Patents by Inventor Mazen Khaled
Mazen Khaled 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: 11851598Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: GrantFiled: May 27, 2022Date of Patent: December 26, 2023Assignee: King Fahd University of Petroleum and MineralsInventors: Ismail Abdulazeez, Othman Al-Hamouz, Abdulaziz Al-Saadi, Mazen Khaled
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Patent number: 11753590Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: GrantFiled: May 27, 2022Date of Patent: September 12, 2023Assignee: King Fahd University of Petroleum and MineralsInventors: Ismail Abdulazeez, Othman Al-Hamouz, Abdulaziz Al-Saadi, Mazen Khaled
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Patent number: 11684905Abstract: A biochar-derived adsorbent preferably from Sargassum boveanum, macroalgae can be used for removing phenolic compounds, such as 2,4,6-trichlorophenol and 2,4-dimethylphenol, from aqueous solutions. The carbonization can improve the removal capability of the macroalgae adsorbent for such phenolic compounds with removal efficiencies of 60% or more from high salinity seawater and 100% from distilled water. The adsorption may occur through a mixed mechanism dominated by physisorption following pseudo second-order kinetics. The adsorption of the phenolic molecules may be spontaneous, endothermic and thermodynamically favorable.Type: GrantFiled: April 12, 2022Date of Patent: June 27, 2023Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled Nazal, Nabeel Saeed Abuzaid
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Patent number: 11517876Abstract: A method of forming an activated carbon sorbent from a seagrass. The method involves treating a seagrass with a base solution to form an intermediate solid, drying the intermediate solid to form a precursor, and pyrolyzing the precursor at 600 to 1000° C. to form the activated carbon sorbent. Preferably the seagrass is Halodule uninervis. The activated carbon sorbent is used in a method of removing an organic pollutant from a contaminated water. Preferred organic pollutants removed are phenols, specifically 2,4-dimethylphenol and 2,4-dichlorophenol.Type: GrantFiled: May 11, 2022Date of Patent: December 6, 2022Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled Nazal, Nabeel Saeed Abuzaid
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Patent number: 11512400Abstract: A method and an electrocatalytic electrode for electrochemically reducing carbon dioxide to methanol are provided. An exemplary electrocatalytic electrode includes copper (I) oxide crystals electrodeposited over an atomically smooth copper electrode.Type: GrantFiled: December 10, 2020Date of Patent: November 29, 2022Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Fayez Nasir Al-Rowaili, Mazen Khaled, Aqil Jamal, Sagheer A. Onaizi, Umer Zahid
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Patent number: 11504694Abstract: A biochar-derived adsorbent preferably from Sargassum boveanum, macroalgae can be used for removing phenolic compounds, such as 2,4,6-trichlorophenol and 2,4-dimethylphenol, from aqueous solutions. The carbonization can improve the removal capability of the macroalgae adsorbent for such phenolic compounds with removal efficiencies of 60% or more from high salinity seawater and 100% from distilled water. The adsorption may occur through a mixed mechanism dominated by physisorption following pseudo second-order kinetics. The adsorption of the phenolic molecules may be spontaneous, endothermic and thermodynamically favorable.Type: GrantFiled: January 23, 2020Date of Patent: November 22, 2022Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled Nazal, Nabeel Saeed Abuzaid
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Patent number: 11447887Abstract: A method for forming an atomically smooth surface on a copper electrode through electropolishing and the atomically smooth surface are provided. An exemplary method for forming an atomically smooth surface by electropolishing includes placing a copper foil in an electrolyte solution including ethylene glycol and phosphoric acid. The copper foil is coupled to a current source. Current is applied to the copper foil to electropolish the copper foil. The electropolishing is stopped when the electropolishing is completed.Type: GrantFiled: December 10, 2020Date of Patent: September 20, 2022Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Fayez Nasir Al-Rowaili, Mazen Khaled, Aqil Jamal, Sagheer A. Onaizi, Umer Zahid
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Publication number: 20220290051Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Applicant: King Fahd University of Petroleum and MineralsInventors: Ismail ABDULAZEEZ, Othman AL-HAMOUZ, Abdulaziz AL-SAADI, Mazen KHALED
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Publication number: 20220282157Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: ApplicationFiled: May 27, 2022Publication date: September 8, 2022Applicant: King Fahd University of Petroleum and MineralsInventors: Ismail ABDULAZEEZ, Othman AL-HAMOUZ, Abdulaziz AL-SAADI, Mazen KHALED
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Patent number: 11414764Abstract: A method of inhibiting corrosion of metal in contact with a corrosive medium in an oil or gas field environment, whereby a formulation containing a polyurea is introduced into the corrosive medium in contact with the metal, wherein the polyurea is formed from a polymerization reaction between a piperazine having at least two reactive amine groups and a diisocyanate. The polyurea is introduced into the corrosive medium at a concentration of 1 to 250 ppm.Type: GrantFiled: October 16, 2019Date of Patent: August 16, 2022Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled, Abdulaziz A. Al-Saadi, Ismail Abdulazeez, Othman Al-Hamouz
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Publication number: 20220250030Abstract: A biochar-derived adsorbent preferably from Sargassum boveanum, macroalgae can be used for removing phenolic compounds, such as 2,4,6-trichlorophenol and 2,4-dimethylphenol, from aqueous solutions. The carbonization can improve the removal capability of the macroalgae adsorbent for such phenolic compounds with removal efficiencies of 60% or more from high salinity seawater and 100% from distilled water. The adsorption may occur through a mixed mechanism dominated by physisorption following pseudo second-order kinetics. The adsorption of the phenolic molecules may be spontaneous, endothermic and thermodynamically favorable.Type: ApplicationFiled: April 12, 2022Publication date: August 11, 2022Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled NAZAL, Nabeel Saeed ABUZAID
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Patent number: 11377595Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: GrantFiled: March 22, 2019Date of Patent: July 5, 2022Assignee: King Fahd University of Petroleum and MineralsInventors: Ismail Abdulazeez, Othman Al-Hamouz, Abdulaziz Al-Saadi, Mazen Khaled
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Publication number: 20220186399Abstract: A method for forming an atomically smooth surface on a copper electrode through electropolishing and the atomically smooth surface are provided. An exemplary method for forming an atomically smooth surface by electropolishing includes placing a copper foil in an electrolyte solution including ethylene glycol and phosphoric acid. The copper foil is coupled to a current source. Current is applied to the copper foil to electropolish the copper foil.Type: ApplicationFiled: December 10, 2020Publication date: June 16, 2022Inventors: Fayez Nasir Al-Rowaili, Mazen Khaled, Aqil Jamal, Sagheer A. Onaizi, Umer Zahid
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Publication number: 20220186385Abstract: A method and an electrocatalytic electrode for electrochemically reducing carbon dioxide to methanol are provided. An exemplary electrocatalytic electrode includes copper (I) oxide crystals electrodeposited over an atomically smooth copper electrode.Type: ApplicationFiled: December 10, 2020Publication date: June 16, 2022Inventors: Fayez Nasir Al-Rowaili, Mazen Khaled, Aqil Jamal, Sagheer A. Onaizi, Umer Zahid
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Publication number: 20210229069Abstract: A biochar-derived adsorbent preferably from Sargassum boveanum, macroalgae can be used for removing phenolic compounds, such as 2,4,6-trichlorophenol and 2,4-dimethylphenol, from aqueous solutions. The carbonization can improve the removal capability of the macroalgae adsorbent for such phenolic compounds with removal efficiencies of 60% or more from high salinity seawater and 100% from distilled water. The adsorption may occur through a mixed mechanism dominated by physisorption following pseudo second-order kinetics. The adsorption of the phenolic molecules may be spontaneous, endothermic and thermodynamically favorable.Type: ApplicationFiled: January 23, 2020Publication date: July 29, 2021Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled NAZAL, Nabeel Saeed ABUZAID
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Publication number: 20210115570Abstract: A method of inhibiting corrosion of metal in contact with a corrosive medium in an oil or gas field environment, whereby a formulation containing a polyurea is introduced into the corrosive medium in contact with the metal, wherein the polyurea is formed from a polymerization reaction between a piperazine having at least two reactive amine groups and a diisocyanate. The polyurea is introduced into the corrosive medium at a concentration of 1 to 250 ppm.Type: ApplicationFiled: October 16, 2019Publication date: April 22, 2021Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen KHALED, Abdulaziz A. Al-Saadi, Ismail Abdulazeez, Othman Al-Hamouz
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Patent number: 10843940Abstract: A polyelectrolyte coated fly ash is described with a method of making and a method of using for the adsorption of a contaminant from a solution. The polyelectrolyte coated fly ash may be made by treating the oil fly ash with acid, and then contacting the product with a positive polyelectrolyte to create a first polyelectrolyte layer, and then with a negative polyelectrolyte to create a negative polyelectrolyte layer. The resulting polyelectrolyte coated fly ash quickly adsorbs contaminants from solution, and may be cleaned and reused.Type: GrantFiled: June 28, 2018Date of Patent: November 24, 2020Assignee: King Fahd University of Petroleum and MineralsInventors: Tahar Laoui, Fatai Abidemi Olabemiwo, Bassam Tawabini, Mazen Khaled
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Publication number: 20200299577Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: ApplicationFiled: March 22, 2019Publication date: September 24, 2020Applicant: King Fahd University of Petroleum and MineralsInventors: Ismail ABDULAZEEZ, Othman AL-HAMOUZ, Abdulaziz AL-SAADI, Mazen KHALED
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Publication number: 20190330081Abstract: A polyelectrolyte coated fly ash is described with a method of making and a method of using for the adsorption of a contaminant from a solution. The polyelectrolyte coated fly ash may be made by treating the oil fly ash with acid, and then contacting the product with a positive polyelectrolyte to create a first polyelectrolyte layer, and then with a negative polyelectrolyte to create a negative polyelectrolyte layer. The resulting polyelectrolyte coated fly ash quickly adsorbs contaminants from solution, and may be cleaned and reused.Type: ApplicationFiled: June 28, 2018Publication date: October 31, 2019Applicant: King Fahd University of Petroleum and MineralsInventors: Tahar Laoui, Fatai Abidemi Olabemiwo, Bassam Tawabini, Mazen Khaled
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Patent number: 10301552Abstract: The present disclosure provides a method for removing sulfur compounds from a fuel containing sulfur compounds. The method includes contacting the fuel with an adsorbent that comprises a carbonaceous material doped with nanoparticles of aluminum oxide to reduce the concentrations of the sulfur compounds. The carbonaceous material is at least one selected from the group consisting of activated carbon, carbon nanotubes, and graphene oxide, and the adsorbent has a weight ratio of C to Al in the range from 3:1 to 30:1, and a weight ratio of C to O in the range from 1:1 to 10:1.Type: GrantFiled: May 29, 2018Date of Patent: May 28, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Mazen Mohammad Khaled, Mazen Khaled Nazal, Muataz Ali Atieh