Process for cooling a product in a heat exchanger employing microchannels for the flow of refrigerant and product
US6622519B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2260/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to a process for cooling a product in a heat exchanger, the process comprising: flowing a refrigerant through a set of first microchannels in the heat exchanger; flowing a refrigerant through a set of second microchannels in the heat exchanger, the refrigerant flowing through the set of second microchannels being at a lower temperature, a lower pressure or both a lower temperature and a lower pressure than the refrigerant flowing through the set of first microchannels; and flowing a product through a set of third microchannels in the heat exchanger, the product exiting the set of third microchannels having a cooler temperature than the product entering the set of third microchannels. This process is suitable for liquefying gaseous products including natural gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.