The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2010
Filed:
Aug. 04, 2006
Kuangnan Qian, Belle Mead, NJ (US);
Kathleen E. Edwards, Freehold, NJ (US);
Gary J. Dechert, Asbury, NJ (US);
Stephen B. Jaffe, Moorestown, NJ (US);
Larry A. Green, Mickleton, NJ (US);
William N. Olmstead, Basking Ridge, NJ (US);
Kuangnan Qian, Belle Mead, NJ (US);
Kathleen E. Edwards, Freehold, NJ (US);
Gary J. Dechert, Asbury, NJ (US);
Stephen B. Jaffe, Moorestown, NJ (US);
Larry A. Green, Mickleton, NJ (US);
William N. Olmstead, Basking Ridge, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The present invention is a method to determine the TAN and TAN as a function of boiling point for a hydrocarbon feedstream using an electrospray ionization mass spectrometer (ESI-MS). The steps of the method include determining the signal as a function of mass from the ESI-MS while minimizing the formation of oligomers and fragmentation of the molecular species in the feedstream and then determining the TAN from the signals. The TAN is also determined as a function of boiling point.