Suppression of the evolution of hydrogen sulfide gases

Details Suppression of the evolution of hydrogen sulfide gases Suppression of the evolution of hydrogen sulfide gases

1990-05-18

1991-12-24

Myers, Helane E.

Mineral oils: processes and products

Refining

Sulfur removal

208 14, 208 47, 208348, 208370, 44333, 44340, 44353, 44432, 44433, 210749, 210750, 210757, 210758, 252148, 252390, 252394, C10G 2920

Patent

active

050749919

ABSTRACT:
Hydrogen sulfide gas evolution from water or hydrocarbons, especially during storage or transport of petroleum residua is suppressed by the incorporation of an effective amount of a diamine of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently an alky radical containing 1 to 14 carbon atoms, (CH.sub.2).sub.n --OR.sub.6 or cycloalkyl containing 5 or 6 carbon atoms and R.sub.5 is hydrogen or methyl. R.sub.1 and R.sub.2 and R.sub.3 and R.sub.4 can be alkylene groups joined together with their respective adjacent N to form a heterocyclic ring. R.sub.6 is hydrogen or an alkyl radical having 1 to 5 carbon atoms and n is an integer of 1 to 5.

REFERENCES:
patent: 3816333 (1974-06-01), King et al.
patent: 3928211 (1975-12-01), Browning et al.
patent: 4350600 (1982-09-01), Sharp et al.
patent: 4460482 (1984-07-01), Wu
patent: 4900458 (1990-02-01), Schroeder
patent: 4938925 (1990-07-01), Peterson
patent: 4957640 (1990-09-01), Treybig et al.
patent: 4978366 (1990-12-01), Weers

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