Mineral oils: processes and products – Refining – Sweetening
Patent
1993-02-22
1994-09-06
Myers, Helane
Mineral oils: processes and products
Refining
Sweetening
208207, 208208R, 208236, 208237, C10G 2920
Patent
active
053445554
ABSTRACT:
Sour sulfhydryl group containing oils are treated with an effective amount of a sweetening, hydrogen sulfide vapor reducing quaternary ammonium compound of the formula ##STR1## (a) wherein (i) R.sup.1, R.sup.2 and R.sup.3 are hydrocarbon groups including alkyl, aryl, alkaryl or arylalkyl groups, of up to 24 carbon atoms, and if an alkyl group, may include a cycloalkyl; with the proviso that two of R.sup.1, R.sup.2 and R.sup.3 may be in saturated heterocyclic ring which includes said nitrogen atom and may also include an oxygen atom; and (ii) at least one of R.sup.1, R.sup.2 and R.sup.3 has two or more carbon atoms; and (b) wherein R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently are hydrogen or a hydrocarbon group of up to six carbon atoms, with the proviso that two of R.sup.4, R.sup.5, R.sup.6 and R.sup.7 may be in a cycloalkane ring. The compounds used in this treatment are especially suitable for high boiling, heavy residual fuels under low mix conditions.
REFERENCES:
patent: 4594147 (1986-06-01), Roof et al.
patent: 4867865 (1989-09-01), Roof
patent: 4929340 (1990-05-01), Pollastrini et al.
Kremer Lawrence N.
Market Robert V.
Roof Glenn L.
Baker Hughes Incorporated
Griffin Walter D.
Myers Helane
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