C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 67/06 (2006.01)
Patent
CA 2668842
A feedstream to a hydrocracking unit is treated to remove or reduce the content of polynuclear aromatics and nitrogen-containing compounds by contacting the feedstream with an adsorbent compound selected from attapulgus clay, alumina, silica gel and activated carbon in a fixed bed or slurry column and separating the treated feedstream that is lower in the undesired compounds from the adsorbent material. The adsorbent can be mixed with a solvent for the undesired compounds and stripped for re-use.
Selon l'invention, un courant d'alimentation d'une unité d'hydrocraquage est traité pour éliminer ou réduire la teneur en aromatiques polynucléaires et en composés contenant de l'azote en mettant le courant en contact avec un composé adsorbant choisi parmi l'argile attapulgite, l'alumine, le gel de silice et le charbon actif dans une colonne à lit fixe ou à suspension, et en séparant le courant traité avec une teneur inférieure en composés indésirables du matériau adsorbant. L'adsorbant peut être mélangé à un solvant pour les composés indésirables et extrait pour être réutilisé.
Ridout & Maybee Llp
Saudi Arabian Oil Company
LandOfFree
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