Demulsifying compositions and methods of use
AssigneeBl Technologies, Inc.
InventorsCato Russell Mcdaniel, Venkatesan Mani, Nimeshkumar Kantilal Patel, Mohan Kr, Kurt Jason Ginsel, Karl Douglas Kuklenz, Roberto Manuel Gutierrez
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Abstract
Methods for resolving emulsions in a hydrocarbon stream by contacting the hydrocarbon stream with a demulsifying composition are disclosed. Demulsifying compositions for treating a hydrocarbon stream are also disclosed, wherein the demulsifying composition comprises at least one C4-C12 alkyl phenol-formaldehyde resin alkoxylate.
Claims24
A demulsifying composition for treating a hydrocarbon stream comprising a crude oil, the demulsifying composition comprising at least one C4-C12 alkyl phenol-formaldehyde resin alkoxylate, an oil phase, an aqueous phase, and a dispersant, wherein said demulsifying composition is colloidal, wherein said oil and aqueous phases form a colloidal micellar solution, wherein said demulsifying composition comprises 0.1 wt % to about 90 wt % water based on a total weight of said demulsifying composition, and wherein said dispersant has the following formula:
- wherein R is a polyisobutenyl moiety and wherein the dispersant has a weight average molecular weight, Mw, from about 20,000 to about 25,000.
A demulsifying composition for treating a hydrocarbon stream comprising a crude oil, the demulsifying composition comprising at least two C4-C12 alkyl phenol-formaldehyde resin alkoxylates, an oil phase, and an aqueous phase, wherein said demulsifying composition is colloidal and said oil and aqueous phases form a colloidal micellar solution, wherein said demulsifying composition comprises 0.1 wt % to about 90 wt % water based on a total weight of said demulsifying composition and wherein said at least two C4-C12 alkyl phenol-formaldehyde resin alkoxylates have different amounts of alkoxylation, and wherein the at least two alkyl phenol-formaldehyde resin alkoxylates comprise a first alkyl phenol-formaldehyde resin alkoxylate, having a percent A by weight of alkoxylation, and a second alkyl phenol-formaldehyde resin alkoxylate, having a percent B by weight of alkoxylation, wherein A minus B is 10-50%, and wherein the ratio by weight of the first alkyl phenol-formaldehyde resin alkoxylate relative to the second alkyl phenol-formaldehyde resin alkoxylate is 1:9 to 9:1, and wherein at least one C4-C12 alkyl phenol-formaldehyde resin alkoxylate is a nonylphenol formaldehyde resin alkoxylate having a polymerization number of about 8-9 and 55% ethylene oxide by weight.
Dependencies are inferred from the claim text.