Methods for optimal usage and improved valuation of corrosive petroleum feedstocks and fractions (law521)
US7160728B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Aug 1, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.