Hydrogen sulfide scavengers

Patent metadata

Field	Value
Publication number	US-11339118-B2
Application number	US-202016817133-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Jan 30, 2013
Publication date	May 24, 2022
Grant date	May 24, 2022

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.

First claim

The invention claimed is:

1. A composition comprising a mixture of compounds of formula (I),

wherein R 1 , R 2 , and R 3 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;
wherein one of R 1 , R 2 , or R 3 must be hydrogen;
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, R 1 is hydrogen, alkyl, alkenyl, or alkynyl; and when x is 1, R 1 is alkylenyl, alkenylenyl, or alkynylenyl;
when y is 0, R 2 is hydrogen, alkyl, alkenyl, or alkynyl; and when y is 1, R 2 is alkylenyl, alkenylenyl, or alkynylenyl;
when z is 0, R 3 is hydrogen, alkyl, alkenyl, or alkynyl; and when z is 1, R 3 is alkylenyl, alkenylenyl, or alkynylenyl.

2. The composition of claim 1 , wherein x is 1, y is 1, z is 0, R 1 and R 2 are each alkylenyl, and R 3 is hydrogen.

3. A compound of formula (I),

wherein R 1 , R 2 , and R 3 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;
wherein one of R 1 , R 2 , or R 3 must be hydrogen;
wherein at least one of R 1 , R 2 , or R 3 is ethyl;
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, R 1 is hydrogen, alkyl, alkenyl, or alkynyl; and when x is 1, R 1 is alkylenyl, alkenylenyl, or alkynylenyl;
when y is 0, R 2 is hydrogen, alkyl, alkenyl, or alkynyl; and when y is 1, R 2 is alkylenyl, alkenylenyl, or alkynylenyl; and
when z is 0, R 3 is hydrogen, alkyl, alkenyl, or alkynyl; and when z is 1, R 3 is alkylenyl, alkenylenyl, or alkynylenyl.

Assignees

• Ecolab Usa Inc

Inventors

• Harrington Ryan Matthew
• Anantaneni Prakasa Rao
• Karas Lawrence J
• Ekoue-Kovi Kekeli

Classifications

• C10L3/103

  Sulfur containing contaminants · CPC title

• C10G2300/207

  Acid gases, e.g. H2S, COS, SO2, HCN · CPC title

• B01D2252/502

  having two or more functionalities in the same molecule other than alkanolamine · CPC title

• B01D53/1493

  Selection of liquid materials for use as absorbents · CPC title

• B01D2252/606

  Anticorrosion agents · CPC title