| 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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| 07/25/1990 | EP0379307A2 Process for removing SOx from a gaseous mixture |
| 07/25/1990 | EP0378844A1 Self-contained air drying unit |
| 07/25/1990 | EP0378761A1 Abatement of NOx from hydroxylamine disulfonate process |
| 07/25/1990 | EP0378578A1 Apparatus and process for the detoxification of hazardous waste. |
| 07/25/1990 | EP0281551B1 Apparatus for the oxidation of particles suspended in the air |
| 07/25/1990 | EP0127671B1 Valves for desiccant dryers |
| 07/25/1990 | CN1044162A Improved self-contained air drying unit |
| 07/25/1990 | CN1008905B Process for the desulfurization of gas containing hydrogen sulfide |
| 07/25/1990 | CN1008883B Process for separating of mixture gas and apparatus used to put it into effect |
| 07/25/1990 | CA2008347A1 Removing hydrogen cyanide and carbon oxysulphide from a gas mixture |
| 07/24/1990 | US4943550 Catalysts for oxidation of carbon monoxide |
| 07/24/1990 | US4943422 Process for treatment of gaseous effluents containing sulfur dioxide with oxygen |
| 07/24/1990 | US4943421 Method of reducing the oxides of nitrogen in fossil fuels combustion and combustion effluents using amine compounds |
| 07/24/1990 | US4943356 Method and apparatus for cleaning sulphur and nitrogen containing flue gases by reaction under the action of electron beams |
| 07/24/1990 | US4943306 Exhaust gas purifying system |
| 07/24/1990 | US4943304 Process for the purification of bulk gases using chabazite adsorbents |
| 07/19/1990 | DE3941560A1 Redn. of formation of sulphate - in regenerative desulphurisation of flue gas, by addn. of inhibitor and surfactant to wash liq. |
| 07/19/1990 | DE3900831A1 Process for treating exhaust gases from a waste incineration plant and apparatus for carrying out the process |
| 07/19/1990 | DE3900728A1 Process and apparatus for purifying exhaust gases |
| 07/18/1990 | EP0378408A2 Double-deck distributor |
| 07/18/1990 | EP0378225A2 Apparatus for processing fluid and method of driving the same |
| 07/18/1990 | EP0378099A1 Arrangement for catalytic post-combustion for fireplaces |
| 07/18/1990 | EP0377975A1 Process for the Reduction of nitrogen oxides |
| 07/18/1990 | EP0377960A2 Phosphate-containing ceramic structures for catalyst support and fluid filtering |
| 07/18/1990 | EP0377812A1 Process and apparatus for the purification of waste water and waste gas |
| 07/18/1990 | EP0377811A2 Process and apparatus for cleaning exhaust gases |
| 07/18/1990 | EP0377800A2 System for decontaminating compressed gas |
| 07/18/1990 | CN1043919A Method for purifying high temp. reducibility gas |
| 07/18/1990 | CN1043885A Improved composite membranes, their manufacture and their use |
| 07/17/1990 | US4942020 Converter for removing pollutants from a gas stream |
| 07/17/1990 | US4942019 Filters with baffles for deflection of gases, heaters and insuated spacings, seals |
| 07/17/1990 | US4941991 Composition and process for use in neutralizing malodorous gases |
| 07/17/1990 | US4941962 Electrostatic adsorptive fluid filtering apparatus |
| 07/17/1990 | US4941957 Decomposition of volatile ogranic halogenated compounds contained in gases and aqueous solutions |
| 07/17/1990 | US4941898 Multicylinder rotary apparatus for desulfurization from exhaust gas |
| 07/17/1990 | US4941897 Microporous filter and method |
| 07/17/1990 | US4941896 Venturi device with suction openings for power plants and industries |
| 07/17/1990 | US4941894 Gas drying or fractioning apparatus and method |
| 07/17/1990 | US4941893 Gas separation by semi-permeable membranes |
| 07/17/1990 | CA1271710A1 Process for producing high concentration oxygen by a pressure-swing-absorption method |
| 07/17/1990 | CA1271700A1 Condensation and recovery of solvent and other vapours |
| 07/17/1990 | CA1271619A1 Apparatus for the removal of hydrogen |
| 07/17/1990 | CA1271618A1 Process for purification of gases |
| 07/13/1990 | CA2007255A1 Process for removing sox from a gaseous mixture |
| 07/12/1990 | WO1990007561A1 Method for reducing emissions from or increasing the utilizable energy of fuel for powering internal combustion engines |
| 07/12/1990 | WO1990007467A1 Composition and method for sweetening hydrocarbons |
| 07/12/1990 | WO1990007372A1 Process for membrane separation of gas mixtures |
| 07/12/1990 | WO1990007371A1 Process and device for separating undesirable constituents from waste gases |
| 07/12/1990 | DE3912418C1 Degradation of hydrogen sulphide and fatty acids in bio-gas - by using chromatium species DSM 5080 together with rhodopseudomonas species FDSM 5020 in alkaline culture |
| 07/12/1990 | DE3900243A1 Zinc oxide, zinc carbonate and basic zinc carbonate, process for their preparation and their use |
| 07/11/1990 | EP0377483A2 Method for purifying high-temperature reducing gas |
| 07/11/1990 | EP0377476A1 Method of purifying air containing ammonia and device to be used thereby |
| 07/11/1990 | EP0377468A1 Exhaust gas purification catalyst for suppressing hydrogen sulfide evolution, and process for production thereof |
| 07/11/1990 | EP0377424A2 Process for capturing nitrogen from air using gas separation membranes |
| 07/11/1990 | EP0377290A1 Silica catalyst support for reduced sulphate emissions from diesel-fuelled engines |
| 07/11/1990 | EP0377010A1 Agent and process for cleaning gases and exhaust gases and process for producing said agent |
| 07/11/1990 | EP0376974A1 Apparatus for and method of providing improved gas separation. |
| 07/11/1990 | EP0376971A1 Process and installation for recovering reusable gas from waste through pyrolysis. |
| 07/11/1990 | EP0293298B1 Processes for the preparation and regeneration of a copper-containing solid mercury adsorption mass |
| 07/11/1990 | EP0215899B1 Enhanced pressure swing adsorption processing |
| 07/11/1990 | CN2059167U Chromic acid waste gas recovering device for washing chromic spray net grate system |
| 07/10/1990 | US4940686 Vanadium oxide support, platinum, iron or iron oxide |
| 07/10/1990 | US4940684 Method for preparing a catalyst supported on silicon carbide or silicon nitride |
| 07/10/1990 | US4940569 Gamma alumina substrate with alkali metal component |
| 07/10/1990 | US4940567 Apparatus for catalytically reducing noxious substances in flue gas |
| 07/10/1990 | US4940213 Exhaust processing apparatus |
| 07/10/1990 | US4940134 Treating used photographic solutions, evaporation, condensation |
| 07/10/1990 | US4940010 Acid gas control process and apparatus for waste fired incinerators |
| 07/10/1990 | US4939906 Multi-stage boiler/regenerator for liquid desiccant dehumidifiers |
| 07/10/1990 | US4939817 Melting sulfur, minimization of interfacial area in separation pipe |
| 07/10/1990 | CA2003944A1 Phosphate-containing ceramic structure for catalyst support and fluid filtering |
| 07/10/1990 | CA1271429A1 Sorbing apparatus |
| 07/10/1990 | CA1271310A1 Sulfur recovery process using metal oxide absorbent with reducing gas purge |
| 07/05/1990 | DE3900026A1 Vortex chamber |
| 07/05/1990 | DE3900005A1 Process for reducing nitrogen oxides in exhaust gases |
| 07/05/1990 | DE3844350A1 Support body for a catalytic reactor for exhaust gas purification |
| 07/05/1990 | DE3844217A1 Process for preparing calcium hydroxides |
| 07/05/1990 | DE3843830A1 Process for decreasing NOx in flue gases |
| 07/05/1990 | DE3842994A1 Activated charcoal filter for trapping fuel vapours |
| 07/04/1990 | EP0376636A2 Primary hindered aminoacids for promoted acid gas scrubbing process |
| 07/04/1990 | EP0376485A1 Quaternary polyamine as sulfite oxidation inhibitor |
| 07/04/1990 | EP0376356A1 Method and apparatus for removing undesirable components from an exhaust gas |
| 07/04/1990 | EP0376025A1 Process for the reduction of nitrogen oxides in exhaust gases |
| 07/04/1990 | EP0375986A1 Carrier for a catalytic reactor for the purification of exhaust gases |
| 07/04/1990 | EP0375782A1 Sheet type mat |
| 07/04/1990 | EP0375759A1 Process for manufacturing a plate-shaped support for catalysing compounds. |
| 07/04/1990 | CN1043448A 催化剂 Catalyst |
| 07/04/1990 | CN1043445A Gas scrubbing process |
| 07/03/1990 | US4939285 Process for the preparation of metal salts of phosphoric and phosphonic acid esters |
| 07/03/1990 | US4939113 Hydrogen sulfide suppressing catalyst system using an oxide of copper, manganese, nickel or iron |
| 07/03/1990 | US4938936 Hydrogen fluoride vapor containment and neutralization |
| 07/03/1990 | US4938931 Hollow membrane |
| 07/03/1990 | US4938902 Process for producing aromatic imide polymer hollow filaments |
| 07/03/1990 | US4938787 Filter device and filter apparatus comprising such filter devices |
| 07/03/1990 | US4938783 Process for the purification of crude gases with simultaneous production of synthesis gas and fuel gas |
| 07/03/1990 | CA1271183A1 Metal catalyst carrier or support body rolled or laminated from metal sheets and having a double or multiple corrugated or wave structure |
| 07/03/1990 | CA1271029A1 Process and apparatus for extracting liquids from aggregates and from gas/vapor mixtures |
| 06/30/1990 | CA2003013A1 Closet drier with liquid absorbing and immobilizing material |
| 06/28/1990 | WO1990006803A1 Process for the production of a catalyst for the removal of oxides of nitrogen from exhaust gases |
| 06/28/1990 | WO1990006802A1 Process for the production of a catalyst for the removal of oxides of nitrogen from exhaust gases |