Patents by Inventor Mohammad Ashraf
Mohammad Ashraf 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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Patent number: 9675971Abstract: A catalyst system and a process for methanol to light olefin conversion with enhanced selectivity towards propylene. The catalyst system comprises a honeycomb monolith catalyst support coated with aluminosilicate nanozeolite catalysts on the edges and inside the channels of the support structure. The aluminosilicate nanozeolite catalysts have not been pre-modified with a promoter metal. The catalyst system gives higher hydrothermal stability to the catalyst compared to randomly packed pellet catalysts and allows methanol to be converted to predominantly propylene at a low temperature, with decreased selectivity towards C2, higher olefins and paraffinic hydrocarbons.Type: GrantFiled: March 9, 2016Date of Patent: June 13, 2017Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammad Ashraf Ali, Shakeel Ahmed
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Patent number: 9533293Abstract: A hydrocracking catalyst, containing a USY zeolite modified by treatment with an organic acid to remove aluminum, an alumina binder, two or more metals selected from metals of Groups VIB and VIII, and cerium in the range of 0.1 to 5.0 wt %. A method of making the hydrocracking catalyst, whereby a USY zeolite is treated with an organic acid to remove aluminum from the zeolite structure and subsequently impregnating with a rare earth metal of the Lanthanide series to form a modified USY zeolite. The modified USY zeolite is mixed with alumina comprising a peptizing agent and impregnated with two or more metals selected from metals of Groups VIB and VIII.Type: GrantFiled: April 16, 2014Date of Patent: January 3, 2017Assignee: King Fahd University of Petroleum and MineralsInventors: Shakeel Ahmed, Mohammad Ashraf Ali
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Publication number: 20160367946Abstract: Upon light irradiation, a dye sensitized photoactive surfaces can undergo hydrophobic to hydrophilic conversion in both in air and oil environments.Type: ApplicationFiled: June 19, 2016Publication date: December 22, 2016Applicant: Massachusetts Institute of TechnologyInventors: Kripa K. VARANASI, Gareth H. McKINLEY, Gibum KWON, Mohammad Ashraf GONDAL
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Patent number: 9505635Abstract: The wastewater filtration system and method relates to systems and methods that use Ruba Al-Khali Saudi sand as the filtration media in systems for treating industrial wastewater. Ruba Al-Khali Saudi sand is effective in removing organic dyes, particularly rhodamine B, from the wastewater. The method includes bringing wastewater having an organic dye constituent into contact with the Saudi sand for a period of time sufficient to adsorb the organic dye. The system may include a batch reactor, such as a fixed bed or moving bed reactor, or a continuous flow reactor, such as a column reactor. When a batch reactor is used, the method may benefit from shaking or agitating the filtration media, particularly in the dark or under low ambient light conditions. The method may include regenerating the Saudi sand after use by heating the filtration media.Type: GrantFiled: December 22, 2014Date of Patent: November 29, 2016Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammed Ashraf Gondal, Xiaofeng Chang, Mohammad Ashraf Ali, Mohamed Abdulkader Dastageer, Syed M. Zubair, John H. Lienhard, V
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Publication number: 20160184812Abstract: A catalyst system and a process for methanol to light olefin conversion with enhanced selectivity towards propylene. The catalyst system comprises a honeycomb monolith catalyst support coated with aluminosilicate nanozeolite catalysts on the edges and inside the channels of the support structure. The aluminosilicate nanozeolite catalysts have not been pre-modified with a promoter metal. The catalyst system gives higher hydrothermal stability to the catalyst compared to randomly packed pellet catalysts and allows methanol to be converted to predominantly propylene at a low temperature, with decreased selectivity towards C2, higher olefins and paraffinic hydrocarbons.Type: ApplicationFiled: March 9, 2016Publication date: June 30, 2016Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammad Ashraf ALI, Shakeel AHMED
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Publication number: 20160114314Abstract: A catalyst system and a process for methanol to light olefin conversion with enhanced selectivity towards propylene. The catalyst system comprises a honeycomb monolith catalyst support coated with nanozeolite catalysts on the edges and inside the channels of the support structure. The nanozeolite catalysts have been pre-modified with metal. The catalyst system gives higher hydrothermal stability to the catalyst compared to randomly packed pellet catalyst and allows methanol to be converted to predominantly propylene at a low temperature, with decreased selectivity towards C2, higher olefins and paraffinic hydrocarbons.Type: ApplicationFiled: October 22, 2014Publication date: April 28, 2016Applicant: King Fahd University of Petroleum and MineralsInventors: Mohammad Ashraf ALI, Shakeel Ahmed
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Publication number: 20150298106Abstract: A hydrocracking catalyst, containing a USY zeolite modified by treatment with an organic acid to remove aluminum, an alumina binder, two or more metals selected from metals of Groups VIA and VIIIA, and cerium in the range of 0.1 to 5.0 wt %.Type: ApplicationFiled: April 16, 2014Publication date: October 22, 2015Applicant: King Fahd University of Petroleum and MineralsInventors: SHAKEEL AHMED, Mohammad Ashraf Ali
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Publication number: 20150175444Abstract: The wastewater filtration system and method relates to systems and methods that use Ruba Al-Khali Saudi sand as the filtration media in systems for treating industrial wastewater. Ruba Al-Khali Saudi sand is effective in removing organic dyes, particularly rhodamine B, from the wastewater. The method includes bringing wastewater having an organic dye constituent into contact with the Saudi sand for a period of time sufficient to adsorb the organic dye. The system may include a batch reactor, such as a fixed bed or moving bed reactor, or a continuous flow reactor, such as a column reactor. When a batch reactor is used, the method may benefit from shaking or agitating the filtration media, particularly in the dark or under low ambient light conditions. The method may include regenerating the Saudi sand after use by heating the filtration media.Type: ApplicationFiled: December 22, 2014Publication date: June 25, 2015Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: MOHAMMED ASHRAF GONDAL, XIAOFENG CHANG, MOHAMMAD ASHRAF ALI, MOHAMED ABDULKADER DASTAGEER, SYED M. ZUBAIR, JOHN H. LIENHARD, V
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Publication number: 20150174567Abstract: The hybrid photocatalyst for wastewater remediation is a composite of rhodamine B and BiOBr. The rhodamine B has a concentration between about 0.1 wt % and about 1 wt % of the overall photocatalyst. The hybrid photocatalyst is made by immersing a BiOBr semiconductor in an aqueous rhodamine B solution to form the hybrid photocatalyst by sorption of the rhodamine B by the BiOBr semiconductor. In use, the hybrid photocatalyst is added to wastewater containing at least one contaminant, such as methyl orange (sodium 4-[(4-dimethylamino)phenyldiazenyl]benzenesulfonate), to form a suspension of the hybrid photocatalyst and the at least one contaminant. The suspension is then exposed to visible to light to form a slurry containing a reaction mixture in the wastewater. The slurry is then filtered to remove the reaction mixture.Type: ApplicationFiled: December 22, 2014Publication date: June 25, 2015Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: MOHAMMED ASHRAF GONDAL, XIAOFENG CHANG, MOHAMMAD ASHRAF ALI, MOHAMED ABDULKADER DASTAGEER, SYED M. ZUBAIR, JOHN H. LIENHARD, V
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Patent number: 8785340Abstract: The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with H2 at 600° C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400° C., such as in hydrocracking.Type: GrantFiled: October 20, 2011Date of Patent: July 22, 2014Assignee: King Fahd University of Petroleum and MineralsInventors: Takuma Kimura, Mohammad Abdullah Al-Saleh, Halim Hamid Redhwi, Mohammad Ashraf Ali, Shakeel Ahmed, Masayuki Inui
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Patent number: 8653315Abstract: The multiple zeolite catalyst is a catalytic composition used to convert alkylaromatic hydrocarbons to BTX, particularly to commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VI of the Periodic Table of the Elements. The two zeolites have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt % molybdenum. The multiple zeolite catalyst may further be used to convert toluene to mixed xylene isomers, particularly with a ZSM-5:mordenite ratio of 2:1 by weight.Type: GrantFiled: November 28, 2012Date of Patent: February 18, 2014Assignee: King Fahd University of Petroleum and MineralsInventor: Mohammad A. Ashraf Ali
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Publication number: 20120040820Abstract: The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with H2 at 600° C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400° C., such as in hydrocracking.Type: ApplicationFiled: October 20, 2011Publication date: February 16, 2012Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: TOMOYUKI INUI (DECEASED), MASAYUKI INUI, TAKUMA KIMURA, MOHAMMAD ABDULLAH AL-SALEH, HALIM HAMID REDHWI, MOHAMMAD ASHRAF ALI, SHAKEEL AHMED
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Publication number: 20110303572Abstract: Improvements in a bottle or can identifying dimple. The dimples exist in a variety of locations on a bottle or can to increase the number of people that can consume a similar beverage. The dimples can exist in concentric lines, vertical lines or and/or in a spiral pattern around the container whereby increasing the quantity of dimples to include a complete alphabet and or numbers. The shape of the dimples ranges from rounded domes to triangular tips and also multi-faceted shapes to provide greater structural integrity to the depressed dimple. The dimples can change color when they are depressed to ensure the identification is present if the dimple is pushed out under carbonation pressure. The dimples are usable as a measuring tool to determine the amount of fluid within the container and are useable to determine if the fluid level has changed from tampering.Type: ApplicationFiled: June 15, 2010Publication date: December 15, 2011Inventor: MOHAMMAD ASHRAF RAJPOOT
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Publication number: 20110011728Abstract: The system and method for conversion of molecular weights of fluids includes an elongate metallic pipe. A fluid is caused to flow through the pipe. A center electrode is mounted within the pipe coaxially with the pipe axis and the flow direction, the electrode being insulated from the pipe wall. The center electrode and the pipe wall are connected to the terminals of a voltage source to create an electric field extending radially between the center electrode and the pipe wall. A source of gamma radiation positioned either within the center electrode or external to the pipe directs gamma rays transverse to the direction of fluid flow. The combined radiation and electric field disrupts chemical bonds, creating ionization zones and resulting in the formation of lower-molecular-weight compounds. Optionally, a magnetic field may be superimposed in the direction of fluid flow.Type: ApplicationFiled: July 15, 2009Publication date: January 20, 2011Inventors: William M. Sackinger, Halim Hamid Redhwi, Abdullah M. Aitani, Mohammad Ashraf Ali
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Publication number: 20100240522Abstract: The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with H2 at 600° C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400° C., such as in hydrocracking.Type: ApplicationFiled: March 23, 2009Publication date: September 23, 2010Inventors: Tomoyuki Inui, Masayuki Inui, Takuma Kimura, Mohammad Abdullah Al-Saleh, Halim Hamid Redhwi, Mohammad Ashraf Ali, Shakeel Ahmed
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Patent number: 6500992Abstract: This invention concerns an improved and novel catalyst for preparing methyl tertiary butyl ether (MTBE). This invention is advantageous in that the reaction of methanol and isobutene takes place such that the catalysts exhibit levels of isobutene conversion as high as 98%, and the MTBE selectivity reaches as high as 98%. The improved catalysts comprises of a crystalline aluminosilicate zeolites, particularly MFI-type zeolites which has been treated with aluminum fluoride in the ratio 1 gram to 10 grams of zeolite with 0.5 gram to 5 grams of aluminum fluoride. A specific application of this improved and novel catalyst is reacting methanol and isobutene in a molar amount of about 0.1 mole to 10 moles of methanol per mole of isobutene, in the presence of said catalyst in a batch reactor, at about 70° C. to about 100° C., and a pressure of about 1 bar to 33 bar, to obtain MTBE product.Type: GrantFiled: November 9, 2000Date of Patent: December 31, 2002Assignee: King Fahd University of Petroleum & MineralsInventor: Mohammad Ashraf Ali