Method of preventing or reducing polymer agglomeration on grid in fluidized-bed reactors
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United States of America Patent
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Mar 6, 2012
Grant Date -
Aug 27, 2009
app pub date -
Feb 27, 2008
filing date -
Feb 27, 2008
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Abstract
A process for preventing or reducing polymer agglomeration and/or accumulation on or around the gas distribution grid in an olefin polymerization, fluidized-bed reactor. The process involves introducing one or more scouring balls into the reactor above the gas distribution grid, and carrying out olefin polymerization in the presence of the scouring balls. Also disclosed is a process for polymerizing olefins in a fluidized-bed reactor with reduced polymer agglomeration and/or accumulation on the gas distribution grid.
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