| 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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| 05/20/1997 | CA2036006C Catalyst for the purification of the exhaust gases of internal combustion engines |
| 05/20/1997 | CA2027753C Deodorizing and cleaning compositions and method |
| 05/18/1997 | CA2190526A1 High adsorbing capacity material for gas effluent sewage treatment system |
| 05/18/1997 | CA2190330A1 Method for reducing formation of polychlorinated aromatic compounds during oxychlorination of c1-c3 hydrocarbons |
| 05/15/1997 | WO1997017722A1 Facility for treating objects in a process tank |
| 05/15/1997 | WO1997017534A1 Catalyst |
| 05/15/1997 | WO1997017532A1 Method and device for purifying exhaust gas of engine |
| 05/15/1997 | WO1997017483A1 Catalytic structures and method of manufacture |
| 05/15/1997 | WO1997017300A1 Process for removing ammonium |
| 05/15/1997 | WO1997017284A1 Method for oxidising h2s to sulphur |
| 05/15/1997 | WO1997017283A1 Method for removing virtually all the sulphur compounds h2s, so2, cos and/or cs2 from sulphur plant waste gases, and recovering such compounds as sulphur |
| 05/15/1997 | WO1997017127A1 A method of decomposing the oxides of nitrogen in flue gas |
| 05/15/1997 | WO1997017126A1 Apparatus for supplying dry air |
| 05/15/1997 | WO1997017125A1 Apparatus and methods for gas extraction |
| 05/15/1997 | WO1997017124A1 Rotating distributor assembly for fluid flow |
| 05/15/1997 | WO1997010882A3 Filter or catalytic-converter device |
| 05/15/1997 | WO1997010315A3 Fireproof cladding in the transfer line of a gasifier to the heat recovery boiler |
| 05/15/1997 | WO1997008287A3 Polyamino monosuccinic acid derivative degradable chelants, uses and compositions thereof |
| 05/15/1997 | DE19542270A1 Cleaning air from container washing unit |
| 05/15/1997 | DE19542065A1 Verfahren und Vorrichtung zum Reinigen von Verbrennungsabgasen aus Feuerungsanlagen Method and apparatus for cleaning combustion exhaust gases from combustion plants |
| 05/15/1997 | DE19542038A1 Katalysator Catalyst |
| 05/15/1997 | DE19542010A1 Composting box incorporates first box holding material at advanced stage of decomposition |
| 05/15/1997 | DE19542009A1 Biological washing unit for air from stables |
| 05/15/1997 | DE19541436A1 Anlage zur Behandlung von Gegenständen in einem Prozeßtank Plant for the treatment of objects in a process tank |
| 05/15/1997 | CA2237010A1 Catalytic structures and method of manufacture |
| 05/15/1997 | CA2234116A1 Device for treating objects in a processing tank |
| 05/14/1997 | EP0773354A1 Device for purifying exhaust gas of engine |
| 05/14/1997 | EP0773192A1 Selenium containing sewage treatment process and apparatus |
| 05/14/1997 | EP0773188A2 Magnetic field type oxygen enriched air producing apparatus |
| 05/14/1997 | EP0773062A1 Material having ultrafine gold particles immobilized thereon and method for production thereof |
| 05/14/1997 | EP0773057A1 Exhaust gas purifying catalyst |
| 05/14/1997 | EP0773056A1 Method for purifying an exhaust gas from a diesel engine |
| 05/14/1997 | EP0772569A1 Catalytic desulphurization process for a gas containing h 2?s and so 2? compounds, and catalyst for implementing said process |
| 05/14/1997 | EP0772487A1 Process and filter for removing organic substances and ozone from gases |
| 05/14/1997 | EP0772486A1 Method for the removal of non-metal and metalloid hydrides |
| 05/14/1997 | EP0772485A1 Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 05/14/1997 | EP0648313B1 Low nox cogeneration process and system |
| 05/14/1997 | EP0558501B1 Catalytic reactor and method of controlling emissions |
| 05/14/1997 | CN1149504A Process for absorption nitrogen from gas mixture by changing pressure absorption of zeolite |
| 05/14/1997 | CN1034852C Dewatering pre-treating method of freezing method for natural gas of oil gas field |
| 05/13/1997 | US5628977 Process for the desulfurization of a crude gas containing H2 S |
| 05/13/1997 | US5628975 Flow-through honeycomb carrier for catalytic material |
| 05/13/1997 | US5628968 Apparatus for purifying pollutant-containing waste air from industrial plants by regenerative afterburning |
| 05/13/1997 | US5628942 Process for the preparation of asymmetric TPX porous membranes for gas separation |
| 05/13/1997 | US5628819 Method and apparatus for continuous adsorption of adsorbable contaminates and adsorber regeneration |
| 05/13/1997 | US5628186 Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas |
| 05/09/1997 | WO1997016505A1 Propane recovery process |
| 05/09/1997 | WO1997016399A1 Method and apparatus for concentrating methane in anaerobic digestive fermentation gas |
| 05/09/1997 | WO1997016393A1 Ecologically compatible water-based mullite sols, mullite compositions and methods of making the same |
| 05/09/1997 | WO1997016377A1 Composition containing at least sodium bicarbonate, preparation method therefor and uses thereof |
| 05/09/1997 | WO1997016376A1 Method for processing flue gases containing sulphur oxides |
| 05/09/1997 | WO1997016237A1 Method and apparatus for separating liquid mixtures using intermittent heating |
| 05/09/1997 | WO1997016236A1 Method for processing flue gases using moistened sodium carbonate and/or bicarbonate |
| 05/09/1997 | WO1997016233A1 Multi-layer separation units |
| 05/09/1997 | WO1997013055A3 Process and device for metering the introduction of a reducing agent into the waste gas or air stream of a combustion unit |
| 05/09/1997 | WO1997012373A3 Method and apparatus for laser separation of molecular compounds |
| 05/09/1997 | WO1997012129A3 Process and device for reacting a pollutant in an exhaust gas on a catalyst |
| 05/09/1997 | CA2236477A1 Ecologically compatible water-based mullite sols, mullite compositions and methods of making the same |
| 05/07/1997 | EP0771987A1 Method of lining pipes |
| 05/07/1997 | EP0771887A1 Gas recovery unit |
| 05/07/1997 | EP0771759A1 Process for the electrolytic separation of oxygen from its mixtures and equipment for implementing such process |
| 05/07/1997 | EP0771584A1 Heat-resistant catalyst support |
| 05/07/1997 | EP0771583A1 Single bed pressure swing adsorption process for recovery of oxygen from air |
| 05/07/1997 | EP0771579A1 Method for decomposing halide-containing gas |
| 05/07/1997 | EP0734286A4 Gel-based vapor extractor and methods |
| 05/07/1997 | EP0663850B1 Method for removing hydrogen sulphide from mixture gas containing hydrogen sulphide and excessive amounts of steam and ammonia |
| 05/07/1997 | DE19610444C1 Removing gaseous elemental mercury@ from crude gas |
| 05/07/1997 | DE19540876A1 Mehrschichtige Separationseinheiten Multi-layer separation units |
| 05/07/1997 | CN1149333A Sanitizable slider diaphragm valve |
| 05/07/1997 | CN1148996A Process for producing pressurized oxygen by adsorption |
| 05/07/1997 | CN1034790C Burning catalyst for composite oxide and preparing process and application |
| 05/07/1997 | CN1034789C Metal composite oxide three-element purifying catalyst |
| 05/07/1997 | CN1034788C Process and apparatus for removal of sulfur from dust-containing flue gas |
| 05/06/1997 | US5627124 Oxidation of hydrocarbons and carbon monoxide for pollution control |
| 05/06/1997 | US5626914 Ceramic body with copper metal infiltration |
| 05/06/1997 | US5626826 Zirconium/cerium mixed oxide catalyst/catalyst support compositions having high/stable specific surfaces |
| 05/06/1997 | US5626820 Clean room air filtering |
| 05/06/1997 | US5626763 Adsorption and ion exchange using a bed of stratified porous granules |
| 05/06/1997 | US5626689 Subjecting feldspar to subatomspheric pressure conditions in a controlled environment |
| 05/06/1997 | US5626650 Bed of layered nanostructures |
| 05/06/1997 | US5626649 Volatile organic chemical tank ullage pressure reduction |
| 05/06/1997 | US5626033 Process for the recovery of perfluorinated compounds |
| 05/02/1997 | EP0770576A1 Process and installation for the production of hydrogen and energy |
| 05/02/1997 | EP0770421A1 Catalyst for removing nitrogen oxides |
| 05/02/1997 | EP0770420A2 Composition and method for acid gas treatment |
| 05/02/1997 | EP0770419A2 Isobaric moving bed continuous gas purification |
| 05/02/1997 | EP0769983A1 An in-situ crystallized zeolite containing composition (lai-isc) |
| 05/02/1997 | EP0705218B1 Method for separating chlorine from a mixture of gases |
| 05/02/1997 | EP0684870B1 Boreside feed hollow fiber membrane device |
| 05/02/1997 | EP0566748B1 Method of making metallic catalyst carrier |
| 05/02/1997 | EP0556368B1 Bulk-material reactor |
| 05/02/1997 | CA2189386A1 Process and apparatus for removing a contaminant from a gas |
| 05/02/1997 | CA2170953A1 A pipeline resin lining method involving a deodorization treatment |
| 05/01/1997 | WO1997015639A1 Process and retrofit unit for upgrading a natural gas plant |
| 05/01/1997 | WO1997015378A1 Biofilter cover |
| 04/30/1997 | DE19643674A1 Engine exhaust gas catalyser temp. detector |
| 04/30/1997 | DE19540045A1 Filter element for gases |
| 04/30/1997 | DE19539839A1 Adsorptively cleaning residual gases |
| 04/30/1997 | DE19539728A1 Internal combustion engine exhaust appts. |
| 04/30/1997 | CN1148872A Gas-permslective pneumatic pump and incubator using the same |