Chemistry: analytical and immunological testing – Geochemical – geological – or geothermal exploration – For petroleum oils or carbonaceous minerals
Reexamination Certificate
2007-01-09
2007-01-09
Gakh, Yelena G. (Department: 1743)
Chemistry: analytical and immunological testing
Geochemical, geological, or geothermal exploration
For petroleum oils or carbonaceous minerals
C436S055000, C436S164000
Reexamination Certificate
active
10663566
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.
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Anderson Michael P.
Chimenti Robert J. L.
Halpern Gerald M.
Iannucci Maureen
Kalamaras Patricia H.
ExxonMobil Research and Engineering Company
Gakh Yelena G.
Hantman Ronald D.
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