Low-pressure process utilizing a stacked-bed system of specific catalysts for the hydrotreating of a gas oil feedstock
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United States of America Patent
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Aug 2, 2016
Grant Date -
Oct 16, 2014
app pub date -
Apr 9, 2014
filing date -
Apr 11, 2013
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Abstract
A low-pressure process for hydrodenitrogenation and hydrodesulfurization of a gas oil feedstock. The process uses a multi-bed, stacked-bed reactor system. The first and third beds of the multi-bed, stacked-bed reactor system include catalysts that comprise cobalt and molybdenum supported on alumina. The middle, second bed, includes a catalyst comprising nickel and molybdenum supported on alumina that preferably includes an additive. The stacked bed arrangement with the use of the specific catalysts provides for the low-pressure operation and significantly improved HDN and HDS activity with relatively insignificant differences in hydrogen consumption.
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