| 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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| 08/16/1990 | EP0381942A1 Process and device for the recovery of perchloroethylene absorbed by an adsorbent |
| 08/16/1990 | EP0381720A1 Low pressure noncryogenic processing for ethylene recovery. |
| 08/16/1990 | EP0247113B1 Method and plant for neutralizing acid smokes issued particularly from the combustion of residues |
| 08/16/1990 | DE4003565A1 Vorrichtung zur entfernung partikelfoermiger stoffe aus auspuff- und rauchgasen Device for distance partikelfoermiger materials from an exhaust and flue gases |
| 08/16/1990 | DE4003564A1 Removing particulates from exhausts and flue gases |
| 08/16/1990 | DE3904550A1 Catalyst shaped body for a flowing liquid or gaseous medium |
| 08/16/1990 | DE3904537A1 Process for the removal and disposal for the purposes of recycling or other use of spray material mist from the exhaust air and of spray material residues in toto in processes for the spray coating of articles with organochemical coatings |
| 08/16/1990 | DE3904170A1 Method for protecting flue gas desulphurisation plants from corrosion |
| 08/16/1990 | DE3903975A1 Removal of formaldehyde from gas streams, in particular for exhaust gas purification |
| 08/16/1990 | DE3833582A1 Selective fresh air separation |
| 08/16/1990 | DE3831669A1 Selective fresh air separation |
| 08/15/1990 | CN1044599A Column for absorption of gas |
| 08/15/1990 | CN1044598A Boiler flue-gas treater and treating method thereof |
| 08/15/1990 | CN1009164B Method for removal of ticl4-vapour from gas-streams |
| 08/14/1990 | US4948774 Metal-made carrier body for carrying thereon exhaust gas cleaning catalyst |
| 08/14/1990 | US4948572 Process for the recovery of sulfur dioxide from gas flows |
| 08/14/1990 | US4948567 Deodorizer for refrigerators or the like |
| 08/14/1990 | US4948401 Gas mixture separator utilizing pressure modulation |
| 08/14/1990 | US4948392 Heat input for thermal regenerative desiccant systems |
| 08/14/1990 | US4948391 Pressure swing adsorption process for gas separation |
| 08/11/1990 | WO1990009343A1 Process and device for evacuating the content of gas spaces of large containers containing pollutant substances |
| 08/11/1990 | WO1990009228A1 A process for the removal of nitrogen oxides from offgases from turbines |
| 08/11/1990 | CA2026665A1 Method and arrangement for the disposal of gas space contents of large-volume containers in the case of components which load the environment |
| 08/09/1990 | WO1990008932A1 High speed pressure swing adsorption liquid oxygen/liquid nitrogen generating plant |
| 08/09/1990 | WO1990008845A1 Removal of nitric oxide from waste gases and recovery as nitric acid |
| 08/09/1990 | WO1990008751A1 Carbon molecular sieves for purification of chlorofluorocarbons |
| 08/09/1990 | WO1990008683A1 Charge/purge control system for air dryer |
| 08/09/1990 | WO1990008589A1 Perovskite-type catalyst and processes for using it |
| 08/09/1990 | DE4003533A1 Harmful materials desorbed by very low pressure - are frozen in separate cooler chamber for disposal |
| 08/09/1990 | DE4003370A1 Flue gases etc. absorption tower - with primary-secondary absorption section, inner cylinder, gas passages, resin particle bed, nozzles and connecting lines |
| 08/09/1990 | DE4002495A1 Neutralising acidic condensate in heat exchanger - by contact with alkaline-reacting metal oxide |
| 08/09/1990 | DE3903510A1 Apparatus for removing volatile solvents and other environmentally polluting substances from exhaust gases |
| 08/09/1990 | DE3903445A1 Process for removing iodine and iodine compounds from hydrogen-containing gases and vapours |
| 08/09/1990 | DE3903055A1 Process for removing small amounts of noxious gases from an air/gas mixture |
| 08/09/1990 | CA2009563A1 Membrane separation device and method of manufacture |
| 08/08/1990 | EP0381601A1 Flue gas purification process |
| 08/08/1990 | EP0381236A1 Method of removing nitrogen oxides in exhaust gases from a diesel engine |
| 08/08/1990 | EP0381063A1 Process for the preparation of carrier material for platinum group metal three-way catalysts with a reduced H2S emission |
| 08/08/1990 | EP0381002A1 Process for the desorption of adsorbents |
| 08/08/1990 | EP0380817A1 A method and a device for treating or mixing components in gas or liquid streams |
| 08/08/1990 | EP0380742A1 Process for removing matter during flue gas scrubbing by drying and concentrating and apparatus for carrying out the process |
| 08/08/1990 | EP0380723A1 Process for separating nitrogen gas by pressure swing adsorption system |
| 08/08/1990 | CN2060207U Off-sulphur clarifier for domestic honeycomb briquet stove |
| 08/08/1990 | CN1044410A Regeneration for adsorbing dry material |
| 08/08/1990 | CN1009072B Process for the destruction of by-product tetranitromethane |
| 08/08/1990 | CN1009071B Sodium-limestone double alkali flue gas desulfurization process with improved limestone utilization |
| 08/08/1990 | CN1009056B Removel of mercury from gases |
| 08/07/1990 | USH808 Countercurrent flow, reduction, cryogenic separation |
| 08/07/1990 | US4946822 Catalyst carrier body having a supporting wall and a method for producing the same |
| 08/07/1990 | US4946820 Preparation and use of tin (IV) oxide dispersion |
| 08/07/1990 | US4946661 Process for removing nitrogen oxides |
| 08/07/1990 | US4946660 Desulphurization |
| 08/07/1990 | US4946659 Using urea as a reducing agent |
| 08/07/1990 | US4946620 Diethylene glycol dialkyl ether and polyethylene glycol dialkyl ether |
| 08/07/1990 | US4946581 Using hydrorefining catalysts |
| 08/07/1990 | US4946485 Air drier tower |
| 08/07/1990 | US4946480 Filter apparatus with improved filtration and saturation level detector |
| 08/07/1990 | US4946479 Apparatus for solvent recovery |
| 08/07/1990 | US4945838 Post-combustion chambers |
| 08/07/1990 | US4945721 Electromagnetic converter for reduction of exhaust emissions |
| 08/02/1990 | DE3927455C1 Liq. concn., diluting or filtering appts. - contg. semipermeable membrane forming part of elongated interior section in housing having specifically sealed cast end sections |
| 08/02/1990 | DE3907939A1 Device for cleaning the exhaust gases from diesel engines |
| 08/02/1990 | DE3902843A1 Process for purifying gases |
| 08/02/1990 | DE3902750A1 Catalyst reactor for exothermic chemical reactions between gaseous components |
| 08/02/1990 | DE3902546A1 Filter |
| 08/02/1990 | DE3902276A1 Process for regenerating a laden pressurised scrubbing medium |
| 08/02/1990 | DE3902275A1 Liquid distributor |
| 08/02/1990 | DE3901600A1 Process for treating the vacuum exhaust air of tar distillation plants |
| 08/02/1990 | DE3900988A1 Apparatus for exhaust gas purification made of plate electrodes for a catalytically active electrostatic precipitator |
| 08/02/1990 | CA2009091A1 Process for the desorption of adsorbents |
| 08/01/1990 | EP0380184A1 Removing hydrogen cyanide and carbon oxysulphide from a gas mixture |
| 08/01/1990 | EP0380143A2 An apparatus for denitration of exhaust gas |
| 08/01/1990 | EP0380134A1 Method for regenerating replacing or treating the catalyst in a hydroprocessing reactor |
| 08/01/1990 | EP0379975A2 Process and apparatus for adsorbing humidity from gases, especially from air |
| 08/01/1990 | EP0379895A1 Process for removal of iodine and iodine compounds from hydrogen containing gases and vapours |
| 08/01/1990 | EP0379591A1 Exhaust smoke purifier apparatus |
| 08/01/1990 | CN1044268A Molecular sieve adsorbent for removing trace kr, nitrogen oxides from xe |
| 08/01/1990 | CN1008971B Gas separations using membranes comprising perfluorinated polymers with ionomeric moieties |
| 08/01/1990 | CA2008396A1 Processes for the purification of flue gases |
| 07/31/1990 | US4944929 With sulfuric and nitric acid |
| 07/31/1990 | US4944917 Use of thiosulfate salt for corrosion inhibition in acid gas scrubbing processes |
| 07/31/1990 | US4944777 Separating hydrogen from a mixture of substances |
| 07/31/1990 | US4944776 Filtering using membrane cartridge |
| 07/31/1990 | US4944775 Preparation of poly(phenylene oxide) asymmetric gas separation membranes |
| 07/31/1990 | US4944273 Pollution control |
| 07/31/1990 | CA1272140A1 Separating hydrogen from a mixture of substances |
| 07/31/1990 | CA1272119A1 Hybrid membrane/cryogenic process for hydrogen purification |
| 07/31/1990 | CA1272078A1 Composite membrane for use in gas separation |
| 07/31/1990 | CA1272005A1 Process for chemicals and energy recovery |
| 07/30/1990 | CA2007907A1 Carbon molecular sieves for purification of chlorofluorocarbons |
| 07/26/1990 | WO1990008249A1 Metallic honeycomb structure, preferably catalyst support with microstructures for flow mixing |
| 07/26/1990 | WO1990007973A1 Process and installation for desulphuration of flue gases |
| 07/26/1990 | WO1990007972A1 Desulfurization of exhaust gas |
| 07/26/1990 | WO1990007971A1 Sorption of gaseous compounds of groups ii-vii elements |
| 07/26/1990 | WO1990007970A1 Compressed gas purifier |
| 07/26/1990 | DE4000188A1 Verfahren zur desulfurierung von gasfoermigen effluenten Method for phurisation of houses on gaseous effluent |
| 07/26/1990 | DE3902101A1 Apparatus for purifying exhaust gases |
| 07/26/1990 | DE3901812A1 Process for the waste water-free disposal of the scrubbing liquid arising in exhaust gas purification and laden with pollutants and apparatus for carrying out this process |
| 07/26/1990 | DE3901784A1 Process and adsorbent for removing iodine and/or organic iodine compounds from gases and/or vapours |
| 07/26/1990 | DE3901062A1 Carbon dioxide-absorbing composition |