| 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) |
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| 07/12/1994 | CA2000906C Exhaust gas-purifying catalyst and process for purifying exhaust gases |
| 07/07/1994 | WO1994014703A1 Method for desulfurizing a gas |
| 07/07/1994 | WO1994014525A1 Method for desulfurizing a gas and absorbent suitable for this method |
| 07/07/1994 | WO1994014524A1 Devolatilizing and stabilizing vaporous pollutants |
| 07/07/1994 | WO1994014523A1 Method of treating contaminated media in dust form |
| 07/07/1994 | WO1994014503A1 Toxic material disposal |
| 07/07/1994 | DE4244513A1 Cleaning exhaust gases from smoking plants to give ecologically compatible end prods. |
| 07/07/1994 | DE4242298A1 Smoke gases cleaned by passing through large sludge-filled trap like that of wash basin |
| 07/07/1994 | CA2152081A1 Toxic material disposal |
| 07/07/1994 | CA2112823A1 Purification system using heat of compression |
| 07/07/1994 | CA2111554A1 Multistage membrane control system and process |
| 07/06/1994 | EP0605291A1 Deodorisation device, by catalytic destruction of organic compounds in air to be purified |
| 07/06/1994 | EP0605274A1 Composition based on a mixed oxide of cerium and zirconium, preparation and use |
| 07/06/1994 | EP0605251A1 Exhaust gas cleaner |
| 07/06/1994 | EP0605249A1 Engine exhaust system |
| 07/06/1994 | EP0605237A1 Exhaust gas cleaner |
| 07/06/1994 | EP0604987A1 Removal of nitrogen oxide from exhaust gas |
| 07/06/1994 | EP0604720A1 Process for the elimination of ammonia from the vapours generated during treatment of proteins or of their degradation products |
| 07/06/1994 | EP0604701A1 Method of sulfur dioxide removal from gaseous streams with alpha hemihydrate gypsum product formation |
| 07/06/1994 | EP0604554A1 Process for producing and utilizing an oxygen enriched gas |
| 07/06/1994 | EP0604520A1 Compressed air dryer |
| 07/06/1994 | EP0589897A4 Ultraporous and microporous membranes and method of making membranes |
| 07/06/1994 | CN1088844A A gas-liquid contacting device |
| 07/06/1994 | CN1025365C Immersible flue gas purifying system |
| 07/06/1994 | CN1025291C Hollow fiber multimembrane cells and permeators |
| 07/05/1994 | USRE34655 Chromium-tin oxide catalyst |
| 07/05/1994 | USH1327 Method for purifying amine gas sweetening systems by addition of co2 |
| 07/05/1994 | US5326735 Iridium catalysts for purifying exhaust gas |
| 07/05/1994 | US5326546 Method and apparatus for chlorine dioxide manufacture |
| 07/05/1994 | US5326536 Apparatus for injecting NOx inhibiting liquid reagent into the flue gas of a boiler in response to a sensed temperature |
| 07/05/1994 | US5326503 Latticed packing member for gas-liquid contactors |
| 07/05/1994 | US5326253 Partial combustion process and a catalyst structure for use in the process |
| 07/05/1994 | US5325876 Ashtray with ozone generator and catalytic exchanger |
| 07/05/1994 | US5325797 Staged fluidized-bed combustion and filter system |
| 07/05/1994 | US5325684 Absorber for a diffusion absorption plant |
| 07/05/1994 | US5325672 Process for the purification of gases |
| 07/05/1994 | US5325665 Catalytic converter arrangement |
| 07/05/1994 | CA1330559C Vehicle exhaust gas systems |
| 07/05/1994 | CA1330542C Honeycomb structural body and method of producing the same |
| 07/05/1994 | CA1330528C Process for removing volatile organic compounds from gas streams |
| 07/01/1994 | CA2112634A1 Integrated particulate/soxnox removal matter/processes and systems |
| 07/01/1994 | CA2112504A1 Device for air purification and particularly for air deodorization, by catalytic destruction of organic species present in the air |
| 06/30/1994 | DE4333739A1 Recovery of mercury@ from combustion flue gases |
| 06/30/1994 | DE4243820A1 Heat recovered from condensing gaseous tetra:chloro-ethylene used to dry cleaned metal components |
| 06/29/1994 | EP0604320A1 Device for the filtration of fuel vapors and tank filling arrangement associated with said filtration device |
| 06/29/1994 | EP0604250A1 Use of decahydropyrazino 2,3-b pyrazine for reducing the amount of free or combined hydrogen sulfide contained in a fluid |
| 06/29/1994 | EP0604236A1 Nitrogen oxide removal control apparatus |
| 06/29/1994 | EP0604198A1 Method for treating ammonia |
| 06/29/1994 | EP0604110A1 Destruction of organic compounds |
| 06/29/1994 | EP0603986A1 Process for cleaning exhaust air containing noxious substances |
| 06/29/1994 | EP0603919A1 Process and device for wet purification of gases |
| 06/29/1994 | EP0603900A1 Process for removing nitrogen oxides from oxygen rich exhaust gas |
| 06/29/1994 | EP0603798A1 Membrane process for the production of high purity nitrogen |
| 06/29/1994 | EP0603637A1 Sorption agent cartridge |
| 06/29/1994 | EP0603345A1 Water compositions |
| 06/29/1994 | EP0603299A1 Semi-permeable membranes derived from reactive oligomers |
| 06/29/1994 | EP0603218A1 Method for producing an aqueous industrial sodium chloride solution. |
| 06/29/1994 | EP0603178A1 Apparatus and process for removing organic compounds from a gas stream |
| 06/29/1994 | EP0448562B1 Removal of mercury from fluids by contact with activated zeolite a |
| 06/29/1994 | CN2170296Y Coke mulecular sieve machine for making nitrogen |
| 06/29/1994 | CN1088472A Method of removing carbon dioxide from mix gas |
| 06/29/1994 | CN1088471A Purification of argon by cryogenic adsorption |
| 06/29/1994 | CN1088470A Filtering method for toxicity of dust |
| 06/28/1994 | US5324703 Method of preparation of gasoline vapor adsorptive activated carbon |
| 06/28/1994 | US5324499 Adding silica to circulating waste sulfuric acid mixture containing hydrogen fluoride yields silicon tetrafluoride |
| 06/28/1994 | US5324492 Surface discharger; formation of free radicals; decomposition into nitrogen gas |
| 06/28/1994 | US5324403 Process for salt extraction from hydrogen-sulphide scrubber solution using electrodialysis |
| 06/28/1994 | US5324159 Particle loader |
| 06/28/1994 | US5323608 Exhaust purifying device |
| 06/28/1994 | CA2005411C Catalytic composite for purifying exhaust gases and a method for preparing the same |
| 06/27/1994 | EP0643668A4 PROCESS AND APPARATUS FOR REMOVING NO x? FROM EXHAUST GASES USING CYANURIC ACID--------------------------------------------------. |
| 06/24/1994 | CA2111401A1 Removal and destruction of halogenated organic and hydrocarbon compounds with porous carbonaceous materials |
| 06/24/1994 | CA2104136A1 Process and apparatus for the wet purification of gases |
| 06/23/1994 | WO1994014013A1 Filter system to purify air of smoking rooms |
| 06/23/1994 | WO1994013939A1 Catalytic converter with two or more honeycomb elements inside a tubular shealth, and a method of manufacturing it |
| 06/23/1994 | WO1994013586A1 Process for improving the brightness of raw gypsum |
| 06/23/1994 | WO1994013580A1 Drying and separating process and plant |
| 06/23/1994 | WO1994013579A1 Process for recovery of sulfur from acid gases |
| 06/23/1994 | WO1994013578A1 Method and apparatus for treating a flow of gas containing oxidized sulphur compounds |
| 06/23/1994 | WO1994013398A1 A process vessel |
| 06/23/1994 | WO1994013391A1 Process for improving the performance of an electrostatic precipitator |
| 06/23/1994 | WO1994013390A1 System for vapor phase pollutant removal |
| 06/23/1994 | WO1994013388A1 Scrubber system apparatus and method for cleaning air/gases |
| 06/23/1994 | WO1994013386A1 A regenerable supported amine-polyol sorbent |
| 06/23/1994 | EP0640002A4 Air filter. |
| 06/23/1994 | DE4336768A1 Sulphur and nitrogen conversion from oxide to elemental form |
| 06/23/1994 | DE4243627A1 Open pored mineral bulk material carrying immobilised microorganisms |
| 06/23/1994 | DE4242978A1 Recycling deactivated denox catalyst poisoned with arsenic |
| 06/23/1994 | CA2152079A1 Method and apparatus for treating a flow of gas containing oxidized sulphur compounds |
| 06/23/1994 | CA2151823A1 A process vessel |
| 06/23/1994 | CA2151497A1 Filter system to purify air of smoking rooms |
| 06/23/1994 | CA2102141A1 Use of decahydropyrazino ¬2,3-b| pyrazine to lower the free or combined hydrogen sulfide concentration in a fluid |
| 06/22/1994 | EP0602963A1 Exhaust gas purification method and apparatus therefor |
| 06/22/1994 | EP0602865A1 Catalyst |
| 06/22/1994 | EP0602864A2 Palladium containing metal oxide catalyst |
| 06/22/1994 | EP0602675A2 Process for converting heat stable amine salts to heat regenerable amine salts |
| 06/22/1994 | EP0602602A1 Catalyst for catalytic reduction of nitrogen oxides |
| 06/22/1994 | EP0602510A1 Method for treating ozone layer depleting substances |
| 06/22/1994 | EP0602354A2 Device for simultaneous removal of SO2 and NOx from flue gases by high frequency discharge |
| 06/22/1994 | EP0602234A1 Gas thermal treatment process and device, in particular thermal and/or catalytic afterburning of waste gas. |