Removal of low-boiling fractions from high temperature heat transfer systems
US5256258A · kind A · utility
2Cited by
23References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Nov 27, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/343
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Water and organic low-boiling constituents in a organic heat transfer fluids used to heat commercial processes are removed by counter current stripping the fluid with a gas such as nitrogen. The gas containing low-boiling constituents is sent to a rectification column and condenser to return heat transfer fluid which also vaporizes into the gas, but to a lesser extent than the low-boilers, to the heat transfer system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.