| 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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| 09/07/1999 | US5948723 Layered catalyst composite |
| 09/07/1999 | US5948399 Deodorants for ostomy pouches, sanitary napkins, incontenence pads; smelling salts |
| 09/07/1999 | US5948382 Selective oxidation of hydrogen sulfide in the presence of mixed-oxide catalyst containing iron, molybdenum and antimony |
| 09/07/1999 | US5948377 Catalyst composition |
| 09/07/1999 | US5948376 Catalyst for purifying exhaust gases |
| 09/07/1999 | US5948369 Method and apparatus for exhausting gases from processing tank |
| 09/07/1999 | US5948355 Co in air treated by the filter is adsorbed onto a platinum group metal surface and thus decomposed by oxidization to co2, whereas sulfur compounds in the air are decomposed by oxidization to sulfates |
| 09/07/1999 | US5948143 Removal of a vapor phase contaminant in a gas stream by adsorption |
| 09/07/1999 | US5948142 Pressure and temperature swing adsorption and temperature swing adsorption |
| 09/07/1999 | US5948141 Purification of a noble gas using glow discharges |
| 09/07/1999 | US5947274 Desiccating container for moisture-sensitive material |
| 09/07/1999 | US5947063 Stoichiometric synthesis, exhaust, and natural-gas combustion engine |
| 09/07/1999 | US5946906 Exhaust gas purification system of internal combustion engine |
| 09/07/1999 | CA2178137C Sulfide-oxidizing bacteria and process therewith |
| 09/07/1999 | CA2145651C System for controlling flow through a process region |
| 09/07/1999 | CA2138180C Tuning of vacuum pressure swing adsorption systems |
| 09/07/1999 | CA2005574C Primary hindered aminoacids for promoted acid gas scrubbing process |
| 09/06/1999 | CA2264445A1 Process and plant for separating a gas mixture by adsorption |
| 09/03/1999 | CA2264370A1 Heterogeneous exchange rate adsorbent and psa process employing said adsorbent |
| 09/02/1999 | WO1999044405A1 Thermoelectric generator for natural gas well head |
| 09/02/1999 | WO1999043934A1 Method for treating an internal combustion engine exhaust gases and associated exhaust line |
| 09/02/1999 | WO1999043933A1 Method and device for cleaning exhaust gases |
| 09/02/1999 | WO1999043527A1 Air dryer reservoir module components |
| 09/02/1999 | WO1999043424A1 Improvements in and relating to gas generators |
| 09/02/1999 | WO1999043420A1 CONTROL OF AN NOx-ABSORBING CATALYTIC CONVERTER |
| 09/02/1999 | WO1999043419A1 A component for gas treatment |
| 09/02/1999 | WO1999043418A1 Pressure swing adsorption gas separation method, using adsorbents with high intrinsic diffusivity and low pressure ratios |
| 09/02/1999 | WO1999043417A1 Vpsa process using improved adsorbent materials |
| 09/02/1999 | WO1999043416A1 Rate-enhanced gas separation |
| 09/02/1999 | WO1999043415A1 Advanced adsorbent for psa |
| 09/02/1999 | WO1999043414A1 System and method for capturing and destroying hap/voc substances using microbial degradation |
| 09/02/1999 | WO1999043406A1 Spent caustic pretreatment and enhanced oxidation process |
| 09/02/1999 | DE19908863A1 Synthesis gas produced by electrolysis using hollow micro-fibers as solid electrolytes |
| 09/02/1999 | DE19908126A1 Process for cleaning air in houses |
| 09/02/1999 | DE19808382A1 Steuerung eines NOx-Absorber-Katalysator Controlling a NOx absorber catalyst |
| 09/02/1999 | CA2322197A1 Rate-enhanced gas separation |
| 09/02/1999 | CA2321813A1 Improvements in and relating to gas generators |
| 09/02/1999 | CA2321552A1 Vpsa process using improved adsorbent materials |
| 09/02/1999 | CA2321550A1 Advanced adsorbent for psa |
| 09/02/1999 | CA2320211A1 System and method for capturing and destroying hap/voc substances using microbial degradation |
| 09/01/1999 | EP0939207A1 New catalytic unit for the treatment of the exhaust gas of an internal combustion engine |
| 09/01/1999 | EP0939056A1 Device for treatment and removal of aqueous liquids by controlled atmospheric action |
| 09/01/1999 | EP0938921A1 A method for potting or casting inorganic hollow fiber membranes into tube sheets |
| 09/01/1999 | EP0938920A1 Process and device for purifying gas by adsoprtion using fixed horizontal beds |
| 09/01/1999 | EP0938464A1 Recovery of highly fluorinated carboxylic acids from the gaseous phase |
| 09/01/1999 | EP0938363A1 Method and composition for removing sulfides from fluid streams |
| 09/01/1999 | EP0938360A2 Adsorption drying unit, and process and device for checking the operating state of same |
| 09/01/1999 | EP0910472B1 Method of cleaning and/or regenerating wholly or partially de-activated catalysts for stack-gas nitrogen scrubbing |
| 09/01/1999 | EP0820342B1 Process and device for reducing pollutants, especially nitrogen oxides in combustion exhaust gases |
| 09/01/1999 | EP0777519B1 Wet flue gas desulphurisation process using limestone |
| 09/01/1999 | EP0755299B1 A method of purifying gases containing nitrogen oxides and an apparatus for purifying gases in a steam generation boiler |
| 09/01/1999 | EP0690744B1 Membrane |
| 09/01/1999 | EP0598917B1 Exhaust emission control system for internal combustion engine |
| 09/01/1999 | CN2335695Y Drawer type fixed-bed reactor |
| 09/01/1999 | CN2335694Y Desulfurating dust collector |
| 09/01/1999 | CN1227509A Modified carbon adsorbents and process for adsorption |
| 09/01/1999 | CN1227507A Mixing device for liquids |
| 09/01/1999 | CN1227506A Exhaust gas denitration method |
| 09/01/1999 | CN1227332A Means for removing odor produced by livestock |
| 09/01/1999 | CN1227140A Active hetorogeneously dispersed catalyst for nitric acid tail gas burning to raise temperature and its preparation |
| 09/01/1999 | CN1227136A Catalyst for purifying IC engine tail gas and/or industrial waste gas |
| 09/01/1999 | CN1227135A Gas decarbonization, desulfuration and decyanation technology by Fe-alkalisolution catalyst method |
| 09/01/1999 | CN1227134A Process for purifying air by using calcining aluminium oxide to adsorb impurity CO2 and H2O |
| 09/01/1999 | CN1227128A Process and system for treating material containing noxious components |
| 09/01/1999 | CN1044929C Method of separating sulphur compounds |
| 08/31/1999 | US5945370 Composite oxide having oxygen absorbing and desorbing capability and method for preparing the same |
| 08/31/1999 | US5945369 Porous support, a cerium oxide or solid solution of ceriumoxide and zirconium oxide and a noble metal loaded on support; automobile exhausts, purification of hydrocarbons, carbon monoxide, nitrogen oxides |
| 08/31/1999 | US5945331 Microorganisms, and method for biodegradation of organic compounds and method for environmental remediation |
| 08/31/1999 | US5945081 Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent |
| 08/31/1999 | US5945080 Catalyst and process for its production |
| 08/31/1999 | US5945079 Oxygen-selective sorbents |
| 08/31/1999 | US5945078 Processes for the scrubbing of noxious substances |
| 08/31/1999 | US5944951 Method for reusing spent gas from an ozone bleaching reactor |
| 08/31/1999 | US5944874 Separating gases |
| 08/31/1999 | US5944024 Vacuum filtration system especially adapted for removing smoke in the vicinity of ashtrays |
| 08/31/1999 | US5943865 To control temperature of steam in a steam generating power plant |
| 08/31/1999 | US5943858 Premixing chamber for an exhaust gas purification system |
| 08/31/1999 | US5943857 Denitrification; air pollution control |
| 08/31/1999 | US5943771 Method of making a catalytic converter for use in an internal combustion engine |
| 08/31/1999 | CA2180476C Process for regenerating nitrogen-treated carbonaceous chars used for hydrogen sulfide removal |
| 08/31/1999 | CA2072905C Process for producing oxygen enriched product stream |
| 08/31/1999 | CA2045983C Method for cleaning engine exhaust gas |
| 08/31/1999 | CA2004652C Method and apparatus for effecting gas-liquid contact reactions |
| 08/26/1999 | WO1999042773A1 Air purification with regenerators and adsorption bed for water |
| 08/26/1999 | WO1999042710A1 Method for providing and maintaining catalytically active surface in internal combustion engine |
| 08/26/1999 | WO1999042709A1 Combustion engine air supply system |
| 08/26/1999 | WO1999042563A1 Method for treating ethanol contained in exhaust gas |
| 08/26/1999 | WO1999042416A1 Removal of sulfur oxides from preheater off gases |
| 08/26/1999 | WO1999042403A1 Method and apparatus for condensing oxygen gas |
| 08/26/1999 | WO1999042204A1 Process of forming a permeable gas separation material |
| 08/26/1999 | WO1999042202A1 Exhaust gas catalyst for two-stroke engines |
| 08/26/1999 | WO1999042201A1 Attrition resistant, zinc titanate-containing, reduced sulfur sorbents |
| 08/26/1999 | DE19821056A1 Catalyst for purifying diesel engine exhaust gas, used as monolith without particle filter and adsorber |
| 08/26/1999 | DE19807520A1 Recovery of hydrofluoric acid and nitric acid from air vented from metal pickling plants |
| 08/26/1999 | DE19807225A1 Air preconditioning for fractionation, reducing costs and energy consumption |
| 08/26/1999 | DE19807203A1 Lean-burn engine exhaust gas NOx treatment especially for a lean-burn direct injection Otto engine |
| 08/26/1999 | DE19806880A1 Method of controlling air-conditioning system for vehicle interiors |
| 08/26/1999 | DE19806266C1 Katalysator und Verfahren zur Abgasreinigung Catalyst and process for purifying exhaust gas |
| 08/25/1999 | EP0937877A1 Monitoring of leakage in an exhaust gas treatment device of a combustion engine |
| 08/25/1999 | EP0937871A1 Method and apparatus for the fuelling of a vehicle including an exhaust gas cleaning device with reducing agent addition |