Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8172926 | Aerosol separator in COrecovery system An aerosol separator is arranged before a CO2 compressor to prevent wear and damage in CO2 recovery systems for the recovery of CO2 arising during fermentation using a compressor. ... | 05/08/2012 |
| 8167979 | High efficiency, non-toxic scrubbing system and method for removing carbon dioxide from a gas Scrubbing systems and methods for removing carbon dioxide from a gas are provided. The scrubbing system can include a scrubber defining a vertically oriented tubing assembly, a gas inlet and a gas outlet. The tubing assembly has a tank section, a reduced diameter se... | 05/01/2012 |
| 7867322 | Use of SOfrom flue gas for acid wash of ammonia A gas cleaning system, which is operative for cleaning a process gas containing carbon dioxide and sulphur dioxide, comprises a combined cooling and cleaning system (16), and a CO2-absorber. The combined cooling and cleaning system (16) comp... | 01/11/2011 |
| 7682425 | Method for removing ammonia and dust from a waste gas that results during the production of fertilizers The invention relates to a method for removing ammonia and dust from a waste gas that occurs during the production of fertilizers, preferably urea, in which method the waste gas is introduced into a first washer, and a cooling gas is introduced into the one washer a... | 03/23/2010 |
| 7374604 | System and method for flue gas treatment The present invention discloses a system for flue gas treatment, wherein the provided system comprises a quench module, a first control module, a filter collecting module, a wet scribing module and a regeneration module. In this system, parts of the particles contai... | 05/20/2008 |
| 7338579 | Dewatering process A formaldehyde-containing product is separated from a formalin solution containing formaldehyde, water, and methanol by distilling in the presence of a water entraining compound, especially methyl propionate or methyl methacrylate. The product contains substantially... | 03/04/2008 |
| 7316737 | Amine recovery apparatus and decarbonation apparatus having same An amine recovery apparatus includes a carbon dioxide absorption section and plural water washing sections. The carbon dioxide absorption section brings the exhaust gas into vapor-liquid contact with an absorbing solution containing an amine compound and produces de... | 01/08/2008 |
| 7288140 | Wet process gas treatment apparatus In a wet-process gas treatment method of treating an acid gas by using at least two treating columns connected in series, a ratio of the concentration of an acid gas at an outlet to a concentration of the acid gas at an inlet of a first treating column is set higher... | 10/30/2007 |
| 7189282 | Method for eliminating mercaptan from crude gas This invention relates to a process for cleaning gas, in particular hydrocarbonaceous gas such as e.g. natural gas, which is contaminated with sulfur in the form of H2S and mercaptans as well as CO2. To remove the undesired sulfur-contai... | 03/13/2007 |
| 7077884 | Hydrogen sulfide scrubber using polymeric amine and associated methods A hydrogen sulfide scrubber includes first and second scrubber tanks with scrubber media contained therein. Scrubbing solution circulators each include a dispenser for dispensing scrubbing solution into contact with the scrubber media, a sump for collecting the scru... | 07/18/2006 |
| 7048777 | Method and apparatus for removing waxy materials from a gas stream The invention uses both heating and cooling zones to prevent the precipitation of solids onto equipment surfaces until they are efficiently removed from the gas phase via one or more heat exchangers. Each heat exchanger may be regenerated to melt off the solids when... | 05/23/2006 |
| 7025809 | Dual-type air purification system An air purification system for treating pollutants in a gas stream. The air purification system includes a housing with a plurality of nozzles, an acidic water supply device and an alkaline water supply device. The housing introduces the gas stream. The acidic water... | 04/11/2006 |
| 7018450 | Natural gas deacidizing method The natural gas is successively contacted in column CA with a relatively methanol-rich solvent flowing in through line 4, then with a relatively poor solvent flowing in through line 9. The acid gas-containing solvent recovered through line 3 at ... | 03/28/2006 |
| 7014684 | Method for the treatment of waste gas from a cellulose plant A process and a device for cleaning waste gas from pulp production, especially for cleaning waste gases from a bleaching reactor. Aerosols contained in the waste gas are removed and the gaseous impurities are scrubbed out of the waste gas by a scrubbing liquid. ... | 03/21/2006 |
| 7005529 | Process for the separation of an aqueous mixture of trioxane and formaldehyde and corresponding applications Process for the separation of an aqueous mixture of trioxane and formaldehyde and corresponding applications. The aqueous trioxane and formaldehyde mixture has first trioxane:formaldehyde ratio. The process includes the steps of reacting the aqueous mixture of triox... | 02/28/2006 |
| 6966548 | Vapor/liquid contacting cyclone with secondary vanes This invention is directed to a cyclonic vapor/liquid contacting device and distillation or related mass transfer or heat transfer processes employing its use, such as fluid catalytic cracking. Liquid feed is introduced near the floor of the cyclone via downcomer or... | 11/22/2005 |
| 6946021 | Air cleaner An air cleaner for cleaning air and for providing sterilization and deodorization effects, includes an air-liquid contact part, for bringing the air into contact with a water screen formed by spraying, using nozzles, pressurized circulating water, and for removing f... | 09/20/2005 |
| 6942840 | Method for removal and stabilization of mercury in mercury-containing gas streams The present invention is directed to a process and apparatus for removing and stabilizing mercury from mercury-containing gas streams. A gas stream containing vapor phase elemental and/or speciated mercury is contacted with reagent, such as an oxygen-containing oxid... | 09/13/2005 |
| 6884282 | Method and system for increasing the absorption selectivity of H2S from a gas containing CO2 and H2S A system and a method for increasing the selectivity of H2S absorption in an aqueous amine treating processes for streams containing high CO2:H2S ratio mixtures in an absorption column by maintaining the temperature in the absorption... | 04/26/2005 |
| 6821317 | Wet-process gas treatment method and wet-process gas treatment apparatus In a wet-process gas treatment method of treating an acid gas by using at least two treating columns connected in series, a ratio of the concentration of an acid gas at an outlet to a concentration of the acid gas at an inlet of a first treating column is set higher... | 11/23/2004 |
| 6773582 | Drinking water treatment system including hydrogen sulfide scrubber using triazine compound and associated methods A drinking water treatment system includes a pump for pumping water from an aquifer, an aerator connected downstream from the pump for generating an outlet water flow and a hydrogen sulfide-containing gas flow, and a hydrogen sulfide scrubber for scrubbing the hydro... | 08/10/2004 |
| 6759018 | Method for point-of-use treatment of effluent gas streams A system for abating undesired component(s) from a gas stream containing same, such as halocompounds, acid gases, silanes, ammonia, etc., by scrubbing of the effluent gas stream with an aqueous scrubbing medium. Halocompounds, such as fluorine, fluorides, perfluoroc... | 07/06/2004 |
| 6726748 | Method of converting a downflow/upflow wet flue gas desulfurization (WFGD) system to an upflow single-loop WFGD system A method of reducing the pressure drop in a downflow/upflow wet flue gas desulfurization (WFGD) system and of improving overall sulfur dioxide collection efficiency by converting the downflow/upflow WFGD system to an upflow single-loop WFGD system. The method includ... | 04/27/2004 |
| 6719829 | Venturi and methods for particulate removal with counterflow sprays The present invention provides improved systems and methods for scrubbing gas with a venturi scrubber. A dual spray venturi scrubber, in which a scrubbing liquid is injected upstream and counter to the flow through the venturi, provides for improved scrubbing perfor... | 04/13/2004 |
| 6666908 | Process for deacidizing a gas with washing of the hydrocarbons desorbed upon regeneration of the solvent Within the scope of a process using two absorption sections for treating a natural gas containing CO2 and/or H2 S, as well as mercaptans, COS and/or CS2, the present invention aims to wash the gaseous hydrocarbons desorbed... | 12/23/2003 |
| 6645273 | Method for removing impurity contents in the air A method for removing impurity substances in air flowing in a flow passage includes filtering the air in a first filter for removing solid substances; cooling the air in a first cooler to not higher than its dew-point temperature; capturing gaseous substa... | 11/11/2003 |
| 6623546 | Method and installation for chemical purification of vapor in a dehydrator with mechanical vapor compression According to the invention, the vapor is taken from the condensation chamber of the dehydrator and, prior to being compressed and at a temperature substantially equal to 100° C., it is caused to pass in succession through a series of purifiers, and in ea... | 09/23/2003 |
| 6551382 | Hot-humid/cold gas scrubbing process and apparatus Effluent gas cleaning process and apparatus for effectively removing particulates in the 0.01 micron to 0.1 micron diameter range, and for removing water-soluble gaseous contaminants, by first bringing the effluent to a relatively high temperature and hum... | 04/22/2003 |
| 6511529 | Method of reducing the number of pollutants in a gas flow and device for carrying out said method The object of the invention is to provide a method of treating wash water resulting from the scrubbing of process gases in smelting plants, according to which method the wash water is brought into intimate contact with the process gas and is circulated wh... | 01/28/2003 |
| 6506348 | Heavy oil fired boiler exhaust gas treatment apparatus There is provided a heavy oil fired boiler exhaust gas treatment apparatus which removes soot and dust and SO3 in the heavy oil fired boiler exhaust gas efficiently at a low cost without using an excessively large apparatus. The treatment appar... | 01/14/2003 |
| 6458188 | Method and means for air filtration A method of filtering an air or gas stream utilizes a liquid, such as water, to saturate the gas stream. A sufficient quantity of water is presented to the gas stream to saturate the gas stream and knock particulate matter out of the gas stream. The gas s... | 10/01/2002 |
| 6333003 | Treatment apparatus, treatment method, and impurity removing apparatus A treatment apparatus for treating a substrate in an isolated treatment space in an air-conditioned clean room, comprising a removing unit including a plurality of removing sections for recovering at least some of air in the treatment space and removing i... | 12/25/2001 |
| 6325983 | Nox scrubbing system and method A treatment system for process exhaust streams containing NOx. The system includes a plurality of sequential scrubbing assemblies that collectively receive and contact a process exhaust stream containing NOx and a water stream to produce a product exhaust... | 12/04/2001 |
| 6287367 | High-capacity vapor/liquid contacting device This concept concerns a vapor/liquid contacting tray which is useful in distillation and related mass transfer or heat transfer applications where liquid flows down and gas or vapor flows up through a vessel. In this device, the perforated area is relativ... | 09/11/2001 |
| 6235961 | Process for pretreating cracked gas before caustic tower treatment in ehtylene plants An inline, high-shear mixer is provided in a cracked gas stream upstream of a caustic tower in an ethylene production unit. Spent caustic is withdrawn from the bottom of the caustic tower and pumped to the mixer, where the spent caustic mixes with and abs... | 05/22/2001 |
| 6221133 | Fluid separation packing The invention provides a cellular packing including a vapor/liquid separation device that can be stacked vertically with minimum wasted space. The packing uses static vanes in each cell to direct the liquid component of a vapor/liquid mixture to exit slot... | 04/24/2001 |
| 6183540 | Method and apparatus for removing aromatic hydrocarbons from a gas stream prior to an amine-based gas sweetening process A method is provided for the extraction of aromatic hydrocarbons, including benzene, toluene, ethylbenzene, and xylene, collectively known as "BTEX," in a continuous process utilizing a glycol contactor to cause absorption of the BTEX upstream of an amine... | 02/06/2001 |
| 6179901 | Apparatus and method for producing HF from phosphate rock Hydrogen fluoride production apparatus removes phosphate rock dust from a hot gas mixture exhausted from a phosphate rock defluorination kiln; cools the hot gas mixture in a heat exchanger to a low enough temperature that it can be brought into contact wi... | 01/30/2001 |
| 6063163 | Co-current and counter-current gas dehydration system According to the present invention, an inexpensive co-current and counter-current gas dehydration system, contactor apparatus, and operating method is provided which does not result in a need to clean equipment on a frequent basis. More specifically, ther... | 05/16/2000 |
| 6019819 | Apparatus and method for extracting heat from contaminated waste steam Disclosed is a contaminated waste steam heat recovery apparatus 10 and method therefore which includes a primary condensing unit 38, a low pressure water washing unit 26, a liquid to liquid heat exchanger 36 and a vent fan 31. Waste gas is ducted from fry... | 02/01/2000 |
