Patents by Inventor Zaki Yusuf

Zaki Yusuf 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).

  • Publication number: 20230015062
    Abstract: Compositions and methods are provided for treating burns to minimize hyperkalemia, hyponatremia, blistering, and pain by externally applying gel mixture on burn areas from onset of burn shock. The substrate is a gel mixture containing concentrated sodium ion to create a concentration gradient, allowing in situ diffusion of sodium ion (in vitro) into blister, edema, and extracellular fluids (in vivo) to reduce hyponatremia and (in situ), delivering pH control constituents in vivo to prevent initial acidosis, and minimizing subsequent alkalosis and normalizing SID while simultaneously in situ expelling potassium ions in vitro from the same fluids transdermally while restoring the normal homeostasis condition in the human body.
    Type: Application
    Filed: December 16, 2020
    Publication date: January 19, 2023
    Inventor: Zaki Yusuf
  • Publication number: 20210186873
    Abstract: Compositions and methods are provided for treating first, second degree burns to rapidly minimize hyperkalemia, hyponatremia, blistering, and pain management by externally applying gel mixture on unopened injured burn areas from onset of burn shock. The substrate is a gel mixture matrix containing concentrated sodium ion that creates a concentration gradient, allowing in situ diffusion of sodium ion (in vitro) into blister, edema, and extracellular fluids (in vivo) to reduce hyponatremia and (in situ), delivering the pH control constituents in vivo to prevent initial acidosis, followed by minimizing subsequent alkalosis and normalizing SID while simultaneously in situ expelling potassium ions in vitro from the same fluids transdermally while restoring normal homeostasis.
    Type: Application
    Filed: November 18, 2020
    Publication date: June 24, 2021
    Inventor: Zaki Yusuf
  • Patent number: 10808186
    Abstract: Methods of extracting 1-4 cycle heterocyclic compounds and 2-5 cycle polynuclear aromatic hydrocarbons from a hydrocarbon feedstock are described. The methods include providing a hydrocarbon feedstock containing crude oil fractions, and determining an A/R ratio and an asphaltene concentration of the hydrocarbon feedstock. Based upon the A/R ratio and the asphaltene concentration, the treatable hydrocarbon feedstock undergoes one or more of cracking and fractionating. Subsequently, at least one targeted portion of the heterocyclic compounds is extracted from the fractionated stream with an aqueous solvent. A stream containing the 2-5 cycle polynuclear aromatic hydrocarbons is transferred to an extractor and the 2-5 cycle polynuclear aromatic hydrocarbons are extracted with a solvent system comprising an aprotic solvent.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 20, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Zaki Yusuf, Ahmad D. Hammad, Alberto Lozano Ballesteros
  • Patent number: 10252243
    Abstract: A process for producing black powder oxygen carriers for use in a chemical looping combustion unit includes the steps of: (a) removing and collecting the black powder waste material that was formed in a gas pipeline; (b) pre-treating the collected black powder to adjust its spherical shape to avoid attrition and fines production; and (c) activating the black powder to increase its reactivity rate and produce the black powder oxygen carrier that is suitable for use in the chemical looping combustion process as an oxygen carrier.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: April 9, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Bandar A Fadhel, Zaki Yusuf, Ahmad D. Hammad, Ali Hoteit, Per Tobias Mattisson
  • Patent number: 10103416
    Abstract: A photocatalytic power generation system including a solar housing, a photoanode, an electrolyte membrane, a cathode, an oxygen diffusion membrane, and an external power generation circuit. The photoanode and the cathode are each positioned within the solar housing and electrically coupled to the external power generation circuit. The electrolyte membrane is positioned between and electrochemically engaged with the photoanode and the cathode forming a photocatalytic cell. The solar housing comprises a closed-loop water chamber having an anode side flow channel, a cathode side flow channel, a recombined water channel, and an oxygen diffusion membrane. Further, the oxygen diffusion membrane is positioned and configured to inhibit recombined water generated at the cathode from flowing from the cathode side to the anode side along the oxygen transport channel and permit recombined water generated at the cathode from flowing from the cathode side to the anode side along the recombined water channel.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 16, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Stamatios Souentie, Ahmad D. Hammad, Konstantinos Kotsovos, Zaki Yusuf
  • Publication number: 20180187104
    Abstract: Methods of extracting 1-4 cycle heterocyclic compounds and 2-5 cycle polynuclear aromatic hydrocarbons from a hydrocarbon feedstock are described. The methods include providing a hydrocarbon feedstock containing crude oil fractions, and determining an A/R ratio and an asphaltene concentration of the hydrocarbon feedstock. Based upon the A/R ratio and the asphaltene concentration, the treatable hydrocarbon feedstock undergoes one or more of cracking and fractionating. Subsequently, at least one targeted portion of the heterocyclic compounds is extracted from the fractionated stream with an aqueous solvent. A stream containing the 2-5 cycle polynuclear aromatic hydrocarbons is transferred to an extractor and the 2-5 cycle polynuclear aromatic hydrocarbons are extracted with a solvent system comprising an aprotic solvent.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 5, 2018
    Applicant: Saudi Arabian Oil Company
    Inventors: Zaki Yusuf, Ahmad D. Hammad, Alberto Lozano Ballesteros
  • Patent number: 9973141
    Abstract: A solar system is provided comprising a light receiving surface, a condensation subassembly, a water collection subassembly, and a cleaning subassembly. The expansion chamber of the condensation subassembly is thermally coupled to the light receiving surface and thermally insulated from the ambient such that expansion of compressed air in the expansion chamber, as controlled by the compressed air expansion valve, encourages humidity condensation on the light receiving surface by reducing the temperature of the light receiving surface. The water collection subassembly comprises a water collection vessel and water direction hardware positioned to direct condensed water on the light receiving surface to the water collection vessel. The cleaning subassembly comprises a water dispensing unit positioned to dispense water from the water collection vessel over the light receiving surface of the solar system.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: May 15, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Ahmad D. Hammad, Stamatios Souentie, Zaki Yusuf
  • Patent number: 9861910
    Abstract: A process and system for improving the efficiency of regenerating a CO2-rich liquid absorbent stream following contact in an absorption zone with, e.g., a flue gas stream from which it has absorbed CO2, and recovering a substantially pure stream of includes passing the pressurized liquid sorbent through a heating zone to heat it to the desorption temperature, e.g., to about 80°-85° C. for aqueous K2CO3 sorbent, introducing the heated liquid sorbent into a cyclone separation zone where the combination of increased temperature, reduced pressure and the centrifugal forces on the liquid/gas mixture result in a relatively more rapid and efficient separation of the CO2 from the liquid sorbent from which it has been released.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: January 9, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Ahmad D. Hammad, Abdul Rahman Zafer Akhras, Zaki Yusuf, Nayif A. Rasheedi, Amjaad Al-Qahtani
  • Publication number: 20170259240
    Abstract: A process for producing black powder oxygen carriers for use in a chemical looping combustion unit includes the steps of: (a) removing and collecting the black powder waste material that was formed in a gas pipeline; (b) pre-treating the collected black powder to adjust its spherical shape to avoid attrition and fines production; and (c) activating the black powder to increase its reactivity rate and produce the black powder oxygen carrier that is suitable for use in the chemical looping combustion process as an oxygen carrier.
    Type: Application
    Filed: April 11, 2017
    Publication date: September 14, 2017
    Inventors: Bandar A. Fadhel, Zaki Yusuf, Ahmad D. Hammad, Ali Hoteit, Per Tobias Mattisson
  • Publication number: 20170263990
    Abstract: A photocatalytic power generation system including a solar housing, a photoanode, an electrolyte membrane, a cathode, an oxygen diffusion membrane, and an external power generation circuit. The photoanode and the cathode are each positioned within the solar housing and electrically coupled to the external power generation circuit. The electrolyte membrane is positioned between and electrochemically engaged with the photoanode and the cathode forming a photocatalytic cell. The solar housing comprises a closed-loop water chamber having an anode side flow channel, a cathode side flow channel, a recombined water channel, and an oxygen diffusion membrane. Further, the oxygen diffusion membrane is positioned and configured to inhibit recombined water generated at the cathode from flowing from the cathode side to the anode side along the oxygen transport channel and permit recombined water generated at the cathode from flowing from the cathode side to the anode side along the recombined water channel.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 14, 2017
    Applicant: Saudi Arabian Oil Company
    Inventors: Stamatios Souentie, Ahmad D. Hammad, Konstantinos Kotsovos, Zaki Yusuf
  • Patent number: 9688923
    Abstract: Methods are provided for extracting heterocyclic compounds, organometallic compounds, and polynuclear aromatic hydrocarbons from a hydrocarbon feedstock such as crude oil or a crude fraction. The heterocyclic compounds and organometallic compounds are removed from the hydrocarbon feedstock through one or more successive extractions to form a first raffinate. The extractions use a first solvent system containing an ionic liquid formed from carbon dioxide and water. The polynuclear aromatic hydrocarbons are removed from the first raffinate using a second solvent system containing an aprotic solvent such as NMP, DMSO, aromatics, or combinations thereof. The extracted compounds remain chemically intact and may be fractionated for further applications. Further methods are provided for producing a hydrocarbon raffinate having reduced levels of heterocyclic compounds, organometallic compounds, and 2-4 cycle polynuclear aromatic hydrocarbons.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: June 27, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Zaki Yusuf, Alberto Lozano Ballesteros
  • Patent number: 9592488
    Abstract: The invention relates to methods for making completely biodegradable, hydrophobic, oleophilic plant based materials which are useful in adsorption of petroleum products. The materials have an average diameter of from 1 to 5 mm, and an ash content of from 10% to 30%. The non-paraffin coating is an animal fat product, preferably produced by dissolving a pure animal fat and using this as the coating material.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: March 14, 2017
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Zaki Yusuf, Bandar Fadhel, Ahmad D. Hammad
  • Patent number: 9562198
    Abstract: A demulsification process for extracting surface active biochemical products from crude oil and its fractions when they are used as feedstock during biochemical productions utilizes subcritical/supercritical CO2 as a proton pump. The process also includes a pH tuning step, thereby inducing demulsification and precipitation of biochemical products into the aqueous phase, but avoiding asphaltene precipitation by apriori addition of resinous solvents derived from crude oil or bioresources. The biochemical products are then extracted from the aqueous phase via temperature change or some other technique.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: February 7, 2017
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventor: Zaki Yusuf
  • Publication number: 20160211796
    Abstract: A solar system is provided comprising a light receiving surface, a condensation subassembly, a water collection subassembly, and a cleaning subassembly. The expansion chamber of the condensation subassembly is thermally coupled to the light receiving surface and thermally insulated from the ambient such that expansion of compressed air in the expansion chamber, as controlled by the compressed air expansion valve, encourages humidity condensation on the light receiving surface by reducing the temperature of the light receiving surface. The water collection subassembly comprises a water collection vessel and water direction hardware positioned to direct condensed water on the light receiving surface to the water collection vessel. The cleaning subassembly comprises a water dispensing unit positioned to dispense water from the water collection vessel over the light receiving surface of the solar system.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 21, 2016
    Applicant: Saudi Arabian Oil Company
    Inventors: Ahmad D. Hammad, Stamatios Souentie, Zaki Yusuf
  • Patent number: 9394489
    Abstract: Methods for recovering organic heteroatom compounds from a hydrocarbon feedstock include feeding into a contactor a hydrocarbon feedstock and an aqueous solvent to form an extraction mixture of the aqueous solvent with the hydrocarbon feedstock. The hydrocarbon feedstock includes a hydrocarbon and an organic heteroatom compound. The aqueous solvent includes an ionic liquid formed from pressurized carbon dioxide and water. A pressure and temperature of the extraction mixture may be established that together tune the aqueous solvent to selectively form a solvent complex with the at least one organic heteroatom compound. Then, the solvent complex is extracted to a recovery vessel from the extraction mixture in the contactor. By adjustment of a recovery temperature of the recovery vessel, a recovery pressure of the recovery vessel, or both, the solvent complex decomposes into carbon dioxide and the organic heteroatom compound. The organic heteroatom compound is then recovered from the recovery vessel.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: July 19, 2016
    Assignee: Saudi Arabian Oil Company
    Inventors: Zaki Yusuf, Ahmad D. Hammad, Stamatios Souentie, Bandar Fadhel, Nayif Rasheedi
  • Publication number: 20160166951
    Abstract: A process and system for improving the efficiency of regenerating a CO2-rich liquid absorbent stream following contact in an absorption zone with, e.g., a flue gas stream from which it has absorbed CO2, and recovering a substantially pure stream of includes passing the pressurized liquid sorbent through a heating zone to heat it to the desorption temperature, e.g., to about 80°-85° C. for aqueous K2CO3 sorbent, introducing the heated liquid sorbent into a cyclone separation zone where the combination of increased temperature, reduced pressure and the centrifugal forces on the liquid/gas mixture result in a relatively more rapid and efficient separation of the CO2 from the liquid sorbent from which it has been released.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 16, 2016
    Inventors: Ahmad D. HAMMAD, Abdul Rahman Zafer AKHRAS, Zaki YUSUF, Nayif A. RASHEEDI, Amjaad AL-QAHTANI
  • Publication number: 20160097138
    Abstract: A process for converting carbon dioxide to hydrocarbon fuels using solar energy harnessed with a solar thermal power system to create thermal energy and electricity, using the thermal energy to heat a fuel feed stream, the heated fuel feed stream comprising carbon dioxide and water, the carbon dioxide captured from a flue gas stream, converting the carbon dioxide and water in a syngas production cell, the syngas production cell comprising a solid oxide electrolyte, to create carbon monoxide and hydrogen, and converting the carbon monoxide and hydrogen to hydrocarbon fuels in a catalytic reactor. In at least one embodiment, the syngas production cell is a solid oxide fuel cell. In at least one embodiment, the syngas production cell is a solid oxide electrolyzer cell.
    Type: Application
    Filed: December 2, 2015
    Publication date: April 7, 2016
    Inventors: Ahmad D. HAMMAD, Zaki YUSUF, Stamatios SOUENTIE, Nayif A. AL-RASHEEDI, Bandar A. FADHEL, Atef Saeed AL-ZAHRANI
  • Patent number: 9238598
    Abstract: A process for converting carbon dioxide to hydrocarbon fuels using solar energy harnessed with a solar thermal power system to create thermal energy and electricity, using the thermal energy to heat a fuel feed stream, the heated fuel feed stream comprising carbon dioxide and water, the carbon dioxide captured from a flue gas stream, converting the carbon dioxide and water in a syngas production cell, the syngas production cell comprising a solid oxide electrolyte, to create carbon monoxide and hydrogen, and converting the carbon monoxide and hydrogen to hydrocarbon fuels in a catalytic reactor. In at least one embodiment, the syngas production cell is a solid oxide fuel cell. In at least one embodiment, the syngas production cell is a solid oxide electrolyzer cell.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: January 19, 2016
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ahmad D. Hammad, Zaki Yusuf, Stamatios Souentie, Nayif A. Al-Rasheedi, Bandar A. Fadhel, Atef Saeed Al-Zahrani
  • Publication number: 20150353847
    Abstract: Methods are provided for extracting heterocyclic compounds, organometallic compounds, and polynuclear aromatic hydrocarbons from a hydrocarbon feedstock such as crude oil or a crude fraction. The heterocyclic compounds and organometallic compounds are removed from the hydrocarbon feedstock through one or more successive extractions to form a first raffinate. The extractions use a first solvent system containing an ionic liquid formed from carbon dioxide and water. The polynuclear aromatic hydrocarbons are removed from the first raffinate using a second solvent system containing an aprotic solvent such as NMP, DMSO, aromatics, or combinations thereof. The extracted compounds remain chemically intact and may be fractionated for further applications. Further methods are provided for producing a hydrocarbon raffinate having reduced levels of heterocyclic compounds, organometallic compounds, and 2-4 cycle polynuclear aromatic hydrocarbons.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 10, 2015
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Zaki Yusuf, Alberto Lozano Ballesteros
  • Publication number: 20150343416
    Abstract: A process for producing black powder oxygen carriers for use in a chemical looping combustion unit includes the steps of: (a) removing and collecting the black powder waste material that was formed in a gas pipeline; (b) pre-treating the collected black powder to adjust its spherical shape to avoid attrition and fines production; and (c) activating the black powder to increase its reactivity rate and produce the black powder oxygen carrier that is suitable for use in the chemical looping combustion process as an oxygen carrier.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 3, 2015
    Applicant: Saudi Arabian Oil Company
    Inventors: Bandar A. Fadhel, Zaki Yusuf, Ahmad D. Hammad, Ali Hoteit, Per Tobias Mattisson