Process and device to measure the asphaltene content of petroleum products
US4238451A · kind A · utility
16Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1979 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Apr 3, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus to measure the asphaltene content of petroleum products where a precipitation evaporator for the sample is surmounted by a condensing unit. Immediately below the precipitation evaporator is a filtering unit with a rinsing vapor inlet line for conveying washing liquid from a balloon-flask evaporator. The precipitation evaporator is also equipped with an adjustable flap for preventing fluid from passing to the filtering unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.