Patents by Inventor Stacey E. Siporin

Stacey E. Siporin 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).

  • Patent number: 8673134
    Abstract: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: March 18, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stacey E. Siporin, David Thomas Ferrughelli, Steven S. Lowenthal, Randolph J. Smiley, Alan Roy Katritzky, Bruce R. Cook
  • Publication number: 20110132806
    Abstract: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.
    Type: Application
    Filed: October 20, 2010
    Publication date: June 9, 2011
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Stacey E. Siporin, David Thomas Ferrughelli, Steven S. Lowenthal, Randolph J. Smiley, Alan Roy Katritzky, Bruce R. Cook
  • Publication number: 20110071021
    Abstract: In one aspect, the invention provides a hydrogen storage material that is formed by reacting solid precursors (a) and (b). The (a) precursor is a compound containing X—H and Y—H bonds, where X is a Group 13 and Y is a Group 15 element. Preferably X is boron (B—H) and Y is nitrogen (N—H). Most preferably, the precursor (a) is borazane. The (b) precursor is preferably a hydride, such as LiH or LiAlH4. Another feature of the present invention is a novel hydrogen storage composition material that is formed as an intermediate (INT) in the reaction of the (a) with the (b) precursors. The INT hydrogen storage material can be a quaternary B—H—Li—N composition. Other aspects of hydrogen storage materials are provided herein.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 24, 2011
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Purdue Research Foundation, Office of Technology Commercialization
    Inventors: Alexandra N. Torgersen, Scott W. Jorgensen, Stacey E. Siporin
  • Patent number: 7887781
    Abstract: In one aspect, the invention provides a method of storing hydrogen that comprises reacting two precursors to form a hydrogen storage composition comprising hydrogen, nitrogen, a Group 13 element, and an element selected from Group 1, Group 2 or mixtures thereof. In other aspects, the present invention provides a method of storing hydrogen by ball-milling two precursors at a temperature in a range sufficient to prevent pre-mature release of hydrogen, while the temperature is still sufficient to induce reaction between the precursors. The precursors preferably have X—H, Y—H and A-H bonds where X represents a Group 13 element, Y represents a Group 15 element, and A represents an element from Group 1, Group 2, or mixtures thereof. Other variations of the methods of storing hydrogen are further provided.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: February 15, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Alexandra N. Torgersen, Scott W. Jorgensen, Stacey E. Siporin
  • Patent number: 7862791
    Abstract: In one aspect, the invention provides a hydrogen storage material that is formed by reacting solid precursors (a) and (b). The (a) precursor is a compound containing X—H and Y—H bonds, where X is a Group 13 and Y is a Group 15 element. Preferably X is boron (B—H) and Y is nitrogen (N—H). Most preferably, the precursor (a) is borazane. The (b) precursor is preferably a hydride, such as LiH or LiAlH4. Another feature of the present invention is a novel hydrogen storage composition material that is formed as an intermediate (INT) in the reaction of the (a) with the (b) precursors. The INT hydrogen storage material can be a quaternary B—H—Li—N composition. Other aspects of hydrogen storage materials are provided herein.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: January 4, 2011
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Alexandra N. Torgersen, Scott W. Jorgensen, Stacey E. Siporin