Reboiler/condenser heat exchanger of the bath type
US6622784B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Apr 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A reboiler/condenser bath heat exchanger for heat exchange between a first fluid to be vaporized and a second fluid to be condensed includes a number of passages for heat exchange between the two fluids in order to make the second fluid flow, which fluid has a temperature of T2-2 at the outlet of the passages; a vessel containing the passages for making the first fluid flow between the passages by thermosiphon effect from the bottom upwards over a height h, the first fluid having an entry temperature T1-1 where T1-1<T2-2 and an exit pressure P1-2; elements for giving the entry pressure P1-1 of the first fluid a value such that the pressure P1-2 is greater than a minimum pressure Pm,ex and elements for ensuring that at least one of the following two conditions is fulfilled:the height h of the passages is at least equal to 2.5 m; andthe temperature T2-2 of the second fluid is less than T1-1+1.2° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.