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| Number | Title | Issue Date |
| 7854791 | Method and means for simultaneously generating an aqueous froth and numerous micro-droplets for use in filtering a contaminated air stream A method and apparatus are provided for improving the efficiency of an aqueous froth filter. An array of saturated mesh assemblies interacts with an incoming contaminated air stream. As the air stream flows through the saturated mesh assemblies, an aqueous froth is ... | 12/21/2010 |
| 7285172 | Method for removal of particulate matter An improved process for removal of particulate matter having airborne potential. The process includes applying a foam to the particulate matter in a particulate matter area to prevent the particulate matter from becoming airborne. The particulate matter area may the... | 10/23/2007 |
| 7135058 | Polluted air treatment method and system A system for removing at least one pollutant from an air stream exhaust, the system including a plurality of enclosures through which the air stream exhaust is directed to cool the air stream exhaust, a plurality of barriers within each respective enclosure to imped... | 11/14/2006 |
| 6966942 | Process for purifying exhaust gases by employing a bubble generator A process for purifying exhaust gases using a bubble generation device is disclosed. ... | 11/22/2005 |
| 6872240 | Method and apparatus for filtering an air stream using an aqueous-froth together with nucleation A method for urging contact between contaminants in an air stream and the wet surfaces of an aqueous-froth, and additional means of limiting the froth to a predetermined volume are provided. A wide spectrum of solution micro-droplet sizes (0.001 to 1000 micron) is i... | 03/29/2005 |
| 6723756 | Aqueous separation of syngas components Unreacted syngas containing CO2 from a Fischer-Tropsch synthesis reactor, a methanol synthesis reactor or a dual functional syngas conversion is scrubbed with an aqueous medium to adsorb at least some of the CO2. At least a portion of the unrea... | 04/20/2004 |
| 6720359 | Scrubbing CO2 from a CO2-containing gas with an aqueous stream A process for removing CO2 from a CO2-containing gas. The process includes scrubbing CO2 from a CO2-containing gas using an aqueous phase liquid forming a CO2-enriched aqueous phase. The CO2-enriched ... | 04/13/2004 |
| 6667347 | Scrubbing CO2 from methane-containing gases using an aqueous stream A method for removing CO2 from a gas stream, including methane and CO2. The method includes contacting a gas stream with an aqueous stream, so that at least a portion of the CO2 in the gas stream is dissolved into the aque... | 12/23/2003 |
| 6616733 | Method and means for filtering an air stream with an aqueous froth A method and apparatus for filtering an air stream with an aqueous froth are provided. The process includes: passing a contaminated air stream through a diffusing sieve, into an aqueous solution in an expansion chamber; generating, maintaining, and contai... | 09/09/2003 |
| 6022727 | Method for forming reversible colloidal gas or liquid aphrons and compositions produced A method for forming gas or liquid aphrons with reversible surfactants or emulsifiers is described. Polymers which change their emulsifying properties upon change of pH, temperature or other condition are used to form the aphrons. The aphrons are useful f... | 02/08/2000 |
| 5749944 | Process and apparatus for the removal of dimethyl ester vapors or particles emitted during the storage of dimethyl esters In a method for removing dimethyl ester vapors or particles emitted from a molten dimethyl ester storage tank, a gaseous mixture containing dimethyl ester vapors or particles and an inert gas are supplied to an inlet port of a water scrubber. Water is con... | 05/12/1998 |
| 5558768 | Process for removing chlorides from crude oil A process is described for removing chlorides from crude oils, including heavy oils and bitumens. The process steps comprise (1) mixing a non-ionic surfactant with the crude oil, (2) bubbling a gas into the crude oil-surfactant mixture to form a froth, (3... | 09/24/1996 |
| 5522808 | Surgery plume filter device and method of filtering A filter device and method of filtering components from a surgery plume. The filter device is comprised of a plurality of elements which react with one or more components of a surgery plume, such as that generated during electrocautery or laser surgery. T... | 06/04/1996 |
| 5261933 | Vent gas deodorizing system A method of treating gas includes the steps of (1) mixing pressurized air and treatment liquid and thereby generating treatment foam and (2) venting the gas through the treatment foam. Preferably, the liquid is liquid deodorant for deodorizing gas from a ... | 11/16/1993 |
| 5039319 | Processes and apparatuses for removing organochemical components The present invention relates to a process, an apparatus and a chemical agent for removing an organochemical component from a gas flowing through the froth scrubber tower at least a cross-sectional area of which is covered by a surfactant-containing froth... | 08/13/1991 |
| 4925462 | Processes for removing organochemical components The present invention relates to a process, an apparatus and a chemical agent for removing an organochemical component from a gas flowing through the froth scrubber tower at least a cross-sectional area of which is covered by a surfactant-containing froth... | 05/15/1990 |
| 4765807 | Method and apparatus for the oxygen enrichment of water A system for the treatment of liquids, especially oxygen enrichment of water which is used for aquaculture purposes such as the breeding of fish, avoids gas bubbles in a water reservoir and makes it possible to freely treat fresh water and/or recirculated... | 08/23/1988 |
| 4687494 | Apparatus and method for pumping air An apparatus and method for pumping air in which ambient air is mechanically filtered and introduced into a stream of water circulating in a closed path and driven by a water pump, the air-water mixture being directed to an air separation chamber in which... | 08/18/1987 |
| 4451270 | Absorption process for producing oxygen and nitrogen and solution therefor Process for the separation and purification of oxygen and nitrogen is disclosed which utilizes solutions of oxygen carriers to selectively absorb oxygen from a gaseous stream, leaving nitrogen as a byproduct. In the process, an oxygen carrier capable of r... | 05/29/1984 |
| 4380459 | Method for reducing the amount of coal dust in the environment surrounding coal mining Coal dust laden air is treated with an aqueous foam of controlled durability and controlled penetrability so that a very high proportion of the particles in the air, including very small particles, are captured by the foam and drained into the liquid resu... | 04/19/1983 |
| 4193774 | Electrostatic aerosol scrubber and method of operation A method and apparatus for removing entrained particulate matter from a gas stream in which the particles are charged with an electrostatic charge of one polarity, droplets of electrostatically charged liquid are sprayed into the gas stream and the result... | 03/18/1980 |
| 4072761 | Aromatization of coffee products Coffee aroma gas is admixed with an absorbent comprising aqueous liquid and liquid edible oil under pressure to produce a foam. This foam may then be contacted with soluble coffee solids to effect their aromatization.... | 02/07/1978 |
| 4027993 | Method and apparatus for compressing vaporous or gaseous fluids isothermally A gaseous fluid is combined with a liquid to form a transient foam for processing the fluid as by compression, expansion, condensation, heat exchange or chemical reaction.... | 06/07/1977 |
| 4009010 | Method and apparatus for foam scrubber level detector An apparatus and method particularly adapted for use in preventing accumulation of material on at least a portion of a monitoring device for a foam scrubber or the like. The foam scrubber apparatus comprises a container having a layer of foam material the... | 02/22/1977 |
| 4003724 | Foam scrubber and method An improved apparatus and method for separating gaseous pollutants and particles from a gas with a foam layer wherein the apparatus includes means for monitoring the foam layer composition and/or height of the foam layer, dispensing means for dispensing a... | 01/18/1977 |
| 4000992 | Dust suppression with small bubble foam in cyclone Water sprays and foam, of the type used for fire fighting, have been used for dust suppression; but were not effective in removing the smaller particles from dust laden air. This invention uses a foam of high film strength that makes possible the bending ... | 01/04/1977 |
