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US 2014/0213668 A1Published application
Alkoxylated sorbitan esters as crude oil emulsion breakers
AssigneeEcolab USA Inc.
InventorG. Richard Meyer
Life of this patent
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Abstract
Disclosed herein are alkoxylated sorbitan ester compounds and compositions useful in emulsion breaking 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 emulsion breakers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
Claims18
An alkoxylated sorbitan ester of formula (I),
- wherein,
- R1 is selected from the group consisting of alkyl, alkenyl, and alkynyl;
- R2, R3, and R4 are each independently selected from the group consisting of hydrogen, alkyl, alkenyl, and alkynyl;
- x1+x2+x3=x=0.2 to 75;
- and
- y1+y2+y3=y=0 to 250.
3 more elements
An alkoxylated sorbitan ester of formula (II),
- wherein
- R1 is selected from the group consisting of alkyl, alkenyl, and alkynyl;
- R2, R3, and R4 are each independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocyclyl;
- and
- X, Y, and Z, are each independently selected from the group consisting of a bond, a chain consisting of repeating units of formula (a), a chain consisting of repeating units of formula (b), and a chain consisting of a mixture of repeating units of formula (a) and formula (b),
- provided that at least one of X, Y, and Z is other than a bond;
- and
- provided that the compound of formula (II) comprises at least one repeating unit of formula (a) and at least one repeating unit of formula (b).
5 more elements
Dependencies are inferred from the claim text.