Back to results
US 10,336,950 B2Granted
Antifouling and hydrogen sulfide scavenging compositions and methods
AssigneeEcolab USA Inc.
InventorsMatthew Aaron Trevino, Jeffery Caleb Clark, Lawrence John Karas, Geeta Rana, Vyacheslav Boyarskikh
Life of this patent
Estimating the term…
Abstract
Disclosed herein are scavenging and antifouling 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 compositions as scavengers and antifoulants, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
Claims15
A composition, comprising:
- a Michael acceptor selected from the group consisting of acrylic acid, acrylamide, methacrylate, dimethyl maleate, crotonaldehyde, 3-butene-2-one, and any combination thereof;
- and
- one or more compounds of formula (I),
- wherein
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, alkylenyl, alkenylenyl, alkynylenyl, alkyl, alkenyl, and alkynyl, 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, 2, or 3;
- provided that:
- when x is 0, R1 is hydrogen, alkyl, alkenyl, or alkynyl;
- and when x is 1, R1 is alkylenyl, alkenylenyl, or alkynylenyl;
- when y is 0, R2 is hydrogen, alkyl, alkenyl, or alkynyl;
- and when y is 1, R2 is alkylenyl, alkenylenyl, or alkynylenyl;
- when z is 0, R3 is hydrogen, alkyl, alkenyl, or alkynyl;
- and when z is 1, R3 is alkylenyl, alkenylenyl, or alkynylenyl;
- and
- when x is 1, y is 1, z is 1, k is 1, l is 1, and m is 1, then R1, R2, and R3 are not simultaneously unsubstituted C2-alkylenyl.
14 more elements
A method, comprising:
- adding a composition to a fluid or gas, the composition comprising:
- a Michael acceptor and one or more compounds of formula (I),
- wherein
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, alkylenyl, alkenylenyl, alkynylenyl, alkyl, alkenyl, and alkynyl, 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, 2, or 3;
- provided that:
- when x is 0, R1 is hydrogen, alkyl, alkenyl, or alkynyl;
- and when x is 1, R1 is alkylenyl, alkenylenyl, or alkynylenyl;
- when y is 0, R2 is hydrogen, alkyl, alkenyl, or alkynyl;
- and when y is 1, R2 is alkylenyl, alkenylenyl, or alkynylenyl;
- and
- when z is 0, R3 is hydrogen, alkyl, alkenyl, or alkynyl;
- and when z is 1, R3 is alkylenyl, alkenylenyl, or alkynylenyl,
- wherein the Michael acceptor is selected from the group consisting of acrylic acid, acrylamide, methacrylate, dimethyl maleate, crotonaldehyde, 3-butene-2-one, and any combination thereof.
13 more elements
Dependencies are inferred from the claim text.