Paraffin suppressant compositions and methods
AssigneeEcolab USA Inc.
InventorsKousik Kundu, Susan Amy Garner
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Abstract
Disclosed herein are paraffin suppressant compositions, and methods of making and using them. The compositions comprise a paraffin inhibitor, a hydrocarbon-soluble hydrotrope equivalent, and optionally one or more additional paraffin dispersants. When added to hydrocarbon media such as crude oils to form crude oil compositions, the suppressant compositions inhibit the precipitation of paraffin waxes in the crude oil compositions. The suppressant compositions, added to hydrocarbon media such as hydrocarbon solvents or crude oils, exhibit reduced precipitation, gelling, and/or crystallization of paraffin inhibitor from the hydrocarbon media, when the media are subjected to sustained temperatures between 4° C. and −60° C.
Claims20
A paraffin suppressant composition comprising:
- a hydrocarbon-soluble organic-ammonium salt of an alkylbenzene sulfonic acid, wherein the organic-ammonium is selected from primary, secondary, tertiary, or quaternary organic-ammonium;
- and
- a paraffin inhibitor comprising a polymer comprising one or more residues of an imide having the formula (I), a compound having formula (Ia), an ester having formula (XV), or a combination thereof
- and one or more residues of α-olefin having formula (II)
- wherein each R1 is C10 to C30 alkyl, R2 is C10-C50 alkyl, each R9 and R10 is individually selected from hydrogen or a C10-C50 alkyl, each R15 and each R16 is individually selected from hydrogen and C1-C50 alkyl wherein at least one of each R15 and R16 is hydrogen, and X is —OH or a conjugate base thereof, —NHR1, —N(R1)2, or —OR1.
Dependencies are inferred from the claim text.