Patents by Inventor Dhiya Al Syed Ahmad

Dhiya Al Syed Ahmad 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 for upgrading whole crude oil to remove nitrogen and sulfur compounds
    Patent number: 7799211
    Abstract: A crude oil feedstream is treated to remove or reduce the content of known undesired heteroatomic and polynuclear aromatic compounds containing nitrogen and sulfur by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired compounds from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorbed boiling ranges of products having a lowered content of the undesired compounds, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: September 21, 2010
    Assignee: Saudi Arabian Oil Company
    Inventors: Omer Refa Koseoglu, Adnan Al-Hajji, Jaffar H. Al-Nufaily, Dhiya Al Syed Ahmad, Hendrik Muller
  • Process for upgrading whole crude oil to remove nitrogen and sulfur compounds
    Publication number: 20090120842
    Abstract: A crude oil feedstream is treated to remove or reduce the content of known undesired heteroatomic and polynuclear aromatic compounds containing nitrogen and sulfur by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired compounds from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorbed boiling ranges of products having a lowered content of the undesired compounds, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 14, 2009
    Inventors: Omer Refa Koseoglu, Adnan Al-Hajji, Jaffar H. Al-Nufaily, Dhiya Al Syed Ahmad, Hendrik Muller