Hydrocarbon analysis and control by raman spectroscopy
US5684580A · kind A · utility
63Cited by
20References
66Claims
0Family size
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Key dates
| Filing date | May 1, 1995 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | May 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/65
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Benzene and substituted aromatic hydrocarbons can be predicted within .+-.0.31% vol or better, using Raman NIR spectroscopy and multivariate analysis, with optional fiberoptics multistreaming, preferably with Partial Least Squares regression analysis. The resulting signal can be used to control concentration of such compounds in product to desired levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.