Patents by Inventor Selman Z. Erisken

Selman Z. Erisken 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 and apparatus for recycling cracked hydrocarbons
    Patent number: 10385279
    Abstract: A process and apparatus for recycling LCO and/or HCO to a hydroprocessing zone to saturate aromatics for cracking in an FCC unit is disclosed. The recycle cracked stream may be recycled to a downstream hydroprocessing zone to avoid a first hydroprocessing zone that is primarily for demetallizing (and desulfurizing) feed to the FCC unit.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: August 20, 2019
    Assignee: UOP LLC
    Inventors: Xin X. Zhu, Trung Pham, Selman Z. Erisken, Haiyan Wang, David X. Wu
  • Process and apparatus for recycling cracked hydrocarbons
    Patent number: 9181500
    Abstract: A process and apparatus for recycling LCO and/or HCO to a hydroprocessing zone to saturate aromatics for cracking in an FCC unit is disclosed. The recycle cracked stream may be recycled to a downstream hydroprocessing zone to avoid a first hydroprocessing zone that is primarily for demetallizing (and desulfurizing) feed to the FCC unit.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 10, 2015
    Assignee: UOP LLC
    Inventors: Xin X. Zhu, Trung Pham, Selman Z. Erisken, Haiyan Wang, David X. Wu
  • PROCESS AND APPARATUS FOR RECYCLING CRACKED HYDROCARBONS
    Publication number: 20150274611
    Abstract: A process and apparatus for recycling LCO and/or HCO to a hydroprocessing zone to saturate aromatics for cracking in an FCC unit is disclosed. The recycle cracked stream may be recycled to a downstream hydroprocessing zone to avoid a first hydroprocessing zone that is primarily for demetallizing (and desulfurizing) feed to the FCC unit.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 1, 2015
    Applicant: UOP LLC
    Inventors: Xin X. Zhu, Trung Pham, Selman Z. Erisken, Haiyan Wang, David X. Wu
  • PROCESS AND APPARATUS FOR RECYCLING CRACKED HYDROCARBONS
    Publication number: 20150273425
    Abstract: A process and apparatus for recycling LCO and/or HCO to a hydroprocessing zone to saturate aromatics for cracking in an FCC unit is disclosed. The recycle cracked stream may be recycled to a downstream hydroprocessing zone to avoid a first hydroprocessing zone that is primarily for demetallizing (and desulfurizing) feed to the FCC unit.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 1, 2015
    Applicant: UOP LLC
    Inventors: Xin X. Zhu, Trung Pham, Selman Z. Erisken, Haiyan Wang, David X. Wu
  • Process and apparatus for improving flow properties of crude petroleum
    Patent number: 8888992
    Abstract: A process for improving flow properties of crude may include processing a first crude stream, which may in turn include cracking the first crude stream with fresh catalyst to form a cracked stream and spent catalyst, and then mixed with an unprocessed second stream. The spent catalyst may be regenerated to form fresh catalyst, which may then be recycled. At least part of the cracked stream may be mixed with a second crude stream. A ratio of the second crude stream to the first crude stream may be between about 0.5:1 and about 9:1. A ratio of part of the cracked stream to add to the second crude stream may be selected to achieve a API gravity of at least about 18. The first crude stream may be heated and stripped before being cracked.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 18, 2014
    Assignee: UOP LLC
    Inventors: Brian W. Hedrick, James F. McGehee, Selman Z. Erisken, Jibreel A. Qafisheh