Method for treating vertical tubes in a chemical reactor
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United States of America Patent
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Jun 17, 2014
Grant Date -
Dec 25, 2008
app pub date -
Aug 29, 2008
filing date -
Mar 16, 2001
priority date (Note) -
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Abstract
A device and method for removing particles, such as catalyst, from a chemical reactor tube by inserting a hollow tube body into the bottom end of a vertical tube, sealing between the hollow tube body and the vertical tube, blowing a gas through the hollow tube body into the bottom of the vertical tube, and vacuuming the top of the vertical tube while continuing to introduce gas into the bottom of the vertical tube.
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