Guard bed material, its method of making and use
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United States of America Patent
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Jun 4, 2019
Grant Date -
Nov 23, 2017
app pub date -
Nov 11, 2015
filing date -
Dec 18, 2014
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Abstract
The present disclosure relates to a material preferably used in a guard bed, and having an increased capacity to adsorb catalyst poisons, as measured by collidine update at 200° C. The material is made by a method in which it is treated by being dried with a drying gas, preferably, at a temperature greater than about 200° C. The treated material may be used to remove impurities from untreated feed streams to, for example, aromatic alkylation and transalkylation processes, where such impurities act as catalyst poisons that cause deactivation of the acidic molecular sieve-based catalysts used, thereby increasing the cycle length of such catalysts.
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