Patents by Inventor Nga Malekzadeh

Nga Malekzadeh 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, method, and system for removing heavy metals from fluids
    Patent number: 9598648
    Abstract: A process for removing non-volatile, particulate mercury from crudes and condensates is disclosed. Particulate mercury in crudes can be removed by a process of first adding a halogen, such as I2. The halogen converts at least 10% of the particulate mercury into an oil-soluble mercury compound that cannot be removed by filtration or centrifugation. This oil-soluble mercury compound can then be removed by adsorption onto a solid adsorbent. The process can operate at near ambient conditions. The adsorption step can be carried out by mixing a particulate adsorbent in the halogen-treated crude and then removing it by centrifugation, desalting, filtration, hydrocyclone or by settling.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 21, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Dennis John O'Rear, Wei Wang, Nga Malekzadeh
  • PROCESS, METHOD, AND SYSTEM FOR REMOVING HEAVY METALS FROM FLUIDS
    Publication number: 20160304791
    Abstract: A process for removing non-volatile, particulate mercury from crudes and condensates is disclosed. Particulate mercury in crudes can be removed by a process of first adding a halogen, such as I2. The halogen converts at least 10% of the particulate mercury into an oil-soluble mercury compound that cannot be removed by filtration or centrifugation. This oil-soluble mercury compound can then be removed by adsorption onto a solid adsorbent. The process can operate at near ambient conditions. The adsorption step can be carried out by mixing a particulate adsorbent in the halogen-treated crude and then removing it by centrifugation, desalting, filtration, hydrocyclone or by settling.
    Type: Application
    Filed: October 27, 2015
    Publication date: October 20, 2016
    Inventors: Dennis John O'Rear, Wei Wang, Nga Malekzadeh