In-line chemical heating for in-situ generation of active chemicals

Patent metadata

Field	Value
Publication number	US-10647928-B2
Application number	US-201816193066-A
Country	US
Kind code	B2
Filing date	Nov 16, 2018
Priority date	Nov 20, 2017
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

Methods and systems for converting inactive chemicals into active chemicals in-situ for treating oil and gas pipelines, other industrial systems, or sanitizing surfaces. Also, methods of treating an oil and gas pipeline including feeding an inactive additive through a first conduit and into a second conduit, the second conduit is in fluid communication with the first conduit and the oil and gas pipeline. The inactive additive is converted into an active additive within the second conduit and introduced into the oil and gas pipeline.

First claim

What is claimed is:

1. A method of treating an oil and gas pipeline, comprising:
feeding an inactive additive through a first conduit and into a second conduit, wherein the second conduit is in fluid communication with the first conduit and is connected to the oil and gas pipeline;
converting the inactive additive into an active additive within the second conduit; and
introducing the active additive into the oil and gas pipeline, wherein the inactive additive is selected from the group consisting of glycerol, methanol, triazine, hexamethylenetetramine, and any combination thereof.

2. The method of claim 1 , wherein the active additive is acrolein, formaldehyde, ammonia, or any combination thereof.

3. The method of claim 1 , wherein converting the inactive additive into the active additive comprises heating the second conduit.

4. The method of claim 1 , wherein converting the inactive additive into the active additive comprises heating a medium flowing through the second conduit to a temperature of from about 50° C. to about 500° C.

5. The method of claim 1 , wherein the second conduit comprises a one-way valve.

6. The method of claim 1 , wherein the second conduit comprises a catalyst.

7. The method of claim 1 , wherein the second conduit comprises a heating device.

8. The method of claim 1 , further comprising determining a temperature of a medium flowing through the second conduit.

9. A method of treating an oil and gas pipeline, comprising:
feeding an inactive additive through a first conduit and into a second conduit, wherein the second conduit is in fluid communication with the first conduit and is connected to the oil and gas pipeline;
converting the inactive additive into an active additive within the second conduit; and
introducing the active additive into the oil and gas pipeline, wherein converting the inactive additive into the active additive comprises heating the second conduit.

10. A method of treating an oil and gas pipeline, comprising:
feeding an inactive additive through a first conduit and into a second conduit, wherein the second conduit is in fluid communication with the first conduit and is connected to the oil and gas pipeline;
converting the inactive additive into an active additive within the second conduit; and
introducing the active additive into the oil and gas pipeline, wherein the second conduit comprises a catalyst.

Assignees

• Ecolab Usa Inc

Inventors

• Moloney Jeremy

Classifications

• A01N31/02

  Acyclic compounds · CPC title

• C10G2300/207

  Acid gases, e.g. H2S, COS, SO2, HCN · CPC title

• A01N35/02

  containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals · CPC title

• C23F15/00

  Other methods of preventing corrosion or incrustation · CPC title

• C09K15/06

  containing oxygen · CPC title