Two-stage diesel aromatics saturation process utilizing intermediate stripping and base metal catalyst
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United States of America Patent
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Jun 20, 2017
Grant Date -
Nov 20, 2014
app pub date -
May 19, 2014
filing date -
May 20, 2013
priority date (Note) -
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Abstract
A process for making high cetane diesel. The process includes contacting a distillate feedstock in a hydrodenitrogenation and polyaromatics saturation zone and passing the resulting treated effluent to a high pressure stripping zone. The stripped liquid fraction from the high pressure stripping zone is contacted with a base metal catalyst under monoaromatics saturation conditions to yield a reactor product. The reactor product undergoes a separation to provide a hydrogen portion and a dearomatized distillate portion with the hydrogen portion being recycled and introduced into the high pressure stripping zone.
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