Utilizing Tubular Or Coated Electrode Patents (Class 205/501)
-
Patent number: 8608916Abstract: An electrolytic cell comprising an electrolysis vessel for receiving a liquid electrolyte that fills the vessel to a predetermined level, electrodes for passing an electric current through the electrolyte, a vent for allowing gases produced by the electrolytic process to leave the vessel and an air inlet means located substantially adjacent to the predetermined level for directing air into the vessel at a predetermined rate.Type: GrantFiled: September 24, 2007Date of Patent: December 17, 2013Assignee: Severn Trent Services LimitedInventor: Julian Routh
-
Patent number: 8147673Abstract: A system and process for de-halogenating ballast water before releasing the ballast water from the vessel. In one embodiment, the system comprises a means for measuring the halogen content of the ballast water, a reducing agent source in fluid communication with the ballast water, and a means for controlling the amount of reducing agent supplied to the ballast water. In one aspect, the means for measuring the halogen content comprises one or more oxidation/reduction potential analyzers. In another embodiment, the system comprises one or more hypochlorite electrolytic cells for generating hypochlorite to treat the ballast water. One embodiment of the process for de-halogenating ballast water comprises measuring the oxidation/reduction potential of the ballast water and adding one or more reducing agents to the ballast water to de-halogenate the ballast water in response to the measured oxidation/reduction potential.Type: GrantFiled: June 1, 2007Date of Patent: April 3, 2012Assignee: Severn Trent De Nora, LLCInventors: Harold E. Childers, II, Randolto Fernandez, Rudolf C. Matousek, James B. Moore, David W. Hill
-
Patent number: 7361276Abstract: A method of enhancing the concentration of a first inorganic compound in a first aqueous solution of a first process of a heavy chemical plant, the method comprising (a) feeding the first solution having the first compound at a first concentration and a first water vapor pressure to an osmotic membrane distillation means comprising a hydrophobic, gas and water vapor permeable membrane separating (i) a first chamber for receiving the first solution, from (ii) a second chamber for receiving a receiver feed aqueous solution having a second water vapor pressure lower than the first water vapor pressure; (b) feeding the receiver aqueous feed solution to the second chamber as to effect transfer of water vapor through the membrane from the first chamber to the second chamber, and to produce (i) a resultant first solution having a second concentration of the first compound greater than the first concentration and (ii) a diluted receiver feed aqueous solution; and (c) collecting the resultant first solution.Type: GrantFiled: June 1, 2005Date of Patent: April 22, 2008Assignee: Aker Kvaemer Canada Inc.Inventors: Zbigniew Twardowski, Thomas S. Drackett, Dmitri Bessarabov, Peter E. Fetissoff
-
Patent number: 7342479Abstract: Chemical sensors for detecting analytes in a fluid is disclosed. The chemical sensors include chemically sensitive resistors that utilize carbon nanotubes as a chemically sensitive element. The disclosed sensors additionally utilize polymers which selectively alter or inhibit the chemical sensitivity of the carbon nanotubes. Methods of preparing the sensors as well as methods of their use are also disclosed.Type: GrantFiled: April 28, 2004Date of Patent: March 11, 2008Assignee: Eikos, Inc.Inventors: Paul J. Glatkowski, David H. Landis, Jr., Joseph W. Piché
-
Publication number: 20020139689Abstract: An electrode having an electrocatalytic surface or coating composed of a mixture with iridium oxide is used in a reversible polarity electrolytic cell to selectively produce an alkali metal hypohalite, preferably sodium hypochlorite, from brine made from hard water. The mixture also may have a platinum group metal oxide and a valve metal oxide, preferably, ruthenium oxide and titanium oxide respectively.Type: ApplicationFiled: February 1, 2001Publication date: October 3, 2002Inventors: Vadim Zolotarsky, Irina A. Ivanter, Mark J. Geusic
-
Patent number: 6428677Abstract: A chlorination system in which brine is converted to sodium hypochlorite by an electrolyser. Brine (1) fed to the electrolyser (3) is passed through a filter (2) which is capable of adsorbing bromine or hypobromous acid. Some of the sodium hypochlorite produced in an electrolyser (3) is fed back to a point in the brine feed upstream of the filter (2) such that any bromide in the brine is oxidized to bromine or hypobromous acid and therefore adsorbed by the filter (2).Type: GrantFiled: March 20, 1998Date of Patent: August 6, 2002Assignee: United States Filter CorporationInventors: David MacDonald Bonnick, Roger Roydon Ford
-
Publication number: 20010022275Abstract: The invention relates to a construction for ventilation of hydrogen gas comprising at least a first metallic layer (1), sensitive to hydrogen embrittlement, a second (2) metallic layer, and a mesh (4), wherein the first layer (1) is joined to the second layer (2), and said mesh (4), forming venting channels (5) through which channels (5) hydrogen can be vented, is joined to, and in between, said first (1) and second (2) metallic layers. The invention further concerns a method for production thereof.Type: ApplicationFiled: December 21, 2000Publication date: September 20, 2001Inventors: Bo Hakansson, Eduardo Fontes, Magnus Davidsson, Hans-Goran Sundstrom, Lars Blomgren, Arne Carlsson
-
Method and apparatus for optimizing electrolytic production of a halogen in a water treatment system
Patent number: 5993669Abstract: Method and apparatus for optimizing the electrolytic production of a halogen in a water treatment system having a halogen salt dissolved therein. The flow rate to the electrolytic cell is maintained below a predetermined maximum beyond which the remaining flow is diverted from the cell. The flow going to the cell is monitored for flow rate, water temperature and conductivity and the operation of the electrolytic cell is adjusted in response.Type: GrantFiled: September 28, 1998Date of Patent: November 30, 1999Assignee: Autopilot Systems, Inc.Inventor: Paul F. Fulmer -
Patent number: 5753098Abstract: An electrolyzer assembly has an outer, cylindrical dielectric electrolyzer housing member having a top, bottom, and cylindrical side wall. In one embodiment, the housing member has a sealed top, an open bottom for electrolyte entry, and apertures through the side wall near the sealed top permitting flow of electrolyte through the apertures. A cylindrical anode and cathode pair is situated inside the housing member. The cathode is positioned concentrically within the anode. Electrolyte flows in the space between anode and cathode. The anode is spaced apart from the side wall, providing an electrolyte flow path through the resulting cylindrically-shaped space. Electrical connections through the top of the housing member extend downwardly therein to electrical connection elements projecting upwardly from the electrode pair. The assembly provides for ease of cleaning, as well as ease of refurbishing, and operates efficiently and economically in both forced and unforced flow conditions.Type: GrantFiled: April 22, 1996Date of Patent: May 19, 1998Assignee: Excel Technologies International Corp.Inventors: James W. Bess, Jr., Charles W. Clements, Sr., John F. Newman, III