Method and apparatus for determining a property or yield of a hydrocarbon product based on NIRA of the feedstock
US5452232A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Dec 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2829
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The properties and yield of a product from a hydrocarbon conversion or separation process may be determined from the NIR (Near Infrared) spectrum of the feedstock. This is accomplished by: (a) determining with an IR spectrometer the absorbance of the feedstock at a certain number of frequencies in the spectral range 16667 to 3840 cm.sup.-1 starting from a defined base line, and then (b) determining the property or yield by applying a correlation between the property or yield and the absorbance values. The correlation is determined experimentally by multivariate regression and is dependent upon the type of spectrometer employed, the property or yield to be determined, and the frequencies used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.