Patents by Inventor Shakeel Ahmed
Shakeel Ahmed 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).
-
Ga2O3/La2O3-GAMMA Al2O3 CATALYSTS FOR CO2-MEDIATED OXIDATIVE DEHYDROGENATION OF PROPANE TO PROPYLENE
Publication number: 20250073682Abstract: A method for producing propylene (C3H8) via oxidative dehydrogenation (ODH) of propane includes introducing a propane-containing feed gas stream into a reactor containing an alumina-supported Ga2O3/La2O3 catalyst comprising Ga2O3 particles at least partially disposed on surfaces of a matrix comprising rough and irregular-sized La2O3 and alumina particles; passing the propane-containing feed gas stream through the reactor in contact with the alumina supported Ga2O3/La2O3 catalyst at a temperature of 500 to 600° C. to convert at least a portion of the propane to propylene (C3H6) and produce a propylene-containing gas stream leaving the reactor; and separating the propylene from the propylene-containing gas stream. The method has a propane conversion of up to 95% based on an initial weight of the propane in the propane-containing feed gas stream, and a propylene yield of up to 60% based on the propane conversion.Type: ApplicationFiled: September 6, 2023Publication date: March 6, 2025Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammad Mozahar HOSSAIN, Majid Lasisi BALOGUN, Mohammed S. BA-SHAMMAKH, Shakeel AHMED, Wasim Ullah KHAN -
Patent number: 11472700Abstract: A process for producing a hydrogen-rich gas stream from a liquid hydrocarbon stream, the process comprising the steps of introducing the liquid hydrocarbon stream to a dual catalytic zone, the liquid hydrocarbon stream comprises liquid hydrocarbons selected from the group consisting of liquid petroleum gas (LPG), light naphtha, heavy naphtha, gasoline, kerosene, diesel, and combinations of the same, the dual catalytic zone comprises: a combustion zone comprising a seven component catalyst, and a steam reforming zone, the steam reforming zone comprising a steam reforming catalyst; introducing steam to the dual catalytic zone, introducing an oxygen-rich gas to the dual catalytic zone; contacting the liquid hydrocarbon stream, steam, and oxygen-rich gas with the seven component catalyst to produce a combustion zone fluid; and contacting the combustion zone fluid with the steam reforming catalyst to produce the hydrogen-rich gas stream, wherein the hydrogen-rich gas stream comprises hydrogen.Type: GrantFiled: December 27, 2019Date of Patent: October 18, 2022Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & Minerals, PETROBRASInventors: Roberto Carlos Pontes Bittencourt, Mauri Jose Baldini Cardoso, Vivian Passos de Souza, Shakeel Ahmed, Aadesh Harale, Sai P. Katikaneni
-
Patent number: 11358128Abstract: A method for producing a hydrogen rich gas from a heavy hydrocarbon feed comprising the steps of introducing the hydrocarbon feed to a reactor, the reactor comprising a low temperature reforming catalyst, the low temperature reforming catalyst comprising an amount of praseodymium, 12 wt % nickel, and an aluminum oxide component, contacting the low temperature reforming catalyst with the hydrocarbon feed in the reactor, wherein the reactor operates at a temperature between 500° C. and 600° C., wherein the reactor operates at a pressure between 3 bar and 40 bar, and producing the hydrogen rich gas over the low temperature reforming catalyst, wherein the hydrogen rich gas comprises hydrogen.Type: GrantFiled: December 30, 2019Date of Patent: June 14, 2022Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Shakeel Ahmed, Aadesh Harale, Mohammed Albuali, Kunho Lee, Sai P. Katikaneni, Mohammed Draze
-
Publication number: 20210197178Abstract: A method for producing a hydrogen rich gas from a heavy hydrocarbon feed comprising the steps of introducing the hydrocarbon feed to a reactor, the reactor comprising a low temperature reforming catalyst, the low temperature reforming catalyst comprising an amount of praesodymium, 12 wt % nickel, and an aluminum oxide component, contacting the low temperature reforming catalyst with the hydrocarbon feed in the reactor, wherein the reactor operates at a temperature between 500° C. and 600° C., wherein the reactor operates at a pressure between 3 bar and 40 bar, and producing the hydrogen rich gas over the low temperature reforming catalyst, wherein the hydrogen rich gas comprises hydrogen.Type: ApplicationFiled: December 30, 2019Publication date: July 1, 2021Inventors: Shakeel Ahmed, Aadesh Harale, Mohammed Albuali, Kunho Lee, Sai P. Katikaneni, Mohammed Draze
-
Publication number: 20210198106Abstract: A process for producing a hydrogen-rich gas stream from a liquid hydrocarbon stream, the process comprising the steps of introducing the liquid hydrocarbon stream to a dual catalytic zone, the liquid hydrocarbon stream comprises liquid hydrocarbons selected from the group consisting of liquid petroleum gas (LPG), light naphtha, heavy naphtha, gasoline, kerosene, diesel, and combinations of the same, the dual catalytic zone comprises: a combustion zone comprising a seven component catalyst, and a steam reforming zone, the steam reforming zone comprising a steam reforming catalyst; introducing steam to the dual catalytic zone, introducing an oxygen-rich gas to the dual catalytic zone; contacting the liquid hydrocarbon stream, steam, and oxygen-rich gas with the seven component catalyst to produce a combustion zone fluid; and contacting the combustion zone fluid with the steam reforming catalyst to produce the hydrogen-rich gas stream, wherein the hydrogen-rich gas stream comprises hydrogen.Type: ApplicationFiled: December 27, 2019Publication date: July 1, 2021Inventors: Roberto Carlos Pontes Bittencourt, Mauri Jose Baldini Cardoso, Vivian Passos de Souza, Shakeel Ahmed, Aadesh Harale, Sai P. Katikaneni
-
Patent number: 10982660Abstract: A gravity oscillating system which comprises a looped and suitably substantially circular track around which a heavy mass such as a ball travels in use, the track being supported from above or below to oscillate up and down as the ball travels around the track, and there being a power transfer mechanism linked to the track to be moved by the track as the track oscillates, the power transfer mechanism being linked to an electrical generator/dynamo whereby the movement is used to generate electrical energy and wherein the system has an oscillating electromagnetic drive comprising a plurality of electromagnets in an array around the track and which are successively momentarily energized to urge each successive part of the track around the track in a direction, upwards or downwards, to cause the track to dip down ahead of the rolling mass, without the drive contacting the track.Type: GrantFiled: December 16, 2015Date of Patent: April 20, 2021Inventor: Shakeel Ahmed Pervez
-
Publication number: 20190301437Abstract: A gravity oscillating system which comprises a looped and suitably substantially circular track around which a heavy mass such as a ball travels in use, the track being supported from above or below to oscillate up and down as the ball travels around the track, and there being a power transfer mechanism linked to the track to be moved by the track as the track oscillates, the power transfer mechanism being linked to an electrical generator/dynamo whereby the movement is used to generate electrical energy and wherein the system has an oscillating electromagnetic drive comprising a plurality of electromagnets in an array around the track and which are successively momentarily energized to urge each successive part of the track around the track in a direction, upwards or downwards, to cause the track to dip down ahead of the rolling mass, without the drive contacting the track.Type: ApplicationFiled: December 16, 2015Publication date: October 3, 2019Inventor: Shakeel Ahmed PERVEZ
-
Patent number: 10304636Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: GrantFiled: May 29, 2018Date of Patent: May 28, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Umer Mehmood, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Patent number: 10170250Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type molecules in which at least one of an oxadiazole group acts as a ?-conjugated bridge (spacer), a naphthyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell. The dye for use in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: GrantFiled: March 12, 2018Date of Patent: January 1, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Umer Mehmood, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Patent number: 10163578Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: GrantFiled: May 25, 2018Date of Patent: December 25, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Umer Mehmood, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Publication number: 20180277310Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Umer MEHMOOD, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Publication number: 20180277311Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: ApplicationFiled: May 29, 2018Publication date: September 27, 2018Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Umer MEHMOOD, Shakeel AHMED, Ibnelwaleed A. HUSSEIN
-
Publication number: 20180204685Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type molecules in which at least one of an oxadiazole group acts as a ?-conjugated bridge (spacer), a naphthyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell. The dye for use in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: ApplicationFiled: March 12, 2018Publication date: July 19, 2018Applicant: King Fahd University of Petroleum and MineralsInventors: Umer MEHMOOD, Shakeel AHMED, Ibnelwaleed A. HUSSEIN
-
Patent number: 10014121Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type molecules in which at least one of an oxadiazole group acts as a ?-conjugated bridge (spacer), a naphthyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell. The dye for use in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: GrantFiled: April 14, 2017Date of Patent: July 3, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Umer Mehmood, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Patent number: 10008335Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: GrantFiled: September 14, 2017Date of Patent: June 26, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Umer Mehmood, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Patent number: 9892864Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: GrantFiled: May 22, 2015Date of Patent: February 13, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Umer Mehmood, Shakeel Ahmed, Ibnelwaleed A. Hussein
-
Publication number: 20180037606Abstract: Racemization-free methods are disclosed for the synthesis of carfilzomib. Novel intermediates and methods of making carfilzomib employing fragment condensation using the novel intermediates are disclosed. Amorphous carfilzomib and methods of making same are disclosed.Type: ApplicationFiled: October 17, 2017Publication date: February 8, 2018Applicant: Apicore US LLCInventors: Ravishanker Kovi, Jayaraman Kannapan, Vasanthakumar G. Ramu, Alaparthi Lakshmi Prasad, Talluri Bhushaiah Chowdary, Gaurav Kulkarni, Saiyed Akeel Ahmed Shakeel Ahmed, Veerabhadra Rao Bobbili, N V Raghavalu Dusanapudi, Anand V. Mantri
-
Publication number: 20180005765Abstract: An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-?-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a ?-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the ?-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (?Ginject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ?Ginject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).Type: ApplicationFiled: September 14, 2017Publication date: January 4, 2018Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Umer MEHMOOD, Shakeel AHMED, lbnelwaleed A. HUSSEIN
-
Patent number: 9845271Abstract: 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: July 26, 2017Date of Patent: December 19, 2017Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammad Ashraf Ali, Shakeel Ahmed
-
Patent number: 9822145Abstract: Racemization-free methods are disclosed for the synthesis of carfilzomib. Novel intermediates and methods of making carfilzomib employing fragment condensation using the novel intermediates are disclosed. Amorphous carfilzomib and methods of making same are disclosed.Type: GrantFiled: August 4, 2016Date of Patent: November 21, 2017Assignee: Apicore US LLCInventors: Ravishanker Kovi, Jayaraman Kannapan, Vasanthakumar G Ramu, Alaparthi Lakshmi Prasad, Talluri Bhushaiah Chowdary, Gaurav Kulkarni, Saiyed Akeel Ahmed Shakeel Ahmed, Veerabhadra Rao Bobbili, N V Raghavalu Dusanapudi, Anand V. Mantri