| 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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| 12/27/1988 | US4793841 Process and apparatus for fractionation of a gaseous mixture employing side stream withdrawal, separation and recycle |
| 12/27/1988 | US4793837 Zeolite and activated carbon impregnated pad for pet odor removal |
| 12/27/1988 | US4793832 Air purification and temperature controlling system and method |
| 12/27/1988 | US4793831 Process for purifying flue gases |
| 12/27/1988 | US4793830 Process for producing high quality gas for instrumentation application using gas separation membranes |
| 12/27/1988 | US4793829 Permeation process for separating ammonia from a gas mixture |
| 12/27/1988 | US4793797 Method of catalytic combustion using heat-resistant catalyst |
| 12/27/1988 | US4793380 Switch-over valve, preferably for an air drier |
| 12/27/1988 | US4793270 Incineration of waste materials |
| 12/27/1988 | US4793143 Enthalpic heat pump desiccant air conditioning system |
| 12/27/1988 | US4793136 Reinforced metallic honeycomb structure |
| 12/27/1988 | US4793135 Monitoring, supplying carbon monoxide to catalytic converter as needed |
| 12/22/1988 | DE3825155A1 Vortex tube with ultrasonic inflow |
| 12/22/1988 | DE3719415A1 Filter device and process for the production thereof |
| 12/22/1988 | DE3719216A1 Ventilation catalyst for motor vehicles |
| 12/22/1988 | DE3719118A1 Semipermeable membrane having microporous througholes and process and apparatuses for the production thereof |
| 12/22/1988 | DE3718978A1 Arrangement for heat recovery and cleaning of flue gas |
| 12/22/1988 | DE3718880A1 Process for purifying exhaust gases from desulphurisation plants |
| 12/21/1988 | EP0296147A1 Process for the recovery and/or regeneration of acids from metalliferous solutions of these acids |
| 12/21/1988 | EP0295908A2 Flue gas desulfurization |
| 12/21/1988 | EP0295323A1 Process and apparatus for thermal treatment |
| 12/21/1988 | CN88103260A Exhaust gas treatment process using irradiation and apparatus for same |
| 12/21/1988 | CN88103007A Process and apparatus for binding salt-forming compositions into solid when combustion of fossil fuels, garbages and like |
| 12/21/1988 | CN88102048A Process for reducing nitrogen oxides in effluent using hydrocarbon or hydrogen peroxide |
| 12/21/1988 | CN88101354A Process for regenerating absorbent solution streams laden with carbon dioxide and oxysulfide |
| 12/20/1988 | US4792440 Mixing with alkaline absorption agent; cooling to just above dewpoint |
| 12/20/1988 | US4792439 Process for decreasing the content of nitrogen oxides in flue gases |
| 12/20/1988 | US4792405 Removal of hydrogen selenide liquids |
| 12/20/1988 | CA1247075A1 Catalyst for purifying diesel engine exhaust gases |
| 12/20/1988 | CA1247074A1 Three-way catalysts of improved efficiency |
| 12/20/1988 | CA1247055A1 Generation of anaerobic or microaerophilic atmosphere |
| 12/15/1988 | WO1988009695A1 Flue gas scrubber system |
| 12/15/1988 | WO1988009694A1 In-line compressed air carbon monoxide filter |
| 12/15/1988 | DE3720976C1 Process for firing ceramic material and apparatus for carrying this out |
| 12/15/1988 | DE3718457A1 Process for scrubbing out NO and/or SO2 from gas mixtures |
| 12/15/1988 | DE3718434A1 Process for enhancing the thermal efficiency of the coking process |
| 12/15/1988 | DE3718370A1 Process and apparatus for the thermal treatment of catalysts |
| 12/15/1988 | DE3718035A1 Process for exhaust air purification and solvent recovery |
| 12/15/1988 | DE3718016A1 Process for mechanical-chemical-thermal desulphurisation of bituminous coal |
| 12/14/1988 | EP0295181A1 Method for the desaturation of extracted gas and its application to transport systems under vacuum |
| 12/14/1988 | EP0295083A2 Apparatus and method for enhanced chemical processing in high pressure and atmospheric plasmas produced by high frequency electro-magnetic waves |
| 12/14/1988 | EP0295054A2 Humidity regulating apparatus |
| 12/14/1988 | EP0294725A2 Process for making highly permeable coated composite hollow fiber membranes |
| 12/14/1988 | EP0294715A2 Process for testing the efficacy of a catalyst |
| 12/14/1988 | EP0294708A2 Process for the fabrication of a filtermaterial |
| 12/14/1988 | EP0294658A1 Process for treating effluent gas |
| 12/14/1988 | EP0294588A2 Process for the purification of gases |
| 12/14/1988 | EP0294382A1 A gas concentrating method and plant |
| 12/14/1988 | CN88102880A Process for causing gaseous trace element particules to pass from a flowing hot gas into a dust by means of water |
| 12/13/1988 | US4791091 Refractory oxide with lanthanum oxide and noble metal component dispersed thereon |
| 12/13/1988 | US4791082 Method of making zeolite castings |
| 12/13/1988 | US4790945 Removal of hydrogen selenide |
| 12/13/1988 | US4790934 Apparatus for filtering fluid medium |
| 12/13/1988 | US4790862 Joint operation of gas sensor and ultraviolet ray detector |
| 12/13/1988 | US4790860 Respirator for workers in toxic environments; regeneratable filter cartridge by heating |
| 12/13/1988 | US4790859 Method of separating gaseous mixture |
| 12/13/1988 | US4790858 Enhanced recovery of high purity hydrogen |
| 12/13/1988 | CA1246466A1 Control system for air fractionation by selective adsorption |
| 12/13/1988 | CA1246308A1 Process for producing aromatic imide polymer hollow filaments |
| 12/08/1988 | DE3718021A1 Method to form barriers for bacteria, moulds, spores etc., discharged downstream of biofilters |
| 12/08/1988 | DE3717848A1 Inorganic material and process for the production thereof |
| 12/08/1988 | DE3717193A1 Method for decreasing the deactivation of Denox catalysts |
| 12/08/1988 | DE3715746A1 Process for removing ammonia |
| 12/07/1988 | EP0294204A2 A process for producing a catalyst for denitration by catalytic reduction using ammonia |
| 12/07/1988 | EP0294142A2 Method of cleaning exhaust gases |
| 12/07/1988 | EP0294036A2 Conditioning of the atmosphere over perishable goods |
| 12/07/1988 | EP0294024A1 Process for removing nitrous oxides from a gas |
| 12/07/1988 | EP0293985A1 Contacting devie for gas and solid particles |
| 12/07/1988 | EP0293855A2 Granulates containing alkaline-earth carbonates |
| 12/07/1988 | EP0293759A1 An exhaust gas treatment process using irradiation and apparatus for same |
| 12/07/1988 | EP0293737A2 Ammonia separation using semipermeable membranes |
| 12/07/1988 | EP0293736A2 Ammonia separation using ion exchange polymeric membranes and sorbents |
| 12/07/1988 | EP0293717A2 Zeolite A-granulat for oxygen enrichment |
| 12/07/1988 | EP0293688A2 Method and system for removal of sulfur compounds from gases and for regenerating spent sorbents |
| 12/07/1988 | EP0293424A1 PROCESS FOR REDUCING FLUE GAS NO x? EMISSION FROM FIRING INSTALLATIONS |
| 12/07/1988 | CN87106504A Absorption of sulfur dioxide by polar non-protonic solvent |
| 12/06/1988 | US4789659 Catalyst of a sintered iron oxide-containing article |
| 12/06/1988 | US4789533 Impregnating support with vanadium alkoxide, calcining |
| 12/06/1988 | US4789532 Spray drying lime-ground blast furnace slag slurries; conversion to concrete; pollution control |
| 12/06/1988 | US4789531 Precharging carbon-containing adsorbent with reducing agent |
| 12/06/1988 | US4789530 Absorption of hydrogen sulfide with an alkali metal ethylenediaminetetraacetate and/or alkali metal nitrilotriacetate |
| 12/06/1988 | US4789480 Membrane module and the use thereof for the separation of liquids according to the pervaporation process |
| 12/06/1988 | US4789388 Oxygen enriching apparatus |
| 12/06/1988 | US4788776 Apparatus for recovery of solvent vapor in a drying process |
| 12/06/1988 | CA1245975A1 Column packing |
| 12/06/1988 | CA1245831A1 Process for desulphurizing flue gases |
| 12/01/1988 | WO1988009306A1 Process for helium enrichment |
| 12/01/1988 | WO1988009305A1 Process for extraction of helium |
| 12/01/1988 | WO1988009226A1 Method and apparatus for cleaning freight containers as well as for treating and circulating the fluids used |
| 12/01/1988 | WO1988009207A1 Vapor-liquid contact device and method |
| 12/01/1988 | WO1988009205A1 Process, filter and device for supplying high-quality breathing air |
| 12/01/1988 | WO1988009204A1 Multiple-stage installation for scrubbing exhaust gases |
| 12/01/1988 | WO1988009203A2 Process for manufacturing reactive calcium hydroxide for purifying gases and exhaust gases and process for purifying gases and exhaust gases |
| 12/01/1988 | DE3813072A1 Process for separating off organic substances, in particular styrene, from air |
| 12/01/1988 | DE3716566A1 Process for the production of reactive calcium hydroxides for exhaust gas purification |
| 11/30/1988 | EP0293298A1 Processes for the preparation and regeneration of a copper-containing solid mercury adsorption mass |
| 11/30/1988 | EP0293186A2 Microporous membrane trickle bed process |
| 11/30/1988 | EP0292823A2 Process for NO recovery from off-gas generated in the production of ammon nitrite |
| 11/30/1988 | EP0292569A1 Mixed gas separation apparatus utilizing pressure swing adsorption |
| 11/30/1988 | CN88102874A Improved composite separation membranes and preparation and use thereof |