Process for removal of nitrogen and poly-nuclear aromatics from hydrocracker feedstocks
US7763163B2 · kind B2 · utility
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33References
9Claims
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Key dates
| Filing date | Nov 6, 2006 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Jun 13, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G67/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
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.
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