Patent ID: 8012913

Claim:
A composition for converting noxious sulfur species to high molecular weight sulfur species comprising an effective amount of at least one compound having the general formula (I): where: the N—R—N moiety is derived from a diamine, the R′CH moieties are derived from an aldehyde, the R″N moieties are derived from a primary amine, R is an alkenyl group, cycloalkenyl or arenyl group having between about 1 and about 20 carbon atoms, where one or more of the carbon atoms can be oxygen atoms in the form of carboxy, hydroxy and/or ether moieties and/or nitrogen atoms can be in the form of tertiary amine or amide moieties, R′ and R″ are the same or different carbon-containing groups having between about 1 and about 20 carbon atoms, where one or more of the carbon atoms can be oxygen atoms in the form of carboxy, hydroxy and/or ether moieties or nitrogen atoms in the form of tertiary amine and/or nitrogen-containing groups in the form of amide moieties, k, l, m and n are integers, each having a value ranging from 1 to 2, and the effective amount is between about 0.5 ppm and about 500 ppm of the at least one compound of formula (I), and the composition liberates substantially no aldehyde upon heating, the composition includes no or only trace amount of triazines and the composition has a tri-phasic partitioning property so that the composition has a sufficient partitioning concentration in a tri-phase system comprising a gas phase, a hydrocarbon phase and an aqueous phase reducing noxious sulfur species, reducing to a given level noxious sulfur species or reducing below a given detectable limit noxious sulfur species simultaneously in all three phases of the tri-phase system.