Patents by Inventor Syed Ahmed Ali

Syed Ahmed Ali 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).

  • PROCESS FOR SELECTIVE DEEP HYDRODESULFURIZATION OF A HYDROCARBON FEEDSTOCK USING AN UNSUPPORTED NANOCATALYST MADE BY LASER PYROLYSIS
    Publication number: 20170369792
    Abstract: A process for producing an unsupported molybdenum sulfide nanocatalyst comprising atomizing a molybdenum oxide solution to form a molybdenum oxide aerosol, pyrolyzing the molybdenum oxide aerosol with a laser beam to form the unsupported molybdenum-based nanocatalyst, and pre-sulfiding at least a portion of the unsupported molybdenum-based nanocatalyst to form an unsupported molybdenum sulfide nanocatalyst, wherein the unsupported molybdenum-based nanocatalyst, the unsupported molybdenum sulfide catalyst or both are in the form of nanoparticles with a diameter of 1-10 nm and in a distorted rutile crystalline structure. A method of selective deep hydrodesulfurization whereby a hydrocarbon feedstock having at least one sulfur-containing component and at least one hydrocarbon is contacted with the unsupported molybdenum sulfide nanocatalyst.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 28, 2017
    Applicants: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Zain Hassan YAMANI, Nouar Tabet, Syed Ahmed Ali, Yann Leconte, Frederic Schuster, Axelle Quinsac
  • Method for the selective production of para-dialkylbenzenes
    Patent number: 9586873
    Abstract: A method is disclosed for selective simultaneous production of para-xylene, para-ethyltoluene and para-diethylbenzene from a reactant stream containing ethylbenzene and methanol, as an alkylating agent. The process comprises alkylation of the feedstock in a fluidized-bed rector under alkylating conditions, over a modified ZSM-5-based catalyst to produce streams containing above 95% para-isomers of dialkylbenzenes. The method also includes the steps of multilayer silylation to achieve simultaneous selectivity of the para-isomers of dialkylbenzenes.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: March 7, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Sulaiman Saleh Al-Khattaf, Syed Ahmed Ali, Abdullah Mohammed Aitani
  • Multimetal zeolites based catalyst for transalkylation of heavy reformate to produce xylenes and petrochemical feedstocks
    Patent number: 9221037
    Abstract: A transalkylation catalyst for the transalkylation of a heavy reformate is provided. The catalyst includes two solid acid zeolites having different physical and chemical properties, and at least three metals selected from the group 4 lanthanthides, and the elements found in groups 6 and 10 of the periodic table.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: December 29, 2015
    Assignees: SAUDI ARABIAN OIL COMPANY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Cemal Ercan, Yuguo Wang, Mohammed Ashraf Ali, Sulaiman Saleh Al-Khattaf, Syed Ahmed Ali, Abdullah Mohammed Aitani
  • METHOD FOR THE SELECTIVE PRODUCTION OF PARA-DIALKYLBENZENES
    Publication number: 20150344384
    Abstract: A method is disclosed for selective simultaneous production of para-xylene, para-ethyltoluene and para-diethylbenzene from a reactant stream containing ethylbenzene and methanol, as an alkylating agent. The process comprises alkylation of the feedstock in a fluidized-bed rector under alkylating conditions, over a modified ZSM-5-based catalyst to produce streams containing above 95% para-isomers of dialkylbenzenes. The method also includes the steps of multilayer silylation to achieve simultaneous selectivity of the para-isomers of dialkylbenzenes.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 3, 2015
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Sulaiman Saleh Al-Khattaf, Syed Ahmed Ali, Abdullah Mohammed Aitani