Process for increasing the mono-aromatic content of polynuclear-aromatic-containing feedstocks
US8142645B2 · kind B2 · utility
24Cited by
199References
24Claims
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Key dates
| Filing date | Jan 3, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Apr 6, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocarbons containing polynuclear aromatics, such as cycle oil and pyrolysis fuel oil (PFO), are upgraded using an catalyst complex that selectively cracks the polynuclear aromatic compounds to form higher value mono-aromatic compounds, such as benzene toluene, xylenes and ethyl benzene (i.e., BTX). The catalyst complexes include a catalytic metal center and a plurality of organic ligands. During the hydrocracking procedure, the organic ligand preserves one of the aromatic rings of the polynuclear aromatic compounds while the catalytic metal breaks the other aromatic rings thereby yielding a monoaromatic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.