Methods and Compositions for Scavenging Sulfides from Hydrocarbon Fluids and Aqueous Streams
AssigneeNexgen Oilfield Chemicals, LLC
InventorsJames Begeal, Chris Williamson, Ali Yousef
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Abstract
Embodiments of a composition of the present invention for scavenging sulfides from hydrocarbon fluids and water generally include diaminol/diaminacetal provided in a chemical system, wherein the diaminol/diaminacetal is prepared by reacting one molar equivalent of glyoxal and two molar equivalents of a primary amine functionality. In various embodiments, the chemical system includes at least one component selected from surfactants, hydrotropes, alcohols, amines, amino acids, and ethers. Embodiments of a method for scavenging sulfides from hydrocarbon fluids and water is also provided.
Claims52
A composition for scavenging sulfides comprising;
- an aminol;
- wherein:
- said composition is employable for scavenging sulfides from a hydrocarbon fluid and/or an aqueous liquid.
A composition for scavenging sulfides comprising an aminacetal.
A composition for scavenging sulfides, said composition produced by the reaction of one or more aldehydes in an aqueous solution with one or more primary amines and/or secondary amines, wherein the molar quantity of amine functional groups is equal to at least the molar quantity of aldehyde functional groups, wherein the water present in the aqueous reaction medium and water produced by said reaction between said one or more aldehydes and said one or more primary amines and/or secondary amines is maintained in the composition.
An improved composition for scavenging sulfides from a hydrocarbon fluid medium or an aqueous liquid medium, comprising:
- at least one compound selected from the group consisting of:
- an aminol;
- a diaminol;
- an aminacetal;
- and
- a diaminacetal;
- the improvement comprising a sulfide scavenging composition, that, both before and after reacting with said sulfides, does not form solids.
A method of scavenging sulfides from a contained hydrocarbon fluid medium or a contained aqueous medium, comprising:
- providing a scavenging composition comprising at least one compound selected from the group consisting of:
- an aminol;
- a diaminol;
- an aminacetal;
- and
- a diaminacetal;
- and
- introducing said scavenging composition to said contained hydrocarbon fluid medium or said contained aqueous medium, whereby at least one said compound reacts with said sulfides, and wherein said composition, both before and after said reaction with said sulfides, does not form solids.
Dependencies are inferred from the claim text.