Algal-based corrosion inhibitor compositions and methods thereof

Patent metadata

Field	Value
Publication number	US-2025368894-A1
Application number	US-202418679947-A
Country	US
Kind code	A1
Filing date	May 31, 2024
Priority date	May 31, 2024
Publication date	Dec 4, 2025
Grant date	—

Abstract

Methods for using algal-based corrosion inhibitor compositions may comprise providing a corrosion inhibitor composition comprising an amidation reaction product of a dopamine and a triglyceride; contacting a metal surface with the corrosion inhibitor composition; and allowing the corrosion inhibitor composition to interact with the metal surface so as to inhibit corrosion of the metal surface.

First claim

The invention claimed is:

1 . A method comprising:
providing a corrosion inhibitor composition comprising an amidation reaction product of a dopamine and a triglyceride; contacting a metal surface with the corrosion inhibitor composition; and allowing the corrosion inhibitor composition to interact with the metal surface so as to inhibit corrosion of the metal surface.

2 . The method of claim 1 , wherein at least a portion of the dopamine is derived from a macroalgae.

3 . The method of claim 2 , wherein the macroalgae comprises a Chlorophyta.

4 . The method of claim 3 , wherein the Chlorophyta comprises an Ulvaria obscura.

5 . The method of claim 1 , wherein at least a portion of the triglyceride is derived from a vegetable oil.

6 . The method of claim 5 , wherein the vegetable oil comprises a palm oil.

7 . The method of claim 1 , wherein the amidation reaction product comprises Formula (I);

wherein R is an optionally unsaturated hydrocarbyl.

8 . The method of claim 7 , wherein the optionally unsaturated hydrocarbyl is a C 10 -C 30 alkane or a C 10 -C 30 alkene.

9 . The method of claim 1 , wherein the set of reaction conditions comprises a reaction temperature of about 75° C. to about 150° C. and a residence time of about 1 hour to about 5 hours.

10 . A method comprising:
providing a dopamine and a triglyceride; interacting the dopamine with the triglyceride at a set of reaction conditions;
wherein a molar ratio of the dopamine to the triglyceride is about 1:4 to about 4:1; and
obtaining an amidation reaction product.

11 . The method of claim 10 , wherein at least a portion of the dopamine is derived from a macroalgae and at least a portion of the triglyceride is derived from a vegetable oil.

12 . The method of claim 11 , wherein the macroalgae comprises a Chlorophyta comprising an Ulvaria obscura.

13 . The method of claim 11 , wherein the vegetable oil comprises a palm oil.

14 . The method of claim 10 , wherein the amidation reaction product comprises Formula (I);

wherein R is an optionally unsaturated hydrocarbyl.

15 . A composition comprising:
an amidation reaction product of a dopamine and a triglyceride.

16 . The composition of claim 15 , wherein at least a portion of the dopamine is derived from a macroalgae.

17 . The composition of claim 16 , wherein the macroalgae comprises a Chlorophyta.

18 . The composition of claim 15 , wherein at least a portion of the triglyceride is derived from a vegetable oil comprising a palm oil.

19 . The composition of claim 15 , wherein the amidation reaction product comprises

wherein R is an optionally unsaturated hydrocarbyl.

20 . The composition of claim 19 , wherein the optionally unsaturated hydrocarbyl is a C 10 -C 30 alkane or a C 10 -C 30 alkene.

Assignees

• Saudi Arabian Oil Co

Inventors

• Oduro Harry Daniel

Classifications

• C07C233/27

  having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton · CPC title

• C07C231/02

  from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines · CPC title

• C09K15/24 Primary

  containing a phenol or quinone moiety · CPC title

• C23F11/10

  using organic inhibitors · CPC title

• C23F11/145

  Amides; N-substituted amides · CPC title