Patents by Inventor Faizur Rahman
Faizur Rahman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220017436Abstract: Systems and methods for separating a mixture of olefinic and paraffinic C4 components are disclosed. The systems and methods include adsorptive equipment and adsorptive processes for separating components from the mixture.Type: ApplicationFiled: December 17, 2019Publication date: January 20, 2022Applicant: SABIC Global Technologies B.V.Inventors: Mohammed ALDOSSARY, Mohammed Nadim SHAIK, Khalid A. AL-MAJNOUNI, Ahmed ALZENAIDI, Faizur RAHMAN, Arudra PALANI, Sachio ASAOKA, Mohammad Ahmed AL-YAMI, Uwais BADURUTHAMAL
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Patent number: 10521208Abstract: A mechanism for generating optimized native code for a program having dynamic behavior uses a static analysis of the program to predict the likelihood that different elements of the program are likely to be used when the program executes. The static analysis is performed prior to execution of the program and marks certain elements of the program with confidence indicators that classify the elements with either a high level of confidence or a low level of confidence. The confidence indicators are then used by an ahead-of-time native compiler to generate native code and to optimize the code for faster execution and/or a smaller-sized native code.Type: GrantFiled: June 23, 2017Date of Patent: December 31, 2019Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC.Inventors: Morgan Asher Brown, David Charles Wrighton, Mei-Chin Tsai, Shah Mohammad Faizur Rahman, Yi Zhang, Ian M. Bearman, Erdembilegt Janchivdorj, David Adam Hartglass, David Mitford Gillies
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Publication number: 20190256383Abstract: A desalination cell which works with flat membranes for water purification purposes. A feed fluid is stirred on a feed side of the membrane to minimize cake formation. A purified liquid is formed on the permeate side of the membrane, and a reject fluid formed on the feed side of the membrane. When thick ceramic membranes are used, the desalination cell can be adapted to have a sealing gasket around the circumference of the membrane to prevent the feed fluid from by-passing the membrane and contaminating the purified fluid.Type: ApplicationFiled: May 3, 2019Publication date: August 22, 2019Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Faizur RAHMAN, Tahar LAOUI
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Publication number: 20180373515Abstract: A mechanism for generating optimized native code for a program having dynamic behavior uses a static analysis of the program to predict the likelihood that different elements of the program are likely to be used when the program executes. The static analysis is performed prior to execution of the program and marks certain elements of the program with confidence indicators that classify the elements with either a high level of confidence or a low level of confidence. The confidence indicators are then used by an ahead-of-time native compiler to generate native code and to optimize the code for faster execution and/or a smaller-sized native code.Type: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Inventors: MORGAN ASHER BROWN, DAVID CHARLES WRIGHTON, MEI-CHIN TSAI, SHAH MOHAMMAD FAIZUR RAHMAN, YI ZHANG, IAN M. BEARMAN, ERDEMBILEGT JANCHIVDORJ, DAVID ADAM HARTGLASS, DAVID MITFORD GILLIES
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Publication number: 20170121189Abstract: A desalination cell which works with flat membranes for water purification purposes. A feed fluid is stirred on a feed side of the membrane to minimize cake formation. A purified liquid is formed on the permeate side of the membrane, and a reject fluid formed on the feed side of the membrane. When thick ceramic membranes are used, the desalination cell can be adapted to have a sealing gasket around the circumference of the membrane to prevent the feed fluid from by-passing the membrane and contaminating the purified fluid.Type: ApplicationFiled: October 29, 2015Publication date: May 4, 2017Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Faizur Rahman, Tahar Laoui
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Publication number: 20150144556Abstract: The antiscalant compound is a dianionic polyelectrolyte (DAPE), namely, poly[disodium 3-(N,N-diallylamino)propanephosphonate]. The cationic polyelectrolyte (CPE) polydiallyl(diethylphosphonato)propylammonium chloride is synthesized by cyclopolymerization of the monomer. The CPE contains a pendant having a three-carbon spacer separating the diethylphosphonate and NH+. Upon acidic hydrolysis of the phosphonate esters, the CPE was converted into a pH-responsive polyzwitterionic acid (PZA), poly[3-(N,N-diallylammonio)propanephosphonic acid], which was converted to DAPE poly[disodium 3-(N,N-diallylamino)propanephosphonate] and to a zwitterionic/anionic polyelectrolyte (ZAPE) poly[sodium 3-(N,N-diallylammonio)propanephosphonate]. The solution properties of the polymers were correlated to the structurally similar polyzwitterion (PZ) having monoethylphosphonate and NH+ groups.Type: ApplicationFiled: November 26, 2013Publication date: May 28, 2015Applicants: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MENERALSInventors: SHAIKH ASROF ALI, IZZAT WAJIH KAZI, FAIZUR RAHMAN
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Patent number: 8623781Abstract: The oxidative dehydrogenation of propane provides a highly selective catalyst for the oxidative dehydrogenation of propane to propylene, and a process for preparing the catalyst. The catalyst is a mixed metal oxides catalyst of the general formula MoaVbOx, where the molar ratio of molybdenum to vanadium is between 1:1 and 9:1 (a:b is between 0.5:0.5 and 0.9:0.1) and x is determined according to the oxidation state of the cations present. The catalyst is prepared by mixing the metals by sol-gel technique, heating the gel to dry the mixed oxides, further heating the dried product to induce auto-combustion, washing the product with isopropyl alcohol, and drying with a supercritical CO2 dryer. Oxidative dehydrogenation is carried out by contacting a stream of propane gas with the bulk mixed metal oxides catalyst at a temperature between 350° C. and 550° C. Propylene selectivity of 100% is reached at conversion rates between 1.9% and 4.8%.Type: GrantFiled: June 28, 2011Date of Patent: January 7, 2014Assignee: King Fahd University of Pretroleum and MineralsInventors: Shakeel Ahmed, Hassan S. Alasiri, Faizur Rahman, Adnan M. J. Al-Amer
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Patent number: 8609568Abstract: The catalyst for oxidative dehydrogenation of propane to propylene includes vanadium and aluminum incorporated into the framework of a mesoporous support, viz., MCM-41, to form V—Al-MCM-41, and nickel impregnated onto the walls of the mesoporous support. Nickel loading is preferably in the range of 5 to 15% by weight of the catalyst. A process for the production of propylene from propane includes steps of placing the catalyst in a fixed bed reactor, introducing a flow of feedstock in a propane:oxygen:nitrogen ratio of about 6:6:88 by volume, maintaining the reactor at atmospheric pressure and in a temperature range of about 400 to 550° C., collecting the product, and separating propylene from the product. The process achieves propane conversion between about 6 to 22%, and a selectivity for propylene between about 22 and 70%, depending upon percent nickel content and temperature of the reaction.Type: GrantFiled: October 4, 2010Date of Patent: December 17, 2013Assignee: King Fahd University of Petroleum and MineralsInventors: Shakeel Ahmed, Faizur Rahman, Uwais Baduruthamal
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Patent number: 8596110Abstract: The device for testing reverse osmosis membranes provides for the quick and efficient testing of the transport properties of reverse osmosis membranes at a fixed pressure over a fixed period of time. The device includes a first chamber adapted for receiving a volume of de-ionized water and a second chamber adapted for receiving a volume of brine. In use, a reverse osmosis membrane to be tested is clamped between the first and second chambers and a pressurized inert gas, such as gaseous nitrogen, is injected into the second chamber at known pressure to initiate reverse osmosis transport. The transport is carried out at the known pressure for a fixed period of time, after which the concentration of brine volume of water in the first chamber is measured.Type: GrantFiled: March 14, 2011Date of Patent: December 3, 2013Assignee: King Fahd University of Petroleum and MineralsInventor: Faizur Rahman
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Publication number: 20130006030Abstract: The oxidative dehydrogenation of propane provides a highly selective catalyst for the oxidative dehydrogenation of propane to propylene, and a process for preparing the catalyst. The catalyst is a mixed metal oxides catalyst of the general formula MoaVbOx, where the molar ratio of molybdenum to vanadium is between 1:1 and 9:1 (a:b is between 0.5:0.5 and 0.9:0.1) and x is determined according to the oxidation state of the cations present. The catalyst is prepared by mixing the metals by sol-gel technique, heating the gel to dry the mixed oxides, further heating the dried product to induce auto-combustion, washing the product with isopropyl alcohol, and drying with a supercritical CO2 dryer. Oxidative dehydrogenation is carried out by contacting a stream of propane gas with the bulk mixed metal oxides catalyst at a temperature between 350° C. and 550° C. Propylene selectivity of 100% is reached at conversion rates between 1.9% and 4.8%.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SHAKEEL AHMED, HASSAN S. ALASIRI, FAIZUR RAHMAN, ADNAN M.J. AL-AMER
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Publication number: 20120234083Abstract: The device for testing reverse osmosis membranes provides for the quick and efficient testing of the transport properties of reverse osmosis membranes at a fixed pressure over a fixed period of time. The device includes a first chamber adapted for receiving a volume of de-ionized water and a second chamber adapted for receiving a volume of brine. In use, a reverse osmosis membrane to be tested is clamped between the first and second chambers and a pressurized inert gas, such as gaseous nitrogen, is injected into the second chamber at known pressure to initiate reverse osmosis transport. The transport is carried out at the known pressure for a fixed period of time, after which the concentration of brine volume of water in the first chamber is measured.Type: ApplicationFiled: March 14, 2011Publication date: September 20, 2012Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventor: FAIZUR RAHMAN
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Publication number: 20120083641Abstract: The catalyst for oxidative dehydrogenation of propane to propylene includes vanadium and aluminum incorporated into the framework of a mesoporous support, viz., MCM-41, to form V—Al-MCM-41, and nickel impregnated onto the walls of the mesoporous support. Nickel loading is preferably in the range of 5 to 15% by weight of the catalyst. A process for the production of propylene from propane includes steps of placing the catalyst in a fixed bed reactor, introducing a flow of feedstock in a propane:oxygen:nitrogen ratio of about 6:6:88 by volume, maintaining the reactor at atmospheric pressure and in a temperature range of about 400 to 550° C., collecting the product, and separating propylene from the product. The process achieves propane conversion between about 6 to 22%, and a selectivity for propylene between about 22 and 70%, depending upon percent nickel content and temperature of the reaction.Type: ApplicationFiled: October 4, 2010Publication date: April 5, 2012Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SHAKEEL AHMED, FAIZUR RAHMAN, UWAIS BADURUTHAMAL
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Patent number: 6908876Abstract: The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.Type: GrantFiled: April 16, 2003Date of Patent: June 21, 2005Assignee: Saudi Basic Industries CorporationInventors: Muhammad Atiqullah, Akhlaq Moman, Muhammad Naseem Akhtar, Atieh Abu-Raqabah, Syriac J. Palackal, Muhammad A. Al-Saleh, Faizur Rahman, Muhammad Ibrahim, Javaid H. Khan
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Publication number: 20040209766Abstract: The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.Type: ApplicationFiled: April 16, 2003Publication date: October 21, 2004Inventors: Muhammad Atiqullah, Akhlaq Moman, Muhammad Naseem Akhtar, Atieh Abu-Raqabah, Syriac J. Palackal, Muhammad A. Al-Saleh, Faizur Rahman, Muhammad Ibrahim, Javaid H. Khan