Multi-layer steam grid for heat and mass transfer in a tailings solvent recovery unit
US9168466B2 · kind B2 · utility
0Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Apr 29, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2221/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A grid of pipes for conducting steam at a pressure greater than a vessels' operating pressure and delivering the steam throughout the grid forms the internals for a tailings solvent recovery unit. The delivery of steam throughout the grid aids in maintaining a relatively low partial pressure throughout the vessel to act as a driver for mass transfer. Conducting the steam at the higher pressure through the pipes in the grid permits a surface of the pipes to be heated to a temperature higher than possible in a conventional vessel, increasing the heat transfer to the feed stream which flows through the grid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.