| 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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| 01/09/1991 | EP0406446A1 Desulfurization of exhaust gas |
| 01/09/1991 | EP0406263A1 Method for cleaning gases. |
| 01/09/1991 | EP0215843B1 Enhanced pressure swing adsorption process and system |
| 01/09/1991 | CN1048337A Apparatus for cleaning flue gases |
| 01/09/1991 | CN1011120B Industrial smoke purifying equipment |
| 01/08/1991 | US4983367 Absorption by agglomerants containing compounds of zinc, copper and other elements |
| 01/08/1991 | US4983366 Method for the catalytic conversion of waste gases containing hydrocarbon, halogenated hydrocarbon and carbon monoxide |
| 01/08/1991 | US4983365 Temporary temperature increase of absorbent bed |
| 01/08/1991 | US4983364 Multi-mode combustor |
| 01/08/1991 | US4983303 Method of separating a particular component from its liquid solution |
| 01/08/1991 | US4983261 Method of applying a catalyst layer consisting of precious metals and/or precious metal compounds to a substrate of ceramic material |
| 01/08/1991 | US4983194 Production of high purity argon |
| 01/08/1991 | US4983190 Pressure-swing adsorption system and method for NBC collective protection |
| 01/08/1991 | US4982782 Method and apparatus for simultaneous heat and mass transfer |
| 01/08/1991 | US4982512 Solvent |
| 01/08/1991 | CA1278761C Microbiological desulfurization of gases |
| 01/05/1991 | CA2020026A1 Lance-type injection apparatus |
| 01/03/1991 | DE4009575A1 Supported catalyst for carbon mon:oxide oxidn., esp. in exhaust gas |
| 01/02/1991 | EP0406218A1 Process for preparing ozone |
| 01/02/1991 | EP0405619A1 A process for treating a chlorine-containing effluent and and apparatus therefor |
| 01/02/1991 | EP0405613A1 Heat exchanger |
| 01/02/1991 | EP0405597A1 Permeator with selectable flow rates |
| 01/02/1991 | EP0405565A1 Process and apparatus for cleaning fumes containing nocif substances while avoiding residual salts |
| 01/02/1991 | EP0405404A1 Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors |
| 01/02/1991 | EP0405290A1 Process and installation for cleaning of combustion gases containing polluting substances |
| 01/02/1991 | EP0405288A1 Process and device for obtaining pure oxygen |
| 01/02/1991 | EP0405265A1 Polyarylene sulfide films for gas separation |
| 01/02/1991 | EP0405211A1 Device for the process of transforming solid, extensive dry waste products into a glaseous form |
| 01/02/1991 | EP0405119A1 Process and apparatus for separating metallic mercury from gas obtained by gasification or combustion of coal |
| 01/02/1991 | EP0405073A2 Air dryer for air pressure plants chargeable by a compressor, containing at least one air storing container, especially for air pressure brakes of vehicles |
| 01/02/1991 | EP0404958A1 Catalyst for liquid-phase oxidation of sulfur-containing compounds |
| 01/02/1991 | EP0404813A1 Method for eliminating volatile impurities in gas |
| 01/02/1991 | CN1048207A Method for processing organic waste and apparatus therefor |
| 01/02/1991 | CN1048204A Improved process for recovering acidic gases |
| 01/02/1991 | CN1048201A Method for operation of claus-apparatus |
| 01/02/1991 | CN1048173A Iodine-containing active carbon catalyst and its application in process for removing and recovering sulfur dioxide of industrial exhaust gas |
| 01/02/1991 | CN1048169A Novel solid multi-component membranes, electrochemical reactor and use of membranes and reactor for oxidation reactions |
| 01/02/1991 | CA1278507C Flue gas scrubber system |
| 01/01/1991 | US4982039 Noncatalytic reduction, pyrolysis |
| 01/01/1991 | US4981660 Selective hybrid NOx reduction process |
| 01/01/1991 | US4981659 With ammonia or hydrogen, supported catalyst |
| 01/01/1991 | US4981501 Adsorption filter with high air permeability |
| 01/01/1991 | US4981499 Process and plant for separating a gaseous mixture by adsorption |
| 01/01/1991 | US4981265 Liquid distributor for mass-transfer and heat-exchange columns |
| 12/27/1990 | WO1990016071A1 Nuclear power station with a safety shell and pressure-relieving process |
| 12/27/1990 | WO1990015659A1 Process for removing ionizable impurities from non-aqueous fluids |
| 12/27/1990 | WO1990015657A1 Process for the separation of polycyclic hydrocarbons and heavy metals from waste gases |
| 12/27/1990 | EP0404385A1 Catalyst and process for the oxidation of carbonaceous particulates |
| 12/27/1990 | EP0404046A1 Catalyst composition for the oxidation of carbon monoxide |
| 12/27/1990 | EP0403984A1 Supported catalyst for ozone decomposition |
| 12/27/1990 | EP0403879A1 Arsenic resistent mixed oxides catalyst |
| 12/27/1990 | EP0403742A1 Supported catalyst for the oxidation of carbon monoxide |
| 12/27/1990 | EP0403485A1 Method for cleaning flue gases. |
| 12/25/1990 | USRE33502 Asymmetric membranes |
| 12/25/1990 | US4980471 Preparation of piperazinones for use as sulfur dioxide absorbents |
| 12/25/1990 | US4980335 With strongly basic anion exchange group for adsorption of non-carbon dioxide gases |
| 12/25/1990 | US4980146 Combined hydrolysis and hydrogenation to convert to hydrogen sulfide and water vapor, cooling and catalytic oxidation, cooling and separating sulfur |
| 12/25/1990 | US4980140 Selective removal of carbonyl sulfide from a hydrogen sulfide containing gas mixture |
| 12/25/1990 | US4980139 Using bastnasite ore |
| 12/25/1990 | US4980138 Heating, contacting stream with fly ash or lime and high carbon ash, high vanadium residual oil ash or iron oxide |
| 12/25/1990 | US4980137 Process for NOx and CO control |
| 12/25/1990 | US4980099 Airfoil lance apparatus for homogeneous humidification and sorbent dispersion in a gas stream |
| 12/25/1990 | US4980040 By heating under photoenergy absorbable by added metal oxide catalyst to decompose to nitrogen and oxygen |
| 12/25/1990 | US4979966 Process and apparatus for the dehydration, deacidification, and separation of a condensate from a natural gas |
| 12/25/1990 | US4979965 Method of dehumidifying gases |
| 12/20/1990 | DE3919438A1 Auxiliary low pressure air regenerating air dryer - is supplied from emptying consumer unit to intermediate balancing container |
| 12/20/1990 | DE3919297A1 Combining washing of hydrocarbon from waste air - with bio-filtration of washings |
| 12/20/1990 | DE3918430A1 Sorption and membrane solvent vapour sepn. processes - are combined in multi-wall structure |
| 12/19/1990 | EP0402899A1 Process for preparing catalysts for oxidation of carbon monoxide |
| 12/19/1990 | EP0402801A2 Method for the preparation of crystalline and zeolitic aluminosilicates |
| 12/19/1990 | EP0402783A2 Reactor |
| 12/19/1990 | EP0402704A1 Method of removing hydrogen sulphide from combustible exhaust gases |
| 12/19/1990 | EP0402507A1 Method of improving handling characteristics of froth of elemental sulfur particles |
| 12/19/1990 | CN2067789U High-efficient energy-saving duster |
| 12/19/1990 | CN1047929A Control casings |
| 12/19/1990 | CN1010861B Porous cellulose ester articles having striated surfaces |
| 12/19/1990 | CN1010835B Electrostatic dust remover for boiling furnace |
| 12/19/1990 | CN1010830B Process for separating gaseous mixture by adsorption |
| 12/19/1990 | CA2015100A1 Catalyst composition for the oxidation of carbon monoxide |
| 12/18/1990 | US4978514 Combined catalytic/non-catalytic process for nitrogen oxides reduction |
| 12/18/1990 | US4978513 Catalyst for the oxidation of carbon compounds |
| 12/18/1990 | US4978512 Contacting sulfides with reaction product of alkalolamine and aldehyde |
| 12/18/1990 | US4978439 Catalytic hydrodesulfurization of high-sulfur stream, then removal of hydrogen sulfide |
| 12/18/1990 | US4978430 Evaporation, separation of water vapor with polyimide membrane selective permeation |
| 12/18/1990 | CA1277953C Stack gas emissions control system |
| 12/18/1990 | CA1277926C Drying process using chabazite-type adsorbents |
| 12/18/1990 | CA1277925C Gas drying apparatus |
| 12/17/1990 | CA2019076A1 Catalytic treatment of carbonaceous particulates |
| 12/14/1990 | EP0410977A4 Economic recovery and utilization of boiler flue gas pollutants. |
| 12/14/1990 | CA2018690A1 Method for the preparation of crystalline and zeolitic aluminosilicates |
| 12/13/1990 | WO1990014889A1 Catalyst for heterogeneous catalysis consisting of an alloy of transition metals |
| 12/13/1990 | WO1990014888A1 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof |
| 12/13/1990 | WO1990014887A1 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof |
| 12/13/1990 | WO1990014879A1 Apparatus for distributing liquid in gas-liquid contact apparatus, and method for making it |
| 12/13/1990 | DE3918429A1 Successive active carbon walls - continuously remove solvent from air with desorption from opposite face |
| 12/12/1990 | EP0402142A1 Process for removing NOx from exhaust gas using electric discharge |
| 12/12/1990 | EP0402122A2 Method for treating exhaust gas |
| 12/12/1990 | EP0401789A1 Selective removal of hydrogen sulfide over a zinc oxide and diatomite absorbing composition |
| 12/12/1990 | EP0401788A1 Selective removal of hydrogen sulfide over a nickel-promoted absorbing composition |
| 12/12/1990 | EP0401646A1 Metallic core member for catalytic converter and catalytic converter containing same |