| 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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| 11/01/1989 | CN1036804A Process for recovery of alkanolamines from their heat-stable salts formed in alkanolamine sorbent solutions |
| 11/01/1989 | CN1036709A Vehicle exhaust gas systems |
| 10/31/1989 | US4877743 Monitoring reaction of nitrous oxide to form nitrogen |
| 10/31/1989 | US4877598 Continuous process for the dry slaking of lime |
| 10/31/1989 | US4877592 Two stage catalyst bed |
| 10/31/1989 | US4877591 Process for the reduction of nitrogen oxides in an effluent using sugar |
| 10/31/1989 | US4877590 Process for nitrogen oxides reduction with minimization of the production of other pollutants |
| 10/31/1989 | US4877533 Pervaporation; membrane with active layer of polyunsaturated acid or salt |
| 10/31/1989 | US4877531 Process for treating various refuse materials, particularly smoke, garbage and sewage |
| 10/31/1989 | US4877429 Valve device for P.S.A. or R.P.S.A. systems |
| 10/31/1989 | US4877426 Method and apparatus for unloading vapor adsorbers |
| 10/31/1989 | US4877422 Maintains dielectric properties |
| 10/31/1989 | US4877421 Heat treatment to remove impurities |
| 10/31/1989 | CA1262536A1 Enhanced bulk porosity of polymer structures via plasma technology |
| 10/25/1989 | EP0338967A1 Apparatus for treating slurry by gas-liquid contact method |
| 10/25/1989 | EP0338451A2 Process and plant for purifying waste gases from aluminium melting processes |
| 10/25/1989 | EP0338321A1 Waste air purification process |
| 10/25/1989 | EP0338103A1 Process for diminishing harmful emissions when operating coal combustion plants |
| 10/25/1989 | EP0338074A1 Treatment of permeable membranes |
| 10/25/1989 | CN1036545A Composition and method for removal of hydrogen sulfide |
| 10/24/1989 | US4876288 Dimensionally stable macroporous skeleton of bonded coarse and fine grained components; purification |
| 10/24/1989 | US4876076 Limestone absorber forming calcium sulfite, oxidation to sulfate; air pollution control |
| 10/24/1989 | US4876075 Removal of H2 S from gas streams |
| 10/24/1989 | US4876025 Composition to absorb mercury |
| 10/24/1989 | US4875914 Gas & odor adsorbing unit |
| 10/24/1989 | US4875911 Apparatus for separating gaseous mixtures |
| 10/24/1989 | US4875910 Filter for removing cancer causing compounds from exhaust fumes |
| 10/24/1989 | US4875908 Separation with permselective membrane |
| 10/24/1989 | US4875520 Heat exchanger; desiccant particles bound to plastic strip |
| 10/24/1989 | US4875436 Waste heat recovery system |
| 10/24/1989 | CA1262438A1 Monolithic catalytic convertor mounting arrangement |
| 10/19/1989 | WO1989009933A1 PLANAR POLAROGRAPHIC PROBE FOR DETERMINING THE lambda VALUE OF GASEOUS MIXTURES |
| 10/19/1989 | WO1989009560A1 Sheet type mat |
| 10/19/1989 | DE3910874A1 Process for the preparation of a gas adsorbent |
| 10/19/1989 | DE3818255C1 Process for the desulphurisation of flue gas and reactor usable for this |
| 10/19/1989 | DE3811758A1 Device for separating off pollutants from the exhaust air of carpet production plants |
| 10/19/1989 | DE3811598A1 Exhaust gas purification method and apparatus for carrying it out |
| 10/19/1989 | DE3811588A1 Process and apparatus for the thermal-catalytic exhaust air purification of solvent-containing exhaust air |
| 10/18/1989 | EP0337910A1 Process for reducing the content of non-condensables elements, which are present in fumes containing condensables and which are soluble in the condensable elements |
| 10/18/1989 | EP0337809A2 Catalyst for purifying exhaust gas and method for production thereof |
| 10/18/1989 | EP0337730A1 Heat resistant noble metal catalyst and method of producing the same |
| 10/18/1989 | EP0337515A2 Method and apparatus for controlling the injection amount of ammonia for denitration of exhaust gas |
| 10/18/1989 | EP0337446A2 Oxidation of carbon monoxide and catalyst therefor |
| 10/18/1989 | EP0337150A1 Structured column packing with liquid holdup |
| 10/18/1989 | EP0337143A2 A method of catalytic combustion of organic compounds and a catalytic burner for combustion of organic compounds |
| 10/18/1989 | EP0337076A1 Cyclic separation of oxygen from air using molten salts |
| 10/18/1989 | EP0337073A2 Process for the removal of nitrogen oxide from a flue gas stream and furnace with elements for performing the process |
| 10/18/1989 | EP0337001A1 Polyimide gas separation membranes |
| 10/18/1989 | EP0337000A2 Reactive posttreatment for gas separation membranes |
| 10/18/1989 | EP0336999A2 Reactive posttreatment for gas separation membranes |
| 10/18/1989 | EP0243368B1 Method for reducing emissions from industrial exhaust gases and industrial discharge air |
| 10/18/1989 | CN1036338A Selective adsorption of co2 on zeolites |
| 10/18/1989 | CN1036337A Process for reduction of nitrogen oxides in effluent using sugar |
| 10/18/1989 | CN1036336A Integrated process for removal of sulfur compounds from fluid streams |
| 10/18/1989 | CN1005459B Improved column packing |
| 10/18/1989 | CN1005458B Enhanced pressure swing adsorption processing |
| 10/17/1989 | US4874591 Process for the purification of waste gases containing hydrochloric acid and sulphur dioxide |
| 10/17/1989 | US4874590 Using molecular sieves |
| 10/17/1989 | US4874589 Washing; pressurized aeration; oxidation |
| 10/17/1989 | US4874587 Vapor phase decomposing organic compounds with water |
| 10/17/1989 | US4874586 Multilayer tubular porous walls |
| 10/17/1989 | US4874585 Economic recovery and utilization of boiler flue gas pollutants |
| 10/17/1989 | US4874530 Method for treating photographic processing waste solution |
| 10/17/1989 | US4874525 Purification of fluid streams containing mercury |
| 10/17/1989 | US4874524 Separation of adsorbed components by variable temperature desorption |
| 10/17/1989 | US4874408 Liquid drain assembly |
| 10/17/1989 | US4874405 Coupling fluid separation membrane elements |
| 10/17/1989 | US4874403 Absorption, depressurization |
| 10/17/1989 | US4874400 Using rotary atomizing disks to spray exhaust gas streams |
| 10/17/1989 | US4874133 Gas supply and distribution center |
| 10/17/1989 | US4873835 Process for the simultaneous exchange of heat and matter through a porous wall |
| 10/12/1989 | DE3905415A1 Process for treating exhaust gases |
| 10/12/1989 | DE3811168A1 Method for controlling regeneration of multilayer adsorber beds |
| 10/12/1989 | DE3810646A1 Apparatus and process for recovering solvents |
| 10/12/1989 | DE3810113A1 Process for providing the gases required for operating high-temperature fuel cells |
| 10/11/1989 | EP0336882A1 Catalyst filter, method for manufacturing a catalyst filter and comprehensive method for treating a combustion exhaust gas using a catalyst filter |
| 10/11/1989 | EP0336535A1 Gas separation by composite solvent-swollen membranes |
| 10/11/1989 | EP0336119A2 Process for the decontamination of oxygen containing gases, especially of waste gases |
| 10/11/1989 | EP0336106A1 Process for manufacturing a carrier for a catalytic reactor |
| 10/11/1989 | CN1005384B Direct absorption purifying method of non-metal compound |
| 10/11/1989 | CN1005381B Separation co2 from other gas of mixture |
| 10/10/1989 | US4873066 Low temperature process for the reduction of nitrgen oxides in an effluent |
| 10/10/1989 | US4873065 Flue gas purification process |
| 10/10/1989 | US4872891 Desiccant system |
| 10/10/1989 | CA1262247A1 Catalyst for reduction of so.sub.x emissions from fcc units |
| 10/05/1989 | WO1989009366A1 Combustion apparatus |
| 10/05/1989 | WO1989009184A1 Method for baghouse brown plume pollution control |
| 10/05/1989 | WO1989009183A1 SOx/NOx POLLUTION CONTROL COMPOSITION AND METHOD FOR ESP BROWN PLUME CONTROL |
| 10/05/1989 | DE3904500A1 Process for removing sulphur oxides from exhaust gases |
| 10/05/1989 | DE3843150A1 Apparatus for isolating hydrocarbons from highly concentrated gas streams |
| 10/05/1989 | DE3810705A1 Multistage process for removing solvents contained in a gas |
| 10/05/1989 | DE3809903A1 Arrangement for controlling small air purification units |
| 10/05/1989 | DE3809891A1 Process for cleaning sludge-fouled packings in scrubber columns |
| 10/05/1989 | DE3809890A1 Process for cleaning fouled packings in scrubber columns |
| 10/05/1989 | DE3809774A1 Process for separating off soot from exhaust gases with desulphurisation and catalysis |
| 10/04/1989 | EP0335847A1 Catalyst for purifying exhaust gases and preparation and use thereof |
| 10/04/1989 | EP0335792A1 Process for the destruction of hydrides in an exhaust gas, and catalyst for carrying it out |
| 10/04/1989 | EP0335746A2 System to mitigate the effect of an environmental release of a contaminant gas |
| 10/04/1989 | EP0335441A1 Process for the purification of flue gases |
| 10/04/1989 | EP0335418A2 Membrane process and system for nitrogen production |