| 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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| 12/12/1990 | EP0401495A1 Enclosure for controllers |
| 12/12/1990 | EP0401486A1 Selectively permeable membrane |
| 12/12/1990 | EP0401285A1 Carbon dioxide removal using aminated carbon molecular sieves. |
| 12/12/1990 | CN1047632A Process for removal of nox and sox from gas streams using water-soluble, polymeric chelate of polyvalent metal and membrane separation means |
| 12/12/1990 | CN1047631A Removal of hydrogen sulfide with on site generated sulfite |
| 12/12/1990 | CN1010751B Semi-permeable membranes comprising predominantly polycarbonates derived from tetrahalobisphenols |
| 12/12/1990 | CN1010749B Cleaning process of wet-exhaust gas and equipment thereof |
| 12/12/1990 | CN1010748B Process for causing gaseous trace element particules to pass from a flowing hot gas into a dust by means of water |
| 12/11/1990 | US4977129 Auto exhaust catalyst composition having low H2 S emissions and method of making the catalyst |
| 12/11/1990 | US4977127 Containing oxides of titanium and vanadium; for use with arsenic impurities; durability |
| 12/11/1990 | US4977090 Process for the treatment of oxygenated exhaust gases |
| 12/11/1990 | US4976944 Purification of silane gas |
| 12/11/1990 | US4976941 Contacting with catalyst in form of cordierite honeycomb carrier supporting platinum in specific loading weight |
| 12/11/1990 | US4976937 Adding mixture of calcium thiosulfate and calcium polysulfides to recycle tank |
| 12/11/1990 | US4976936 Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges |
| 12/11/1990 | US4976935 Regeneration of solvent in H2 S removal from gases |
| 12/11/1990 | US4976929 Electrically heated catalytic converter |
| 12/11/1990 | US4976751 Method for purification of exhaust air |
| 12/11/1990 | US4976611 Method and apparatus for the thermal treatment of waste materials |
| 12/11/1990 | US4976116 Cold-air generating device |
| 12/11/1990 | US4976109 Refrigerated containers |
| 12/11/1990 | CA1277603C Catalytic converter for a diesel engine |
| 12/08/1990 | CA2016564A1 Selectively permeable membrane |
| 12/07/1990 | CA2014248A1 Selective removal of hydrogen sulfide over a nickel-promoted absorbing composition |
| 12/06/1990 | DE4022087A1 Converting solvent-laden gases into frozen snow - in which has purificn. stream descending towards base separator |
| 12/06/1990 | DE3917983A1 Removing nitrogen oxide(s) from flue gases - by incorporating redn. gas and catalytically reducing |
| 12/05/1990 | EP0400836A1 Coal fired power plant with pollution control and useful byproducts |
| 12/05/1990 | EP0400823A2 Method of separating a mixed hydrogen/hydrogen selenide vapor stream |
| 12/05/1990 | EP0400812A2 Copolyimide gas separation membranes derived from substituted phenylene diamines and substituted methylene dianilines |
| 12/05/1990 | EP0400811A1 Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines |
| 12/05/1990 | EP0400698A1 Converter for the catalytic conversion of gaseous components into gases |
| 12/05/1990 | EP0400591A2 Supported catalysts for removing nitrogen oxides carbon monoxide and organic compounds from exhaust gases |
| 12/05/1990 | EP0400590A1 Use of a supported transition metal phthalocyanine catalyst to remove organic compounds containing oxygen and/or nitrogen out of exhaust gases |
| 12/05/1990 | EP0400460A1 Moisture-absorbent compositions |
| 12/05/1990 | CN1047460A Method of treating waste gas using electron beam irradition |
| 12/04/1990 | US4975406 Washcoat layer with support, metal oxide promoter and active noble metals |
| 12/04/1990 | US4975264 Process for purifying flue gases containing sulfur dioxide |
| 12/04/1990 | US4975257 Lin's flue gas desulfurization process according to reaction mechanism |
| 12/04/1990 | US4975256 Process using catalysts for selective catalytic reduction denox technology |
| 12/04/1990 | US4975255 Reacting with a base, cooling below melting points of sulfur, oxidize with a chelate complex to get elmental sulfur and reduce oxidant again regenerate it by oxidation |
| 12/04/1990 | US4975254 Catalytic oxidation |
| 12/04/1990 | US4975251 Potting soil layer, plant and rootball on a support with air pumped from below and circulated back into room |
| 12/04/1990 | US4974777 Means and methods for controlling the drying of wet gas |
| 12/04/1990 | CA1277249C Removal of water and carbon dioxide from atmospheric air |
| 12/04/1990 | CA1277248C Adsorption apparatus |
| 12/04/1990 | CA1277247C Sorbing apparatus |
| 12/01/1990 | WO1990014873A1 Two-stage condenser |
| 12/01/1990 | CA2055610A1 Two-stage condenser |
| 12/01/1990 | CA2018008A1 Removal of hydrogen sulfide with on site generated sulfite |
| 12/01/1990 | CA2015423A1 Copolyimide gas separation membranes derived from substituted phenylene diamines and substituted methylene dianilines |
| 12/01/1990 | CA2015422A1 Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines |
| 11/30/1990 | WO1990014876A1 Purification of sulphide-containing gases |
| 11/29/1990 | WO1990014156A1 Fluidized bed reactor installation |
| 11/29/1990 | WO1990014147A1 Hydrocarbon vapour recovery |
| 11/29/1990 | DE3917271A1 Removal of nitrogen oxide(s) and sulphur di:oxide - from power plant exhaust using travelling bed of carbonaceous adsorbent with ammonia injected into gap between adsorbent and hearth |
| 11/29/1990 | DE3916522A1 Reducing noxious emissions from combustion processes |
| 11/28/1990 | EP0399980A2 Removal of NOx fumes |
| 11/28/1990 | EP0399892A1 Combustion engine exhaust gas treatment multifonctional catalyst which contains uranium, at least one uranium promoter and at least one precious metal and process for its production |
| 11/28/1990 | EP0399891A1 Multifonctional catalysts which contain cerium, uranium and at least a metal for converting pollutants from exhaust gases of combustion engines, and their preparation |
| 11/28/1990 | EP0399833A1 Novel solid multi-component membranes, electrochemical reactor and use of membranes and reactor for oxidation reactions |
| 11/28/1990 | EP0399730A1 Sorbent filtration device |
| 11/28/1990 | EP0399658A2 Purification of fluids |
| 11/28/1990 | EP0399608A2 Process for removing acid gas from a gas mixture containing acid gas |
| 11/28/1990 | EP0399416A1 Method for removal of dust contained in a gas and for reaction of a toxic component of said gas |
| 11/28/1990 | EP0399404A2 Process for reducing SO2 and/or NOx emissions in combustion processes |
| 11/28/1990 | EP0399302A2 Process for the purification of a gas using an electrically heated MnO2 catalyst |
| 11/28/1990 | EP0399203A2 Monolith or honeycomb catalyst |
| 11/28/1990 | EP0399085A1 Method and apparatus for washing impurities out of crude gases |
| 11/28/1990 | EP0398952A1 Composition, method and apparatus for removal of hydrogen sulfide |
| 11/28/1990 | CN1047266A Improved production of dry, high purity nitrogen |
| 11/28/1990 | CN1047219A Low-temp. desulfurizer for removing organic sulfur in gas |
| 11/28/1990 | CN1047218A Purifying method for desulfurization and dust removal of flue gas |
| 11/28/1990 | CN1047217A Apparatus for removing carbon dioxide and water from methane-riched gas mixture |
| 11/28/1990 | CN1010554B Process and device for separation and recovery of volatile solvents |
| 11/28/1990 | CN1010553B Recovery method and equipment for nitrogen oxide |
| 11/28/1990 | CN1010552B Process of treating pressurized laden absorbent solution |
| 11/27/1990 | US4973606 Membranes of organic polymers which contain crystalline carrier compounds, and their preparation |
| 11/27/1990 | US4973570 Vanadium pentaoxide, potassium salt on diatomeaceous earth carrier |
| 11/27/1990 | US4973459 Apparatus and method for removing gaseous contaminants and particulate contaminants from a hot gas stream |
| 11/27/1990 | US4973458 Hollow ceramic barrier filters |
| 11/27/1990 | US4973457 Decomposition of dinitrogen oxide from combustion of ammonia and oxygen |
| 11/27/1990 | US4973456 Use of salt hydrates as reversible absorbents of acid gases |
| 11/27/1990 | US4973434 Immobilized liquid membrane |
| 11/27/1990 | US4973340 Method of removing hydrosulfide from partial oxidation gas |
| 11/27/1990 | US4973339 Pressure swing absorption process and system for gas separation |
| 11/27/1990 | CA1276889C Pressure swing adsorption process |
| 11/24/1990 | CA2017271A1 Method and plant for producing high pressure gazeous oxygen |
| 11/22/1990 | EP0398847A2 Air filter for civil and industrial applications |
| 11/22/1990 | EP0398766A1 Ozone decomposing |
| 11/22/1990 | EP0398765A1 Ozone decomposition |
| 11/22/1990 | EP0398752A1 Catalyst for reducing nitrogen oxides |
| 11/22/1990 | EP0398479A1 Catalytic converter substrate and assembly |
| 11/22/1990 | EP0398339A2 Adsorptive process for producing two gas streams from a gas mixture |
| 11/22/1990 | EP0398263A2 Electrophotographic apparatus |
| 11/22/1990 | EP0398262A2 Electrophotographic apparatus |
| 11/22/1990 | EP0398199A1 Desulfurizing method and equipment for exhaust gas from combuster |
| 11/22/1990 | EP0398141A2 Process for vaporisation without residues of ammonia water with following dotation of an air stream |
| 11/22/1990 | EP0398139A1 Heat-regenerative adsorption plant for moist and gaseous media with two phase regeneration |
| 11/22/1990 | EP0397856A1 Method and apparatus for purifying air |
| 11/22/1990 | EP0397726A1 Process and installation for desulphuration of flue gases |