| 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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| 04/15/1993 | WO1993007087A1 Hardness suppression in urea solutions |
| 04/15/1993 | WO1993006924A1 Particle-loaded nonwoven fibrous article for separations and purifications |
| 04/15/1993 | WO1993006918A1 Clamshell retainer used in hollow fiber membrane devices |
| 04/15/1993 | WO1993006916A1 Method for purifying nitric oxide-containing gas |
| 04/15/1993 | WO1993006915A1 Method for purifying nitric oxide and sulphur dioxide containing gas |
| 04/15/1993 | DE4139348C1 Removing sulphurous fumes from combustion gases - by mixing fuel with calcium carbonate, calcium hydroxide and calcium oxide, and spraying hot combustion gas with water |
| 04/15/1993 | DE4133581A1 Cleaning exhaust gases from plasticising assemblies - by removing dust particles, fixing and neutralising acid gases, eliminating aerosol particles and removing gaseous cpds. |
| 04/15/1993 | CA2120246A1 Clamshell retainer used in hollow fiber membrane device |
| 04/14/1993 | EP0491767A4 Absorbent material and uses thereof |
| 04/14/1993 | EP0325596B1 Hazardous waste reactor system |
| 04/14/1993 | CN1070941A Recovering and treating technology for tais gas in vegetable oil leaching method processing |
| 04/14/1993 | CN1070841A Hollow fiber membranes |
| 04/14/1993 | CN1070840A Pressure-changed adsorption concentrating hydrogen technology |
| 04/14/1993 | CN1070839A Process of purifying loaded waste gases from oil burning device |
| 04/14/1993 | CN1070838A Circulating water membrane dust catcher and method thereof |
| 04/13/1993 | US5202300 Catalyst for purification of exhaust gas |
| 04/13/1993 | US5202299 Active metal and refractory oxide overcoated with colloidal silica |
| 04/13/1993 | US5202296 Chemically treated air filter for enriching the oxygen present in an airstream |
| 04/13/1993 | US5202103 Removal of sulfur dioxide from gas streams |
| 04/13/1993 | US5202101 Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream |
| 04/13/1993 | US5202096 Apparatus for low temperature purification of gases |
| 04/13/1993 | US5202057 Steam reforming of hydrocarbons; combining hydrogen and nitrogen |
| 04/13/1993 | US5202023 Flexible hollow fiber fluid separation module |
| 04/13/1993 | US5201792 Accumulator for vehicle air conditioning system |
| 04/13/1993 | CA1316122C Circulating air scrubber |
| 04/09/1993 | CA2080087A1 Dual product pressure swing adsorption process and system |
| 04/09/1993 | CA2080077A1 Dual product pressure swing adsorption and membrane operations |
| 04/08/1993 | DE4136183C1 Removing nitrous oxide(s) from waste gas - by reacting with hydrogen peroxide in presence of inert solid catalyst, preventing evapn. of soln. |
| 04/08/1993 | DE4129101C1 Appts. for biologically cleaning air - includes bio-absorber unit with carriers of spherical, hollow parts having lateral ribs which dip into wash soln. |
| 04/08/1993 | DE4125244A1 Flue gas wet desulphurisation reactor - with reheat temp. control to prevent sub dew-point corrosion deposition |
| 04/08/1993 | CA2079128A1 Three-way catalyst for treating emissions from compressed natural gas fueled engines |
| 04/08/1993 | CA2079123A1 Catalyst system for converting emissions of a lean-burn engine |
| 04/08/1993 | CA2078428A1 Enhanced membrane gas separations |
| 04/07/1993 | EP0535964A2 Method and apparatus for using hazardous waste to form non-hazardous aggregate |
| 04/07/1993 | EP0535695A2 Smoking article with carbon monoxide oxidation catalyst |
| 04/07/1993 | EP0535379A1 Dehumidifying device |
| 04/07/1993 | EP0535313A2 Reduction of combustion effluent pollutants |
| 04/07/1993 | EP0502877A4 Process for removing condensable components from gas streams |
| 04/07/1993 | EP0497762A4 System for the efficient reduction of nitrogen oxides in an effluent |
| 04/07/1993 | CN1070591A Reduction of nitrogen oxide in effluent gases using formaldehyde |
| 04/07/1993 | CN1070589A Manufacturing method of efficient chlorine cleaning agent |
| 04/07/1993 | CN1070588A Process for desulfurization and denitrification of waste gas containing halogen-containing materials |
| 04/06/1993 | US5200629 Chemical conversion to reduce pollution; exhaust gases from internal combustion engines |
| 04/06/1993 | US5200384 Platinum group, activated alumina, cerium oxide coprecipitate, of ceria-stgabilized zirconia |
| 04/06/1993 | US5200163 Removal of phosgene from off-gases |
| 04/06/1993 | US5200162 Process for N2 O decomposition |
| 04/06/1993 | US5200161 Scrubbing the gases with an aqueous liquid to which formaldehyde is added at controlled rate |
| 04/06/1993 | US5200160 Sulfide reducing agent, ferrous-EDTA with antioxidant |
| 04/06/1993 | US5200087 Heating, reducing with metal, vasification, reducing with metallic salt, cooling |
| 04/06/1993 | US5200058 Catalytic conversion over modified synthetic mesoporous crystalline material |
| 04/06/1993 | US5200043 Treating with discharge current in magnetic field; reduces toxicity of silane, germanium, phosphine and diborane gases |
| 04/06/1993 | US5199964 Method and apparatus for adsorbing moisture from gases especially air |
| 04/06/1993 | US5199962 Process for removing condensable components from gas streams |
| 04/06/1993 | US5199263 Combustion system with reduced sulfur oxide emissions |
| 04/06/1993 | US5199257 Device for removal of particulates from exhaust and flue gases |
| 04/06/1993 | US5199255 Introducing solution of nonvolatile nitrogen oxide reducing agent into combustion zone before contacting gas turbine blades |
| 04/06/1993 | CA1315768C Adsorbent for arsenic compounds and method for removing arsenic compounds from combustion gas |
| 04/06/1993 | CA1315732C Process for manufacturing a partially permeable membrane |
| 04/06/1993 | CA1315709C So -flue gas conditioning system |
| 04/06/1993 | CA1315708C Air purification process |
| 04/06/1993 | CA1315705C Process for membrane separation of gas mixtures |
| 04/06/1993 | CA1315668C Filter-device and a filter-appliance from such filter-device |
| 04/06/1993 | CA1315527C Enhanced sorbent injection combined with natural gas reburning for a sox control for coal fired boilers |
| 04/06/1993 | CA1315526C Catalyst-agglomerate bodies encapsulated in a structure |
| 04/04/1993 | WO1993007363A1 Device for purifying exhaust of internal combustion engine |
| 04/04/1993 | CA2079495A1 Smoking article with co oxidation catalyst |
| 04/01/1993 | WO1993006347A1 Catalytic reactor and method of controlling emissions |
| 04/01/1993 | WO1993006346A1 Improved exhaust treatment system |
| 04/01/1993 | WO1993006193A1 Coal gas productions coal-based combined cycle power production method and apparatus |
| 04/01/1993 | WO1993006064A1 Method for neutralizing and regaining of gases being released by wet composting of domestic animal manure and sewage and similar masses, and also installation for carrying the method into effect |
| 04/01/1993 | WO1993006041A1 Process for producing and utilizing an oxygen enriched gas |
| 04/01/1993 | WO1993005992A1 Compressed air dryer |
| 04/01/1993 | WO1993005879A1 Catalyst prepared using irradiation |
| 04/01/1993 | WO1993005869A1 Apparatus for treating indoor air |
| 04/01/1993 | WO1993005868A1 Coated fibrous filter for catalytic cracking |
| 04/01/1993 | WO1993005867A1 Compressed air system with warning mechanism for air dryer service life indication |
| 04/01/1993 | WO1993005866A1 Semi-permeable membranes derived from reactive oligomers |
| 04/01/1993 | WO1993005865A1 Device for adsorbing pollutants in a gas flow |
| 04/01/1993 | WO1993005864A1 Apparatus and process for removing organic compounds from a gas stream |
| 04/01/1993 | WO1993005863A1 Device for supplying, distributing and moistening gas in a gas cleansing or decomposition installation |
| 04/01/1993 | WO1993005821A1 Catalytic reduction of volatile organic contaminants in indoor air |
| 04/01/1993 | DE4230863A1 Assembly enabling controlled introduction of material into an industrial process - comprises pipe through wall of reactor with spherical zone held by fixed and adjustable disc assemblies to direct fluids |
| 04/01/1993 | DE4132439A1 Abgaskatalysator Catalytic converter |
| 04/01/1993 | DE4131589A1 Dry cleaning of textiles and leather with solvent esp. tetra:chloroethylene - with removal of solvent by centrifuging followed by blowing with air |
| 04/01/1993 | CA2119131A1 Catalytic reduction of volatile organic contaminants in indoor air |
| 04/01/1993 | CA2118801A1 Semi-permeable membranes derived from reactive oligomers |
| 04/01/1993 | CA2116324A1 Apparatus and process for removing organic compounds from a gas stream |
| 03/31/1993 | EP0534774A1 5,5-Dialkyl hydantoins for promoted acid gas scrubbing processes |
| 03/31/1993 | EP0534657A1 Adsorbent vessel having a convective heat exchanger and flow developer |
| 03/31/1993 | EP0534094A2 Process for removing aldehydes and/or vinyl esters from gaseous or liquid process streams |
| 03/31/1993 | EP0534087A1 Process for removing nitrogen oxides from exhaust gases |
| 03/31/1993 | EP0533759A1 A method of removing hydrocarbons from the air. |
| 03/31/1993 | EP0533743A1 Microbial removal of nitrogen oxides from gases |
| 03/31/1993 | EP0403485B1 Method for cleaning flue gases |
| 03/31/1993 | EP0270531B2 Moving bed reactor |
| 03/31/1993 | CN1070352A Catalytic reduction of NOx using methane in presence of oxygen |
| 03/30/1993 | US5198405 Support |
| 03/30/1993 | US5198403 Kneading together metal oxides, extrusion, drying, calcining, titanium dioxide |
| 03/30/1993 | US5198206 Condensing sulfuric acid vapors to produce sulfuric acid |
| 03/30/1993 | US5198203 Synthetic mesoporous crystalline material |