| 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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| 06/10/1993 | WO1993010889A1 Spirally wound membrane device having three channels |
| 06/10/1993 | WO1993010886A1 Ceria-alumina oxidation catalyst and method of use |
| 06/10/1993 | WO1993010885A1 Oxidation catalyst and method of use |
| 06/10/1993 | WO1993010884A1 Method for reducing the sulphur dioxide content in the flue gas from a clinker production plant and apparatus for carrying out the method |
| 06/10/1993 | WO1993010883A1 Lean acid gas enrichment with selective hindered amines |
| 06/10/1993 | WO1993010882A1 Method for producing a gas having a substantial oxygen content |
| 06/10/1993 | CA2124441A1 Ceria-alumina oxidation catalyst and method of use |
| 06/10/1993 | CA2124439A1 Oxidation catalyst and method of use |
| 06/10/1993 | CA2124200A1 Spirally wound membrane device having three separate channels |
| 06/10/1993 | CA2121595A1 Process and composition for nox and sox reduction |
| 06/10/1993 | CA2101317A1 Method for producing a gas having a substantial oxygen content |
| 06/09/1993 | EP0545559A2 Separation of gas mixtures |
| 06/09/1993 | EP0545509A1 Catalyst, use of the same and process for hydrodehalogenation of organic halogenated compounds |
| 06/09/1993 | EP0545404A1 Catalyst and a method of preparing the catalyst |
| 06/09/1993 | EP0545296A1 Process for producing carbon dioxide clathrate |
| 06/09/1993 | EP0545214A2 Process for waste air purification from oil-mill plants |
| 06/09/1993 | EP0544892A1 Use of crystalline molecular sieves containing charged octahedral sites in cyclic desiccating processes. |
| 06/09/1993 | EP0308505B1 Method and device for flue gas treatment by irradiation with electron beams |
| 06/09/1993 | DE4214183A1 Exhaust gas treatment for IC (diesel) engine - has reducing catalyst for nitrogen oxide with ammonia addition, and downstream oxidative catalyst |
| 06/09/1993 | DE4212334C1 Burning fuel oil or natural gas - with pure oxygen@ to obtain heat with high efficiency without harmful emissions, with photo:synthetic conversion using bio:reactor |
| 06/09/1993 | DE4140058A1 Tubular membrane fluid separator construction - avoids leakages due to temp. induced dimensional chambers, and suitable for liquids and gases |
| 06/09/1993 | CN2135397Y Elements for ventilation insulating layer |
| 06/09/1993 | CN2135394Y Water absorption chamber |
| 06/09/1993 | CN2135393Y Ball shell ventilation insufating layer for packed tower |
| 06/09/1993 | CN1021122C Apparatus for treating gaseous effluents coming from manufacture of electronic components |
| 06/09/1993 | CN1021115C Polyalky leneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur |
| 06/08/1993 | US5217696 Combined lamp and indoor air purification apparatus |
| 06/08/1993 | US5217508 Waste gas treatment method and system |
| 06/08/1993 | US5217506 Hydrogen-permeable composite metal membrane and uses thereof |
| 06/08/1993 | US5217505 Pyrolyzed particles of polysulfonated cross-linked synthetic porous copolymer |
| 06/08/1993 | US5216966 Heat generating plant comprising desulfurization means utilizing regeneratable absorbents |
| 06/08/1993 | US5216898 Cooling apparatus |
| 06/08/1993 | CA1318907C Alkaline earth metal spinel/kaolin clays and processes for making and using same |
| 06/08/1993 | CA1318771C Process for removing hydrogen phosphide from waste air |
| 06/05/1993 | CA2084380A1 Counter-current flow hollow fiber permeator |
| 06/05/1993 | CA2084373A1 Process for purifying exhaust air from plant parts of oil mills |
| 06/03/1993 | DE4237995A1 Cleaning combustion waste gas by nitrogen and sulphur oxide(s) removal |
| 06/03/1993 | DE4139682A1 Reducing ammonia emission from animal and human sewage - by adding organic acid contg. material obtd. from silo biomasses |
| 06/03/1993 | DE4139291A1 Driving IC engine with exhaust driven turbocharger - intermittently adding extra fuel and/or air upstream of turbine with electrically-heated catalytic firing |
| 06/03/1993 | CA2083899A1 Method of and an apparatus for recovering sulphur dioxide from the chemical circulation of a sulphate pulp mill |
| 06/02/1993 | EP0544515A1 Process and apparatus for removing acid gas from a gas mixture |
| 06/02/1993 | EP0544480A1 Microwave and radio frequency sensitised oxidation |
| 06/02/1993 | EP0544282A1 Catalyst for purifying exhaust gas |
| 06/02/1993 | EP0544272A1 Solid state cyanocobaltate complexes |
| 06/02/1993 | EP0528896A4 Dehumidifier |
| 06/02/1993 | EP0465479B1 A method of reprocessing sewage sludge |
| 06/02/1993 | CN2134998Y Anti-pollution device for preparation of dipterex or acetochloral by dealcololization and distillation |
| 06/02/1993 | CN2134890Y Ring-edge sealed bubble-cap tower |
| 06/02/1993 | CN2134889Y Separated absorption tank |
| 06/02/1993 | CN1072612A Ozone eliminator |
| 06/02/1993 | CN1072611A Compressing oxygen |
| 06/02/1993 | CN1021020C Method and apparatus for treatment of waste gas containing dusts and chemical contaminants |
| 06/02/1993 | CN1021019C Filtering apparatus |
| 06/01/1993 | US5215953 Catalyst for the oxidation of sulfur dioxide and method for the production of the catalyst |
| 06/01/1993 | US5215737 Synthesis of mesoporous aluminosilicate |
| 06/01/1993 | US5215729 Composite metal membrane for hydrogen extraction |
| 06/01/1993 | US5215728 Absorbing by catalytic polyvalent metal redox solution, regenerating the reduced redox solution by oxidation |
| 06/01/1993 | US5215724 Stacks of porous plates spaced from each other to form channels for radial gas flow; internal combustion engines |
| 06/01/1993 | US5215672 Fine solids separation/classification; dewatering; mixing, thickening collecting |
| 06/01/1993 | US5215652 Mixing nonionic metallic platinum group metal complexes with feedstock stream, recycle stream and hydrogen stream, hydrogenation, depositing metal on catalyst |
| 06/01/1993 | US5215594 Process for cleaning surfaces of interior parts in two-stage flue gas desulfurization plants |
| 06/01/1993 | US5215561 Moisture collection apparatus |
| 06/01/1993 | US5215557 Dry scrubber with integral particulate collection device |
| 06/01/1993 | US5215555 Method and apparatus for adsorbing moisture from gases, especially air |
| 06/01/1993 | US5214932 Hermetically sealed electric driven gas compressor - expander for refrigeration |
| 06/01/1993 | CA1318584C Gas-liquid contacting apparatus |
| 05/27/1993 | WO1993011395A1 Combined adjustable-flow rate nitrogen and oxygen production method |
| 05/27/1993 | WO1993010039A1 Conversion of hydrogen sulfide to sulfur and hydrogen |
| 05/27/1993 | WO1993009871A1 Method of making metallic catalyst carrier |
| 05/27/1993 | DE4239615A1 Gas processing plant control system - controls cyclically operated adsorption dryer, esp. for compressed air drying |
| 05/27/1993 | DE4138851A1 Catalyst for e.g. IC engine gaseous emissions purificn. - comprises catalysts on carriers coated on foils which form smooth, corrugated grooved or offset channels |
| 05/27/1993 | CA2101258A1 Combined adjustable-flow rate nitrogen and oxygen production method |
| 05/26/1993 | EP0543802A2 Process for preparing a cerium oxide with high specific surface area |
| 05/26/1993 | EP0543716A1 Catalysts for diesel motors and diesel motor with a filter containing such a catalyst |
| 05/26/1993 | EP0543710A1 Structure of the catalytic support of the exhaust of a vehicle engine |
| 05/26/1993 | EP0543530A2 Apparatus and methods for remediating materials contaminated with hydrocarbons |
| 05/26/1993 | EP0543134A1 Process and plant for recovery of sterilant gas |
| 05/26/1993 | EP0542797A1 Gas-solide contacting method. |
| 05/26/1993 | EP0491931A4 Composite clay materials for removal of so x? from gas streams |
| 05/26/1993 | CN2134611Y Cooking waste gas filter |
| 05/26/1993 | CN1072490A Condensate tank of dehumidifier |
| 05/26/1993 | CN1072469A Process and apparatus for conditioning ozone gas recycle stream in ozone pulp bleaching |
| 05/26/1993 | CN1020888C Process for removing sulfides |
| 05/26/1993 | CN1020884C Improved process and system for production of dry high purity nitrogen |
| 05/26/1993 | CA2083684A1 Process and apparatus for removing acid gas from a gaseous composition |
| 05/26/1993 | CA2083209A1 Solid state cyanocobaltate complexes |
| 05/25/1993 | US5214020 Backwash type particulate filter |
| 05/25/1993 | US5214019 Enhancing carbon dioxide sorption rates using hygroscopic additives |
| 05/25/1993 | US5214014 Oxidation destruction with ozone; carrier and metal, metal oxide and/or metal sulfate |
| 05/25/1993 | US5213782 Clear liquor scrubbing magnesium-enhanced lime flue gas desulfurization process |
| 05/25/1993 | US5213781 Method of cleaning nitrogen oxide containing exhaust gas |
| 05/25/1993 | US5213780 Method for nitrogen oxide reduction and flue gas reheating |
| 05/25/1993 | US5213778 Method for treating combustion exhaust gases |
| 05/25/1993 | US5213767 Dry exhaust gas conditioning |
| 05/25/1993 | US5213719 Gas-liquid contacting device |
| 05/25/1993 | US5213594 Controlling solvent vapors in dry cleaning apparatus |
| 05/25/1993 | US5213593 Pressure swing sorption system and method |
| 05/25/1993 | CA1318310C Catalyst having excellent heat resistance for use in purifying exhaust gases from internal combustion engines, and process for production thereof |
| 05/25/1993 | CA1318309C Regeneration of wash solutions containing fe(ii) and fe(iii) chelate complexes |
| 05/25/1993 | CA1318286C Apparatus and method for releasing a gas into the atmosphere |