AU2001257607A1 - Organic cetane improver - Google Patents
Organic cetane improverInfo
- Publication number
- AU2001257607A1 AU2001257607A1 AU2001257607A AU2001257607A AU2001257607A1 AU 2001257607 A1 AU2001257607 A1 AU 2001257607A1 AU 2001257607 A AU2001257607 A AU 2001257607A AU 2001257607 A AU2001257607 A AU 2001257607A AU 2001257607 A1 AU2001257607 A1 AU 2001257607A1
- Authority
- AU
- Australia
- Prior art keywords
- cetane
- fuel
- carotene
- cetane improver
- nitrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Description
ORGANIC CETANE IMPROVER
FIELD OF THE INVENTION The present invention relates generally to a composition and method for increasing the amount of cetane in fuel. More specifically, it was discovered that the amount of cetane in fuel can be increased by mixing a fuel additive comprising β-carotene that was prepared in an inert atmosphere.
BACKGROUND OF THE INVENTION
The interest in improving fuel efficiency has become paramount as our natural resources dwindle and the cost of fuel continues to rise. Fuel efficiency can be improved by adding a fuel additive. Several existing fuel additives are known to increase fuel efficiency, for example, U.S. Patent Nos. 4,274,835, 5,826,369, and 6,193,766 describe fuel additives that improve combustion. Despite the successes of these inventions, there still remains a need for fuel additives that improve combustion.
BRIEF SUMMARY OF THE INVENTION
Embodiments of the invention described herein concern fuel additives that increase the amount of cetane in fuel and methods of use thereof. In one embodiment, for example, a method of improving the amount of cetane in a fuel comprises the step of adding a β-carotene that was dissolved in an inert atmosphere to said fuel. In another embodiment, a cetane improver is made by providing β-carotene that was dissolved in an inert atmosphere, providing an alkyl nitrate, and mixing the β-carotene with the alkyl nitrate. In aspects of this later embodiment, the alkyl nitrate is 2-ethylhexyl nitrate or the inert atmosphere is nitrogen. Additionally, this later method of making a cetane improver can further comprise the step of mixing the β-carotene with toluene prior to mixing the β-carotene with the alkyl nitrate.
Compositions of the invention can include, for example, a cetane improver made by one of the methods described above or a cetane improver comprising a non-oxygenated β-carotene. These cetane improver embodiments can also comprise an alkyl nitrate and/or a toluene. Additionally, in some compositions, the alkyl nitrate is 2-ethylhexyl nitrate. A preferred embodiment of the invention is a No. 2 diesel fuel comprising one of the cetane improvers described above.
DESCRIPTION OF THE INVENTION The invention described herein concerns a composition and method for increasing the amount of cetane in fuel. In one embodiment the cetane improver comprises β-carotene that was prepared under an inert atmosphere. Unexpectedly, it was discovered that β-carotene, which was dissolved in an inert atmosphere, raised the level of cetane in No. 2 diesel fuel more effectively and maintained the raised cetane level longer than β-carotene prepared by conventional methods. In preferred embodiments, a cetane improver is prepared by mixing β-carotene that was dissolved in an inert atmosphere with a toluene carrier, and an alkyl nitrate (e.g., 2-ethylhexyl nitrate). The preferred cetane improver prepared by the methods described herein increased the level of cetane in No. 2 diesel fuel in a synergistic fashion.
In a preferred form, the cetane improver can be formulated by the following method. Under an inert atmosphere, (e.g., nitrogen, helium, or argon) four grams of β-carotene (1.6 million International units of vitamin A activity per gram) are dissolved in 3.785 liters of liquid hydrocarbon carrier toluene with heating and stirring, β- carotene dissolved or otherwise prepared under an inert atmosphere is referred to as "non-oxygenated β-carotene". The mixture of non-oxygenated β-carotene and toluene is referred to as a "B/C-toluene solution". Approximately, 946 milliliters of the B/C-toluene solution is removed. Next, approximately 946 milliliters of a 100% solution of 2- ethylhexyl nitrate ( also referred to as "2-EHN") is added to the 2.839 liters of B/C-toluene solution so as to obtain a total volume of 3.785 liters. That is, approximately 25% of the starting volume of B/C-toluene is removed and replaced by an equal volume of 2-ethylhexyl nitrate. It should be understood that pure 2-EHN is desired but that variations in alkyl nitrates and in grade are also suitable. Further, one of skill will appreciate that other alkyl nitrates are equivalent to 2-EHN and can be substituted accordingly. Desirably, many different formulations of cetane improver are made, each having a different alkyl nitrate or more than one alkyl nitrate and/or proportions thereof relative to the β-carotene, which was dissolved under an inert atmosphere, and these formulations are evaluated for the ability to raise cetane levels in No. 2 diesel fuel according to the methods described below. In the embodiment described above, it is desirable to add the ingredients in the order described above. However, in other embodiments, variations in the order of addition can be made.
The B/C-toluene-2-EHN solution is one embodiment of a "concentrated cetane improver," also referred to as "OR-CT." To improve the cetane level in No. 2 diesel fuel, approximately 0.1ml - 35ml of the concentrated cetane improver is added per one gallon of No. 2 diesel fuel. Preferably, the amount of concentrated cetane improver added to a gallon of No. 2 diesel fuel is, in the range from about 0.3 ml to about 30ml, more desirably, from about 0.5ml to about 25ml, still more preferably, from about 0.75ml to about 20ml, even more preferably, from about 1ml to about 15ml, and most preferably, from about 2ml to about 12ml. The Examples described below provide the results of tests performed according to the well accepted ASTM D-613 procedure on baseline fuels of various quality as measured by initial cetane levels. This data verifies that the cetane improver described herein synergistically improves the level of cetane in No. 2 diesel fuel.
EXAMPLE 1
FORMULATION CETANE LEVEL
Baseline fuel No. 2 Diesel 40.5
No. 2 diesel with 10571 ppm 2-EHN6 only 44.98
No. 2 diesel with 10571 ppm OR-CT3 only 43.04
No. 2 diesel with 528.52 ppm 2-EHN6 + 528.52 ppm OR-CT3 mixed 45.39(+0.41)
EXAMPLE 2
FORMULATION CETANE LEVEL
Baseline fuel No. 2 Diesel 46.8
No. 2 diesel fuel with 10571 ppm 2-EHN6 only 52.75
No. 2 diesel fuel with 10571 ppm OR-CT3 only 50.81
No. 2 diesel fuel with 528.52 ppm 2-EHN6 + 528.52 ppm OR-CT3 mixed 54.02(1.27)
EXAMPLE 3
FORMULATION CETANE LEVEL
Baseline fuel No. 2 diesel 48.79
No. 2 diesel fuel with 10571 ppm 2-EHN6 only 53.18
No. 2 diesel fuel with 10571 ppm OR-CT3 only 51.13
No. 2 diesel fuel with 528.52 ppm 2-EHN6 + 528.52 ppm OR-CT3 mixed 54.52{+ 1.34)
EXAMPLE 4
FORMULATION CETANE LEVEL
Baseline fuel No. 2 diesel 40.5
No. 2 diesel fuel with 3004 ppm 2-EHN6 only 43.02
No. 2 diesel fuel with 3004 ppm OR-CT3 only 41.48
No. 2 diesel fuel with 1505 ppm 2-EHN6 + 1503 ppm OR-CT3 mixed 43.34(+0.32)
1 = 4 milliliters per gallon
2 = 2 milliliters per gallon 3 = 1 X 106 IU β-carotene
4 = 1.14 milliliters per gallon
5 = 0.57 milliliters per gallon
6 = 2-ethylhexyl nitrate
Although the invention has been described with reference to embodiments and examples, it should be understood that various modifications can be made without departing from the spirit of the invention. Accordingly, the invention is limited only by the following claims. All references cited herein are hereby expressly incorporated by reference in their entireties.
Claims (11)
1. A method of improving the amount of cetane in a fuel comprising the step of adding a β-carotene that was dissolved in an inert atmosphere to said fuel.
2. A method of making a cetane improver comprising: providing β-carotene that was dissolved in an inert atmosphere; providing an alkyl nitrate; and mixing the β-caroteπe with the alkyl nitrate.
3. The method of Claim 2, wherein the alkyl nitrate is 2-ethylhexyl nitrate.
4. The method of Claim 2, wherein the inert atmosphere is nitrogen.
5. The method of Claim 2, further comprising the step of mixing the β-carotene with toluene prior to mixing the β-carotene with the alkyl nitrate.
6. A cetane improver made by the method of Claim 2.
7. A cetane improver comprising a non-oxygenated β-carotene.
8. The cetane improver of Claim 7, further comprising an alkyl nitrate.
9. The cetane improver of Claim 7 or 8, further comprising a toluene.
10. The cetane improver of Claim 8 or 9, wherein the alkyl nitrate is 2-ethylhexyl nitrate.
1 1. A No. 2 diesel fuel comprising the cetane improver of Claim 7.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19778800P | 2000-04-14 | 2000-04-14 | |
US60/197,788 | 2000-04-14 | ||
PCT/US2001/040509 WO2001079398A1 (en) | 2000-04-14 | 2001-04-12 | Organic cetane improver |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2001257607A1 true AU2001257607A1 (en) | 2002-01-17 |
AU2001257607B2 AU2001257607B2 (en) | 2006-01-19 |
Family
ID=22730765
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001257607A Ceased AU2001257607B2 (en) | 2000-04-14 | 2001-04-12 | Organic cetane improver |
AU5760701A Pending AU5760701A (en) | 2000-04-14 | 2001-04-12 | Organic cetane improver |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU5760701A Pending AU5760701A (en) | 2000-04-14 | 2001-04-12 | Organic cetane improver |
Country Status (10)
Country | Link |
---|---|
US (1) | US6638324B2 (en) |
EP (1) | EP1290113A4 (en) |
JP (1) | JP2003531245A (en) |
CN (1) | CN1215151C (en) |
AU (2) | AU2001257607B2 (en) |
BR (1) | BR0110033A (en) |
CA (1) | CA2406489A1 (en) |
MX (1) | MXPA02009999A (en) |
WO (1) | WO2001079398A1 (en) |
ZA (1) | ZA200209245B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060201056A1 (en) * | 2000-04-14 | 2006-09-14 | Oryxe Energy International, Inc. | Biodiesel fuel additive |
CN1514871A (en) | 2001-03-22 | 2004-07-21 | 奥瑞克斯能源国际公司 | Use of plant-derived, oil-extracted material for reduced emissions |
US20050160662A1 (en) * | 2002-06-11 | 2005-07-28 | Oryxe Energy International, Inc. | Method and composition for using stabilized beta-carotene as cetane improver in hydrocarbonaceous diesel fuels |
TW200406486A (en) * | 2002-06-11 | 2004-05-01 | Oryxe energy int inc | Method and composition for using stabilized beta-carotene as cetane improver in hydrocarbonaceous diesel fuels |
JP2007521366A (en) * | 2003-06-26 | 2007-08-02 | オリックス エナージー インターナショナル, インコーポレイティッド | Novel hydrocarbon fuel additives and fuel formulations with improved combustion characteristics |
US20060096165A1 (en) * | 2004-06-25 | 2006-05-11 | Oryxe Energy International, Inc. | Novel hydrocarbon fuel additives and fuel formulations exhibiting improved combustion properties |
US7691158B2 (en) * | 2004-06-25 | 2010-04-06 | Oryxe Energy International, Inc. | Hydrocarbon fuel additives and fuel formulations exhibiting improved combustion properties |
US20070175088A1 (en) * | 2006-01-30 | 2007-08-02 | William Robert Selkirk | Biodiesel fuel processing |
US7964002B2 (en) * | 2006-06-14 | 2011-06-21 | Chemtura Corporation | Antioxidant additive for biodiesel fuels |
US9162969B2 (en) | 2009-09-15 | 2015-10-20 | Dsm Ip Assets B.V. | Nitrooxyesters, their preparation and use |
AU2011344323A1 (en) * | 2010-12-14 | 2013-06-20 | Basf Se | Use of mixtures of monocarboxylic acids and polycyclic hydrocarbon compounds for increasing the cetane number of fuel oils |
WO2013075296A1 (en) * | 2011-11-23 | 2013-05-30 | Xiong Liang | Hydrocarbon fuel antioxidant and use method therefor |
CN108342234A (en) * | 2018-04-09 | 2018-07-31 | 国通达新能源股份有限公司 | Alcohol liquid fuel |
CN108531226A (en) * | 2018-04-09 | 2018-09-14 | 国通达新能源股份有限公司 | A kind of alcohol liquid fuel |
CN108546573A (en) * | 2018-05-07 | 2018-09-18 | 国通达新能源股份有限公司 | A kind of automobile-used alcohol liquid fuel |
CN108728180A (en) * | 2018-05-28 | 2018-11-02 | 国通达新能源股份有限公司 | A kind of automobile-used alcohol liquid fuel formulation |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2582192A (en) * | 1948-07-13 | 1952-01-08 | California Research Corp | Diesel fuel oil |
US2818417A (en) | 1955-07-11 | 1957-12-31 | Ethyl Corp | Cyclomatic compounds |
NL262417A (en) | 1960-03-15 | |||
US3574576A (en) | 1965-08-23 | 1971-04-13 | Chevron Res | Distillate fuel compositions having a hydrocarbon substituted alkylene polyamine |
US3524909A (en) | 1966-12-27 | 1970-08-18 | Nat Distillers Chem Corp | Preparation of hydrocarbon thioalkylene phosphites |
CH502842A (en) | 1967-08-12 | 1971-02-15 | Advance Prod Gmbh | Use of the reaction products of phenol derivatives with phosphorus compounds as stabilizers for polymers |
US3941745A (en) | 1972-10-24 | 1976-03-02 | Ciba-Geigy Corporation | Sulfur containing derivatives of dialkyl-4-hydroxyphenyltriazine |
US4231759A (en) | 1973-03-12 | 1980-11-04 | Standard Oil Company (Indiana) | Liquid hydrocarbon fuels containing high molecular weight Mannich bases |
US4007157A (en) | 1973-07-11 | 1977-02-08 | Ciba-Geigy Corporation | Substituted piperazines and polymeric compositions stabilized thereby |
US3920661A (en) | 1973-12-28 | 1975-11-18 | Ciba Geigy Corp | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions |
US4051102A (en) | 1973-12-28 | 1977-09-27 | Ciba-Geigy Corporation | Bicyclic hindered amino acids, metal salts thereof and stabilized compositions |
US3991012A (en) | 1973-12-28 | 1976-11-09 | Ciba-Geigy Corporation | Compositions stabilized with bicyclic hindered amines |
US4000113A (en) | 1974-01-14 | 1976-12-28 | Ciba-Geigy Corporation | Acylated derivatives of 2,6-dihydroxy-9-azabicyclo[3.3.1]nonane and stabilized compositions |
SE7502286L (en) | 1974-03-11 | 1975-09-12 | Ciba Geigy Ag | |
US4081475A (en) | 1974-12-10 | 1978-03-28 | Ciba-Geigy Corporation | Trialkylsubstituted hydroxybenzyl malonates and stabilized compositions |
US4093586A (en) | 1975-01-15 | 1978-06-06 | Ciba-Geigy Corporation | Pyrrolidine dicarboxylic acids and esters and stabilized compositions |
US4191829A (en) | 1975-06-30 | 1980-03-04 | Ciba-Geigy Corporation | Hindered piperidine carboxylic acids and metal salts thereof |
US4191682A (en) | 1976-06-28 | 1980-03-04 | Ciba-Geigy Corporation | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions |
US4207229A (en) | 1976-07-30 | 1980-06-10 | Ciba-Geigy Corporation | Hindered phenyl phosphites |
US4208190A (en) * | 1979-02-09 | 1980-06-17 | Ethyl Corporation | Diesel fuels having anti-wear properties |
US4274835A (en) * | 1979-11-05 | 1981-06-23 | Oryx, Inc. | Method and composition for modifying burning of sulfur in coals and hydrocarbon fuels |
US4270930A (en) | 1979-12-21 | 1981-06-02 | Chevron Research Company | Clean combustion chamber fuel composition |
EP0052777A1 (en) * | 1980-11-20 | 1982-06-02 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | Process for the extraction of beta-carotene from algae |
US4670021A (en) | 1983-01-10 | 1987-06-02 | Texaco Inc. | Detergent and corrosion inhibiting additive and motor fuel composition containing same |
US4504499A (en) | 1983-04-25 | 1985-03-12 | Basf Wyandotte Corporation | Heat-stabilized, carotenoid-colored edible oils |
US4734519A (en) | 1986-06-05 | 1988-03-29 | Mallinckrodt, Inc. | Pentaerythritol co-esters |
US5024775A (en) | 1989-11-06 | 1991-06-18 | Ethyl Corporation | Alkyl phenol stabilizer compositions for fuels and lubricants |
US5076814A (en) | 1989-11-06 | 1991-12-31 | Ethyl Corporation | Stabilizer compositions |
CA2040818A1 (en) * | 1990-05-17 | 1991-11-18 | Lawrence J. Cunningham | Fuel compositions with enhanced combustion characteristics |
US5826369A (en) * | 1993-12-07 | 1998-10-27 | Barto/Jordan Company, Inc. | Chlorophyll based fuel additive for reducing pollutant emissions |
US6193766B1 (en) * | 1996-06-27 | 2001-02-27 | Barto/Jordan Company, Inc. | Alfalfa extract fuel additive for reducing pollutant emissions |
-
2001
- 2001-04-12 JP JP2001577382A patent/JP2003531245A/en not_active Withdrawn
- 2001-04-12 BR BR0110033-5A patent/BR0110033A/en not_active Application Discontinuation
- 2001-04-12 CN CNB018080227A patent/CN1215151C/en not_active Expired - Fee Related
- 2001-04-12 MX MXPA02009999A patent/MXPA02009999A/en active IP Right Grant
- 2001-04-12 AU AU2001257607A patent/AU2001257607B2/en not_active Ceased
- 2001-04-12 CA CA002406489A patent/CA2406489A1/en not_active Abandoned
- 2001-04-12 AU AU5760701A patent/AU5760701A/en active Pending
- 2001-04-12 WO PCT/US2001/040509 patent/WO2001079398A1/en active IP Right Grant
- 2001-04-12 EP EP01931143A patent/EP1290113A4/en not_active Withdrawn
-
2002
- 2002-02-26 US US10/084,838 patent/US6638324B2/en not_active Expired - Lifetime
- 2002-11-13 ZA ZA200209245A patent/ZA200209245B/en unknown
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