Formulation for enhancing lubricity of fuels

Patent metadata

Field	Value
Publication number	US-11060043-B2
Application number	US-201816618742-A
Country	US
Kind code	B2
Filing date	May 4, 2018
Priority date	Jun 2, 2017
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

The present disclosure relates to a formulation of diesel additive comprising 2-ethylhexanoic acid, at least one alkylene glycol and at least one alkanolamine which at specific weight ratios, is able to enhance the lubricity of a fuel. Also provided are the methods of preparation and usage of the same. It further relates to the fuel composition comprising the fuel, and the formulation of present disclosure, and the method of preparing the fuel composition.

First claim

We claim:

1. A method for enhancing lubricity of a fuel, the method comprising, contacting the lubricity additive formulation comprising:
(a) 2-ethylhexanoic acid;
(b) at least one alkylene glycol; and
(c) at least one alkanolamine with a fuel to obtain a fuel composition with enhanced lubricity.

2. The method as claimed in claim 1 , wherein the lubricity additive formulation has concentration in the range of 20-120 ppm in the fuel composition.

3. The method as claimed in claim 1 , wherein the fuel is a diesel having sulphur content in the range of 5-50 ppm.

4. A fuel composition comprising: (a) fuel; and (b) lubricity additive formulation comprising:
(a) 2-ethylhexanoic acid;
(b) at least one alkylene glycol; and
(c) at least one alkanolamine.

5. The fuel composition as claimed in claim 4 , wherein the fuel is a diesel having sulphur content in the range of 5-50 ppm.

6. A method for preparation of a fuel composition as claimed in claim 4 , the method comprising steps of:
(a) obtaining lubricity additive formulation comprising: (i) 2-ethylhexanoic acid; (ii) at least one alkylene glycol; and (iii) at least one alkanolamine;
(b) obtaining a fuel; and
(c) contacting the lubricity additive formulation and the fuel to obtain the fuel composition.

7. The method as claimed in claim 6 , wherein the fuel is a diesel having sulphur content in the range of 5-50 ppm.

8. The method of claim 6 wherein the step of: (a) obtaining the lubricity additive formulation comprising: (i) 2-ethylhexanoic acid: (ii) at least one alkylene glycol; and (iii) at least one alkanolamine;
comprises the steps of:—(a) contacting 2-ethylhexanoic acid, and the at least one alkanolamine to obtain mixture-1 is carried out a temperature in the range of 25-35° C. for a period in the range of 5-15 minutes at a stirring speed in the range of 200-500 rpm; —and—
(b) contacting the mixture-1 and the at least one alkylene glycol to obtain lubricity additive formulation is carried out a temperature in the range of 25-35° C. for a period in the range of 50-80 minutes at a stirring speed in the range of 200-500 rpm.

Assignees

• Hindustan Petroleum Corp Ltd

Inventors

• Bhowmik Sandip
• Siva Kesava Raju Chintalapati
• Kanala Raghava Krishna
• Srinivasa Rao Ganagalla
• Mangala Ramkumar
• Chalapathi Rao Peddy Venkata
• Venkateswarlu Choudary Nettam
• Sriganesh Gandham

Classifications

• C10L2200/0259

  Nitrogen containing compounds · CPC title

• C10L2200/0446

  Diesel · CPC title

• C10L1/1826

  poly-hydroxy · CPC title

• C10L2290/24

  Mixing, stirring of fuel components · CPC title

• C10L2270/026

  for diesel engines, e.g. automobiles, stationary, marine · CPC title