Decalcification of refinery hydrocarbon feedstocks

Details Decalcification of refinery hydrocarbon feedstocks Decalcification of refinery hydrocarbon feedstocks

2008-07-15

2008-07-15

Nguyen, Tam M (Department: 1797)

Mineral oils: processes and products

Refining

Metal contaminant removal

C208S252000, C208S253000

Reexamination Certificate

active

10837806

ABSTRACT:
A process for removing metal contaminants, particularly calcium, from hydrocarbon feedstocks is disclosed. The process comprises mixing the feedstocks with an effective metal removing amount of an aqueous solution of one or more water-soluble poly(acrylic acid) derivatives to form an aqueous phase containing the metal ions and a hydrocarbon phase and separating the hydrocarbon phase from the aqueous phase.

REFERENCES:
patent: 4541918 (1985-09-01), Stapp
patent: 5660717 (1997-08-01), Lindemuth
patent: 6103100 (2000-08-01), Hart

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