Backflush system for a filter membrane located upstream of a hydrocarbon analyzer apparatus
US5769539A · kind A · utility
12Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1995 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Aug 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrocarbon analyzer wherein the filter is backflushed by the liquid sample. The motive force for the backflush is provided by energy stored from the pumping of the liquid sample in a compressible fluid in contact with the sample downstream of the filter. After the sample has been analyzed the pressure on the upstream side of the filter is lowered and the energy in the compressible fluid is released pushing the liquid sample back across the filter providing a backflush.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.