Nano perovskite materials as combustion improver for liquid and gaseous fuels

Patent metadata

Field	Value
Publication number	US-10995292-B2
Application number	US-201916351314-A
Country	US
Kind code	B2
Filing date	Mar 12, 2019
Priority date	Mar 12, 2018
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

The present invention relates to use of Perovskite type of materials as combustion improver in gaseous and liquid fuels. Structurally, the Perovskite material consists of ABO 3 , A x B 1-x C y O 3 or A x B 1-x C y O 3 kind of material with stoichiometric deficiency and oxygen deficient sites. More particularly, the present invention relates to the nanosized perovskite materials stably dispersed in hydrocarbon medium and compatible to the fuel has been used to improve the combustion process and generate more heat output.

First claim

What is claimed is:

1. A liquid dispersion composition comprising:
nanosized-perovskite materials having a size in the range of 5-20 nm and a hydrocarbon medium,
wherein the hydrocarbon medium is a fuel or a hydrocarbon compatible with a fuel, and wherein the fuel is selected from the group consisting of propane, butane, liquefied petroleum gas (LPG), diesel, gasoline, gasoline-alcohol blend, diesel-alcohol blend, diesel-biodiesel blend, kerosene, mineral turpentine oil (MTO), fuel oil, and combinations thereof,
wherein the nanosized-perovskite materials are represented by at least one of a general formula (I), (II), or (III):
ABO 3 ,  (I),

A x B 1-x C y O 3 or  (II),

A x B 1-x C y D 1-y O 3   (III),

wherein A represents La, Y, Sm, or Ce;
B represents Ca, Ba, or Sr;
C represents Mn, Co, Fe, Cu, or Ni;
D represents Cr, Ru, or Fe;
x is in the range of 0.15 to 0.50; and
y is in the range of 0.15 to 0.95,

wherein the composition improves a combustion process.

2. The composition as claimed in claim 1 , wherein the composition comprises nanoparticles in a concentration range of 1-200 ppm.

3. An additized fuel composition comprising:
a fuel doped with a liquid dispersion of nanosized-perovskite materials wherein the nanosized-perovskite materials are dispersed in a hydrocarbon medium,
wherein the hydrocarbon medium is a fuel or a hydrocarbon compatible with a fuel, and wherein the fuel is selected from the group consisting of propane, butane, liquefied petroleum gas (LPG), diesel, gasoline, gasoline-alcohol blend, diesel-alcohol blend, diesel-biodiesel blend, kerosene, mineral turpentine oil (MTO), fuel oil, and combinations thereof,
wherein the nanosized-perovskite materials have a size in a range of 5-20 nm, and
wherein the nanosized-perovskite materials are represented by at least one of a general formula (I), (II), or (III):
ABO 3 ,  (I),

A x B 1-x C y O 3 or  (II),

A x B 1-x C y D 1-y O 3   (III),

wherein A represents La, Y, Sm, or Ce;
B represents Ca, Ba, or Sr;
C represents Mn, Co, Fe, Cu, or Ni;
D represents Cr, Ru, or Fe;
x is in the range of 0.15 to 0.50; and
y is in the range of 0.15 to 0.95;

wherein the additized fuel composition increases flame temperature of a fuel to which it is added from about 1900° C. to about 2600° C.

4. The composition as claimed in claim 3 , wherein the composition comprises nanoparticles in a concentration range of 1-200 ppm.

5. A process for preparation of a liquid dispersion composition, wherein the process comprises:
grinding perovskite material in a non-reacting hydrocarbon medium to provide a nanosized-perovskite material having a size in a range of 5-20 nm in the non-reacting hydrocarbon medium as the liquid dispersion;
wherein the non-reacting hydrocarbon medium is a fuel or a hydrocarbon compatible with the fuel, and wherein the fuel is selected from the group consisting of propane, butane, liquefied petroleum gas (LPG), diesel, gasoline, gasoline-alcohol blend, diesel-alcohol blend, diesel-biodiesel blend, kerosene, mineral turpentine oil (MTO), fuel oil, and combinations thereof.

6. The process as claimed in claim 5 , wherein the nanosized-perovskite materials are represented by at least one of a general formula (I), (II), or (III):
ABO3,  (I),

A x B1- x C y O3 or  (II),

A x B1- x C y D1- y O 3   (III),

wherein A represents La, Y, Sm, or Ce;
B represents Ca, Ba, or Sr;
C represents Mn, Co, Fe, Cu, or Ni;
D represents Cr, Ru, or Fe;
x is in the range of 0.15 to 0.50; and
y is in the range of 0.15 to 0.95.

7. A process for preparation of an additized fuel composition, wherein the process comprises:
(a) dispersing a nanosized-perovskite material, having a size in a range of 5-20 nm, in a non-reacting hydrocarbon medium in a matrix and obtaining a liquid dispersion of the nanosized-perovskite material; wherein the non-reacting hydrocarbon medium is a fuel or a hydrocarbon compatible with a fuel, and wherein the fuel is selected from the group consisting of propane, butane, liquefied petroleum gas (LPG), diesel, gasoline, gasoline-alcohol blend, diesel-alcohol blend, diesel-biodiesel blend, kerosene, mineral turpentine oil (MTO), fuel oil, and combinations thereof; and
(b) doping the liquid dispersion of the nanosized-perovskite material into a fuel to obtain the additized fuel composition,

wherein the additized fuel composition is a liquid fuel or a gaseous fuel and wherein the additized fuel composition enhances flame temperature of a fuel to which it is added from about 1900° C. to about 2600° C. for high temperature applications.

8. The process as claimed in claim 7 , wherein the nanosized-perovskite materials are represented by at least one of a general formula (I), (II), or (III):
ABO 3 ,  (I),

A x B 1-x C y O 3 or  (II),

A x B 1-x C y D 1-y O 3   (III),

wherein A represents La, Y, Sm, or Ce;
B represents Ca, Ba, or Sr;
C represents Mn, Co, Fe, Cu, or Ni;
D represents Cr, Ru, or Fe;
x is in the range of 0.15 to 0.50; and
y is in the range of 0.15 to 0.95.

Assignees

• Indian Oil Corp Ltd

Inventors

• OTA Jyotiranjan
• Hait Samik Kumar
• Sastry Madhira Indu Sekhara
• Kapur Gurpreet Singh
• RAMAKUMAR Sankara Sri Venkata

Classifications

• C10L2200/0476

  Biodiesel, i.e. defined lower alkyl esters of fatty acids first generation biodiesel · CPC title

• C10L10/10

  for improving the octane number · CPC title

• C10L2200/043

  Kerosene, jet fuel · CPC title

• C10L2200/0236

  Group VII metals: Mn, To, Re · CPC title

• C10L2200/0423

  Gasoline · CPC title