| 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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| 05/15/1990 | US4925639 Removal of nitric oxide from waste gases and recovery as nitric acid |
| 05/15/1990 | US4925633 Combined catalytic baghouse and heat pipe air heater |
| 05/15/1990 | US4925614 Method of making shaped bodies for use in the construction trades from power-plant clarifier sludge |
| 05/15/1990 | US4925465 Vapor control insulation blanket |
| 05/15/1990 | US4925464 Fluid flow switching valve assembly and system |
| 05/15/1990 | US4925462 Processes for removing organochemical components |
| 05/15/1990 | US4925461 Process for separating nitrogen gas by pressure swing adsorption system |
| 05/15/1990 | US4925460 Adsorption; lithium exchanged |
| 05/15/1990 | US4925459 Using molecular sieve zeolite |
| 05/15/1990 | CA1269091A1 Non-woven activated carbon fabric |
| 05/15/1990 | CA1268911A1 Polyphosphazene gas separation membranes |
| 05/10/1990 | DE3932096A1 Air drier for vehicle pneumatic system - uses inductive sensor for measuring air humidity at output |
| 05/10/1990 | DE3837987A1 Process for separating organic constituents from exhaust gases from the preparation of aromatic intermediates |
| 05/10/1990 | DE3837712A1 Improved catalyst technology for the elimination of pollutants from the exhaust gas of internal combustion engines |
| 05/10/1990 | DE3837429A1 Process for treating hydrogen sulphide-containing residual gases |
| 05/10/1990 | DE3835161A1 Exhaust gas purification by means of wet-chemical catalytic oxidation with atmospheric oxygen |
| 05/10/1990 | CA2002670A1 Gas resonance device |
| 05/10/1990 | CA2002668A1 Pressure swing gas separation |
| 05/09/1990 | EP0367741A1 Process for the removal of sulfur dioxide from hot flue gases |
| 05/09/1990 | EP0367717A1 Apparatus for carrying out sorption processes |
| 05/09/1990 | EP0367618A1 Process for producing carbon monoxide gas |
| 05/09/1990 | EP0367587A2 Diesel engine exhaust oxidizer |
| 05/09/1990 | EP0367574A2 Ozone decomposition catalyst and method |
| 05/09/1990 | EP0367148A1 Agents and method for purifying gases and waste gases from heavy metals, and method of producing these agents |
| 05/09/1990 | EP0366876A1 Exhaust gas treating apparatus |
| 05/09/1990 | EP0366750A1 Pollution abatement facility for exhaust gases |
| 05/09/1990 | EP0202285B1 Fluidized bed reactor for the thermal elimination of waste |
| 05/09/1990 | CN2056867U Smoke processing device for boiler |
| 05/09/1990 | CN1041885A Improved membrane separation system and process |
| 05/09/1990 | CN1007889B Process for the removal of no from fluid streams using a composition of a water-soluble polymeric chelate and polyvalent metal |
| 05/09/1990 | CN1007878B Platium-rare-earths catalysts used for conversion of the gas-eous impurities in carbondioxde laser and production method of the catalyst |
| 05/09/1990 | CN1007876B Contacting gas and liquid |
| 05/08/1990 | US4923842 Lanthanum containing catalyst for treating automotive exhaust |
| 05/08/1990 | US4923688 Wet scrubber process for removing total reduced sulfur compounds from industrial gases |
| 05/08/1990 | US4923687 Method for removing silane compounds from silane-containing exhaust gases |
| 05/08/1990 | US4923485 Process for separating organic constituents from waste gases of the production of aromatic intermediates |
| 05/08/1990 | US4923109 Method for producing a honeycomb body, especially a catalyst carrier body having sheet metal layers twisted in opposite directions |
| 05/08/1990 | US4922840 Reacting gaseous sufur compounds of combustion product with particle sorbent at high temperature |
| 05/08/1990 | CA1268730A1 Purification of gases containing mercury and recovery of metallic mercury |
| 05/08/1990 | CA1268718A1 Filter for separating substances having lipophilic and/or oleophilic and/or apolar properties from different liquids, gases and vapors |
| 05/08/1990 | CA1268716A1 Enhanced pressure swing adsorption process and system |
| 05/03/1990 | WO1990004742A1 A method and an apparatus for continuously purifying an oxygen-containing gas for combustible contaminants |
| 05/03/1990 | WO1990004450A1 Catalyst |
| 05/03/1990 | WO1990004449A1 Process for the removal of acid forming gases from exhaust gases |
| 05/03/1990 | WO1990004448A1 Method of and apparatus for treating waste gas by irradiation with electron beam |
| 05/03/1990 | WO1990004447A1 Cross-fed moving bed reactor with rectangular cross-section for granular adsorbent |
| 05/03/1990 | DE3935904A1 Modified calcium hydroxide powder for heavy metal removal from gas |
| 05/02/1990 | EP0366539A2 Pitch-based activated carbon fibers and process for preparing the same |
| 05/02/1990 | EP0366254A1 Deoxidizer sheet |
| 05/02/1990 | EP0366206A2 Removing hydrogen sulphide from a gas mixture |
| 05/02/1990 | EP0366182A1 Method for the disposal of a residue containing sodium sulfate |
| 05/02/1990 | EP0365899A2 Reactor for carrying out combustion processes |
| 05/02/1990 | EP0365566A1 Process for removing oxides of nitrogen from flue gases. |
| 05/02/1990 | CN2056605U Simple high efficient purifying device for controlling atmosphere pollution |
| 05/02/1990 | CN1041741A Method for treating cyanide containing waste water |
| 05/02/1990 | CN1041704A Process for desulphurization of coke-oven gas |
| 05/01/1990 | US4921886 Process for the dry removal of polluting material from gas streams |
| 05/01/1990 | US4921830 Catalyst for the oxidation of carbon monoxide |
| 05/01/1990 | US4921829 Catalyst for purifing exhaust gases |
| 05/01/1990 | US4921826 Process for producing an active carbon catalyst |
| 05/01/1990 | US4921683 Nitric oxide abatement with polymeric cobalt(III) chelates |
| 05/01/1990 | US4921682 Process for removing hydrogen sulphide from gas streams |
| 05/01/1990 | US4921651 Thin film polymer blend membranes |
| 05/01/1990 | CA2001891A1 Mobile aerial lift with boom structure having insulated boom section containing a clean, moisture free environment and method |
| 05/01/1990 | CA2001890A1 Removal of hydrogen sulfide from fluid streams with minimum production of solids |
| 05/01/1990 | CA2001226A1 Diesel engine exhaust oxidizer |
| 05/01/1990 | CA1268454A1 Preparation of high surface area agglomerates for catalyst support and preparation of monolithic support structures containing them |
| 05/01/1990 | CA1268318A1 Process for the purification of exhaust gases containing oxides of nitrogen and sulfur |
| 04/30/1990 | CA2001880A1 Process for removing liquid containing chlorinated organic compounds from liquide-impregnated components of appliance and apparatus for carrying out said process |
| 04/30/1990 | CA2001235A1 Process for the removal of sulfur dioxide from hot flue gases |
| 04/25/1990 | EP0365490A1 Apparatus and method for the removal of impurity gases from inert gases and the ensurance of extremely low levels of hydrogen |
| 04/25/1990 | EP0365308A2 Exhaust gas-purifying catalyst, process for producing the catalyst and use of the catalyst |
| 04/25/1990 | EP0365262A1 A method and an apparatus for continuously purifying an oxygen-containing gas of its combustible contaminants |
| 04/25/1990 | EP0365066A1 An air drier tower |
| 04/25/1990 | EP0364908A2 Use of a hygroscopic diluted solution of salt for adsorption cooling/air conditioning with low temperature heat |
| 04/25/1990 | EP0364712A1 Process for eliminating nitrogen oxides from exhaust gases |
| 04/25/1990 | EP0364694A1 Process for reducing nitrogen oxides in waste gases with a zeolite containing catalyst |
| 04/25/1990 | EP0364628A1 Gas, isotope, and liquid separations by membranes |
| 04/25/1990 | EP0364617A1 Apparatus for dispersing exhaust gases from a power station |
| 04/25/1990 | EP0364568A1 SOx/NOx pollution control composition and method for esp brown plume control |
| 04/25/1990 | CN1041575A Regeneration of chelated polyvalent metal solutions by controlled potental electrolysis |
| 04/25/1990 | CN1041538A Membrane unit and membrane device for separation of superpure hydrogen from hydrogen containing gas mixture |
| 04/24/1990 | US4920088 Catalyst for the oxidation of carbon monoxide |
| 04/24/1990 | US4920015 Electrochemical H2 S conversion |
| 04/24/1990 | US4919914 Removal of hydrogen sulphide from gaseous streams |
| 04/24/1990 | US4919905 Reducing nitrogen oxide into harmless nitrogen using denitrating catalyst while introducing mmonia |
| 04/24/1990 | US4919904 With alkali metal salts in aqueous solutions; removing carbon dioxide |
| 04/24/1990 | US4919903 Method of catalytically oxidizing methanol vapor accompanied by little or no excess oxygen |
| 04/24/1990 | US4919902 Contacting gases with composite consisting of refractory support with lanthanum oxide, another rare earth oxide, noble metal components |
| 04/24/1990 | US4919860 Manufacture of porous carbon membranes |
| 04/24/1990 | US4919814 System and method for treating wastewater collected from septic tanks and similar installation |
| 04/24/1990 | US4919810 Porous membrane |
| 04/24/1990 | US4919696 Supercooling type mist eliminator apparatus |
| 04/24/1990 | US4919695 Apparatus for drying gas |
| 04/24/1990 | US4919690 Method for purifying a continuous flow of helium and/or neon gas |
| 04/24/1990 | US4918939 Self-contained air drying unit |
| 04/24/1990 | US4918837 Device for generating a continuous stream of dried gases |
| 04/24/1990 | CA1268165A1 Catalyst for decreasing the content of nitrogen oxides in flue gases |
| 04/24/1990 | CA1268018A1 Catalyst for decreasing the content of nitrogen oxides in flue gases |
| 04/21/1990 | CA2001223A1 Process for the removal of acid forming gases from exhaust gases |