gaseous streams
10/07/1981EP0037119A1 Method for catalytic gas purification
10/07/1981EP0036938A2 Process for the preparation and use of a catalyst carrier
10/07/1981EP0036927A2 A device for the diffusion of substances between two fluids via semipermeable membranes
10/07/1981EP0036926A1 A device for the diffusion of substances between two fluids via semipermeable membranes
10/06/1981US4293531 Selective removal of H2 S from gas mixtures containing CO2 and H2 S
10/06/1981US4293521 Apparatus for cleaning waste flue gases
10/06/1981US4293447 Process for repairing plate-shaped denitrating catalysts
10/06/1981US4293419 Hollow fiber membrane separation apparatus
10/06/1981US4293418 Fluid separation apparatus
10/06/1981US4293346 Simulated countercurrent sorption process employing ion exchange resins with backflushing
10/06/1981US4293317 Fission product adsorbent impregnated with quinuclidene
10/06/1981CA1110223A1 Partially pyrolyzed polymer emulsion coagulate
10/06/1981CA1110182A1 Compressed gas filter assembly
10/01/1981WO1981002682A1 A device for the diffusion of substances between two fluids via semipermeable membranes
10/01/1981WO1981002681A1 A device for the diffusion of substances between two fluids via semipermeable membranes
09/1981
09/30/1981EP0036600A1 Method and device for gasifying liquids
09/30/1981EP0036599A1 Method and apparatus for the absorption of ozone
09/30/1981EP0036598A1 Method and device for gasifying liquids
09/30/1981EP0036569A1 Air dryer for a compressed air system
09/30/1981EP0036411A1 Sulfur oxide removal from gas.
09/29/1981US4292493 Method for decomposing ozone
09/29/1981US4292348 Coating a catalyst
09/29/1981US4292288 Using a deactivated hydrorefining catalyst comprising a noble metal as an oxidation catalyst
09/29/1981US4292287 Method for directly recovering fluorine from gas streams
09/29/1981US4292286 Acid gas scrubbing
09/29/1981US4292285 Method for removing compounds with offensive odor from a gas containing the same
09/29/1981US4292206 Use of hollow glass spheres in conjunction with rehydratable alumina for making low density catalyst support beads
09/29/1981US4292059 By-pass proof adsorber cell
09/29/1981US4292058 Swirl tube apparatus for separating gas or isotope mixtures
09/29/1981US4292054 Moving carbonaceous fill
09/29/1981US4291542 Air drying apparatus of the condensation type
09/29/1981CA1109647A1 Sulfur oxide removal from gas
09/29/1981CA1109646A1 Process for the simultaneous separation of sulfur and nitrogen oxides from a gaseous mixture
09/22/1981US4291004 Process for removing sulfur dioxide from flue gas
09/22/1981US4291003 Process for the purification of residual industrial gases containing small quantities of sulfur compounds
09/22/1981US4290981 Exchanger element for bottoms in material exchanger columns
09/22/1981US4290980 Mass exchanger with packaging
09/22/1981US4290786 Apparatus for removing particulate matter from a gas stream
09/22/1981US4290782 Gas scrubber and method
09/22/1981US4290781 Methods and apparatus for separating gases with ventilated blades
09/22/1981US4290208 Process for the dehumidification of moist air or saturated water vapor
09/22/1981CA1109446A1 Method of and apparatus for coating catalyst supports
09/22/1981CA1109233A1 Removal of phosphine contaminant from carbon monoxide gas mixtures
09/22/1981CA1109232A1 Process for the incineration of chlorinated organic materials
09/16/1981EP0035663A1 Method and apparatus for the removal of nitrous gases from gas mixtures
09/15/1981US4289809 Deactivation for better separation of polar compounds
09/15/1981US4289738 Multistage absorption with aqueous amine
09/15/1981US4289737 Reduced temperature of combustion of methane to carbon dioxide and water using alloy of rhodium and platinum; air pollution control
09/15/1981US4289730 Pollution control
09/15/1981US4289652 Catalyst comprising a metal substrate
09/15/1981US4289513 Activated sorbtion paper and products produced thereby
09/15/1981US4289508 Device for filtering and for humidifying the admission air of an internal combustion engine
09/15/1981US4289505 Solvent recovery from water
09/15/1981CA1109003A1 Dual filter assembly for compressed gas
09/15/1981CA1108854A1 Chemical dehumidification system which utilizes a refrigeration unit for supplying energy to the system
09/15/1981CA1108823A1 Separation of hydrogen sulfide from fluid streams
09/15/1981CA1108822A1 Gas purification process
09/09/1981EP0035053A1 Catalytic filter for the purification of Diesel exhaust gas
09/08/1981US4288421 Absorption into solution of iron chelate and alkali sulfite
09/08/1981US4288420 From exhaust gas, catalytic reduction, decomposition of ammonium-sulfur compounds, deashing
09/08/1981US4288414 Process for chlorinating clays and bauxite
09/08/1981US4288278 Apparatus for continuously producing pleated semipermeable membrane elements
09/08/1981US4288234 Recovery of aromatics from styrene production off-gas
09/08/1981US4287724 Air chiller/drier
09/08/1981US4287721 Chemical heat pump and method
09/08/1981CA1108379A1 Apparatus for cleaning gaseous fluids
09/08/1981CA1108378A1 Process for the purification of blow-off gas containing carbon oxides
09/03/1981WO1981002394A1 Composting system and its use in scrubbing gas effluvia
09/02/1981EP0034901A1 Acid gas scrubbing process using hindered amine solution with hindered amine recovery from side-product cyclic urea
09/01/1981US4287170 Nitrogen and oxygen via chemical air separation
09/01/1981US4287162 By scrubbing with a solution containing cations of amminia or alkali metals, and anions of phosphate or borate
09/01/1981US4287161 Method for defoaming in gas purification systems
09/01/1981US4287098 Process for the production of exhaust gas filters
09/01/1981US4287097 Carrier matrix for catalysts and a process for the production of same
09/01/1981US4286994 Method for the use of the gypsum occurring in flue gas desulfurizing installations, operated on a lime basis
09/01/1981US4286972 Vapor phase adsorption using nonstoichiometric carbon-sulfur compounds
09/01/1981US4286971 Removal of naphthalene from recirculated wash oil
09/01/1981US4286456 Gas chromatographic chamber
09/01/1981EP0036411A4 Sulfur oxide removal from gas.
09/01/1981EP0027805A4 Improved process for removal and recovery of vinyl chloride monomer from vent gas stream in polyvinyl chloride plant.
09/01/1981CA1107942A1 Gas sparging method
09/01/1981CA1107941A1 Method of refining of fibre material
08/1981
08/26/1981EP0034563A1 Method and device for the recovering of heat and for the cleaning of flue gases
08/25/1981US4285918 Air purification
08/25/1981US4285917 Method for removal of hydrogen sulfide from sour gas streams
08/25/1981US4285916 Accelerating particles for ejection through aperatures in an open contour donut-shaped purification element; catalytic conversion of waste gases; muffling
08/25/1981US4285909 Catalyst assembly for cleaning an exhaust gas
08/25/1981US4285838 Method of producing plate-shaped catalyst unit for NOx reduction of exhaust gas
08/25/1981US4285709 Liquefaction of waste gases for use as fuels
08/25/1981US4285702 Method and apparatus for the recovery of water from atmospheric air
08/25/1981CA1107747A1 Oil soluble high metal content transitional metal organic oxy, hydroxy complexes
08/25/1981CA1107662A1 Apparatus for the separation of isotopes by the separating-nozzle process
08/25/1981CA1107657A1 Hollow fiber package body and its production
08/25/1981CA1107653A1 Two-stage catalysis of engine exhaust
08/25/1981CA1107636A1 Packing with console-type elements for liquid-gas contact
08/25/1981CA1107635A1 Randomly dumpable self orienting spiral packing elements