Asphaltene-inhibiting method using aromatic polymer compositions
AssigneeEcolab USA Inc.
InventorsOmer Gul, Michael L. Braden, Ashish Dhawan
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Abstract
The present invention generally relates to nonylphenol-free alkoxylated 4-(alkyloxy)phenol/aldehyde resins and processes for making alkoxylated 4-(alkyloxy)phenol/aldehyde resins. The invention also relates to methods of breaking emulsions of oil and water comprising the dosing of an effective amount of an emulsion breaker composition into a stable emulsion to destabilize the emulsion, wherein the emulsion breaker composition comprises an alkoxylated 4-(alkyloxy)phenol/aldehyde resin.
Claims20
A method for dispersing asphaltene in an asphaltene-containing hydrocarbon comprising contacting the asphaltene-containing hydrocarbon with an asphaltene-inhibiting composition comprising a polymer corresponding in structure to Formula (1):
- wherein:
- R3 and R5 are independently hydrogen, C1-C22 alkyl, or alkyloxy;
- R4 is C4-C22 alkyl;
- R6 is hydrogen, alkyl, aryl, or arylalkyl;
- X is —O— or —NR8;
- R8 is hydrogen or C1-C4 alkyl;
- and
- m is an integer from 4 to 75.
Dependencies are inferred from the claim text.