Patents by Inventor James Andrew Zboray

James Andrew Zboray 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).

  • Integrated gas to olefins process with recovery and conversion of by-products
    Publication number: 20040122267
    Abstract: This invention provides a method for producing a light olefin product from a hydrocarbon feed, as well as a method for converting by-product to light olefin. In one embodiment, the process includes production of a synthesis gas from the hydrocarbon feed, conversion of the synthesis gas to an oxygenate composition, and conversion of the oxygenate components to an olefin stream. A by-product stream can also be separated and ultimately converted to additional light olefin product.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventors: Jaimes Sher, James Andrew Zboray
  • Production of high purity olefins
    Patent number: 6121503
    Abstract: A process for converting an oxygenate feed to high purity olefins such as polymer-grade propylene (C.sub.3.sup.0 /C.sub.3.sup.= .ltoreq.0.05) at a temperature of about 450.degree. C. (842.degree. F.), using a molecular sieve catalyst having a high preselected Si/Al.sub.2 ratio (such as ZSM-5, ZSM-48) or a preselected Si/Fe.sub.2 ratio (such as FeZSM-5), or SAPO-34.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: September 19, 2000
    Assignee: Exxon Chemical Pateuts Inc.
    Inventors: Marcel Johannes Gerardus Janssen, James Andrew Zboray