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US 11,946,008 B2Granted
Compositions and methods for scavenging hydrogen sulfide
AssigneeNexgen Oilfield Chemicals, LLC
InventorsJames Begeal, Chris Williamson, Ali Yousef, Dallas Watson
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Abstract
This invention provides compositions and methods that inhibit formation of alkenyl sulfide polymers and allow the hydrogen sulfide to be removed when scavenging hydrogen sulfide by reaction with aldehydes.
Claims12
A method for scavenging hydrogen sulfide, the method comprising:
- forming a treatment solution by combining ingredients comprised of
- a) an aldehyde and/or aldehyde releaser
- b) ethylamine, and
- c) an alcohol;
- contacting a stream containing hydrogen sulfide with the treatment solution to form
- a treated stream and a spent scavenger solution phase,
- wherein the amount of ethylamine used to form the treatment solution is in the range of 0.2 molar to less than one molar equivalent in relation to the total amount of aldehyde provided by a) and
- wherein the spent scavenger solution phase does not comprise solid polymer waste products.
5 more elements
A method for scavenging hydrogen sulfide, the method comprising
- forming a treatment solution by combining ingredients consisting essentially of
- a) an aldehyde and/or aldehyde releaser and
- b) ethylamine, and
- c) an alcohol;
- contacting a stream containing hydrogen sulfide with the treatment solution to form a treated stream and a spent scavenger solution phase,
- wherein the amount of ethylamine used to form the treatment solution is in the range of about 0.2 molar to less than one molar equivalent in relation to the total amount of aldehyde provided by a) and
- wherein the spent scavenger solution phase does not comprise solid polymer waste products.
4 more elements
Dependencies are inferred from the claim text.