Patents by Inventor Raed H. Abudawoud

Raed H. Abudawoud 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: 20210301213
    Abstract: Processes for producing olefins include integration of steam cracking with a dual catalyst metathesis process. The processes include steam cracking a hydrocarbon feed to form a cracking reaction effluent containing butenes, separating the cracking reaction effluent to produce a cracking C4 effluent including normal butenes, isobutene, and 1,3-butadiene, subjecting the cracking C4 effluent to selective hydrogenation to convert 1,3-butadiene in the cracking C4 effluent to normal butenes, removing isobutene from a hydrogenation effluent to produce a metathesis feed containing normal butenes, and contacting the metathesis feed with a metathesis catalyst and a cracking catalyst directly downstream of the metathesis catalyst to produce a metathesis reaction effluent.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Sohel K Shaikh, Raed H Abudawoud, Zhonglin Zhang, Munir D Khokhar, Furqan Aljumah
  • Patent number: 11111192
    Abstract: A method for producing para-xylene (PX) includes introducing a C8 aromatic-containing composition to a xylene rerun column to separate the C8 aromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other C7? compounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: September 7, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Zhonglin Zhang, Sohel K Shaikh, Veera Venkata R Tammana, Raed H. Abudawoud, Bruce Richard Beadle, Hisham Tawfiq Bassam, Rakan Sulaiman Bilaus
  • Publication number: 20210238485
    Abstract: Processes for producing olefins include introducing a hydrocarbon feed to a high-severity fluidized catalytic cracking system, contacting the hydrocarbon feed with a cracking catalyst under high-severity conditions in the high-severity fluidized catalytic cracking system to produce a cracking reaction effluent comprising butene, and passing at least a portion of the cracking reaction effluent, which includes at least butene, to a metathesis system. The processes further include contacting the portion of the cracking reaction effluent with a metathesis catalyst in the metathesis system, which causes at least a portion of the butene in the cracking C4 effluent to undergo a metathesis reaction to produce a metathesis reaction effluent comprising at least one of ethylene, propene, or both. The processes may further include separating a metathesis C5+ effluent from the metathesis reaction effluent and passing the metathesis C5+ effluent back to the high-severity fluidized catalytic cracking unit.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 5, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Sohel K. Shaikh, Raed H. Abudawoud, Zhonglin Zhang, Munir D. Khokhar, Furqan Aljumah
  • Patent number: 10919822
    Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: February 16, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
  • Publication number: 20200369581
    Abstract: A method for producing para-xylene (PX) includes introducing a C8 aromatic-containing composition to a xylene rerun column to separate the C8 aromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other C7? compounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Applicant: Saudi Arabian Oil Company
    Inventors: Zhonglin Zhang, Sohel K Shaikh, Veera Venkata R Tammana, Raed H. Abudawoud, Bruce Richard Beadle, Hisham Tawfiq Bassam, Rakan Sulaiman Bilaus
  • Patent number: 10843983
    Abstract: A method for producing para-xylene (PX) includes introducing a C8 aromatic-containing composition to a xylene rerun column to separate the C8 aromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other C7? compounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: November 24, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Zhonglin Zhang, Sohel K Shaikh, Veera Venkata R Tammana, Raed H. Abudawoud, Bruce Richard Beadle, Hisham Tawfiq Bassam, Rakan Sulaiman Bilaus
  • Publication number: 20200354289
    Abstract: A method for producing para-xylene (PX) includes introducing a C8 aromatic-containing composition to a xylene rerun column to separate the C8 aromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other C7? compounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Applicant: Saudi Arabian Oil Company
    Inventors: Zhonglin Zhang, Sohel K Shaikh, Veera Venkata R Tammana, Raed H. Abudawoud, Bruce Richard Beadle, Hisham Tawfiq Bassam, Rakan Sulaiman Bilaus
  • Publication number: 20200270189
    Abstract: A method for producing para-xylene (PX) includes introducing a C8 aromatic-containing composition to a xylene rerun column to separate the C8 aromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other C7? compounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 27, 2020
    Applicant: Saudi Arabian Oil Company
    Inventors: Zhonglin Zhang, Sohel K. Shaikh, Veera Venkata R. Tammana, Raed H. Abudawoud, Bruce Richard Beadle, Hisham Tawfiq Bassam, Rakan Sulaiman Bilaus
  • Patent number: 10501389
    Abstract: Embodiments include processes and systems for maximizing the production of benzene and para-xylene from heavy reformate. Embodiments include a C9 dealkylation reactor, a transalkylation reactor, and a C10+ dealkylation reactor. The process and system for producing benzene and para-xylene may be configured to additionally produce alkanes in the presence of hydrogen or olefins in the absence of hydrogen. Embodiments may include an aromatic extraction unit to separate non-aromatics from aromatics.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: December 10, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Qi Xu, Raed H. Abudawoud, Zhonglin Zhang
  • Publication number: 20190241488
    Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 8, 2019
    Applicant: Saudi Arabian Oil Company
    Inventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
  • Patent number: 10329225
    Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 25, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
  • Patent number: 10173950
    Abstract: Systems and processes for maximizing the production of benzene and para-xylene from heavy reformate are provided. An integrated process and system may include a C9 dealkylation reactor, a transalkylation reactor, and a C10+ dealkylation reactor. The integrated process and system for producing benzene and para-xylene may be configured to additionally produce alkanes in the presence of hydrogen or olefins in the absence of hydrogen. The transalkylation reactor may perform transalkylation of product from the C9 dealkylation reactor and xylene isomerization.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 8, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Raed H. Abudawoud, Zhonglin Zhang
  • Publication number: 20180208527
    Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 26, 2018
    Applicant: Saudi Arabian Oil Company
    Inventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
  • Publication number: 20180186710
    Abstract: Systems and processes for maximizing the production of benzene and para-xylene from heavy reformate are provided. An integrated process and system may include a C9 dealkylation reactor, a transalkylation reactor, and a C10+ dealkylation reactor. The integrated process and system for producing benzene and para-xylene may be configured to additionally produce alkanes in the presence of hydrogen or olefins in the absence of hydrogen. The transalkylation reactor may perform transalkylation of product from the C9 dealkylation reactor and xylene isomerization.
    Type: Application
    Filed: November 29, 2017
    Publication date: July 5, 2018
    Inventors: Raed H. Abudawoud, Zhonglin Zhang