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Al-Ghamdi

Abdullah Saeed Al-Ghamdi, Jeddah SA

Patent application number	Description	Published
20100326538	Water recirculation system - The water recirculation system provides for the controlled recirculation of water between an overhead water tank, which is mounted on the roof of a building, and an underground water tank. The overhead tank has a feed outlet, a recirculation outlet, and a recirculation inlet formed therein. A first conduit is provided, with a lower end thereof being positioned within the underground tank. A pump draws water from within the underground tank, which is delivered to a second conduit. An upper end thereof is in fluid communication with the overhead tank. A third conduit is further provided, having an upper end in communication with the overhead tank and a lower end in communication with the underground tank. A programmable valve selectively controls water flow out of the overhead tank, which is delivered, via the third conduit, to the underground tank by gravity.	12-30-2010
20100326908	Wastewater treatment system - The wastewater treatment system includes a tank having first and second partition walls dividing the tank into first, second and third chambers. An inlet port is formed through the first chamber and an outlet port is formed through the third chamber. A first port is formed through the first partition wall for controlling fluid flow from the first chamber to the second chamber, and a second port is formed through the second partition wall for controlling fluid flow from the second chamber to the third chamber. Oils and sludge are removed from the wastewater in the first chamber. Anaerobic bacteria within the second chamber then removes organic material from the water. The water is stored in the third chamber is irradiated by germicidal ultraviolet light before discharge from the third chamber.	12-30-2010

Ahmed Abdullah S. Al-Ghamdi, Jeddah SA

Patent application number	Description	Published
20100321147	Vanadium sesquioxide nanocomposite - The vanadium sesquioxide nanocomposite is useful for applications in thermistors, current switching devices, static charge dissipation devices, and electromagnetic shielding. Vanadium sesquioxide nanoparticles are produced using a sol-gel process that results in a V	12-23-2010
20110021360	Superconductive nanocomposite - The superconductive nanocomposite is a composition formed by nanoparticles of a high temperature superconductor blended with a polymer matrix containing natural rubber and polyethylene. The high temperature superconductor is preferably a bismuth-based superconductor (BSCCO) having a particle size of about 21 nm, but may be any other high temperature or Type II ceramic, metal oxide superconductor. The superconductor nanoparticles comprise about 15% of the weight of natural rubber in the composition. The polyethylene is preferably low density polyethylene and may comprise between 0% up to about 40% of the weight of natural rubber in the composition. The nanocomposite may be prepared by blending the components and roll milling the rubber. Depending upon the percentage of polyethylene present in the matrix, the nanocomposite has useful applications as a double thermistor (both positive and negative coefficients of electrical resistivity), for antistatic charge dissipation, and for electromagnetic shielding in the microwave region.	01-27-2011

Attieh Al-Ghamdi, Riyadh SA

Patent application number	Description	Published
20100234486	Synthesis of solid state dye laser by y-irradiation polymerization method - A Solid state dye laser (SSDL) mixture of rhodamine B (RB) dissolved in ethylene glycol (EG) and added in a 2-hydroxyethyl-methacrylate (HEMA) methyl-methacrylate (MMA) copolymerized by gamma irradiation method (GIM).	09-16-2010

Mohammed Abdullah Al-Ghamdi, Dhahran SA

Patent application number	Description	Published
20110220546	HIGH QUALITY MIDDLE DISTILLATE PRODUCTION PROCESS - A hydrocarbon feedstock is hydrocracked in a hydrocracking zone and the effluent is fractioned to recover a light fraction, a middle fraction containing aromatic compounds and a heavy fraction. The heavy fraction is recycled to the hydrocracking zone for further hydrocracking. The middle fraction is introduced to an aromatic separation zone. A product stream is recovered from the aromatic separation zone comprising a middle fraction having a reduced content of aromatic compounds as compared to the middle fraction recovered from the fractionator. Aromatics from the aromatic separation zone are recycled to the hydrocracking zone for further hydrogenation and cracking.	09-15-2011

Sameer A. Al-Ghamdi, Dhahran SA

Patent application number	Description	Published
20090145807	PROCESS TO PRODUCE LOW SULFUR CATALYTICALLY CRACKED GASOLINE WITHOUT SATURATION OF OLEFINIC COMPOUNDS - The invention relates to a process for the desulfurization of a gasoline fraction with high recovery of olefins and reduced loss of Research Octane Number (RON). A petroleum fraction is contacted with hydrogen and a commercially available hydrodesulfurization catalyst under mild conditions with to remove a first portion of the sulfur present, and is then contacted with an adsorbent for the removal of additional sulfur.	06-11-2009

Sameer Ali Al-Ghamdi, Dhahran SA

Patent application number	Description	Published
20090230026	Catalyst To Attain Low Sulfur Gasoline - This invention relates to a hydrodesulfurization catalyst, a method for preparing the catalyst, and a method for the preparation of low sulfur gasoline fuel with minimal loss of RON. The catalyst particles include a group VIB metal and a support material having relatively high surface area, and optionally includes one or more group VIIIB metal. The method for preparing the catalyst allows for greater loading of the active metal species on the surface of the support material under aqueous reaction conditions.	09-17-2009