| 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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| 09/14/1994 | CN1025913C Machine for making pure nitrogen by pressure variation and adsorption |
| 09/13/1994 | US5347004 From amine and aldehyde |
| 09/13/1994 | US5346876 Carbon carrier, manganese dioxide and potassium iodate |
| 09/13/1994 | US5346674 Process and apparatus for removal of impurities from flue gases |
| 09/13/1994 | US5346592 Combined water purification and power of generating plant |
| 09/13/1994 | US5346537 Method and system for controlling emissions from glycol dehydrators |
| 09/13/1994 | US5346536 Process for separating nitrogen gas |
| 09/13/1994 | US5346535 Use of crystalline molecular sieves containing charged octahedral sites in removing volatile organic compounds from a mixture of the same |
| 09/13/1994 | US5346534 Process for treating an article with a volatile fluid |
| 09/13/1994 | US5345884 Method of reducing polluting emissions from circulating fluidized bed combustion intallations |
| 09/13/1994 | US5345771 Process for recovering condensable compounds from inert gas-condensable compound vapor mixtures |
| 09/11/1994 | CA2118610A1 Gas supply systems |
| 09/09/1994 | CA2117145A1 Ammonia-limestone scrubbing with by-product for use in agriculture |
| 09/08/1994 | DE4401441A1 Process and apparatus for purifying gases containing hydrogen chloride and sulphur dioxide |
| 09/08/1994 | DE4307262A1 Magnetic polymeric silicon dioxide |
| 09/07/1994 | EP0614016A1 Hydraulic drive unit of hydraulic working machine |
| 09/07/1994 | EP0613856A1 Process for removing separately sulfur compounds and CO2 |
| 09/07/1994 | EP0613715A1 Process for treating styrene containing ventilation air |
| 09/07/1994 | EP0613714A2 Catalyst and process for purifying exhaust gases |
| 09/07/1994 | EP0613713A1 Horizontal wet scrubbing apparatus and method for removing sulfur dioxide from a gaseous stream |
| 09/07/1994 | EP0613712A1 Process and device for the dry purification of hot gases |
| 09/07/1994 | EP0613711A1 Method and apparatus for cleaning gases, in particular air, with the aid of organic filtration material |
| 09/07/1994 | EP0613397A1 A METHOD OF IMPROVING THE Hg-REMOVING CAPABILITY OF A FLUE GAS CLEANING PROCESS. |
| 09/07/1994 | EP0613396A1 Electrochemical cell and use thereof in the electrochemical separation or extraction of oxygen. |
| 09/07/1994 | EP0613395A1 Electrochemical cell and its use in the electrochemical separation or extraction of oxygen. |
| 09/07/1994 | EP0543834B1 Process and device for cleaning carbon-containing adsorption agents |
| 09/07/1994 | CN2176178Y Dust collector with water filter |
| 09/07/1994 | CN1091768A Ceric oxide crystallite aggregate, process of production and its use in reducing combustion residues |
| 09/07/1994 | CN1091677A Fume desulfurization dust catching apparatus |
| 09/06/1994 | US5345031 Reduction of aromatic halide content |
| 09/06/1994 | US5344632 Combustion in the presence of limestone for adsorption and entrainment of gases such as sulfur oxides to form calcium sulfate and calcium sulfite |
| 09/06/1994 | US5344631 Process for the separation of undesirable constituents from a waste gas |
| 09/06/1994 | US5344629 Nitrogen oxide decomposition |
| 09/06/1994 | US5344627 Process for removing carbon dioxide from combustion exhaust gas |
| 09/06/1994 | US5344626 Dual impregnated activated carbon |
| 09/06/1994 | US5344617 Apparatus for converting noxious pollutants from flue gas into merchantable by-products |
| 09/06/1994 | US5344616 Apparatus for the separation of undesirable constituents from a waste gas |
| 09/06/1994 | US5344615 Wet-process apparatus |
| 09/06/1994 | US5344614 Desulfurization in multicompartment reactor with water |
| 09/06/1994 | US5344529 Air pollution control by desulfurization by scrubbing with water and sulfuric acid to dissolve and treat with electrolysis |
| 09/06/1994 | US5344480 Pressurizing with and recovering helium |
| 09/06/1994 | US5344474 Gas separation device |
| 09/06/1994 | US5344473 Apparatus for the deposition of melamine |
| 09/06/1994 | CA1331890C Process for treatment of water containing volatile and toxic compounds |
| 09/01/1994 | WO1994019688A1 Method and apparatus for predicting end-of-life of a consumable in a fluid purification system |
| 09/01/1994 | WO1994019427A1 A perovskite-type fcc nox reduction additive |
| 09/01/1994 | WO1994019094A1 Boreside feed hollow fiber membrane device |
| 09/01/1994 | WO1994019092A1 Catalyst for use in oxidation |
| 09/01/1994 | WO1994019091A1 Process and apparatus for absorbing hydrogen sulphide |
| 09/01/1994 | WO1994019090A1 Gas phase degradation of organic compounds |
| 09/01/1994 | DE4332370C1 Gas scrubber |
| 09/01/1994 | DE4321542C1 Process for the separate removal of sulphur compounds and CO2 from gas |
| 09/01/1994 | DE4306104A1 Method for purifying amines |
| 09/01/1994 | DE4305754A1 Process for reducing the emissions from furnaces, incinerators and exhaust air systems and for combined elimination of contaminants in pollutant gases and waste waters |
| 09/01/1994 | CA2156282A1 Catalyst for use in oxidation |
| 08/31/1994 | EP0612689A1 Process and catalyst for purifying carbon dioxide |
| 08/31/1994 | EP0612556A1 Process for removal of hydrogen sulfide |
| 08/31/1994 | EP0612555A1 Process for the degradation of highly toxic halogenated organic compounds contained in gas |
| 08/31/1994 | EP0612554A1 Purification method and apparatus |
| 08/31/1994 | EP0612553A2 Adsorber for separating a gas mixture |
| 08/31/1994 | EP0612552A1 Adsorption process to recover hydrogen from low pressure feeds |
| 08/31/1994 | EP0612268A1 Convection towers. |
| 08/31/1994 | EP0612267A1 Gas filter. |
| 08/31/1994 | EP0515474B1 method and apparatus for the purification of waste gases |
| 08/31/1994 | EP0506787B1 Process and apparatus for removal of impurities from flue gases |
| 08/31/1994 | EP0455721B1 Carbon molecular sieves for purification of chlorofluorocarbons |
| 08/31/1994 | EP0428752B1 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof |
| 08/31/1994 | CN2175637Y Air purifier for treating organic waste gas |
| 08/31/1994 | CN1091332A Polyamine process for removing carbon dioxide and sulphide from gas |
| 08/31/1994 | CN1091331A Purification system using heat of compression |
| 08/30/1994 | US5342637 Method for conditioning the atmosphere in a storage chamber for organic harvested produce |
| 08/30/1994 | US5342599 Bonding to substrate for storage stability |
| 08/30/1994 | US5342593 Process for absorption of sulfur compounds from fluids |
| 08/30/1994 | US5342592 Lance-type injection apparatus for introducing chemical agents into flue gases |
| 08/30/1994 | US5342591 Catalytic method |
| 08/30/1994 | US5342588 Meter support matrix for a catalytic reactor |
| 08/30/1994 | US5342434 Coating from reaction of perfluoroalkyl alcohol with a diisocyanate |
| 08/30/1994 | US5342432 Composite membrane, process for its production and its use |
| 08/30/1994 | US5341641 Dual sensor type air fuel ratio control system for internal combustion engine |
| 08/30/1994 | CA1331689C Ozone decomposing material and ozone decomposing apparatus using the ozone decomposing material |
| 08/26/1994 | CA2116289A1 Process for removal of hydrogen sulfide |
| 08/25/1994 | DE4403498A1 Honeycomb-like body |
| 08/25/1994 | DE4403367A1 Adsorbent for nitrogen oxides and process for removing nitrogen oxides by use thereof |
| 08/25/1994 | DE4305114A1 Method for reheating desulphurised exhaust gases of waste incineration plants |
| 08/24/1994 | EP0611641A1 Method for forming an object of thermosetting synthetic material in a mould |
| 08/24/1994 | EP0611594A1 Catalyst for converting reactants in a gas mixture |
| 08/24/1994 | EP0611591A1 Catalytic system and process to remove NOx, CO and polychlorinated dibenzodioxins and dibenzofuranes from exhaust gases |
| 08/24/1994 | CN2175031Y Double-ring flushing and stirring type dust-remover |
| 08/24/1994 | CN2175030Y Fluidized bed gas purification device |
| 08/24/1994 | CN2175029Y Drawer-like silk net type device for removing foam |
| 08/24/1994 | CN1091054A Preparation method and device for oxygen and crude nitrogen |
| 08/24/1994 | CN1091053A Combined smoke-removing dust-removing desulfurization device |
| 08/23/1994 | US5340555 Decomposing with caustic alkali using imidazolidinone or 2-oxohexahydropyrimidine derivatives as absorber |
| 08/23/1994 | US5340554 Using a hydrogenation catalyst |
| 08/23/1994 | US5340553 Deoxygenation and dehydration by the heated silicon |
| 08/23/1994 | US5340552 Macroreticulate polymer containing heteroaromatic moiety reacted with alkali metal compound |
| 08/23/1994 | US5340548 Catalyst containing alkali metal, copper, vanadium and rare earth metals |
| 08/23/1994 | US5340547 Clear liquor scrubbing magnesium-enhanced lime flue gas desulfurization system |
| 08/23/1994 | US5340450 Removal of organic materials from a gas |
| 08/23/1994 | US5340382 Acid gas absorption process |