| 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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| 08/02/1994 | US5334564 Mixing water, smectite clay, basic alkaline earth compound, metal oxide oxidation catalyst, heating |
| 08/02/1994 | US5334368 Synthesis of mesoporous oxide |
| 08/02/1994 | US5334363 Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 08/02/1994 | US5334355 Provides exposure to both a catalytic converter and to an application of heat that converts ozone to oxygen; venting |
| 08/02/1994 | US5334248 Controlling air flow depending on air pollution increment between two detected values |
| 08/02/1994 | US5334237 Method and apparatus for predicting end-of-life of a consumable in a fluid purification system |
| 08/02/1994 | US5333462 Process and apparatus for the purification of hydrogen by cryogenic treatment of a gas containing the same |
| 08/02/1994 | CA1331082C Process and apparatus for the removal of nitric oxides from flue gases |
| 08/02/1994 | CA1331081C Process for the elimination of sulfurated compunds contained in some waste gases, including those of claus sulfur plants, and the recuperation of said compounds as sulfur |
| 07/31/1994 | CA2112959A1 Gas separation |
| 07/29/1994 | CA2109783A1 Raw sewage disposal apparatus |
| 07/28/1994 | DE4401014A1 Tubular membrane within tubular housing having seals at both ends permitting axial movement |
| 07/28/1994 | DE4302150A1 Exhaust gas treatment from heating devices, esp. boilers with fuel burners |
| 07/28/1994 | DE4302089A1 Steam super-heated by solar power |
| 07/28/1994 | DE4301717A1 Sectional housing for biological gas filter |
| 07/27/1994 | EP0608057A1 Iodine adsorbent for removing iodine from a gas |
| 07/27/1994 | EP0608047A2 Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core |
| 07/27/1994 | EP0608034A1 Filter device |
| 07/27/1994 | EP0607387A1 Method and device for regulating the humidity of a gas flow and at the same time purifyng it of undesired acid or alkaline gasses |
| 07/27/1994 | EP0607185A1 Particle-loaded nonwoven fibrous article for separations and purifications |
| 07/27/1994 | EP0557309B1 Heatable catalyst arrangement for cleaning the exhaust gases of internal combustion engines |
| 07/27/1994 | EP0551297B1 Process for the production of charcoal molecular sieves |
| 07/27/1994 | EP0412079B1 Filtering medium for technical filters |
| 07/27/1994 | CN1089884A Colour changeable dewatering agent and preparation method thereof |
| 07/27/1994 | CN1089882A Multistage membrane control system and process |
| 07/27/1994 | CN1089881A Equipment for treatment of polluting objects containing flue gas |
| 07/26/1994 | US5332609 Intumescent mounting mat |
| 07/26/1994 | US5332563 Detoxification of chemicals by oxidation with air to produce phosphorous oxide or phosphoric acid and reaction with organic compounds, degassing |
| 07/26/1994 | US5332562 Method for removing particulate matter and gases from a polluted gas stream |
| 07/26/1994 | US5332554 Exhaust purifying catalyst for use in an internal combustion engine and method of manufacturing same |
| 07/26/1994 | US5332547 Shipping foods |
| 07/26/1994 | US5332544 High-aluminum-containing ferritic stainless steel having improved high-temperature oxidation resistance |
| 07/26/1994 | US5332483 Gas separation system |
| 07/26/1994 | US5332426 Agglomerated activated carbon air filter |
| 07/26/1994 | US5332424 Hydrocarbon fractionation by adsorbent membranes |
| 07/26/1994 | US5331991 Ventilation method and means for the same |
| 07/26/1994 | US5331809 Exhaust gas purification system for an internal combustion engine |
| 07/26/1994 | CA1330871C Device and process for removing washcoat remaining in the ducts of newly coated monolithic and honeycombed catalyst supports and use of said device |
| 07/26/1994 | CA1330867C Handling characteristics of froth of elemental sulfur particles |
| 07/23/1994 | CA2111140A1 The separation of gas mixtures |
| 07/22/1994 | WO1993014026A1 Method and apparatus for desulfurization of a gas |
| 07/22/1994 | CA2127884A1 Method and apparatus for desulfurization of a gas |
| 07/21/1994 | WO1994015710A1 A packed bed and process for removal of residual mercury from gaseous hydrocarbons |
| 07/21/1994 | WO1994015709A1 Desiccant-coated substrate and method of manufacture |
| 07/21/1994 | WO1994015700A1 Device for cleaning flue gases in flue-gas desulphurization installations by spraying a lime suspension into the flue gas |
| 07/21/1994 | WO1994015699A1 Adsorption process and unit for the production of a gas by separation of a gaseous mixture |
| 07/21/1994 | WO1994015698A1 Apparatus and use for the oxygen enrichment of air |
| 07/21/1994 | DE4320218A1 Contaminated gas, waste gas and vapour purificn. - by photocatalysis on semiconductor oxide, esp. titanium di:oxide treated with electrolyte increasing capillary condensation and doped with inorganic halogen cpd. |
| 07/21/1994 | DE4315138C1 Mercury removed from incinerated sludge waste gases by washing first with alkaline solution and then with aqueous acid solution |
| 07/21/1994 | CA2153256A1 A packed bed and process for removal of residual mercury from gaseous hydrocarbons |
| 07/21/1994 | CA2131635A1 Process and unit of adsorption for gaz production by gaseous mixture separation |
| 07/20/1994 | EP0607100A2 Biological filter |
| 07/20/1994 | EP0606964A1 Apparatus for gas-liquid contact |
| 07/20/1994 | EP0606848A1 Magnesium A-zeolite for nitrogen adsorption |
| 07/20/1994 | EP0606315A1 Hardness suppression in urea solutions |
| 07/20/1994 | EP0606271A1 Method for purifying nitric oxide-containing gas. |
| 07/20/1994 | EP0606268A1 Method for purifying nitric oxide and sulphur dioxide containing gas. |
| 07/20/1994 | EP0483275B1 Method for reducing nox in a combustion process |
| 07/20/1994 | CN1089518A Apparatus for cleaning of polluted material from atmospher |
| 07/19/1994 | US5330956 Poisoning-resistant catalyst, process for production thereof, and process for using said catalyst |
| 07/19/1994 | US5330945 Silica, zeolite, catalytic metal, washcoat |
| 07/19/1994 | US5330733 Efficiency |
| 07/19/1994 | US5330732 Method for purifying exhaust gases |
| 07/19/1994 | US5330728 Catalytic converter with angled inlet face |
| 07/19/1994 | US5330727 Apparatus for removing carbon monoxide from gaseous media |
| 07/19/1994 | US5330726 Device for the separation of undesired exhaust gas components |
| 07/19/1994 | US5330725 Vacuum truck exhaust gas treatment apparatus |
| 07/19/1994 | US5330723 Portable purifier; disposable cartridges; no preheating |
| 07/19/1994 | US5330563 Process for separating a volatile organic compound from a gas |
| 07/19/1994 | US5330562 Fluidized bed scrubber for use in gas cleaning system |
| 07/19/1994 | US5330561 Extended vacuum swing adsorption process |
| 07/19/1994 | US5330560 Supported sorbents for removal and recovery of arsenic from gases |
| 07/15/1994 | CA2112310A1 Gas separation apparatus |
| 07/14/1994 | DE4318738C1 Ambient air cleaning |
| 07/14/1994 | DE4300188A1 Rapid composting of biomasses |
| 07/13/1994 | EP0606081A1 Purification system using heat of compression |
| 07/13/1994 | EP0606059A1 Column with an integrated heat exchanger |
| 07/13/1994 | EP0605995A1 A two-stage catalyst system for internal combustion engine |
| 07/13/1994 | EP0605991A1 Base metal only catalyst system for internal combustion engines |
| 07/13/1994 | EP0605819A2 Multistage membrane control system and process |
| 07/13/1994 | EP0605748A1 Process and apparatus for the treatment of catalysts on metal supports |
| 07/13/1994 | EP0605745A1 Apparatus for the thermal denitrification of flue gas |
| 07/13/1994 | EP0605719A1 Device for treating exhaust gas |
| 07/13/1994 | EP0605649A1 Compressed air system with warning mechanism for air dryer service life indication |
| 07/13/1994 | EP0605633A1 Catalyst prepared using irradiation |
| 07/13/1994 | EP0605482A1 A method and apparatus for increasing the yield of an air-drying process. |
| 07/13/1994 | CN2171779Y Purifying multipurpose use equipment for chimney waste gas |
| 07/13/1994 | CN1089187A Ozone filtering sheet for duplicator and its preparing method |
| 07/13/1994 | CN1025415C Process for dehydration of gases and composite permeable membranes therefor |
| 07/12/1994 | US5329045 Process for deodorising a mercapto acid by extracting malodorous compounds therefrom with carbon dioxide |
| 07/12/1994 | US5328758 Particle-loaded nonwoven fibrous article for separations and purifications |
| 07/12/1994 | US5328674 Combustion gas desulfurization method |
| 07/12/1994 | US5328673 Process for removal of NOx and SOx oxides from waste gases with chloric acid |
| 07/12/1994 | US5328672 Method for purification of lean-burn engine exhaust gas |
| 07/12/1994 | US5328671 Heat and mass transfer |
| 07/12/1994 | US5328610 Self-supported low pressure drop hollow fiber membrane panel and contactor module |
| 07/12/1994 | US5328503 Recovering oxygen from air |
| 07/12/1994 | US5327740 Dehumidifier |
| 07/12/1994 | CA2112796A1 Magnesium a-zeolite for nitrogen adsorption |
| 07/12/1994 | CA2049499C Argon recovery from partial oxidation based ammonia plant waste gases |