AU2008347306A1 - Environmentally friendly ternary transportation flex-fuel of gasoline, methanol and bioethanol - Google Patents
Environmentally friendly ternary transportation flex-fuel of gasoline, methanol and bioethanol Download PDFInfo
- Publication number
- AU2008347306A1 AU2008347306A1 AU2008347306A AU2008347306A AU2008347306A1 AU 2008347306 A1 AU2008347306 A1 AU 2008347306A1 AU 2008347306 A AU2008347306 A AU 2008347306A AU 2008347306 A AU2008347306 A AU 2008347306A AU 2008347306 A1 AU2008347306 A1 AU 2008347306A1
- Authority
- AU
- Australia
- Prior art keywords
- methanol
- bioethanol
- gasoline
- mixture
- flex
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/12—Inorganic compounds
- C10L1/1233—Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
- C10L1/125—Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
- C10L1/023—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for spark ignition
Description
WO 2009/088861 PCT/US2008/088539 ENVIRONMENTALLY FRIENDLY TERNARY TRANSPORTATION FLEX-FUEL OF GASOLINE, METHANOL AND BIOETHANOL BACKGROUND 5 Petroleum based gasoline for cleaner and more efficient burning generally necessitates either high octane alkylate or oxygenate as well as other octane number enhancing additives. Many of these additives such as tetraethyl lead and other organometallic additives were, however, phased out because of their recognized environmental and health hazards. So were some petrochemical based oxygenates, such as MTBE, methyl-tert-butyl ether. Gasoline and 10 any hydrocarbon fuel upon its combustion transform its carbon content into carbon dioxide (a recognized major greenhouse gas contributing to man caused global warming). There is consequently an increased interest in the use of biofuels, mainly bioethanol. Because the use of carbon based transportation fuels is one of the major-sources of man caused global warming, the use of biofuels, specifically of bioethanol, is gaining 15 significant use as any plant life or crop is a natural way to recycle carbon dioxide. Bioethanol produced by fermenting varied plant life and crops (corn, sugar cane, etc.) derives its carbon content by recycling atmospheric carbon dioxide via photosynthesis (using water and sun's energy) and thus is a renewable carbon fuel. The production of bioethanol, however, itself necessitates substantial energy (use of nitrogenous fertilizers, irrigation, operating varied 20 machineries (tractors, trucks, etc.) to the energy need of the fermentation plants of crops, various plants, even cellulosic materials, etc.). Further, ethanol is miscible with gasoline only when it is dry, thus preventing its transportation via pipelines, even trucking of higher blends with gasoline, etc. It is therefore necessary to dry (dehydrate) ethanol from any water and handle it accordingly. The biofermentation process further also produces large amounts of 25 carbon dioxide. The use of binary transportation fuel mixtures of gasoline and methanol (such as M20 and M85) as well as gasoline and ethanol (such as E85) is well known and used at different locations (US, California, Brazil) at times. A ternary fuel mix called MEG (33% CH 3 0H, 60% ethanol and 7% gasoline) was also used in Brazil (San Paulo area) in the late eighties and 30 early nineties. MEG was introduced to overcome temporary shortages of ethanol at the time in Brazil and served to provide of usable alcohol fuel. Presently, bioethanol based binary gasoline flex-fuel such as E85 and E20 (containing 85 or 20% ethanol, respectively) is attracting much current interest as a means to decrease dependence on depleting oil reserves and importation of oil from countries still possessing 1 WO 2009/088861 PCT/US2008/088539 substantial oil resources. In the US, bioethanol is primarily produced from corn, whereas in Brazil and other tropical areas sugar cane is the source. Bioethanol used in binary fuel mixes with gasoline must be dry (anhydrous) to avoid phase separation. This not only necessitates more expensive production involving an additional dehydration step (distillation only gives a 5 96% ethanol, 4% water azeotrope mixture) but poses significant difficulties in transportation (making pipelining and other usual bulk transportation inconvenient). Even pre-mixing with gasoline in refineries is not feasible. Thus, more efficient and economic improvements are needed, and these are now provided by the present invention. US Patent Application 2006/0235091 discloses the use of methanol as a way of 10 chemically recycling carbon dioxide from industrial or natural sources producing useful new fuels and materials while decreasing man caused atmospheric excess carbon dioxide and thus mitigating global warming. This application teaches that methanol can be used as a fuel by itself or in combination with gasoline. An additional advantage of the chemical recycling of carbon dioxide is that it uses undesirable carbon dioxide, which would otherwise be emitted 15 into the atmosphere contributing to global warming. SUMMARY OF THE INVENTION The present invention discloses an efficient and economic way to overcome the previous difficulties encountered with bioethanol and to use the desirable compound methanol 20 in a flex-fuel mixture with gasoline. This mixture comprises at least 10% gasoline, at least 10% bioethanol and at least 450% methanol, with the amount of gasoline, bioethanol and methanol totaling 100%. The flex-fuel mixture has an octane rating of at least 90 and remains homogeneous in the presence of up to 10% water therein. In this flex-fuel mixture, both the gasoline and the bioethanol are each present in an 25 amount of less than 33% of the mixture and the methanol is present in an amount of at least 50% of the mixture. Preferably, the methanol is present in an amount of less than 75% of the mixture. More preferably, the flex-fuel mixture comprises 10-15 to 30% gasoline, 50 to 75-80% methanol, and 10 to 25% of bioethanol and having an octane rating of 90 to 98. The invention also relates to a method of making these flex-fuel mixtures by mixing 30 the gasoline, bioethanol and methanol together in the amounts recited and under mixing conditions sufficient to form homogenous mixtures. The mixing may be conducted by first mixing the gasoline with the methanol to form a binary mixture and subsequently adding the bioethanol, or by first mixing the methanol with bioethanol to form a binary mixture and 2 WO 2009/088861 PCT/US2008/088539 subsequently adding the gasoline. Advantageously, the bioethanol is mixed with the gasoline and methanol without first having to be treated to remove associated water or without having to be rendered anhydrous. Also, the methanol can be made from carbon dioxide that is generated by an industrial plant to avoid emitting carbon dioxide into the atmosphere or from 5 carbon dioxide that is removed from the atmosphere to reduce the contribution of the carbon dioxide to global warming. The invention also relates to a method of storing, handling, transporting or dispensing a bioethanol containing fuel using existing infrastructure without the need to render and keep the fuel anhydrous which comprises formulating the fuel with at least 10% gasoline, at least 10 10% bioethanol and at least 45% methanol, with the amount of gasoline, bioethanol and methanol totaling 100%, wherein the flex-fuel mixture has an octane rating of at least 90 and remains homogeneous in the presence of up to 10% water therein. Another embodiment of the invention relates to an improvement in a method for preparing a flex-fuel mixture of gasoline and bioethanol, wherein the improvement comprises 15 adding methanol in an amount sufficient to enable the mixture to remain homogeneous in the presence of up to 10% water to thus allow handling, transportation, dispensing and use of the mixture in the same manner as conventional gasoline fuels without first having to treat the bioethanol to remove associated water or without having to be rendered anhydrous. Preferred flex-fuel mixtures of this method are those disclosed herein. 20 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In this document, the term "bioethanol" is used to mean ethanol produced by fermenting various plant life, crops, or other cellulosic materials or natural products and is a renewable and environmentally friendly resource. 25 The present invention discloses a feasible and more efficient new way to use bioethanol containing up to 10% water without expensive and costly dehydration or any special treatment to avoid moisture in transportation dispensing or use as a flex-fuel. It is based on producing and using ternary gasoline-methanol-bioethanol fuel mixture which are not phase separated in the indicated range. A typical gasoline-methanol binary fuel mix 30 contains up to 85% methanol. This binary flex-fuel is completely miscible with bioethanol when the latter is added in amounts of 25% or less. Mixing with gasoline-methanol, there is no need for the bioethanol to be dry and can contain water (moisture) up to 10% making it practical for storage, transportation and use without any special treatment or facilities. 3 WO 2009/088861 PCT/US2008/088539 The disclosed ternary transportation fuel mixtures are easily accessible with the methanol produced by any known method, including the chemical hydrogenative recycling of carbon dioxide of industrial exhausts or natural sources as disclosed in US Patent Application 2006/0235091. The mixtures have the ability of being produced by recycling carbon dioxide 5 through biological (i.e., photosynthetic and subsequent fermentative) ways as well as reductive chemical recycling of carbon dioxide allowing the carbon fuel mix to be used in an environmentally friendly way while also mitigating global warming. The needed bioethanol can be produced from any suitable crops (sugar cane, corn, etc.), from cellulosic materials and other natural products. Their degradation/fermentation 10 produce bioethanol. Nature's photosynthetic recycling of carbon dioxide to plant life together with the chemical recycling of carbon dioxide to methanol makes the disclosed gasoline methanol-bioethanol ternary flex-fuel mix substantially carbon neutral. A further advantage is the cleaner burning properties and high octane rating of the disclosed tertiary fuel mixes. Methanol has an octane number of ~100 and bioethanol of 105. 15 Thus, an octane rating of between 90 and 98 can be achieved by the formulation of the preferred amounts of the three components of the flex-fuel mixtures of the present invention. The high octane rating of these mixtures and their advantageous combustion properties are due to the beneficial effect of the oxygenates (i.e., the alcohols) that the mixtures contain and can be selected by skilled artisans as desired by the judicious selection of the amounts of the 20 alcohols that are included in the mixtures. The optimum amounts can be determined by routine testing of the mixtures by starting with the preferred amounts disclosed herein. The new ternary flex-fuels of the invention can be transported pre-mixed, stored and used without any specific precaution to exclude moisture or water condensation. These properties make the ternary fuel mix highly practical and economical. It eliminates the 25 significant drawbacks of the use of bioethanol presently encountered in binary gasoline ethanol mixtures. It allows the practical use of the ternary flex-fuel under usual conditions for storing, transporting, and dispensing transportation fuels through existing infrastructure used for gasoline. At the same time, the ternary fuel mix offers the advantages of high octane rating, good ignition and burning properties and complete miscibility without phase 30 separation. The disclosed economical, convenient and highly efficient ternary fuel mix can be easy introduced and utilized with minimal additional cost of production, transportation and dispensing facilities and is adaptable with extremely limited minor changes of internal 4 WO 2009/088861 PCT/US2008/088539 combustion engine (ICE) vehicles. Thus, the flex-fuel mixtures of the invention can be handled, transported, dispensed and used in the same manner as conventional gasoline fuels. The ternary flex-fuel mixtures described and claimed in present applications are conveniently prepared by mixing first methanol with gasoline in the indicated range of 5 proportions and then admixing the appropriate amount of bioethanol without any dehydration of the azeotropic mixture, e.g., 96% ethanol-4% water obtained by distillation of any fermentation produced bioethanol. Alternatively, methanol and bioethanol can be premixed and thus gasoline added. There is no need to store, transport, dispense and use the ternary gasoline-methanol-bioethanol mixtures indicated within the range composition according to 10 the claims under special conditions for excluding moisture to avoid water condensation. No phase separation of the flex-fuel mixture occurs and it burns efficiently in ICE vehicles with the aforementioned advantageous properties. 5
Claims (16)
1. An efficient and environmentally friendly ternary transportation flex-fuel mixture comprising at least 10% gasoline, at least 10% bioethanol and at least 45% methanol, 5 with the amount of gasoline, bioethanol and methanol totaling 100%, wherein the flex-fuel mixture has an octane rating of at least 90 and remains homogeneous in the presence of up to 10% water therein.
2. The flex-fuel mixture of claim 1 wherein the gasoline is present in an amount 10 of less than 33% of the mixture and the methanol is present in an amount of at least 50% of the mixture.
3. The flex-fuel mixture of claim 1 wherein the bioethanol is present in an amount of less than 33% of the mixture and the methanol is present in an amount of at least 50% of 15 the mixture.
4. The flex-fuel mixture of claim 1 wherein the methanol is present in an amount of less than 75% of the mixture. 20 5. The flex-fuel mixture of claim 1 comprising 10 to 30% gasoline, 50 to 80% methanol, and 10 to 25% of bioethanol and having an octane rating of 90 to 98.
6. The flex-fuel mixture of claim 1 comprising 15 to 30% gasoline, 50 to 75% methanol, and 10 to 25% of bioethanol and having an octane rating of 90 to 98. 25
7. A method of making the flex-fuel mixture of claim 1 which comprises mixing the gasoline, bioethanol and methanol together in the amounts recited and under mixing conditions sufficient to form a homogenous mixture. 30 8. The method of claim 7 wherein the mixing is conducted by first mixing the gasoline with the methanol to form a binary mixture and subsequently adding the bioethanol. 6 WO 2009/088861 PCT/US2008/088539
9. The method of claim 7 wherein the mixing is conducted by first mixing the methanol with bioethanol to form a binary mixture and subsequently adding the gasoline.
10. The method of claim 7, wherein the methanol is made from carbon dioxide that 5 is generated by an industrial plant to avoid emitting carbon dioxide into the atmosphere where it can contribute to further global warming.
11. The method of claim 7, wherein the methanol is made from carbon dioxide that is removed from the atmosphere to reduce the contribution of the carbon dioxide to global 10 warming.
12. A method of storing, handling, transporting or dispensing a bioethanol containing fuel using existing infrastructure without the need to render and keep the fuel anhydrous which comprises formulating the fuel with at least 10% gasoline, at least 10% 15 bioethanol and at least 45% methanol, with the amount of gasoline, bioethanol and methanol totaling 100%, wherein the flex-fuel mixture has an octane rating of at least 90 and remains homogeneous in the presence of up to 10% water therein.
13. In a method for preparing a flex-fuel mixture of gasoline and bioethanol, the 20 improvement which comprises adding methanol in an amount sufficient to enable the mixture to remain homogeneous in the presence of up to 10% water to thus allow handling, transportation, dispensing and use of the mixture in the same manner as conventional gasoline fuels without first having to treat the bioethanol to remove associated water or without having to be rendered anhydrous. 25
14. The method of claim 13 wherein the flex-fuel mixture comprises at least 10% gasoline, at least 10% bioethanol and at least 45% methanol, with the amount of gasoline, bioethanol and methanol totaling 100%. 30 15. The method of claim 13 wherein the flex-fuel mixture has an octane rating of at least 90. 7 WO 2009/088861 PCT/US2008/088539
16. The method of claim 13 wherein the gasoline is present in an amount of less than 33% of the mixture and the methanol is present in an amount of at least 50% of the mixture. 5 17. The method of claim 13 wherein the bioethanol is present in an amount of less than 33% of the mixture and the methanol is present in an amount of at least 50% of the mixture.
18. The method of claim 13 wherein the methanol is present in an amount of less 10 than 75% of the mixture.
19. The method of claim 13 wherein the flex-fuel mixture comprises 10 to 30% gasoline, 50 to 80% methanol, and 10 to 25% of bioethanol and has an octane rating of 90 to
98. 15 20. The method of claim 13 wherein the flex-fuel mixture comprises 15 to 30% gasoline, 50 to 75% methanol, and 10 to 25 % of bioethanol and has an octane rating of 90 to 98. 8
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1893308P | 2008-01-04 | 2008-01-04 | |
US61/018,933 | 2008-01-04 | ||
PCT/US2008/088539 WO2009088861A1 (en) | 2008-01-04 | 2008-12-30 | Environmentally friendly ternary transportation flex-fuel of gasoline, methanol and bioethanol |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2008347306A1 true AU2008347306A1 (en) | 2009-07-16 |
AU2008347306B2 AU2008347306B2 (en) | 2012-08-30 |
Family
ID=40843469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2008347306A Ceased AU2008347306B2 (en) | 2008-01-04 | 2008-12-30 | Environmentally friendly ternary transportation flex-fuel of gasoline, methanol and bioethanol |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090172997A1 (en) |
EP (1) | EP2231834A1 (en) |
JP (1) | JP2011509326A (en) |
KR (1) | KR20100100940A (en) |
CN (1) | CN101918518A (en) |
AU (1) | AU2008347306B2 (en) |
CA (1) | CA2711234A1 (en) |
WO (1) | WO2009088861A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102161917A (en) * | 2011-03-11 | 2011-08-24 | 雷菊花 | Biomass clean gasoline |
CN103087785B (en) * | 2011-11-03 | 2015-05-20 | 平凉市中力新能源科技研究院 | Clean fuel for vehicles and preparation method thereof |
CN104830378A (en) * | 2014-02-10 | 2015-08-12 | 四川欧瑞迪能源有限公司 | Renewable clean fuel |
WO2016134009A1 (en) | 2015-02-18 | 2016-08-25 | University Of Southern California | Methanol fuels for internal combustion engines |
DE102022105802A1 (en) * | 2022-03-11 | 2023-09-14 | Obrist Technologies Gmbh | Method for producing a liquid fuel mixture using a carbon reducing process |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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US4384872A (en) * | 1979-03-05 | 1983-05-24 | Institute Of Gas Technology | Stabilized gasoline-alcohol fuel compositions |
IT1193555B (en) * | 1980-09-15 | 1988-07-08 | Snam Progetti | PROCEDURE FOR THE PRODUCTION OF METHANOL MIXTURES AND HIGHER ALCOHOLS AND MIXTURES OBTAINED BY THAT PROCEDURE |
JPS606988B2 (en) * | 1981-03-31 | 1985-02-21 | 繁信 藤本 | Method for producing stable and homogeneous engine fuel composition |
FR2508483A1 (en) * | 1981-06-30 | 1982-12-31 | Inst Francais Du Petrole | PROCESS FOR THE VALORISATION OF VERY RICH CYCLOPARAFFIN CUTTINGS |
CN85104713B (en) * | 1984-06-28 | 1987-12-23 | 发动机燃料联合有限公司 | Engine fuel |
US4705532A (en) * | 1985-07-15 | 1987-11-10 | The Standard Oil Company | Alcohol compositions for blending with gasoline |
DE3711985A1 (en) * | 1987-04-09 | 1988-10-20 | Union Rheinische Braunkohlen | USE OF POLYOLETHERS TO PREVENT OR REDUCE DEPOSITS IN MIXTURE PROCESSING SYSTEMS |
JPH06108066A (en) * | 1992-01-31 | 1994-04-19 | Mitsubishi Oil Co Ltd | Gasoline/methanol-blended fuel for internal combustion engine |
JP2002080867A (en) * | 2000-06-23 | 2002-03-22 | Minoru Nakahama | Gasoline substitute fuel |
US6858048B1 (en) * | 2001-04-18 | 2005-02-22 | Standard Alcohol Company Of America, Inc. | Fuels for internal combustion engines |
US7559961B2 (en) * | 2001-04-18 | 2009-07-14 | Standard Alcohol Company Of America, Inc. | Mixed alcohol fuels for internal combustion engines, furnaces, boilers, kilns and gasifiers |
JP4450618B2 (en) * | 2003-12-24 | 2010-04-14 | コスモ石油株式会社 | Ethanol-containing gasoline |
JP4626954B2 (en) * | 2004-09-03 | 2011-02-09 | Jx日鉱日石エネルギー株式会社 | Gasoline composition |
CA2604569C (en) * | 2005-04-15 | 2014-08-26 | University Of Southern California | Efficient and selective conversion of carbon dioxide to methanol, dimethyl ether and derived products |
KR100655101B1 (en) * | 2006-06-09 | 2006-12-08 | 이용만 | Fuel composition containing bioethanol and biodiesel for internal combustion engine |
WO2007061903A1 (en) * | 2005-11-17 | 2007-05-31 | Cps Biofuels, Inc. | Alternative fuel and fuel additive compositions |
-
2008
- 2008-12-30 AU AU2008347306A patent/AU2008347306B2/en not_active Ceased
- 2008-12-30 JP JP2010541522A patent/JP2011509326A/en active Pending
- 2008-12-30 WO PCT/US2008/088539 patent/WO2009088861A1/en active Application Filing
- 2008-12-30 CA CA2711234A patent/CA2711234A1/en not_active Abandoned
- 2008-12-30 EP EP08870273A patent/EP2231834A1/en not_active Withdrawn
- 2008-12-30 KR KR1020107014775A patent/KR20100100940A/en not_active Application Discontinuation
- 2008-12-30 US US12/345,697 patent/US20090172997A1/en not_active Abandoned
- 2008-12-30 CN CN2008801235967A patent/CN101918518A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2011509326A (en) | 2011-03-24 |
EP2231834A1 (en) | 2010-09-29 |
KR20100100940A (en) | 2010-09-15 |
CA2711234A1 (en) | 2009-07-16 |
AU2008347306B2 (en) | 2012-08-30 |
US20090172997A1 (en) | 2009-07-09 |
CN101918518A (en) | 2010-12-15 |
WO2009088861A1 (en) | 2009-07-16 |
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FGA | Letters patent sealed or granted (standard patent) | ||
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |