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:
Jan. 09, 2007
Filed:
Sep. 16, 2003
Robert J. L. Chimenti, Short Hills, NJ (US);
Gerald M. Halpern, Bridgewater, NJ (US);
Patricia H. Kalamaras, Milford, NJ (US);
Michael P. Anderson, The Woodlands, TX (US);
Maureen Iannucci, Sierra Madre, CA (US);
Robert J. L. Chimenti, Short Hills, NJ (US);
Gerald M. Halpern, Bridgewater, NJ (US);
Patricia H. Kalamaras, Milford, NJ (US);
Michael P. Anderson, The Woodlands, TX (US);
Maureen Iannucci, Sierra Madre, CA (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The invention is a method to improve the prediction of the corrosivity of organic acids in petroleum crudes, feedstocks and distillation fractions by providing a more accurate, repeatable, and rapid means of determining the TAN from the IR spectrum of the material. The method can be easily practiced in refinery, terminal, and assay laboratories. It can be used in conjunction with models and hardware to optimize the usage and improve the valuation of corrosive feed stocks. The invention can be implemented on-line for blending optimization. It comprises the steps of irradiating a heated petroleum sample with IR radiation to produce its IR absorption spectrum, and predicting the TAN from the spectrum using a linear, multivariate regression model. The IR TAN value is then used as input to blending, valuation, and corrosion models.