Process for cooling a product in a heat exchanger employing microchannels for the flow of refrigerant and product
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United States of America Patent
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Sep 23, 2003
Grant Date -
N/A
app pub date -
Aug 15, 2002
filing date -
Aug 15, 2002
priority date (Note) -
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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.
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