| 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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| 03/03/1992 | US5092254 Injection of additive into turbulent reaction zone; reduced dew point; corrosion resistance; air pollution control |
| 03/03/1992 | US5092135 Air conditioning system |
| 03/03/1992 | US5092008 Absorbent sheet like mat |
| 03/03/1992 | CA1296701C Sulphur compounds removal |
| 03/03/1992 | CA1296654C Process for ultra-drying of a gas |
| 03/03/1992 | CA1296508C Removal of water vapor diluent after regeneration of metal oxide absorbent to reduce recycle stream |
| 03/01/1992 | WO1992004276A1 Nitrogen atmospheres |
| 03/01/1992 | WO1992004122A1 Process and device for cleaning waste gases |
| 03/01/1992 | WO1992004106A1 Preparation of three-way catalysts with highly dispersed ceria |
| 03/01/1992 | WO1992004105A1 Method for removal of nitrogen oxides from exhaust gases |
| 03/01/1992 | WO1992003217A1 Membranes having selective permeability |
| 03/01/1992 | CA2090012A1 Preparation of three-way catalysts with highly dispersed ceria |
| 03/01/1992 | CA2088485A1 Membranes having selective permeability |
| 03/01/1992 | CA2087599A1 Nitrogen atmospheres |
| 03/01/1992 | CA2072604A1 Process for purification of off-gases from nitrogen oxides |
| 03/01/1992 | CA2067388A1 Process and device for cleaning exhaust gases |
| 03/01/1992 | CA2024413A1 Process for obtaining an hypoxic gas mixture and apparatus for implementation of this process |
| 03/01/1992 | CA2024348A1 Liquid membrane process for separating gases |
| 02/27/1992 | DE4125538A1 Helium extn. from gas contg. hydrogen by pressure swing adsorption - and catalytic removal of hydrogen avoiding use of cryogenic temp. |
| 02/27/1992 | DE4027272C1 Chemisorption filter, esp. for air conditioning systems - includes foamed porous ceramic layer impregnated with alkali, dust capturing prefilter layer and active carbon layer |
| 02/27/1992 | DE4027220A1 Biological breakdown of hydrogen sulphide in gas |
| 02/27/1992 | DE4026768A1 Respiration mask - is coated with mixed catalyst destroying ozone in air |
| 02/27/1992 | DE4026733A1 Verfahren zur reinigung eines oxidationsabgases A method for cleaning an oxidation exhaust gas |
| 02/27/1992 | DE4026732A1 Verfahren zur reinigung eines oxidationsabgases mit energierueckgewinnung A method for cleaning an oxidation gas with energy reclamation |
| 02/26/1992 | EP0472488A1 Procedure and device for the recovery of hydrocarbons from evaporation emissions, specially in automobiles |
| 02/26/1992 | EP0472249A2 Process and apparatus for biological degradation of hydrogen sulphide |
| 02/26/1992 | EP0472014A1 Process for preparing catalysts |
| 02/26/1992 | EP0471921A1 Hollow fiber membrane fluid separation device adapted for boreside feed which contains multiple concentric stages |
| 02/26/1992 | EP0471716A1 Multi-stage vortex reactor. |
| 02/26/1992 | EP0239612B1 Drain manifold for air data sensor |
| 02/26/1992 | CN1058920A Improved air spration pressure swing adsorption process |
| 02/26/1992 | CN1058919A Dust collector with desulfurization and deodorization functions |
| 02/25/1992 | WO1992003214A1 Process for purifying an oxidation waste gas with recovery of energy |
| 02/25/1992 | WO1992003213A1 Process for purifying an oxidation waste gas |
| 02/25/1992 | US5091358 Impregnating support with aqueous silver compound solution, reacting with alkali metal compound to form insoluble silver compound, adding carbon dioxide sorption promoter |
| 02/25/1992 | US5090973 Psa employing high purity purging |
| 02/25/1992 | CA2090114A1 Process for purifying an oxidation waste gas |
| 02/25/1992 | CA2090113A1 Process for purifying an oxidation waste gas with recovery of energy |
| 02/25/1992 | CA2040732A1 Hollow fiber membrane fluid separation device adapted for boreside feed which contains multiple concentric stages |
| 02/25/1992 | CA1296483C Use of membranes for ethylene recovery in polymerization processes |
| 02/25/1992 | CA1296315C Metallic honeycomb body, especially a catalyst carrier body havinga supporting wall and a method for producing the same |
| 02/25/1992 | CA1296264C Fluid separation module |
| 02/25/1992 | CA1296161C Process of desulfurizing gases |
| 02/25/1992 | CA1296160C Removing h s and co_ from a gas mixture containing h s and co_ |
| 02/25/1992 | CA1296159C Contacting gas and liquid |
| 02/24/1992 | CA2048263A1 Process for helium purification |
| 02/24/1992 | CA2023848A1 Carbon dioxide production from non-conventional low concentration feed sources |
| 02/23/1992 | WO1992003205A1 Method and device for cleaning |
| 02/23/1992 | CA2066753A1 Cleaning method and cleaning apparatus |
| 02/20/1992 | WO1992002717A1 Honeycomb body with channels having different cross-sectional dimensions, in particular catalyzer bearing body |
| 02/20/1992 | WO1992002714A1 Electrically heated honeycomb body, in particular a catalytic converter body, with internal support structures |
| 02/20/1992 | WO1992002290A1 Method and apparatus for reducing the contents of nitrogen oxides in combustion effluent gas |
| 02/20/1992 | WO1992002289A1 Gas-solide contacting method |
| 02/20/1992 | DE4120175A1 Cleaning system for air contg. organic material |
| 02/20/1992 | DE4026201A1 Treatment of flue gas |
| 02/20/1992 | DE4026071A1 Verfahren und anordnung zum reinigen von kohlenstoffhaltigem adsorptionsmittel Method and arrangement for cleaning of carbonaceous adsorbents |
| 02/20/1992 | DE4025589A1 Noxious fume-eliminating container - with permeable walls and granular active carbon filling for air purifiers in refrigerators |
| 02/20/1992 | DE4012397C1 Halogen hydride removal - by adding ammonia to pyrolysis gas in an agitated bed of pyrolysis reactor |
| 02/19/1992 | EP0471593A2 Process for absorption of sulfur compounds from fluids using ethylene diamine derivatives |
| 02/19/1992 | EP0471592A2 Process for absorption of sulfur compounds from fluids using certain piperidines, piperazines, or anhydrides of monocarboxylic amino acids |
| 02/19/1992 | EP0471591A2 Process for absorption of sulfur compounds from fluids using heterocyclic compounds having at least one ring nitrogen atom |
| 02/19/1992 | EP0471467A1 Unitary filter medium to trap organic and inorganic chemical pollutants |
| 02/19/1992 | EP0471443A1 Method of manufaturing an active silica gel honeycomb adsorbing body usable in the atmosphere of 100% of relative humidity |
| 02/19/1992 | EP0471355A2 Ceramic hollow bodies and process of manufacturing the same |
| 02/19/1992 | EP0471278A1 Flue gas SOx/NOx removal process and its by-product utilisation |
| 02/19/1992 | EP0471213A2 Improved membrane/deoxo control method and system |
| 02/19/1992 | EP0471064A1 Method for producing oxygen by adsorption separation from air. |
| 02/19/1992 | EP0471050A1 High efficiency distributor for gas-liquid contact column and method of preparation and use |
| 02/19/1992 | EP0471033A1 Catalytic destruction of organohalogen compounds. |
| 02/18/1992 | US5089072 Method of protecting a catalytic converter block with a fibrous material packing |
| 02/18/1992 | US5089048 Process for helium enrichment |
| 02/18/1992 | US5089036 Air scrubber for organic solvent removal |
| 02/18/1992 | US5089035 Dehumidifier |
| 02/18/1992 | US5089034 Adsorption, desorption; multizonal; low temperature processing removing water and carbon dioxide |
| 02/18/1992 | US5089033 Involving a condensation step and a membrane condensation step |
| 02/18/1992 | CA1295986C Stabilized chelating agents for removing hydrogen sulfide |
| 02/18/1992 | CA1295816C Process, an apparatus and a chemical absorption filter for purifying inhaled air |
| 02/18/1992 | CA1295814C Method of purifying flue or exhaust gases |
| 02/18/1992 | CA1295813C Reduction of nitrogen oxides |
| 02/18/1992 | CA1295812C Method for removing and using nitrogen oxides from fumes |
| 02/18/1992 | CA1295811C Process for removing no- and so- from a gaseous mixture |
| 02/18/1992 | CA1295810C Removal of co- and/or h-s from gases |
| 02/17/1992 | CA2049244A1 Process for absorption of sulfur compounds from fluids using heterocyclic compounds having at least one ring nitrogen atom |
| 02/17/1992 | CA2049152A1 Process for absorption of sulfur compounds from fluids using ethylene diamine derivatives |
| 02/16/1992 | CA2049200A1 Oxygen-separating porous membranes |
| 02/13/1992 | DE4026104C1 Nitrogen oxide(s) removal from waste gases - by using and carbon-contg. catalyst treated with e.g. hydrochloric acid |
| 02/13/1992 | DE4025565A1 Controlled IC exhaust gas buffer and recycle system - improving cold start=up efficiency of catalytic converters using an engine management device |
| 02/13/1992 | DE4025471A1 Verfahren zur schwefelrueckgewinnung aus einem h(pfeil abwaerts)2(pfeil abwaerts)s-haltigen gasstrom unter hohem druck Method for schwefelrueckgewinnung from a h (down arrow) 2 (down arrow) s containing gas stream under high pressure |
| 02/13/1992 | DE4025434A1 Wabenkoerper mit querschnittsbereichen unterschiedlicher kanalgroessen, insbesondere katalysator-traegerkoerper Wabenkoerper with cross-sectional areas of different kanalgroessen, in particular catalyst-traegerkoerper |
| 02/13/1992 | DE4025052A1 Sampling flue gas stream, esp. for sulphur di:oxide determn. - involves ammonia removal using nitrogen oxide(s) removing catalyst |
| 02/12/1992 | EP0470936A1 Removal of impurities from a hydride gas |
| 02/12/1992 | EP0470822A1 Hydrogen-permeable composite metal membrane |
| 02/12/1992 | EP0470728A1 Methods for lowering the nitrogen oxides content of exhaust gases |
| 02/12/1992 | EP0470670A1 Removing H2S from a sour gaseous stream |
| 02/12/1992 | EP0470659A1 Process for separating dust and organic compounds from flue gases |
| 02/12/1992 | EP0470653A1 Monolithic catalytic converter |
| 02/12/1992 | EP0470518A1 Device for carrying out photochemical reactions |
| 02/12/1992 | EP0470468A1 Process for the biological cleaning of exhaust air |
| 02/12/1992 | EP0470377A2 Diaphragm for gas-liquid contact, gas-liquid contact apparatus and process for producing liquid containing gas dissolved therein |
| 02/12/1992 | EP0470334A1 Arsenic resistant mixed oxides catalyst and method for its preparation |