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US 10,633,602 B2Granted
Dissolution of hexamine in non-aqueous solvent
AssigneeEcolab USA Inc.
InventorKim R. Solomon
Life of this patent
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Abstract
The present disclosure generally relates to scavenging hydrogen sulfide. The disclosure pertains to non-aqueous and non-volatile compositions that include a monolignol alcohol and hydrogen sulfide scavenging compound. The hydrogen sulfide scavenging compound may be hexamine in some aspects. The compositions may also include a C2-8 polyol. The compositions disclosed are stable and can be used, for example, in removing hydrogen sulfide from hot asphalt.
Claims4
A method for scavenging hydrogen sulfide in an industrial process, comprising:
- adding an effective amount of a composition to a medium in the industrial process, wherein the composition comprises a monolignol alcohol and a compound of formula (I) or formula (II)
- where R1 is a substituted or unsubstituted C1-8 alkyl, a substituted or unsubstituted C2-8 alkenyl, or a substituted or unsubstituted C2-8 alkynyl, wherein the substituted C1-8 alkyl, the substituted C2-8 alkenyl, and the substituted C2-8 alkynyl are substituted with hydroxyl or C1-5 alkyl.
Dependencies are inferred from the claim text.