Process for on-line monitoring of oxidation or degradation and processability of oil sand ore
US6768115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Nov 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3563
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The degree of degradation or oxidation of an oil sand ore feedstock is monitored by near infrared spectroscopy. A beam of near infrared radiation is directed onto the surface of oil sand ore, e.g. on a conveyor belt, to produce reflected radiation and distinctive spectral features are measured indicative of the degree of degradation or oxidation of the oil sand ore. These distinctive spectral features are selected from (a) recording a baseline spectrum shift with decreasing spectral intensity indicating increasing degradation or oxidation, (b) recording spectral peaks in the range 1150 to 1250 nm with said spectral peaks increasing with increasing degradation or oxidation, (c) recording spectral peaks in the range 1700 to 1800 nm with said spectral peaks decreasing with increasing degradation or oxidation and (d) recording spectral peaks in the range 1900 to 2000 nm with said spectral peaks increasing with increasing degradation or oxidation. The recorded spectral values are mathematically converted into signals for controlling operating conditions in an oil sand processing plant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.