Optimization of a cooling water system of a polyolefin production unit
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United States of America Patent
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May 22, 2001
Grant Date -
N/A
app pub date -
Jun 25, 1999
filing date -
Dec 31, 1996
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Abstract
The invention relates to a process for cooling polymerization reactors in the preparation of polyolefins, the polymerization being carried out in a first reactor and in at least one further reactor, the further reactor or reactors being connected downstream of the first reactor and each being cooled by an internal cooling circuit in which a cooling medium circulates. The invention comprises feeding cooling medium from the cooling circuit (9) of the first reactor (1) into the cooling circuit (10) of at least one further reactor (2) and taking off the same amount of cooling medium from the cooling circuit (10) of this reactor (2), cooling it and recirculating it into the cooling circuit (9) of the first reactor (1).
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