| 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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| 01/20/1994 | WO1994001204A1 Method and device for regulating the humidity of a gas flow and at the same time purifyng it of undesired acid or alkaline gasses |
| 01/20/1994 | WO1994001203A1 Process for removing carbon dioxide regeneratively from gas streams |
| 01/20/1994 | WO1994001202A1 Gas thermal treatment process and device, in particular thermal and/or catalytic afterburning of waste gas |
| 01/20/1994 | WO1994001201A1 Pollution control apparatus for industrial processes and the like |
| 01/20/1994 | WO1994001195A1 Flexible-walled adsorber |
| 01/20/1994 | DE4243759C1 Wet scrubbing of gas - by pre-scrubbing and then accelerating gas prior to cyclone sepn. of clean gas |
| 01/20/1994 | DE4223681A1 Filter recess for absorption of hydrocarbon material from air - uses polypropylene@ filter material in double cylinder driven by motor in housing |
| 01/20/1994 | DE4223648A1 Katalytische Abgasreinigungsvorrichtung Catalytic exhaust gas purification device |
| 01/20/1994 | CA2452549A1 Pollution control apparatus for industrial processes and the like |
| 01/20/1994 | CA2140128A1 Desulphurisation of waste gases |
| 01/20/1994 | CA2139634A1 Membrane |
| 01/20/1994 | CA2138983A1 Low nox cogeneration process and system |
| 01/19/1994 | EP0579290A2 Separation of gas mixtures including hydrogen |
| 01/19/1994 | EP0579289A2 Separation of gas mixtures |
| 01/19/1994 | EP0579234A1 Packing element |
| 01/19/1994 | EP0579105A1 Apparatus and method for removing carbon dioxide contained in exhaust gas |
| 01/19/1994 | EP0578863A1 Method of reducing nitrogen oxide content in gas |
| 01/19/1994 | EP0542805B1 Honeycomb body with channels having different cross-sectional dimensions, in particular catalyzer bearing body |
| 01/19/1994 | EP0541585B1 Electrically heated honeycomb body, in particular a catalytic converter body, with internal support structures |
| 01/19/1994 | EP0395740B1 Process for purifying aqueous buffer solutions |
| 01/19/1994 | EP0379591B1 Exhaust smoke purifier apparatus |
| 01/19/1994 | EP0357653B1 Feed inlet floor for mobile bed reactors |
| 01/19/1994 | CN2153408Y Bridge arch supporting device for dry absorption tower |
| 01/19/1994 | CN1080976A Apparatus for catalytic exhaust gas cleaning |
| 01/19/1994 | CN1023553C Method for purifying high temp. reducibility gas |
| 01/18/1994 | US5279997 Using a copper ion exchanged zeolite ZSM-5 |
| 01/18/1994 | US5279963 System for the decontamination of a contaminated gas |
| 01/18/1994 | US5279746 Process and apparatus for removing radon from water |
| 01/18/1994 | US5279742 Polytetrafluoroethylene fibril matrix embedded with absorptive articles |
| 01/18/1994 | US5279464 Comminuting metal containing and catalyst; separation |
| 01/18/1994 | US5279128 Dehumidifying apparatus with electronic refrigeration unit |
| 01/18/1994 | US5279108 Drivein alow pressure rotor of a gas turbine engine |
| 01/18/1994 | CA1326233C Hydrogen sulfide suppressing catalyst system using copper oxide |
| 01/18/1994 | CA1326232C Thermally stabilized catalysts containing alumina and methods of making the same |
| 01/18/1994 | CA1326231C Process for reducing emissions of sulfur oxides and composition useful in same |
| 01/13/1994 | DE4222379A1 Refuse treatment esp. domestic and industrial refuse - by 21-stage sieving, sorting, mixing size redn. drying and combustion for energy recovery from combustion and residual material calcination and recycling |
| 01/13/1994 | DE4216524A1 Multifunctional gas cleaning - within bed of solid, excited grains whose movement is controlled to maximise process efficiency |
| 01/12/1994 | EP0578629A1 Process for purification of a flue gas stream by a washing liquid |
| 01/12/1994 | EP0578401A1 FCC regeneration process and apparatus for reducing NOx |
| 01/12/1994 | EP0578371A1 A sorbing sheet and a sorbing laminate |
| 01/12/1994 | EP0578363A1 Method for operating dry-process, desulfurization apparatus |
| 01/12/1994 | EP0577879A1 Catalyst for purifying exhaust gas and method of purifying exhaust gas |
| 01/12/1994 | EP0577853A1 Denitration device for exhaust gases of internal combustion motors |
| 01/12/1994 | EP0577607A1 An active liquid distributor containing packed column. |
| 01/12/1994 | EP0458842B1 Apparatus and process for the elimination of atmospheric pollution |
| 01/12/1994 | EP0308497B1 High efficiency sensible and latent heat exchange media with selected transfer for a total energy recovery wheel |
| 01/12/1994 | EP0263183B1 NH3-Injection controller |
| 01/12/1994 | CN2152594Y Multi-effect dusting devulcanizer |
| 01/12/1994 | CN1080563A Plasma resolving harmful gas method and device under normal temp. and pressure |
| 01/12/1994 | CN1080562A Electronic automatic normal temp. drying box |
| 01/12/1994 | CN1080560A A method and an installation for cleaning the exhaust gas leaving a large diesel engine |
| 01/11/1994 | US5278123 Monolithic catalysts for converting sulfur compounds into SO2 |
| 01/11/1994 | US5278113 Catalytic body and process for producing the same |
| 01/11/1994 | US5278112 Chemically impregnated zeolite and method for chemically impregnating and coating zeolite |
| 01/11/1994 | US5277885 Improving carbon dioxide absorption by tert-alkanolamines |
| 01/11/1994 | US5277884 Solvents for the selective removal of H2 S from gases containing both H2 S and CO2 |
| 01/11/1994 | US5277877 Room air purifier |
| 01/11/1994 | US5277847 Method and apparatus for catalyst-downcomer-tray operation |
| 01/11/1994 | US5277837 Method and composition for treating flue or exhaust gases utilizing modified calcium hydroxide |
| 01/11/1994 | US5277822 Purification by anionic ion exchange resin |
| 01/11/1994 | US5277716 Method of controlling the solvent vapor concentration in an apparatus |
| 01/11/1994 | US5277707 Air stream solvent vapor remover |
| 01/11/1994 | US5277703 Applying electric voltage potential to charge airbourne particles, rotating shaft to plate out decay products, directing air flow |
| 01/11/1994 | US5277135 Controlling concentration of chemical treatment for flue gas reduction of the oxides of nitrogen |
| 01/11/1994 | CA2079415A1 Catalyst for purifying exhaust gas and method of purifying exhaust gas |
| 01/11/1994 | CA1325999C Exhaust gas treatment process using irradiation and apparatus for same |
| 01/06/1994 | WO1994000383A1 Dual impregnated activated carbon |
| 01/06/1994 | WO1994000382A1 Activated carbon by treatment of lignites with potassium and/or sodium hydroxide or salts and adsorption therewith |
| 01/06/1994 | WO1994000230A1 Novel absorbent sulphur oxide composition and use thereof |
| 01/06/1994 | WO1994000220A1 An arrangement for removing mercury vapour from air |
| 01/06/1994 | WO1994000180A1 Methods and devices for relaxing smooth muscle contractions |
| 01/06/1994 | CA2138376A1 Activated carbon by treatment of lignites with potassium and/or sodium hydroxide or salts and adsorption therewith |
| 01/05/1994 | EP0577543A1 Process and installation for purifying exhaust gases from a large diesel engine |
| 01/05/1994 | EP0577438A2 Exhaust gas cleaner and method of cleaning exhaust gas |
| 01/05/1994 | EP0577276A2 High strength elastomeric desiccant |
| 01/05/1994 | EP0577251A1 Deodorizer for refrigerator or the like |
| 01/05/1994 | EP0577226A1 Lignosulfonate-modified calcium hydroxide for SO2 control during furnace injection |
| 01/05/1994 | EP0577149A1 Method of purifying waste gases |
| 01/05/1994 | EP0577118A1 Bulk materials reactor with roof-shaped balk materials distributor at the lower part thereof and with adjustable outlet device |
| 01/05/1994 | EP0577117A2 Process for preparing a catalyst |
| 01/05/1994 | EP0577079A1 Simulated moving bed separation system |
| 01/05/1994 | EP0577026A2 Filtration method and filter device |
| 01/05/1994 | EP0576977A2 Process for cooling and cleaning of hot dust, dioxine and other toxines containing flue gases |
| 01/05/1994 | EP0576715A1 A method for purifying a stream of hydrogen isotopes from impurities |
| 01/05/1994 | EP0576494A1 Continuous chromatography. |
| 01/05/1994 | EP0508989B1 Device for the metered delivery of pourable solids |
| 01/05/1994 | DE4320629A1 Appts. for recovery of solvents from output air - involves membrane pervaporation as dividing layer, with air absorbed in viscous organic fluid |
| 01/05/1994 | DE4221451A1 Exhaust gas catalytic denitrification for quantitative nitrogen oxide removal - by adding aq. soln. of ammonia, urea, ammonium salt or guanidine cpd., cooling and passing over supported iron, manganese or copper cpd. and/or sulphate, for diesel and lean burn petrol engine |
| 01/05/1994 | DE4220988A1 Catalytic exhaust gas cleaning device - has gap-sealing composite sleeve preventing insulation blowouts |
| 01/05/1994 | DE4220950A1 Sepn. of impurities from gases produced on gasifying-combusting fossil fuel - by cooling and then contacting with clay minerals |
| 01/05/1994 | DE4218726A1 Natural gas purificn. before chlorination to chloromethane cpds. - by simultaneous desulphurisation, methanisation and cracking over two catalysts in single-zone reactor |
| 01/05/1994 | CN2151804Y Waste gas purifier |
| 01/05/1994 | CN2151803Y Temperature controller special for air dryer |
| 01/05/1994 | CN1080381A Method for-conditioning flue gas |
| 01/05/1994 | CN1080209A Deodorant drier and preparing process thereof |
| 01/04/1994 | US5276250 Process for decomposing polyhalogenated compounds |
| 01/04/1994 | US5276249 Metal exchanged aluminum silicates for oxidation of impurities |
| 01/04/1994 | US5275997 Oxidation catalysts of zirconia and yttria, calcia, magnesia or scandia with platinum metals |
| 01/04/1994 | US5275795 Method for purification of lean-burn engine exhaust gas |
| 01/04/1994 | US5275792 Method of removing NOx from NOx -containing gas |