Method and system for the in-situ removal of carbonaceous deposits from heat exchanger tube bundles
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United States of America Patent
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Nov 7, 2017
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N/A
app pub date -
Feb 26, 2014
filing date -
Feb 26, 2013
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Abstract
The present invention comprises a method and system for the in-situ cleaning of a heat exchanger tube bundle of carbonaceous deposits. Using the method and system, an organic solvent is brought into fluid communication with one or more heat exchanger tube bundles in a closed system. The closed system is formed at the site of operation of the heat exchanger tube bundles and without having to remove the heat exchanger tube bundles from their shells or other associated equipment. Once the closed system is formed, the organic solvent is brought to a temperature at which it is effective to remove carbonaceous deposits from the heat exchanger tube bundle and flowed through the equipment associated with the heat exchanger tube bundles so as to contact the heat exchanger tube bundles and remove carbonaceous deposits that have formed therein. In some embodiments, the spent organic solvent may be recovered, such as through the removal of suspended hydrocarbons, and reused in the method and system for cleaning heat exchanger tube bundles.
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