| 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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| 01/04/1994 | US5275742 Treating of water with ozone and separation |
| 01/04/1994 | US5275732 Water treatment |
| 01/04/1994 | US5275642 Molecular sieve for oxygen concentrator |
| 01/04/1994 | US5275640 Operating absorbers alternately |
| 01/04/1994 | US5275233 Apparatus for removing moisture from a hot compressed gas |
| 01/04/1994 | US5275230 Regenerative preheater and method for operating the same |
| 01/04/1994 | CA2029437C Apparatus for treating waste gas |
| 01/04/1994 | CA1325709C Method for baghouse brown plume pollution control |
| 12/31/1993 | CA2072800A1 Process for thermal conversion of hydrogen sulfide to elemental sulfur |
| 12/29/1993 | EP0575945A2 Composite porous carbonaceous membranes |
| 12/29/1993 | EP0575591A1 Method for producing a gas having a substantial oxygen content |
| 12/29/1993 | EP0575540A1 Reduction of sulfur emissions from coal-fired boilers |
| 12/29/1993 | EP0526552B1 Process and device for removing particles from exhaust gases |
| 12/29/1993 | EP0524169B1 Charge/purge control system for air dryer having limited charge time |
| 12/29/1993 | CN1079942A Deoxidization method and apparatus based on hydrogen desoxydation principle |
| 12/28/1993 | US5273949 Silica-stabilized alumina |
| 12/28/1993 | US5273734 Forming sulfur and a ferrous chelate by adding a ferric chelate solution to a sour gaseous stream; a 2,6-dicarboxypyridine ligand |
| 12/28/1993 | US5273727 Flue gas purification and production of dry ammonium bisulfites and bisulfates |
| 12/28/1993 | US5273723 Having a platinum catalytic reactor in the exhaust tract to decompose oxidized resist and convert ozone to oxygen; antideposit agent |
| 12/28/1993 | US5273679 Stabilizers for compositions for acid gas absorbent |
| 12/28/1993 | US5273628 Using a ceramic membrane having high ambipolar conductivity and a bismuth-containing solid solution of homogeneous microstructure |
| 12/28/1993 | US5273572 Process for removing an organic compound from water |
| 12/28/1993 | US5272874 Exhaust treatment system |
| 12/28/1993 | US5272867 Method and plant for reducing the nitrogen oxide emissions of a gas turbine |
| 12/28/1993 | CA1325607C Filter apparatus |
| 12/26/1993 | CA2099202A1 Material treatment method and apparatus |
| 12/23/1993 | WO1993025806A1 Exhaust emission control system for internal combustion engine |
| 12/23/1993 | WO1993025805A1 Exhaust emission control system for internal combustion engine |
| 12/23/1993 | WO1993025486A1 Industrial furnace and method of operating the same |
| 12/23/1993 | WO1993025483A1 Treatment installation and method for treating water and/or gases |
| 12/23/1993 | WO1993025297A1 Depleted oxygen gas stripping and carbon adsorption btex abatement system |
| 12/23/1993 | WO1993016778A3 Hollow fiber filter cleaning system and more particularly to the control of emissions from solvent cleaning equipment |
| 12/23/1993 | DE4227416C1 Hydrocarbon esp. gasoline fumes recovery from air - involves condensation using liq. coolant prior to adsorption |
| 12/23/1993 | DE4220386A1 Industrial gaseous effluent adsorbed by rotating active carbon@ bed sub-divided into compartments - with synchronous push rotators and flaps exposing the carbon@ to fluid media in required sequence |
| 12/23/1993 | DE4219753A1 Re-heating clean gases downstream from sulphur scrubber - comprises heating clean gases by drawing heat from initial raw gas which is pre-cooled |
| 12/23/1993 | CA2137802A1 Treatment installation and method for treating water and /or gases |
| 12/22/1993 | EP0575294A1 Process for preparing-hydrolytically stable trivalent phosphorus compounds and their use as stabilisators for thermoplastic materials |
| 12/22/1993 | EP0575245A1 Apparatus for treating a gas by contacting with solid materials |
| 12/22/1993 | EP0575011A1 Device for biological purification of a gas |
| 12/22/1993 | EP0574705A1 Process for removing dioxins |
| 12/22/1993 | EP0574675A1 Moving bed reactor installation |
| 12/22/1993 | EP0574633A1 Dry, sulfur-free, methane-enriched synthesis or fuel gas |
| 12/22/1993 | EP0574611A1 Method for conditioning flue gas |
| 12/22/1993 | EP0542797A4 Gas-solide contacting method |
| 12/22/1993 | CN2149957Y Filter for waste gas exhausting of automobile or locomotive |
| 12/22/1993 | CN1023192C Method for annihilating toxical waste and plasma chemical reactor |
| 12/21/1993 | US5272125 Method of making a washcoat mixture and catalyst for treatment of diesel exhaust |
| 12/21/1993 | US5271915 Method for processing nitrogen oxide gas |
| 12/21/1993 | US5271913 Denitration catalyst for high-temperature exhaust gas |
| 12/21/1993 | US5271907 High temperature regenerable hydrogen sulfide removal agents |
| 12/21/1993 | US5271906 Exhaust emission control apparatus using catalytic converter with hydrocarbon absorbent |
| 12/21/1993 | US5271873 Support of interspaced, opposed feed headers for FGD systems |
| 12/21/1993 | US5271846 Method for separating a liquid component from a solution containing two or more liquid components |
| 12/21/1993 | US5271842 Contaminant removal system and process |
| 12/21/1993 | US5271762 Apparatus and method for air drying with reduced oxygen enrichment |
| 12/21/1993 | US5271761 Substituted aluminosilicate compositions and process for preparing |
| 12/21/1993 | US5271557 Methods and systems for gas treatment |
| 12/21/1993 | US5271162 Process for the emission-free drying of a substance in a drying drum |
| 12/21/1993 | CA1325418C Catalyst for the selective reduction of nitric acid with ammonia |
| 12/21/1993 | CA1325401C Process and apparatus for reclaiming waste gas treating chemical |
| 12/21/1993 | CA1325373C Method of detecting trace amounts of condensible vapors from compressed gas |
| 12/21/1993 | CA1325363C Method to enhance removal of sulfur compounds by slag |
| 12/16/1993 | DE4216772A1 Pre-purified gas or waste gas denitrification - by oxidising nitric oxide to nitrogen di:oxide or nitric acid with hydrogen peroxide and absorption on calcium hydroxide powder, avoiding di:nitrogen oxide formation |
| 12/15/1993 | EP0574285A1 Process and apparatus for the combined production of synthetic ammonia and pure hydrogen |
| 12/15/1993 | EP0574012A2 Exhaust gas catalytic purifier construction |
| 12/15/1993 | EP0573914A1 Recovery of elemental sulfur from gases |
| 12/15/1993 | EP0573834A1 Catalytic converter having a metallic monolith mounted by a heat-insulating mat of refractory ceramic fibers |
| 12/15/1993 | EP0573769A1 Desulphurisation process for gases formed during the granulation of blast furnace slag |
| 12/15/1993 | EP0573672A1 Exhaust emission control device in internal combustion engine |
| 12/15/1993 | EP0436696B1 Process for removing or reducing the quantity of gaseous hazardous substances |
| 12/15/1993 | EP0344283B1 Scrubber |
| 12/15/1993 | CN1079448A Process and installation for treating ramie boiled-off waste water by use of flue gas |
| 12/15/1993 | CN1079413A Decrease NOX in waste gas of car's motor |
| 12/15/1993 | CN1023104C Improved method and equipment for producing dry, high purity nitrogen |
| 12/15/1993 | CN1023103C Dry high purity nitrogen production process and system |
| 12/15/1993 | CN1023075C Process for manufacturing hydrated cured products of lime-gypsum-coal ash mixture |
| 12/14/1993 | US5270279 Production process of formed activated coke for SOx and NOx removal having high NOx-removing ability |
| 12/14/1993 | US5270277 Vanadium oxide-molybdenum oxide |
| 12/14/1993 | US5270026 Sulfur dioxide scrubbing process producing purified magnesium hydroxide |
| 12/14/1993 | US5270025 Methods for controlling N2 O emissions and for the reduction of NO.sub.x emissions in combustion systems while controlling N2 O emissions |
| 12/14/1993 | US5270024 Process for reducing nitrogen oxides from exhaust gas |
| 12/14/1993 | US5270015 Apparatus for removing sulfur from sulfur containing gases |
| 12/14/1993 | US5269967 Process for mitigating chemical aerosol clouds |
| 12/14/1993 | US5269929 Sulfate reducing bacteria and anaerobic heterotroph |
| 12/14/1993 | US5269892 Pyrolytic carbon bed |
| 12/14/1993 | US5269837 Evaporation loss control device |
| 12/14/1993 | US5269834 Process for removal of inert gases from liquid chlorine and system therefor |
| 12/14/1993 | US5269833 Process for cleaning a stream of crude gas or waste gas charged with hydrocarbon vapors resulting in recovery of the hydrocarbons |
| 12/14/1993 | US5269822 Process for recovering oxygen from gaseous mixtures containing water or carbon dioxide which process employs barium-containing ion transport membranes |
| 12/14/1993 | US5269294 Face mask impregnated with odor reducing molecular sieve material |
| 12/14/1993 | US5269155 Process and installation for the separation of a mixture of two gaseous components |
| 12/14/1993 | US5269140 Exhaust gas purifier for methanol-fueled engines |
| 12/14/1993 | CA1325182C Pressure swing adsorption process |
| 12/09/1993 | WO1993024421A1 Porous amorphous silica-alumina refractory oxides, their preparation and use as separation membranes |
| 12/09/1993 | WO1993024416A1 Process for removing sulphur compounds from water |
| 12/09/1993 | WO1993024229A1 Foraminous sheets for use in catalysis |
| 12/09/1993 | WO1993024223A1 Catalist composition and a method for its preparation |
| 12/09/1993 | WO1993024207A1 Device for treating exhaust gas |
| 12/09/1993 | WO1993024206A1 Process for removing an organic compound from water |
| 12/09/1993 | WO1993024205A1 Biofiltration of gases |