Patents by Inventor Mohamed Aiffa

Mohamed Aiffa 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).

  • Oxidative dehydrogenation process
    Patent number: 12209067
    Abstract: The product distribution from an oxidative dehydrogenation process can be altered by co-feeding different ratios of ethanol to steam, in the range of 0.01 to 0.50 ethanol:steam to an oxidative dehydrogenation reactor. Increasing the ethanol to steam ratio was found to: increase ethylene yield; decrease acetic acid yield; increase, or decrease, or cause no effect on CO or CO2 yield; and have negligible effect on ethane conversion. The feed ethanol is converted to carbonaceous products without negatively effecting the catalyst activity.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: January 28, 2025
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Shahin Goodarznia, Vasily Simanzhenkov, Mohamed Aiffa, Bolaji Olayiwola
  • OXIDATIVE DEHYDROGENATION PROCESS
    Publication number: 20230348343
    Abstract: The product distribution from an oxidative dehydrogenation process can be altered by co-feeding different ratios of ethanol to steam, in the range of 0.01 to 0.50 ethanol:steam to an oxidative dehydrogenation reactor. Increasing the ethanol to steam ratio was found to: increase ethylene yield; decrease acetic acid yield; increase, or decrease, or cause no effect on CO or CO2 yield; and have negligible effect on ethane conversion. The feed ethanol is converted to carbonaceous products without negatively effecting the catalyst activity.
    Type: Application
    Filed: September 20, 2021
    Publication date: November 2, 2023
    Inventors: Shahin GOODARZNIA, Vasily SIMANZHENKOV, Mohamed AIFFA, Bolaji OLAYIWOLA
  • LIMITING ACETIC ACID PRODUCTION IN ETHANE ODH PROCESS
    Publication number: 20230202958
    Abstract: The present disclosure relates to limiting the production of acetic acid in an oxidative dehydrogenation process to convert ethane to ethylene. The process of oxidative dehydrogenation includes feeding acetic acid, along with ethane and oxygen into an oxidative dehydrogenation reactor where contact with a catalyst leads to conversion of the ethane into ethylene and acetic acid. By including acetic acid in the feed, the amount of acetic acid produced may be limited and the ratio of ethylene produced to ethane consumed may increase.
    Type: Application
    Filed: May 25, 2021
    Publication date: June 29, 2023
    Inventors: Bolaji OLAYIWOLA, Shahin GOODARZNIA, Vasily SIMANZHENKOV, Mohamed AIFFA, Kamal SERHAL, Robert LADD, David GENT
  • Removing oxygen from ODH process by injecting alcohol
    Patent number: 11306044
    Abstract: Provided in this disclosure is a process for the oxidative dehydrogenation of a lower alkane into a corresponding alkene. The process includes providing a gas stream comprising the lower alkane to a reactor; contacting, in the oxidative dehydrogenation reactor, the lower alkane with a catalyst that includes a mixed metal oxide; and providing to the last 50% of the oxidative dehydrogenation reactor a stream comprising from 0.01 vol. % to 10 vol. % of a C1-C3 alcohol.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: April 19, 2022
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Bolaji Olayiwola, Vasily Simanzhenkov, Shahin Goodarznia, Mohamed Aiffa
  • Removing Oxygen From ODH Process by Injecting Alcohol
    Publication number: 20210309592
    Abstract: Provided in this disclosure is a process for the oxidative dehydrogenation of a lower alkane into a corresponding alkene. The process includes providing a gas stream comprising the lower alkane to a reactor; contacting, in the oxidative dehydrogenation reactor, the lower alkane with a catalyst that includes a mixed metal oxide; and providing to the last 50% of the oxidative dehydrogenation reactor a stream comprising from 0.01 vol. % to 10 vol. % of a C1-C3 alcohol.
    Type: Application
    Filed: May 10, 2021
    Publication date: October 7, 2021
    Inventors: Bolaji Olayiwola, Vasily Simanzhenkov, Shahin Goodarznia, Mohamed Aiffa
  • Removing oxygen from ODH process by injecting alcohol
    Patent number: 11053179
    Abstract: Provided in this disclosure is a process for the oxidative dehydrogenation of a lower alkane into a corresponding alkene. The process includes providing a gas stream comprising the lower alkane to a reactor; contacting, in the oxidative dehydrogenation reactor, the lower alkane with a catalyst that includes a mixed metal oxide; and providing to the last 50% of the oxidative dehydrogenation reactor a stream comprising from 0.01 vol. % to 10 vol. % of a C1-C3 alcohol.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: July 6, 2021
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Bolaji Olayiwola, Vasily Simanzhenkov, Shahin Goodarznia, Mohamed Aiffa
  • REMOVING OXYGEN FROM ODH PROCESS BY INJECTING ALCOHOL
    Publication number: 20200123085
    Abstract: Provided in this disclosure is a process for the oxidative dehydrogenation of a lower alkane into a corresponding alkene. The process includes providing a gas stream comprising the lower alkane to a reactor; contacting, in the oxidative dehydrogenation reactor, the lower alkane with a catalyst that includes a mixed metal oxide; and providing to the last 50% of the oxidative dehydrogenation reactor a stream comprising from 0.01 vol. % to 10 vol. % of a C1-C3 alcohol.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Bolaji Olayiwola, Vasily Simanzhenkov, Shahin Goodarznia, Mohamed Aiffa
  • Ziegler-Natta catalyst for high temperature polymerization
    Patent number: 10590214
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: March 17, 2020
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Ziegler-Natta catalyst for high temperature polymerization
    Patent number: 10442880
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 15, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • ZIEGLER-NATTA CATALYST FOR HIGH TEMPERATURE POLYMERIZATION
    Publication number: 20180282453
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 4, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • ZIEGLER-NATTA CATALYST FOR HIGH TEMPERATURE POLYMERIZATION
    Publication number: 20180118863
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: December 21, 2017
    Publication date: May 3, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • ZIEGLER-NATTA CATALYST FOR HIGH TEMPERATURE POLYMERIZATION
    Publication number: 20170037163
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: October 4, 2016
    Publication date: February 9, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Ziegler-Natta catalyst for high temperature polymerization
    Patent number: 9481748
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: November 1, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • ZIEGLER-NATTA CATALYST FOR HIGH TEMPERATURE POLYMERIZATION
    Publication number: 20160046745
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 18, 2016
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber