Many crude oils and residues contain V, Ni porphyrins not allowing economical cracking into smaller MW chemicals for high octane fuels; plastic monomers. We present a cleaning reagent; polyethylene glycol-myoglobin-cellulose, which selectively removes  up to 22% of V, Ni porphyrins from a 350�C  residue. The reagent is stable in viscous residue blends with kerosene at  RT and high pressure. After separation from the cleaned residue, the porphyrin binding capability of the cleaning reagent was easily regenerated with acidified acetone. The recycled reagent removed V, Ni porphyrins as shown by ICP-MS, UV-visible spectroscopy of the cleaned residue and acetone wash. Conditions have not been optimized and systematic study of the system will enhance results, especially oils.

Vanadium and nickel porphyrin removal from refinery residual under mild conditions

243rd National Meeting (2012)

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