Naphthenic acid removal as an adjunct to liquid hydrocarbon swee

Details Naphthenic acid removal as an adjunct to liquid hydrocarbon swee Naphthenic acid removal as an adjunct to liquid hydrocarbon swee

1993-08-02

1995-02-14

Pal, Asok

Mineral oils: processes and products

Refining

Sulfur removal

208191, 208246, 208247, 208248, 208249, 208229, 585850, 585854, C10G 19073, C10G 2700, C07C 712

Patent

active

053892402

ABSTRACT:
Naphthenic acids may be efficiently and conveniently removed from liquid hydrocarbon feedstocks by passing such feedstocks through a bed of certain metal oxide solid solutions related to hydrotalcites. The removal of naphthenic acids is an important adjunct to sweetening sour feedstocks and is particularly applicable to kerosines whose acid numbers may range as high as about 0.8. The metal oxide solid solutions of our invention show high adsorption capacity and can readily remove at least 95% of the naphthenic acids present in a liquid hydrocarbon feedstock.

REFERENCES:
patent: 4744825 (1988-05-01), Chen et al.
patent: 4752397 (1988-06-01), Sood
patent: 4935146 (1990-06-01), O'Neill et al.
patent: 5055199 (1991-10-01), O'Neill et al.
patent: 5068095 (1991-11-01), Nigro et al.
patent: 5286372 (1994-02-01), Arena et al.
J. R. Salazar in "Handbook of Petroleum Refining Processes", R. A. Meyers, editor, pp. 9-3 to 9-13.

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