Scavenging hydrogen sulfide

摘要

Alpha-hydroxy alkyl esters have been found to perform as hydrogen sulfide scavengers. A method of scavenging hydrogen sulfide includes contacting a fluid containing hydrogen sulfide with a treatment fluid including an alpha-hydroxy alkyl ester. Accordingly, the alpha-hydroxy alkyl ester reacts with the hydrogen sulfide to reduce the amount of hydrogen sulfide in the fluid. A broad range of alpha-hydroxy alkyl esters are disclosed.

主权项

1. A method of reducing the amount of hydrogen sulfide in a hydrocarbon-containing fluid, the method comprising:
contacting the hydrocarbon-containing fluid with a treatment fluid including at least one alpha-hydroxy alkyl ester, wherein the hydrogen sulfide reacts with the alpha-hydroxy alkyl ester to reduce an amount of the hydrogen sulfide in the hydrocarbon-containing fluid; and wherein the alpha-hydroxy alkyl ester is selected from the group consisting of bis(hydroxymethyl) maleate; (2E, 4E)-hydroxymethyl hexa-2,4-dienoate; (E)-hydroxymethyl but-2-enoate; (E)-bis(hydroxymethyl) O,O′-(2-hydroxypropane-1,3-diyl) difumarate; hydroxymethyl 6-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanoate; and a combination thereof.