| 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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| 04/21/1990 | CA2001002A1 Process for the removal of sulfur dioxide and hydrogen chloride from hot gases |
| 04/20/1990 | CA2000998A1 Catalyst |
| 04/19/1990 | WO1990003843A1 A lanthanum containing catalyst for treating automotive exhaust |
| 04/19/1990 | WO1990003837A1 Method for binding of the sulfur compounds formed in a pulverized-coal boiler |
| 04/19/1990 | WO1990003831A1 Cross-flow filtration device and method of making |
| 04/19/1990 | DE3933731A1 Condensing solvent vapours from waste air - by cold washing on progressively reducing scale at reducing temps. |
| 04/19/1990 | CA2000018A1 Spectacular break-through in gas, isotope and liquid separations and a revolutionary advance in and a master key for membrane technology and science |
| 04/18/1990 | EP0364310A1 Method of catalytically purifying an aqueous effluent containing acetic acid |
| 04/18/1990 | EP0363684A1 Exhaust gas denitrification apparatus |
| 04/18/1990 | EP0363664A2 Process for desulfurisation of coke oven gas |
| 04/18/1990 | CN1041338A Process for removing sulfides |
| 04/18/1990 | CN1041333A Method and equipment for preparing nitrogen by pressure-changing absorption |
| 04/18/1990 | CN1041289A Hollow fiber multimembrane cells and permeators |
| 04/18/1990 | CN1041288A Process for catalystically removing nitrogen oxides from exhaust gases by means of reducing agent |
| 04/18/1990 | CN1007620B Reclaiming argon from hydrogen depletion blowing of sythesis ammonia device using separation process of hypothermia and non hypothermia |
| 04/18/1990 | CN1007619B Recovering argon from blowing air of ammonia converter by separating method of combining low temp. with non low temp. |
| 04/17/1990 | US4918042 Exhaust gas purifying catalyst |
| 04/17/1990 | US4917875 Cyclic continuous adsorption; with regeneration of adsorber |
| 04/17/1990 | US4917874 Desulfurization process |
| 04/17/1990 | US4917873 Waste gas washing, controlling air pollution produced by industries |
| 04/17/1990 | US4917869 Lime hydrating plant and process of lime hydrating as well as flue gas desulfurization plant with such a lime hydrating plant and process of flue gas desulfurization |
| 04/17/1990 | US4917862 Container having plurality of cells partially filled with disintegration-filled activated carbon particles |
| 04/17/1990 | US4917820 Phosphoric acid, phosphorous acid, hypophosphorous acid, hypochlorous acid or salt thereof and specified metals or compounds of metal |
| 04/17/1990 | US4917711 Adsorbents for use in the separation of carbon monoxide and/or unsaturated hydrocarbons from mixed gases |
| 04/17/1990 | US4917710 Process for recovering oxygen enriched gas |
| 04/17/1990 | US4917024 Coal fired power plant with pollution control and useful byproducts |
| 04/17/1990 | US4916897 Exhaust gas purifying apparatus built-in to a muffler for a diesel engine |
| 04/17/1990 | CA1267882A1 Catalyst for decreasing the content of nitrogen oxides in flue gases |
| 04/17/1990 | CA1267880A1 Catalyst for decreasing the content of nitrogen oxides in flue gases |
| 04/17/1990 | CA1267879A1 Preparation of monolithic catalyst support structures having an integrated high surface area phase |
| 04/17/1990 | CA1267852A1 Filter for air circulator |
| 04/17/1990 | CA1267771A1 Elimination process of cos and cs.sub.2 compounds from an industrial gas |
| 04/12/1990 | DE3931270A1 Purifying sulphur di:oxide-contg. gas - esp. chlorine and fluorine cpd.-contg. gas from regenerating desulphurisation coke |
| 04/11/1990 | EP0363194A2 Device for controlling relative humidity within a substantially sealed container |
| 04/11/1990 | EP0363009A1 Wet-type exhaust gas desulfurizing apparatus |
| 04/11/1990 | EP0362966A2 Catalysts and methods for denitrization |
| 04/11/1990 | EP0362960A2 Use of a catalyst composition for denitrization and denitrizing catalysts |
| 04/11/1990 | EP0362898A2 Apparatus and method for separating gases |
| 04/11/1990 | EP0362713A1 Process for the removal of sulfides |
| 04/11/1990 | EP0362553A1 Process and device for the thermal treatment of refuse |
| 04/11/1990 | EP0362483A1 Process for catalytic removal of nitrogen oxides from waste gases by a reducing agent |
| 04/11/1990 | EP0362448A1 Plate-shaped catalyst and method of producing same |
| 04/11/1990 | EP0362436A1 Improved membrane separation system and process |
| 04/11/1990 | CN1041114A Method for gas separation using helically wound hollow fibers permeable membrane cartridge |
| 04/11/1990 | CN1041113A Prevention of membrane degradation |
| 04/11/1990 | CN1041112A Improved pressure swing adsorption process |
| 04/10/1990 | US4916630 Bed tester for molecular sieve oxygen concentrator |
| 04/10/1990 | US4916109 Palladium zirconium oxide |
| 04/10/1990 | US4916107 Calcined mixture of titanium oxide, tungsten oxide and at least one oxide of vanadium, iron, niobium, molybdenum |
| 04/10/1990 | US4916106 Supported catalyst and process for its production for the reduction of nitrogen oxides |
| 04/10/1990 | US4916105 Catalyst and metal ferrites for reduction of hydrogen sulfide emissions from automobile exhaust |
| 04/10/1990 | US4916001 Unitized catalyst panel |
| 04/10/1990 | US4915922 Process for preparation of oxidazable oxides of nitrogen from waste gas streams |
| 04/10/1990 | US4915921 Adosrption, catalytic reduction |
| 04/10/1990 | US4915920 Dry method of purifying flue gas |
| 04/10/1990 | US4915916 Method of and apparatus for treating waste gas by irradiation with electron beam |
| 04/10/1990 | US4915914 Combing gas and waste dust in water to precipitate salts for use as fertilizer and kiln feedstock |
| 04/10/1990 | US4915838 Membrane dehumidification |
| 04/10/1990 | US4915711 Pressure swing adsorption for high recovery and purity |
| 04/10/1990 | US4915036 Boiler and injector for reducing the concentration of pollutants in an effluent |
| 04/10/1990 | CA1267609A1 Separation of water from organic liquids |
| 04/10/1990 | CA1267521A1 Amine charge control process in a natural gas purification tower |
| 04/05/1990 | WO1990003570A1 A magerast-type probe for determining the oxygen concentration in exhaust gases |
| 04/05/1990 | WO1990003220A1 Honeycomb structure, in particular catalyst support, composed of a plurality of interlaced bundles of sheet metal |
| 04/05/1990 | DE3927096A1 Reducing content of nitrogen oxide(s) in coke oven flue gas - by introduction of carbonaceous gas as reducing agent |
| 04/04/1990 | EP0362023A1 Process of dehydration, of deacification and of separation of a condensate from a natural gas |
| 04/04/1990 | EP0362015A1 Method for generating heat with desulfurization of effluents using sorbent particles with a fine particle size in an entrained bed |
| 04/04/1990 | EP0361895A2 Regeneration of chelated polyvalent metal solutions by controlled potential electrolysis |
| 04/04/1990 | EP0361773A1 Method of recovering radioactive iodine in a spent nuclear fuel retreatment process |
| 04/04/1990 | EP0361556A1 Process for the treatment of residues from waste gas purification |
| 04/04/1990 | EP0361541A2 Pressure swing adsorption process |
| 04/04/1990 | EP0361385A2 Deodorizing method and deodorizing catalyst |
| 04/04/1990 | EP0361277A2 Compost filter for continuous renewal of the filter bed for purification and deodorization of gaseous emissions during composting of solid urban and similar waste |
| 04/04/1990 | EP0360941A2 Decompostion of volatile organic halogenated compounds contained in gases and aqueous solutions |
| 04/04/1990 | EP0360856A1 Process for reducing the concentration of pollutants in an effluent. |
| 04/04/1990 | CN1040930A Apparatus for desulfurization of waste pases by wet process |
| 04/04/1990 | CN1040929A Turndown control method for membrane separation systems |
| 04/04/1990 | CA2000027A1 Hydrogen sulfide removal and sulfide recovery |
| 04/03/1990 | US4914218 In pressure swing adsorption of gas mixture containing a more strongly absorbed secondary component |
| 04/03/1990 | US4914076 Method of producing an adsorbent for separation and recovery of CO |
| 04/03/1990 | US4914073 Process for the manufacture of catalytic elements and catalytic elements so produced |
| 04/03/1990 | US4914071 Method for preparing a catalyst |
| 04/03/1990 | US4914070 Process for the production of silicon carbide with a large specific surface area and use for high-temperature catalytic reactions |
| 04/03/1990 | US4913942 Regenerative desiccant bundle |
| 04/03/1990 | US4913850 Process for the removal of iodine and organic iodine compounds from gases and vapors using silver-containing zeolite of the faujasite type |
| 04/03/1990 | US4913818 Hygroscopic electrolyte with a dryness to increase the flux |
| 04/03/1990 | US4913709 Adsorption process for recovering two high purity gas products from multicomponent gas mixtures |
| 04/03/1990 | US4913637 Sulfur recovery system |
| 04/03/1990 | US4913068 Method for improving utilization of sulphur-absorbent containing calcium in a power plant and equipment for performing the method |
| 04/03/1990 | US4912934 Forming corrosion resistance film, of molybfrnum-oxides and iron oxides on inside wall |
| 04/03/1990 | US4912928 Exhaust heat exchanger system |
| 04/03/1990 | CA1267269A1 Regenerative process for the elimination of mercaptans carried in a gas |
| 03/29/1990 | DE3931953A1 Oxidation of fire and explosion hazardous components in gases - has templ sensors assigned to closed heating chambers and reaction and coupled to variable heater via control unit |
| 03/29/1990 | DE3832635A1 Process for producing carbon-containing catalysts having adsorptive properties |
| 03/28/1990 | EP0360752A2 Apparatus for dehumidifying gas |
| 03/28/1990 | EP0360591A2 Honeycomb structural body and method of producing the same |
| 03/28/1990 | EP0360548A1 A process for producing a denitration catalyst |
| 03/28/1990 | EP0360121A1 Oxygen enriched air system |
| 03/28/1990 | EP0359991A1 Process for removing carbon dioxide and possibly hydrogen sulphide from gases |
| 03/28/1990 | EP0359969A1 Filter for the purification of fluids |