| 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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| 08/12/1993 | DE4203385A1 Use of unchanged, emulsified or modified vegetable oil - for cleaning gas mixt. contg. solvent vapour, odorous substance or other harmful substances |
| 08/11/1993 | EP0555172A1 Process of treating flue gas |
| 08/11/1993 | EP0554873A1 Carbon dioxide absorber and method for manufacturing same from building industrial waste |
| 08/11/1993 | EP0554805A1 Air separation by pressure swing adsorption with a high capacity carbon molecular sieve |
| 08/11/1993 | EP0554766A1 Process for reducing the nitrogen oxide content in exhaust gases by the controlled addition of NH3 |
| 08/11/1993 | EP0554691A1 Process for treating flue gas |
| 08/11/1993 | EP0554567A1 Spiral-wound hollow fiber membrane fabric cartridges and modules having flow-directing baffles |
| 08/11/1993 | EP0554487A1 Process for decontaminating flue gases |
| 08/11/1993 | EP0554402A1 Gas-liquid contact column with improved mist eliminator and method |
| 08/11/1993 | EP0554328A1 Method of recovering substantially pure co 2 from a fermentation gas. |
| 08/11/1993 | CN2139850Y Air desiccator |
| 08/11/1993 | CN1075102A 气液接触系统 Gas-liquid contact system |
| 08/11/1993 | CN1075101A Method for the treatment of flue gas |
| 08/11/1993 | CN1075100A Water-resistance fan-blade smoke-removing apparatus |
| 08/10/1993 | US5234881 Automotive exhaust catalyst |
| 08/10/1993 | US5234877 Flue gas |
| 08/10/1993 | US5234672 Maintaining three-dimensional vertical upward flow before entering scrubbing zone |
| 08/10/1993 | US5234671 Reduction of nitrogen oxide in effluent gases using formaldehyde and/or formaldehyde-derived free radicals |
| 08/10/1993 | US5234670 Reduction of nitrogen oxide in effluent gases using NCO radicals |
| 08/10/1993 | US5234591 Counter-current flow hollow fiber permeator |
| 08/10/1993 | US5234482 Retarding valve at a single-tower air drier |
| 08/10/1993 | US5234479 Compressed natural gas dryer system and method of operation |
| 08/10/1993 | US5234477 Unleaded fuel containing selected ammonium compound |
| 08/10/1993 | US5234472 Separation of gas mixtures including hydrogen |
| 08/10/1993 | US5233934 Reaction with first treating agent in selective non-catalytic reduction zone, then with second treating agent in selective catalytic reduction zone |
| 08/10/1993 | US5233843 Atmospheric moisture collection device |
| 08/10/1993 | US5233837 Liquefaction by using expanded nitrogen-rich gaseous stream to heat exchanging |
| 08/10/1993 | CA1321154C Method for densely packing molecular sieve adsorbent beds in a psa system |
| 08/05/1993 | WO1993015166A1 A method for cleaning a mixture of air and vapour from volatile crude oil with recovery of the hydrocarbons, and a system for use in the method |
| 08/05/1993 | WO1993014862A1 Treatment of gases discharged from metallurgical furnaces |
| 08/05/1993 | WO1993014861A1 Device for filtering gases using a biological filter material |
| 08/05/1993 | WO1993009146A3 High performance thermally stable catalyst |
| 08/05/1993 | DE4202947A1 Vorrichtung zum filtern von gasen unter einsatz von biologischem filtermaterial An apparatus for filtering gases using biological filter material |
| 08/05/1993 | DE4202812A1 Cleaning solvent-laden air - by passage through acid soln. and then potassium permanganate |
| 08/04/1993 | EP0554223A1 Process for preparing a filter unit and the filter unit prepared by said process |
| 08/04/1993 | EP0553796A1 Method for preparing sulfur absorbents |
| 08/04/1993 | EP0553706A1 Installation for drying gases by cooling |
| 08/04/1993 | EP0553659A2 Positioning of injectors for injecting and pulverising liquids in a gas washing device |
| 08/04/1993 | EP0553643A2 Method for treating combustion exhaust gas |
| 08/04/1993 | EP0528982A4 Catalysts for the destruction of halogenated organics |
| 08/04/1993 | EP0489078B1 Process and device for disposing of organic vapours, in particular solvent vapours |
| 08/04/1993 | EP0474659B1 Two-stage condenser |
| 08/04/1993 | CN1074837A Film-type gas distributor |
| 08/03/1993 | US5232890 Platinum or palladium and rhodium mixed oxide catalysts for treatment of combustion gas emissions |
| 08/03/1993 | US5232889 Porous carrier material has catalytical active cerium oxide covering surface layer; catalytic exhaust system of internal combustion engines |
| 08/03/1993 | US5232886 Catalysts and methods for ozone decomposition |
| 08/03/1993 | US5232882 Ozone decomposing reactor regeneration |
| 08/03/1993 | US5232676 Passing waste gas-air stream through intermittently moistened trickle filter for biodegradation |
| 08/03/1993 | US5232584 Method and apparatus for purifying and compacting solid wastes |
| 08/03/1993 | US5232488 Cooling, mixing with sodium thiocyanate solution with activated carbon producing tailings, filtration, collecting condensates, filtrates and tailings, combining to form slime then refining |
| 08/03/1993 | US5232479 Adsorber comprising annular superposed beds of adsorbent materials |
| 08/03/1993 | US5232476 Solvent recovery and reclamation system |
| 08/03/1993 | US5232474 Pre-purification of air for separation |
| 08/03/1993 | US5232473 Pressure swing adsorption with countercurrent feed pressurization |
| 08/03/1993 | US5232467 Process for producing dry, sulfur-free, CH4 -enriched synthesis or fuel gas |
| 08/03/1993 | US5231980 Process for the recovery of halogenated hydrocarbons in a gas stream |
| 08/03/1993 | US5231836 Two-stage condenser |
| 08/03/1993 | CA1320804C Fluorinated polymeric membranes for gas separation processes |
| 08/03/1993 | CA1320803C Polyimide gas separation membranes |
| 08/01/1993 | CA2087996A1 Apparatus for cold drying of gas |
| 07/31/1993 | CA2088034A1 Air separation by pressure swing adsorption with a high capacity carbon molecular sieve |
| 07/29/1993 | DE4209196C1 Polluted air cleaning by catalytic oxidn. - in electric field generated between electrically heated catalyst and electrode |
| 07/29/1993 | DE4206020C1 Recovery of solvent from water-solvent mixt. - comprises container contg. evaporator and condenser connected by common cooling circuit with incorporated compressor |
| 07/29/1993 | DE4201684A1 Removing sulphur di:oxide from flue gas from cupola furnace - by washing with caustic soda soln., oxidising resulting sodium bi:sulphite to sodium sulphate, and evaporating water by mixing with hot slag from furnace |
| 07/28/1993 | EP0553041A1 Process and apparatus for the pyrolysis of fluid effluents |
| 07/28/1993 | EP0552715A1 A nox removal catalyst containing an inorganic fiber |
| 07/28/1993 | EP0552660A1 Process for the purification of waste gases emitted from melting furnaces |
| 07/28/1993 | EP0552583A1 Method and plant for the destruction of organic sludge, especially sewage sludge |
| 07/28/1993 | EP0552457A1 Distributor plate for mobile bed reactors |
| 07/28/1993 | EP0552360A1 A composition and method for simultaneous absorption of sulfur dioxide and nitric oxide |
| 07/28/1993 | EP0552172A1 Supported platinum group metal catalysts. |
| 07/28/1993 | EP0434686B1 Removal of nitric oxide from waste gases and recovery as nitric acid |
| 07/28/1993 | EP0285612B1 Moisture remover in compressed air system |
| 07/28/1993 | CN1074630A Burning catalyst for composite oxide and preparing process and application |
| 07/28/1993 | CN1074629A Metal composite oxide three-element purifying catalyst |
| 07/28/1993 | CN1074627A Purifying method and device for cigarette smog |
| 07/27/1993 | US5231063 Composite adsorbent and process for producing same |
| 07/27/1993 | US5230872 Method and apparatus for regenerating activated carbon containing an adsorbed volatile organic absorbate |
| 07/27/1993 | US5230871 Desulfurization, pollution control |
| 07/27/1993 | US5230870 Method for converting noxious pollutants from flue gas into merchantable by-products |
| 07/27/1993 | US5230721 Apparatus for supplying ultrahigh purity gas |
| 07/27/1993 | US5230719 Dehumidification apparatus |
| 07/27/1993 | US5230220 Sterilizing/deodorizing apparatus for use in a refrigerator |
| 07/27/1993 | US5230166 Air drier |
| 07/27/1993 | CA1320739C Process for the preparation of metal salts of phosphoric and phosphonic acid esters |
| 07/22/1993 | WO1993014348A1 CALCINATION ELIMINATING NOx GASES |
| 07/22/1993 | WO1993014265A1 Porous webs |
| 07/22/1993 | WO1993013851A1 Method, dry multi-stage pump and plasma scrubber for converting reactive gases |
| 07/22/1993 | WO1993011851A3 Particulate material separator |
| 07/22/1993 | DE4201423A1 Combined Diesel engine and gas permeate assembly - reduces particle exhaust emissions with no significant increase in cylinder pressure |
| 07/22/1993 | DE4201260A1 Ambient air filter - has automatic up=and=down movement according to the air quality and is connected to air conditioning and ventilation units via flap |
| 07/22/1993 | DE4201166A1 Simultaneous treatment of organic waste prods., e.g. sewage - by subjecting streams of coarse prod. free waste to hydrolysing rotting, densifying and composting |
| 07/22/1993 | DE4201018A1 Exhaust gas treatment for IC engine - metering hydrogen@ and oxygen@ into exhaust duct to ignite and raise temp. to process exhaust products |
| 07/22/1993 | DE4200990A1 Sepn. of vapours from steam-carrier-gas mixts. - where mixt. is bubbled through liquefied gas at low temp., vapour solidifies and is removed as fine particles |
| 07/22/1993 | CA2127979A1 Porous webs |
| 07/22/1993 | CA2082102A1 Convertible asphalt and soil remediation plant and methods of operation |
| 07/21/1993 | EP0551876A2 Process for removing carbon dioxide from combustion exhaust gas |
| 07/21/1993 | EP0551342A1 Catalyst composition containing base metal oxide-promoted rhodium |
| 07/21/1993 | EP0551297A1 Process for the production of charcoal molecular sieves. |
| 07/21/1993 | EP0489910A4 Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes |