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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07/07/1998 | CA2219859A1 Cryogenic hybrid system for producing low purity oxygen and high purity nitrogen |
07/02/1998 | WO1998028381A1 Corrosion inhibitor |
07/02/1998 | WO1998028248A1 Process and plant for the production of methanol |
07/02/1998 | WO1998028226A1 Method for purifying a cryogenic fluid by filtration and adsorption |
07/02/1998 | WO1998028071A1 Process and plant for reforming hydrocarbonaceous feedstock |
07/02/1998 | WO1998028070A1 Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr |
07/02/1998 | WO1998028063A1 Method for treating exhaust gas of internal combustion engines functioning with sulphur-containing fuel |
07/02/1998 | WO1998028062A1 Process for recovering cf4 and c2f6 from a gas |
07/02/1998 | WO1998028061A1 Improved fluid fractionator |
07/02/1998 | WO1998009699A3 Plasma-assisted catalytic reduction system |
07/02/1998 | CA2275962A1 Method for purifying a cryogenic fluid by filtration and adsorption |
07/01/1998 | EP0851331A1 Membrane control system and process |
07/01/1998 | EP0850686A1 Thermally insulated reactor |
07/01/1998 | EP0850676A1 Catalyst for removing organic halogen compounds, preparation method thereof and method for removing organic halogen compounds |
07/01/1998 | EP0850293A1 Succinic acid derivative degradable chelants, uses and compositions thereof |
07/01/1998 | EP0850191A1 Process and device for separating hydrogen from a gas mixture |
07/01/1998 | EP0850102A1 NO x? CATALYST AND METHOD OF USING THE SAME |
07/01/1998 | EP0850101A1 Methods and apparatus for treating waste gas streams from wood burning processes |
07/01/1998 | EP0840839A4 Improved combined electrically heatable converter body |
07/01/1998 | EP0783469B1 Device for abating carbon monoxide in airbags |
07/01/1998 | EP0760919B1 Sanitizable slider diaphragm valve |
07/01/1998 | EP0759803B1 Composite structure including a solid electrolyte and at least one volume electrode |
07/01/1998 | EP0547209B1 Method and apparatus for purifying contaminated gases |
07/01/1998 | CN1186192A Tube for heat exchanger |
07/01/1998 | CN1185989A Apparatus for treating waste gas |
07/01/1998 | CN1185988A Technology for treating low temperature plasma waste gas |
07/01/1998 | CN1185987A Regenerative desiccant air dryer |
07/01/1998 | CN1038908C Method and apparatus for air separation |
06/30/1998 | US5774816 Apparatus and method for cleaning a vessel |
06/30/1998 | US5773621 Gas dispersion pipe for gas-liquid contact, and device for gas-liquid contact making use thereof |
06/30/1998 | US5773529 Method and apparatus which removes odor and pollutants when preparing cullet for use in an electrostatic bed filter |
06/30/1998 | US5773380 Compositions using high-potassium zeolite A |
06/30/1998 | US5773105 Absorbent packet |
06/30/1998 | US5773103 Filter media |
06/30/1998 | US5772973 Exhaust gas cleaner and method for removing nitrogen oxides |
06/30/1998 | US5772972 Catalyst/hydrocarbon trap hybrid system |
06/30/1998 | US5772738 Multifunctional air filter and air-circulating clean unit with the same incorporated therein |
06/30/1998 | US5772737 Process for treating a gas mixture by pressure swing adsorption |
06/30/1998 | US5772735 Supported inorganic membranes |
06/30/1998 | US5772734 Purification of gas streams by scrubbing, stripping, condensation and separation |
06/30/1998 | US5772733 Natural gas liquids (NGL) stabilization process |
06/30/1998 | US5772710 Air treating system |
06/30/1998 | US5772709 Apparatus for removing ammonia and carbon dioxide gases from a steam |
06/30/1998 | US5771689 Pipe evaporator for feeding additional fuel into the exhaust gas |
06/30/1998 | US5771686 Method and apparatus for operating a diesel engine |
06/30/1998 | US5771685 In an exhaust passage of an internal combustion engine |
06/30/1998 | US5771684 For diverting a substrate gas stream from a first to second flow path |
06/30/1998 | CA2145654C Remote region vacuum regulator |
06/30/1998 | CA2120570C Regenerative thermal oxidizer |
06/30/1998 | CA2036018C Method and system for handling exhaust gas in a boiler |
06/25/1998 | WO1998027322A1 METHOD OF DE-SULPHURATING ENGINE EXHAUST NOx TRAPS |
06/25/1998 | WO1998027015A1 Bioremediation of pollutants with butane-utilizing bacteria |
06/25/1998 | WO1998027008A1 Process for recovering sulfur hexafluoride |
06/25/1998 | WO1998026858A1 Method for the reduction of nitrogen oxides |
06/25/1998 | WO1998026857A1 Method for the catalytic decomposition of nitrogen oxides |
06/25/1998 | WO1998026856A1 Method of removing nitric oxides from the waste gases produced during cement production |
06/25/1998 | WO1998026855A1 Method for preparing alkali metal fluoride pellets and gas scrubbing method using the same |
06/25/1998 | WO1998026854A2 Method for the catalytic decomposition of nitrogen oxides |
06/25/1998 | DE19800686A1 Biochemical filter material for large installations |
06/25/1998 | DE19756517A1 Honig honeycomb structure used as carrier for vehicle exhaust gas catalysts |
06/25/1998 | DE19654184A1 Absorbent=recovery regeneration method for effluent air=stream solvent |
06/25/1998 | DE19653652A1 Gas sweetening plant for removing hydrogen sulphide and carbonyl sulphide by absorption and hydrolysis |
06/25/1998 | DE19653200A1 Verfahren zur Reduktion von Stickoxiden A process for the reduction of nitrogen oxides |
06/25/1998 | DE19652902A1 Removal of ammonia and amines from waste gas |
06/25/1998 | DE19652740A1 Verfahren zur Entstickung der bei der Herstellung von Zement anfallenden Abgase Process for nitrogen removal costs incurred during the production of cement exhaust |
06/25/1998 | DE19652739A1 Verfahren zur katalytischen Zersetzung von Stickoxiden Process for the catalytic decomposition of nitrogen oxides |
06/25/1998 | DE19652738A1 Verfahren zur katalytischen Zersetzung von Stickoxiden Process for the catalytic decomposition of nitrogen oxides |
06/25/1998 | CA2274570A1 Process for recovering sulfur hexafluoride |
06/24/1998 | EP0849443A1 Mixture delivery device |
06/24/1998 | EP0849441A1 Control strategy for NOx-accumulator |
06/24/1998 | EP0849245A1 Process and plant for the production of methanol |
06/24/1998 | EP0849218A1 Nitrogen PSA with intermediate pressure transfer |
06/24/1998 | EP0849217A1 Process and apparatus for purifying a gas containing hydrogen sulfide and sulfur dioxide |
06/24/1998 | EP0848993A2 Method for evaluating performance of chemical filter for cleaning gas |
06/24/1998 | EP0848986A1 Method of reducing nitrogen oxides in exhaust gases of internal combustion engines |
06/24/1998 | EP0848985A1 Process and apparatus for reduction of nitrogen oxydes in gaseous mixtures |
06/24/1998 | EP0848984A1 Catalyst for exhaust gas purification and system for exhaust gas purification |
06/24/1998 | EP0848983A1 Catalyst for exhaust gas purification and system for exhaust gas purification |
06/24/1998 | EP0848982A1 Method and apparatus for treating a gas by refrigeration and contacting with a solvent |
06/24/1998 | EP0848981A1 Pressure swing adsorption plant to separate oxygen from the air and process to operate the same |
06/24/1998 | EP0848641A1 Direct oxidation method for converting sulphur compounds into sulphur with a copper catalyst |
06/24/1998 | EP0848640A1 Process and device for scrubbing acidic gases |
06/24/1998 | EP0848639A1 Oxygen enriched air generation system |
06/24/1998 | EP0848638A1 Vapor recovery system with automatic valve control |
06/24/1998 | EP0848637A1 Air filtration device |
06/24/1998 | CN2284642Y Fume purifier for cremating machine |
06/24/1998 | CN2284641Y Ceramic pipe desulfurizing water dust scrubber |
06/24/1998 | CN1185778A Simplified efficient process for reducing NOx, SOx and particulates |
06/24/1998 | CN1185756A Glass material for carrying a photocatalyst, filter device using the same and light irvadiating method |
06/24/1998 | CN1185755A Bench top UV-activated odor filtration device |
06/24/1998 | CN1185577A Pressure revolving adsorption using medidum pressure to transfer nigrogen |
06/24/1998 | CN1185571A Absorption chamber |
06/24/1998 | CN1185353A Catalyst for purifying nitrogen-contained gas to remove carbon monoxide and course thereof |
06/24/1998 | CN1038815C Half-dry and dry desulphurizing apparatus |
06/24/1998 | CN1038814C Device for purifying gas |
06/23/1998 | US5771473 Method and plant for cleaning lightly radioactive waste incineration gases |
06/23/1998 | US5770785 Apparatus and method for removing carbon dioxide contained in exhaust gas |
06/23/1998 | US5770537 Soaking in basic reducing solution |
06/23/1998 | US5770326 Monolithic mass and energy transfer cell |
06/23/1998 | US5770275 Molecular sieving silica membrane fabrication process |