Hydrogen sulfide scavengers
AssigneeEcolab USA Inc.
InventorsJeffery Caleb Clark, Matthew Trevino, Lawrence J. Karas, Julian M. Gallardo, III, Prakasa Anantaneni, Rafaela Carvalhal Passos, Christopher Burrell, Geeta Rana
Life of this patent
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Abstract
Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
Claims17
A method of removing a sulfur-containing compound from a stream, comprising:
- adding a composition to the stream comprising the sulfur-containing compound, the composition comprising a compound containing an amine group and a hemiacetal compound, wherein the compound containing the amine group comprises formula (I):
- wherein
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, alkylenyl, alkenylenyl, alkynylenyl, alkyl, alkenyl, alkynyl, and aryl, wherein said alkylenyl, alkenylenyl, alkynylenyl, alkyl, alkenyl, and alkynyl are each independently, at each occurrence, substituted or unsubstituted with one or more suitable substituents;
- k, l, and m are each independently an integer selected from the group consisting of 0 to 25, wherein k+l+m is ≥0;
- and
- x, y, and z are each independently an integer selected from the group consisting of 0 and 1, wherein x+y+z is 1 or 2;
- provided that:
- at least one of R1, R2 or R3 is aryl and at least one of R1, R2 or R3 is hydrogen.
A method of removing a sulfur-containing compound from a stream, comprising:
- adding a composition to the stream comprising the sulfur-containing compound, the composition comprising a compound containing an amine group and a hemiacetal compound, wherein the compound containing the amine group comprises formula (I):
- wherein
- k, l, and m are each 0;
- x, y, and z are each 1;
- R1 and R2 are both alkylenyl;
- and
- R3 is aryl.
A method of removing a sulfur-containing compound from a stream, comprising:
- adding a composition to the stream comprising the sulfur-containing compound, the composition comprising a compound containing an amine group and a hemiacetal compound, wherein the compound containing the amine group comprises the following formula:
Dependencies are inferred from the claim text.