Process for producing cold and/or heat by use of an absorption cycle with carbon dioxide as working fluid
US4433554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1982 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Jul 16, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Process for producing cold and/or heat, making use of an absorption cycle and wherein carbon dioxide is the working fluid, comprising the steps of: PA1 (a) heating a solution L.sub.1 of carbon dioxide in a liquid solvent so as to obtain a carbon dioxide gaseous phase G.sub.1 and a desorbed liquid phase S.sub.1, PA1 (b) dissolving said gaseous phase in a liquid solvent S.sub.2 therefor while removing the evolved heat, PA1 (c) heating under reduced pressure the solution obtained in step b so as to desorb a carbon dioxide phase G.sub.2 therefrom and form a desorbed liquid phase S.sub.3, PA1 (d) admixing S.sub.1 and G.sub.2 at the pressure level of G.sub.2 while removing heat and increasing the pressure of the resulting solution L.sub.3 to the pressure of L.sub.1 and recycling it at least partially to step a, and PA1 (e) recycling at least a portion of S.sub.3 to step b after recompression to the pressure level of G.sub.1, in order to reconstitute S.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.