On-stream cloud point analyzer
US4519717A · kind A · utility
15Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1982 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Jun 7, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2811
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Liquid hydrocarbon samples from a mainstream are diverted through a sample cell in cooling chamber. An optical cloud point detector signals a microprocessor-based control system which controls the charging and cooling of the cell. Cloud point reference level is continuously updated. After each measurement cycle, the control system readjusts the cooling power so that the time interval between the end of the flush cycle and cloud point detection is brought within a predetermined range. The control system switches between several distinct modes of operation automatically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.