| 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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| 08/23/1994 | US5340381 Pressure responsive mechanical neumatic valves with check valves are used and aperture to control cycling period, purging and product release; molecular sieve zeolite absorbs nitrogen to produce high purity oxygen |
| 08/23/1994 | US5339755 Dry scrubber with condensing heat exchanger for cycle efficiency improvement |
| 08/23/1994 | US5339754 Containing reducible metal oxide to maintain reserovir of oxygen |
| 08/23/1994 | US5339633 Recovery of carbon dioxide from combustion exhaust gas |
| 08/23/1994 | CA1331597C Composite adsorbent |
| 08/21/1994 | CA2115945A1 Process for the degradation of highly toxic halogenated organic compounds contained in gases |
| 08/19/1994 | CA2130462A1 A process for the conversion of n20 |
| 08/18/1994 | WO1994018441A1 Metallic honeycomb structure supported in an inner and an outer casing tube, especially a catalyst support |
| 08/18/1994 | WO1994018440A1 Device for the catalytic purification of flowing gases, especially exhaust gases of internal combustion engines |
| 08/18/1994 | WO1994018439A1 Electrically heatable honeycomb structure with its resistance increased by slots |
| 08/18/1994 | WO1994018119A1 Method for scrubbing pollutants from an exhaust gas stream |
| 08/18/1994 | WO1994017985A1 Process of making microporous pps membranes |
| 08/18/1994 | WO1994017902A1 Membrane module assembly |
| 08/18/1994 | WO1994017901A1 Method for removal of polluting gases from air |
| 08/18/1994 | WO1994017900A1 Exhaust gas dry cleaning agent |
| 08/18/1994 | WO1994017899A1 Tunable compact electron beam generated plasma system for the destruction of gaseous toxic compounds |
| 08/18/1994 | WO1994017898A1 Off-gas scrubber system |
| 08/18/1994 | DE4402850A1 System for monitoring and controlling internal combustion engines and their exhaust gas emissions, using gas sensors |
| 08/18/1994 | DE4304510A1 Process for recovering carbon disulphide from a water vapour/carbon disulphide mixture |
| 08/18/1994 | DE4304444A1 Device for treating liquids and/or gases with ultraviolet radiation |
| 08/18/1994 | DE4304192A1 Process for scrubbing acidic gas components out of flue gases by absorption |
| 08/18/1994 | DE4304191A1 Process for scrubbing acidic gas components out of flue gases by absorption |
| 08/18/1994 | DE4304143A1 Process for purifying waste air, in particular from cellulose staple fibre works, by recovery of CS2 and H2S |
| 08/18/1994 | CA2155440A1 Exhaust gas dry cleaning agent |
| 08/18/1994 | CA2115723A1 Catalytic converter for converting reactants of a gas mixture |
| 08/17/1994 | EP0611192A1 Process for the preparation of compositions based on mixed oxides of zirconium and cerium |
| 08/17/1994 | EP0611140A1 Gas stream purification apparatus |
| 08/17/1994 | EP0610803A1 Process and device for heating the interior of a motor vehicle |
| 08/17/1994 | EP0610781A1 Carbon dioxide absorber and its manufacturing method using concrete sludge |
| 08/17/1994 | EP0610715A1 Membrane module for the removal of gaseous substances from a gas stream |
| 08/17/1994 | EP0597965A4 Demetallation of hydrocarbon feedstocks with a synthetic mesoporous crystalline material. |
| 08/17/1994 | EP0505398B1 Process for obtaining nitrogen from air by pressure swing adsorption on carbon molecular sieves |
| 08/17/1994 | CN2174250Y Wet-way desulfating and dust-abating apparatus for flue-gas of 10-20 tonnage boiler |
| 08/17/1994 | CN2174249Y Freezing air dryer |
| 08/17/1994 | CN1090791A Filling material of tower for material and/or heat exchange |
| 08/17/1994 | CN1025657C Prevention of membrane degradation |
| 08/17/1994 | CN1025656C Improved membrane separation system and process |
| 08/17/1994 | CN1025655C Double deck distributor |
| 08/17/1994 | CA2115008A1 Conversion of carbon monoxide to carbon dioxide |
| 08/16/1994 | US5338778 Iron chelate compound and water soluble anionic polymer |
| 08/16/1994 | US5338715 Crystalline silicate |
| 08/16/1994 | US5338623 With conductive interconnecting structures electrically connecting anode of one cell to cathode of adjacent cell and gas-tight seal positioned between interconnect and cells |
| 08/16/1994 | US5338521 Process for reversibly absorbing acid gases from gaseous mixtures |
| 08/16/1994 | US5338450 Spiral-wound adsorber module |
| 08/16/1994 | US5338412 Electrochemical device for removal and regeneration of oxygen and method |
| 08/16/1994 | US5338340 Filter and method of making same |
| 08/16/1994 | US5338253 Filter for an air-conditioning or heating system for a motor vehicle |
| 08/16/1994 | CA2016045C Gas separation by pressure swing adsorption |
| 08/11/1994 | DE4402311A1 Process for improving the filtration of sulphur-containing suspensions |
| 08/11/1994 | DE4305236C1 Appliance for generating an ammonia-laden stream of hot air |
| 08/11/1994 | DE4303693A1 High power air filter for a passenger compartment for use in passenger cars and lorries |
| 08/11/1994 | DE4303670A1 Method for the separation of vaporous components from air and industrial gases |
| 08/11/1994 | DE4303272A1 Process for purifying waste air by a catalytic system |
| 08/11/1994 | DE4301760A1 Verfahren und Vorrichtung für einen Regenerativ-Wärmetauscher zur Behandlung schadstoffhaltiger Abgase Method and apparatus for a regenerative heat exchanger for the treatment of hazardous gases |
| 08/10/1994 | EP0609971A1 Sulfur reduction in FCC gasoline |
| 08/10/1994 | EP0609687A1 Precipitant for heavy metal precipitation |
| 08/10/1994 | EP0609620A1 Gas separation |
| 08/10/1994 | EP0609614A1 Raw sewage disposal apparatus |
| 08/10/1994 | EP0609401A1 PROCESS FOR PREPARING HYDROXYLAMINE FROM NO x?-CONTAINING FLUE GASES. |
| 08/10/1994 | EP0609370A1 Biological filter. |
| 08/10/1994 | EP0609288A1 A method of removing nitrogen oxides from a gas flow by using a combustion exchanger. |
| 08/10/1994 | CN2173652Y Dry and wet integrated duster for boiler |
| 08/09/1994 | US5336839 Foam-free scrubbing of crude hydrocarbon mixture with absorbing agent |
| 08/09/1994 | US5336838 Prevention of foaming by introducing droplets of acetylene-free liquid C2 stream midway between the bottom feeding of crude mixture and top feeding of absorbent |
| 08/09/1994 | US5336651 Supported zeolite catalyst using a hydrocarbon as reducing agent |
| 08/09/1994 | US5336476 Process for removing nitrogen oxides in exhaust gases to nitrogen |
| 08/09/1994 | US5336471 Support of ceramic catalyst |
| 08/09/1994 | US5336300 Providing granular adsorbent in sealed space, blowing mixed gas from nozzles to perferentially adsorb first gas, transfer-ring adsorbent to second sealed space, desorbing, reactivat-ing, returning to original sealed space |
| 08/09/1994 | US5336298 Polyelectrolyte membranes for the separation of acid gases |
| 08/09/1994 | US5335492 Exhaust gas filter and/or a catalytic converter |
| 08/09/1994 | US5335426 Method and apparatus for thermal regeneration of molecular sieve material used in oxygen concentrators |
| 08/09/1994 | CA1331375C Catalyst for the purification of exhaust gases of internal combustion engines |
| 08/04/1994 | WO1994017292A1 Electrically insulating supporting structure capable of metallic bonding, process for producing the same and its use |
| 08/04/1994 | WO1994017291A1 Exhaust gas cleaning device for an internal combustion engine |
| 08/04/1994 | WO1994016992A1 Combined power environmental cycle (cpec) |
| 08/04/1994 | WO1994016990A1 Method for removing sulfide with catalytic carbon |
| 08/04/1994 | WO1994016814A1 Process for making catalytic carbon |
| 08/04/1994 | WO1994016806A1 METHOD FOR NOx REMOVAL BY CATALYTIC CARBON |
| 08/04/1994 | WO1994016800A1 Perstraction with chemical reaction |
| 08/04/1994 | WO1994016799A1 METHOD FOR SOx REMOVAL BY CATALYTIC CARBON |
| 08/04/1994 | WO1994016798A1 Catalytic decomposition process of nitrous oxide pure or contained in gaseous mixtures |
| 08/04/1994 | WO1994016797A1 Method and apparatus for cleaning gases containing sulphur dioxide |
| 08/04/1994 | WO1994016796A1 A method and an apparatus for the purification of residual products from flue gas purification plants |
| 08/04/1994 | WO1994016795A1 Langmuir moderate type 1 desiccant for air |
| 08/04/1994 | CA2132522A1 Process for making catalytic carbon |
| 08/04/1994 | CA2131996A1 Method for nox removal by catalytic carbon |
| 08/04/1994 | CA2131987A1 Method for removing sulfide with catalytic carbon |
| 08/03/1994 | EP0609028A1 Dry exhaust gas conditioning |
| 08/03/1994 | EP0608884A1 Method of making sorbent articles |
| 08/03/1994 | EP0608619A1 Exhaust gas purification |
| 08/03/1994 | EP0608606A1 Gas drying apparatus |
| 08/03/1994 | EP0608547A1 Process for regenerating mercury adsorbants |
| 08/03/1994 | EP0608539A1 Carbon-coated inorganic substrates |
| 08/03/1994 | CN1090372A Catalytic converter with two or more honeycomb bodies in a casing tube, and method for its production |
| 08/03/1994 | CN1090221A Preparation of effective Mo-family deoxidiser |
| 08/03/1994 | CN1090220A Matter-conductive crown element for the packing of a matter-exchange column |
| 08/03/1994 | CN1090216A Catalysts for treating exhaust gases from internal combustion and stationary source engines |
| 08/02/1994 | US5334784 Water separation process |
| 08/02/1994 | US5334697 Contains repeating units derived from 9,9-disubstituted xanthene dianhydride |
| 08/02/1994 | US5334623 Absorbent material and uses thereof |