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Bahamdan
Ahmad A. Bahamdan, Dhahran SA
| Patent application number | Description | Published |
|---|---|---|
| 20080281000 | Hydrophobic Polysaccharide Derivatives - Novel cross-linked gels comprised of alkoxyetheramides grafted to polysaccharides that have superior viscosity properties have been made. By controlling the chain length of the alkoxyetheramides and the hydrophobic nature of the gel, these materials are ideal for many uses such as in hydraulic fracturing of oil-bearing geological formations, in the paint and dye industries, as dispersants, in personal care products and for carriers in controlled drug delivery. | 11-13-2008 |
Ahmad Abdullah Bahamdan, Dhahran SA
| Patent application number | Description | Published |
|---|---|---|
| 20100264065 | MEMBRANE DESULFURIZATION OF LIQUID HYDROCARBON FEEDSTREAMS - The process of the present invention is directed to the desulfurization of a sulfur-containing unrefined hydrocarbon stream with a membrane separation apparatus, where sulfur compounds are concentrated in a sulfur-rich stream on a permeate side of the membrane, and a sulfur-lean stream is recovered as a retentate. The sulfur-rich stream, which has a small volume relative to the original unrefined hydrocarbon stream, is conveyed to a subsequent desulfurization apparatus or system, such as a hydrotreating system, to recover the hydrocarbons associated with the organosulfur compounds. The stream desulfurized by conventional processes, such as hydrotreating, and the hydrocarbons desulfurized by the membrane separation apparatus may be combined to provide a low sulfur hydrocarbon effluent with minimal or no loss of the original volume. | 10-21-2010 |
Ahmad Abdullah Bahamdan, Dammam SA
| Patent application number | Description | Published |
|---|---|---|
| 20120132589 | SUPPORTED IONIC LIQUID MEMBRANE SYSTEM AND PROCESS FOR AROMATIC SEPARATION FROM HYDROCARBON FEEDS - A system and process for treating a hydrocarbon feed mixture containing aromatic compounds is provided to separate the at least one aromatic compound from the hydrocarbon feed stream is provided. A supported ionic liquid membrane, which is a microporous polymeric support containing ionic liquid in its pores, is used to selectively extract aromatics. The hydrocarbon feed mixture is directed to a retentate side of the supported ionic liquid membrane. A permeate stream is drawn from the permeate, side of the supported ionic liquid membrane, which is an aromatic-rich hydrocarbon stream. An aromatic-lean hydrocarbon stream, which is the retentate portion of the original hydrocarbon feed, remains on the retentate side of the supported ionic liquid membrane. | 05-31-2012 |
Ahmed Bahamdan, Dhahran SA
| Patent application number | Description | Published |
|---|---|---|
| 20110000823 | MEMBRANE DESULFURIZATION OF LIQUID HYDROCARBONS USING AN EXTRACTIVE LIQUID MEMBRANE CONTACTOR SYSTEM AND METHOD - The process of the present invention is directed to the desulfurization of a sulfur-containing hydrocarbon stream with a membrane contactor, where sulfur compounds are concentrated in a sulfur-rich stream on a permeate side of the membrane using an extractive liquid, and a sulfur-lean stream is recovered as a retentate. The sulfur-rich stream, which has a small volume relative to the original hydrocarbon stream, is conveyed to a recovery zone to recover extractive liquid, and the remaining hydrocarbon stream having an increased concentration of sulfur compounds is passed to a downstream desulfurization apparatus or system, such as a hydrotreating system, to recover the hydrocarbons associated with the organosulfur compounds. | 01-06-2011 |
Ahmed Abdullah Bahamdan, Dammam SA
| Patent application number | Description | Published |
|---|---|---|
| 20100222470 | ULTRAVIOLET (UV) RADIATION STABILITY AND SERVICE LIFE OF WOVEN FILMS OF POLYPROPYLENE (PP) TAPES FOR THE PRODUCTION OF JUMBO BAGS - This invention relates woven jumbo polypropylene bags manufactured from a polypropylene resin that includes a low molecular weight hindered amine light stabilizer, a high molecular weight hindered amine light stabilizer, a first antioxidant, and a second antioxidant. Also provided are methods for the preparation of woven jumbo polypropylene bags. | 09-02-2010 |
| 20110281982 | Ultraviolet (UV) Radiation Stability and Service Life of Woven Films of Polypropylene (PP) Tapes for the Production of Jumbo Bags - This invention relates woven jumbo polypropylene bags manufactured from a polypropylene resin that includes a low molecular weight hindered amine light stabilizer, a high molecular weight hindered amine light stabilizer, a first antioxidant, and a second antioxidant. Also provided are methods for the preparation of woven jumbo polypropylene bags. | 11-17-2011 |