Composition and method for abating fouling by low-density inorganic, organic and inorganic-organic hybrid foulants in hydrocarbon processes

Patent metadata

Field	Value
Publication number	US-2025115811-A1
Application number	US-202418894525-A
Country	US
Kind code	A1
Filing date	Sep 24, 2024
Priority date	Oct 5, 2023
Publication date	Apr 10, 2025
Grant date	—

Abstract

The disclosure provides compositions and methods for reducing fouling of a surface in contact with a medium during a natural gas processing procedure. Methods may include adding a composition to the medium, wherein the medium includes an inorganic particle, an organic particle, and/or an inorganic-organic particle, and the composition includes a surfactant. The surfactant may encapsulate the particle. The surfactant may include, for example, a phthalate ester, a naphthalate ester, a tall oil fatty acid, a soya oil fatty acid, sunflower oil fatty acid, canola oil fatty acid, coconut oil fatty acid, cyrene, a trigylceride, or any combination thereof.

First claim

What is claimed is:

1 . A method of reducing fouling of a surface in contact with a medium during a natural gas processing procedure, comprising:
adding a composition to the medium, wherein the medium comprises an inorganic particle, an organic particle, and/or an inorganic-organic particle, and the composition comprises a surfactant; and encapsulating the particle.

2 . The method of claim 1 , wherein the surfactant comprises a phthalate ester, a naphthalate ester, a tall oil fatty acid, a soya oil fatty acid, sunflower oil fatty acid, canola oil fatty acid, coconut oil fatty acid, avocado oil fatty acid, corn oil fatty acid, cottonseed oil fatty acid, grape seed oil fatty acid, hazelnut oil fatty acid, hemp seed oil fatty acid, linseed oil fatty acid, olive oil fatty acid, palm kernel oil fatty acid, peanut seed oil fatty acid, rape seed oil fatty acid, rice bran oil fatty acid, safflower oil fatty acid, sesame oil fatty acid, walnut oil fatty acid, cyrene, a trigylceride, and any combination thereof.

3 . The method of claim 2 , wherein the phthalate ester comprises monomethyl phthalate, monoethyl phthalate, monononyl phthalate, monododecyl phthalate, monoundecyl phthalate, dimethyl phthalate, diethyl phthalate, dinonyl phthalate, didodecyl phthalate, diundecyl phthalate, monophenyl phthalate, monobenzyl phthalate, diphenyl phthalate, dibenzyl phthalate, or a combination thereof.

4 . The method of claim 1 , wherein the composition further comprises a dispersant, wherein the dispersant is an amide, imide, ester, or acid reaction product of a succinic anhydride with a pendant hydrocarbon and an amine having at least one primary amine group, an alcohol, or water.

5 . The method of claim 4 , wherein the pendant hydrocarbon is selected from the group consisting of an alkyl group, an aryl group, an aryl alkyl group, an alkyl aryl group, an alkenyl group, an alkenyl aryl group, and an aryl alkenyl group comprising between about 6 and about 50 carbon atoms.

6 . The method of claim 4 , wherein the reaction product comprises a monoamide, a diamide, a triamide, an imide, an ester, or any combination thereof.

7 . The method of claim 4 , wherein the amide reaction product has a weight average molecular weight ranging from about 400 Da to about 2,000 Da.

8 . The method of claim 4 , wherein the composition comprises from about 1 wt. % to about 50 wt. % of the dispersant.

9 . The method of claim 1 , wherein the surfactant is an anionic surfactant.

10 . The method of claim 1 , wherein the composition is added to the medium continuously or intermittently.

11 . The method of claim 1 , wherein the composition is added before an inlet separator vessel, after an inlet separator vessel, before a condensate stabilizer unit, after a condensate stabilizer unit, before a condensate reboiler, or any combination thereof.

12 . The method of claim 1 , wherein the medium comprises a hydrocarbon condensate stream.

13 . The method of claim 1 , further comprising transporting the medium to a condensate stabilizer and heating the medium to between about 100° C. and 115° C.

14 . The method of claim 1 , wherein the composition comprises a boiling point greater than about 50° C.

15 . The method of claim 1 , wherein the inorganic particle comprises an iron sulfide, an iron carbonate, an iron oxide, or any combination thereof, and/or wherein the organic particle comprises an asphaltene, a coke solid, a gum or any combination thereof.

16 . The method of claim 1 , wherein the composition is added in an amount from about 1 ppm to 50 , 000 ppm.

17 . The method of claim 1 , further comprising adding the composition to the surface.

18 . The method of claim 1 , further comprising adding to composition into a condensate stream comprising the surface.

19 . The method of claim 1 , wherein the composition comprises from about 5 wt. % of the surfactant to about 100 wt. % of the surfactant.

20 . The method of claim 1 , wherein a reboiler comprises the surface.

Assignees

• Ecolab Usa Inc

Inventors

• Masere Jonathan
• Syed Abuzar
• Dhawan Ashish

Classifications

• C10L2230/08

  Inhibitors · CPC title

• C10L3/10

  Working-up natural gas or synthetic natural gas · CPC title

• C09K23/12

  Sulfonates of aromatic or alkylated aromatic compounds · CPC title

• C09K23/22

  Amides or hydrazides · CPC title

• C10L2290/141

  of additive or catalyst · CPC title