WO2010004395A1 - Essence aviation pour moteurs a pistons d'aéronefs, son procédé de préparation - Google Patents
Essence aviation pour moteurs a pistons d'aéronefs, son procédé de préparation Download PDFInfo
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- WO2010004395A1 WO2010004395A1 PCT/IB2009/006114 IB2009006114W WO2010004395A1 WO 2010004395 A1 WO2010004395 A1 WO 2010004395A1 IB 2009006114 W IB2009006114 W IB 2009006114W WO 2010004395 A1 WO2010004395 A1 WO 2010004395A1
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- volume
- aviation
- isopentane
- equal
- bases
- Prior art date
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- 238000002360 preparation method Methods 0.000 title claims description 5
- 239000000203 mixture Substances 0.000 claims abstract description 42
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 claims abstract description 40
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 claims abstract description 12
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 10
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 36
- ZISSAWUMDACLOM-UHFFFAOYSA-N triptane Chemical compound CC(C)C(C)(C)C ZISSAWUMDACLOM-UHFFFAOYSA-N 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- XTDQDBVBDLYELW-UHFFFAOYSA-N 2,2,3-trimethylpentane Chemical compound CCC(C)C(C)(C)C XTDQDBVBDLYELW-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 150000001336 alkenes Chemical class 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000002028 Biomass Substances 0.000 claims description 2
- VCZXRQFWGHPRQB-UHFFFAOYSA-N CC(C)CC(C)(C)C.CC(C)CC(C)(C)C Chemical compound CC(C)CC(C)(C)C.CC(C)CC(C)(C)C VCZXRQFWGHPRQB-UHFFFAOYSA-N 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000006384 oligomerization reaction Methods 0.000 claims description 2
- 239000000700 radioactive tracer Substances 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 239000004129 EU approved improving agent Substances 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 6
- 125000000217 alkyl group Chemical group 0.000 abstract description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 9
- 238000004821 distillation Methods 0.000 description 8
- ANHQLUBMNSSPBV-UHFFFAOYSA-N 4h-pyrido[3,2-b][1,4]oxazin-3-one Chemical group C1=CN=C2NC(=O)COC2=C1 ANHQLUBMNSSPBV-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 150000004982 aromatic amines Chemical class 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 238000002407 reforming Methods 0.000 description 3
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 2
- 238000005804 alkylation reaction Methods 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- 150000002611 lead compounds Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical compound CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 description 2
- MRMOZBOQVYRSEM-UHFFFAOYSA-N tetraethyllead Chemical compound CC[Pb](CC)(CC)CC MRMOZBOQVYRSEM-UHFFFAOYSA-N 0.000 description 2
- HYFLWBNQFMXCPA-UHFFFAOYSA-N 1-ethyl-2-methylbenzene Chemical class CCC1=CC=CC=C1C HYFLWBNQFMXCPA-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- DEIHRWXJCZMTHF-UHFFFAOYSA-N [Mn].[CH]1C=CC=C1 Chemical compound [Mn].[CH]1C=CC=C1 DEIHRWXJCZMTHF-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- -1 alkylate Chemical compound 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- FLTJDUOFAQWHDF-UHFFFAOYSA-N trimethyl pentane Natural products CCCCC(C)(C)C FLTJDUOFAQWHDF-UHFFFAOYSA-N 0.000 description 1
- 150000005199 trimethylbenzenes Chemical class 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
- C10L1/06—Liquid carbonaceous fuels essentially based on blends of hydrocarbons for spark ignition
-
- 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
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
-
- 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
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
- C10L1/1608—Well defined compounds, e.g. hexane, benzene
-
- 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
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
- C10L1/1616—Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
-
- 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
- C10L2300/00—Mixture of two or more additives covered by the same group of C10L1/00 - C10L1/308
- C10L2300/30—Mixture of three components
Definitions
- the present invention relates to a composition of aviation gasoline (AVGAS) lead-free and oxygen-free, for aircraft with piston or reciprocating engines.
- the subject of the present invention is an unleaded aviation gasoline with an octane number MON F2 greater than or equal to 91 and having very good combustion characteristics.
- Aviation gasoline is a carefully crafted product subject to stringent regulations that go hand in hand with any aeronautical application.
- the refinery preparation, aviation gasolines is carried out with bases characterized by both a narrow distillation range and high octane numbers.
- bases are generally constituted by alkylates, reformates and / or isopentane sections, the latter being used in low concentration because of their high volatility.
- the engine octane number or MON is determined relative to the slightly lean mixture operation (cruising speed).
- the refiner generally proceeds, at the stage of manufacturing aviation gasoline, with the addition of an organic lead compound, and more particularly tetraethyl lead (TEP).
- TEP tetraethyl lead
- government authorities tend to lower the lead content, or even to remove this additive, because of its harmful nature for the environment and health.
- the reduction and elimination of lead from the aviation gasoline composition become an objective to be achieved in the short and medium term.
- EP 540 297 and EP 609 089 propose the addition of methylcyclopentadienyl manganese tricarbonyl (MMT) to aviation gasoline as a substitution for lead.
- MMT methylcyclopentadienyl manganese tricarbonyl
- EP 609 089 are described lead-free aviation gasolines, based on alkylates, in which an ether is added such as 1 ⁇ TBE or MTBE and 0.4 to 0.5 g / gallon of manganese in the form of compounds cyclopentadienyl manganese tricarbonyl.
- an ether such as 1 ⁇ TBE or MTBE and 0.4 to 0.5 g / gallon of manganese in the form of compounds cyclopentadienyl manganese tricarbonyl.
- the problem of the invention was not discussed since the gasoline described is not an AVGAS type base: it comprises alkylates, but does not include reformates or isomerate compounds.
- EP 697 033 a lead-free aviation gasoline consisting of isopentane, alkylate, toluene of MON of between 90 and 93 is added with 4 to 20% of an aromatic amine to obtain a gasoline of MON greater than or equal to at 98.
- EP 910 617 discloses a mixture of aromatic amine and alkyltertiobutylether, and optionally a manganese compound which is added to a broad-boiling alkylate constituting aviation gasoline.
- a gasoline for aviation, lead-free comprising a hydrocarbon compound which may be triptane associated with at least one saturated, liquid aliphatic hydrocarbon compound (4 to 10 0 C) and further comprising an alkyl ether (the base thus obtained is not an AVGAS base).
- EP 948 584 proposes an aviation fuel of MON greater than 98 which contains at least 30% by volume of triptane and / or 2,2,3-trimethylpentane.
- EP 1 359 207 discloses a composition of unleaded motor spirit of MON between 80 and 98 containing 5 to 25% by volume triptane and / or 2,2,3-trimethylpentane, 5 to 15% by weight of olefins, 15 to 35% aromatics and 40 to 65% C4-C12 paraffins.
- EP 1 224 247 discloses a lead-free gasoline usable in particular as aviation gasoline MON of at least 80, RON between 90 and 115 containing a C8-C12 alkane with at least 4 branches methyl and / or ethyl.
- the preferred species further comprises triptane and / or 2,2,3-trimethylpentane.
- WO 04/044106 discloses unleaded aviation gasoline compositions of MON ranging from 92 to 98 and containing 10 to 90% by volume of at least one trimethylpentane and at least one C4-C5 paraffin.
- An example of a gasoline composition according to the invention of MON 95 comprises 59% of isooctane, 8% of toluene, Isopentane 24% by volume of alkylate and 16% of alkylate fraction other than isooctane.
- the invention aims at a new composition of unleaded aviation gasoline, intended for aircraft with piston or reciprocating engines. made from hydrocarbon bases generally available in a petroleum refinery, having a high octane number.
- the invention aims in particular aviation gasolines whose characteristics of PCI (lower heating value), vapor pressure (TV) and distillation cup, meet the specifications for aviation gasoline grades described in ASTM D910- 07, except lead content and engine performance.
- the subject of the invention is a composition of aviation gasoline without lead and without oxygenated compound, comprising from 10 to 22% by volume of isopentane, from 30 to 44% by volume of isooctane, from 1.8 at 20% by volume of aromatics of which 1 to 10% by volume of toluene, and containing not more than 1% by volume of triptane, not more than 4% by volume of 2,2,3-trimethylpentane.
- the aviation gasoline composition according to the invention can be obtained simply and economically from a mixture of hydrocarbon bases usually available in the refinery.
- This composition has the following characteristics: a MON greater than or equal to 91, preferably greater than or equal to 92, and less than or equal to 95, an RON (research octane number) greater than or equal to 95, preferably greater than or equal to at 96, advantageously greater than or equal to 98, and less than or equal to 100, an ICP greater than or equal to 43.4, preferably greater than or equal to 43.5, and advantageously greater than or equal to 43.53 MJ / kg, a vapor pressure at 37.8 ° C. preferably varying between 38 and 49 kPa, preferably between 38.6 and 48.4 kPa,
- the invention firstly relates to a composition of aviation gasoline without lead and without oxygenated compound, which comprises from 10 to 22% by volume of isopentane (2-methyl butane), from 30 to 44% by volume of isooctane (2,2,4-trimethylpentane), from 1.8 to 20% by volume of aromatics of which 1 to 10% by volume of toluene, and containing not more than 1% by volume of triptane ( 2,2,3-trimethylbutane) and not more than 4% by volume of 2,2,3-trimethylpentane.
- This composition has a MON greater than or equal to 91, preferably greater than or equal to 92, and less than or equal to 95, an RON greater than or equal to 95, preferably greater than or equal to 96, advantageously greater than or equal to 98, and less than or equal to 100, an ICP greater than or equal to 43.4, preferably greater than or equal to 43.5, and advantageously greater than or equal to 43.53 MJ / kg, a vapor pressure at 37.8 ° C varying preferably between 38 and 49 kPa, preferably between 38.6 and 48.4 kPa
- the aviation gasoline composition according to the invention comprises from 14 to 22% by volume of isopentane, from 30 to 40% by volume of isooctane, from 8 to 20% by volume of aromatics, of which preferably 4 to 9% by volume of toluene.
- the aviation gasoline composition according to the invention comprises from 20 to 22% by volume of isopentane, from 30 to 32% by volume of isooctane, preferably from 31 to 32%, from 15 to 18% by weight. % by volume of aromatics, preferably 7 to 9% by volume of toluene.
- the subject of the invention is also a process for the preparation of the composition defined above.
- the process according to the invention consists in mixing at least one isopentane section B1, at least one base of aviation alkylate type B2 and at least one base of the aviation type B3 format.
- the process according to the invention consists in mixing
- the base B 1 comprises at least 90% by volume of isopentane, and advantageously at least 95%;
- the isopentane bases B 1 generally do not contain more than 1% by volume of olefins; these light paraffmic bases can for example come from the lightest fractions of distillate produced by atmospheric distillation of crude oil and / or from isomerization units of alkanes;
- At least one aviation alkylate base B2 consisting essentially of isoparaffins comprising 6 to 9 carbon atoms and preferably at least 90% by volume of isoparaffins comprising 6 to 9 carbon atoms;
- the aviation alkylates generally comprise at least 95%, preferably at least 98.5% by volume of isoparaffins, of which at least 65%, preferably at least 70%, and advantageously at least 80% by volume of isoparaffins, C8;
- the alkylate bases B2 comprise at least 45%, preferably at least 48% by volume of isooctane, and advantageously at least 30%, preferably at least 34% by volume of the other C 8 isoparaffins;
- these aviation alkylate bases can come from different crude oil processing processes, generally present in refineries;
- B2 bases are generally derived from the process of alkylation of isobutane with light olefins;
- the reformate bases are generally derived from the reforming of the direct distillation species and the isopentane
- the aviation reformates generally consist of a hydrocarbon fraction containing at least 70%, preferably at least 85%, by volume of aromatics comprising toluene (in general from 35 to 75%, preferably from 45 to 70%, in volume), C8 alkylaromatic (generally 15 to 50% by weight ethylbenzene, and ortho, meta, para-xylene) and C9 alkylaromatic (generally from 5 to 25% by weight of propylbenzene, methylethylbenzenes and trimethylbenzenes), the absolute contents and relative proportions of the various components being able to vary with the cutting points, the nature of the feedstock reformed, the type of catalyst used and the conditions operations of the reforming; preferably, the B3 aviation alkylate bases used in the
- the base Bi is "essentially composed of the compounds ." means that said compounds ... represent at least 70% of the volume of said base Bi.
- Each base or cup used in the composition of the gasoline according to the invention ie the bases B 1 to B 3 and any additional base, may have undergone, in all or in part, a desulphurisation and / or denitrogenation treatment. and possibly dearomatization at any stage of its elaboration.
- bases which have been hydrotreated under more or less severe conditions including hydrosulfuration and / or saturation of aromatic and olefinic compounds and / or hydrodeazotation may be used.
- the aviation gasoline according to the invention advantageously has a sulfur content (measured according to the standard ASTM D 1266 or ASTM D2622 ° less than or equal to 500 ppm, preferably less than or equal to 100 ppm, or even less than or equal to 50 ppm , and even more preferably less than or equal to 10 ppm in order to satisfy the characteristics set for example by the standard
- the aviation gasoline according to the invention may contain one or more additives, which the skilled person will easily choose among the many additives conventionally used for aviation gasolines. These include, but in a way non-limiting additives such as antioxidants, anti-ice, antistatic additives, corrosion inhibitors / lubricant enhancers, cold properties improvers, tracer additives, dyes, detergents and mixtures thereof.
- additives such as antioxidants, anti-ice, antistatic additives, corrosion inhibitors / lubricant enhancers, cold properties improvers, tracer additives, dyes, detergents and mixtures thereof.
- additives are generally incorporated into the gasoline in amounts of less than 1000 ppm.
- the gasoline will be considered as "without oxygenated compound" according to the definition given above.
- antioxidants chosen from hindered phenols (such as 2,6-di-t-butyl-4-methylphenol (BHT), 2,6-di-t-butyl- phenol and 2,4-di-methyl-6-t-butylphenol) usually used in aviation gasoline.
- the invention also relates to the use of the composition defined above as an aircraft piston engine fuel.
- the bases B1 (isopentane section), B2 (aviation alkylate) and B3 (aviation reformate), the compositions of which are given in table 1 below, are used, the quantities indicated are expressed in percent by volume.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/001,932 US8741126B2 (en) | 2008-06-30 | 2009-06-29 | Aviation gasoline for aircraft piston engines, preparation process thereof |
BRPI0915230A BRPI0915230A2 (pt) | 2008-06-30 | 2009-06-29 | gasolina de aviação para motores a pistão de aeronave, processo de preparação |
EP09794052.2A EP2303997B1 (fr) | 2008-06-30 | 2009-06-29 | Essence aviation pour moteurs a pistons d'aéronefs, son procédé de préparation |
ES09794052.2T ES2622178T3 (es) | 2008-06-30 | 2009-06-29 | Gasolina para aviación para motores de pistones de aeronaves, su procedimiento de preparación |
CA2729662A CA2729662C (fr) | 2008-06-30 | 2009-06-29 | Essence aviation pour moteurs a pistons d'aeronefs, son procede de preparation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0803654 | 2008-06-30 | ||
FR0803654A FR2933102B1 (fr) | 2008-06-30 | 2008-06-30 | Essence aviation pour moteurs a pistons d'aeronefs, son procede de preparation |
Publications (1)
Publication Number | Publication Date |
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WO2010004395A1 true WO2010004395A1 (fr) | 2010-01-14 |
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PCT/IB2009/006114 WO2010004395A1 (fr) | 2008-06-30 | 2009-06-29 | Essence aviation pour moteurs a pistons d'aéronefs, son procédé de préparation |
Country Status (8)
Country | Link |
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US (1) | US8741126B2 (fr) |
EP (1) | EP2303997B1 (fr) |
BR (1) | BRPI0915230A2 (fr) |
CA (1) | CA2729662C (fr) |
ES (1) | ES2622178T3 (fr) |
FR (1) | FR2933102B1 (fr) |
PT (1) | PT2303997T (fr) |
WO (1) | WO2010004395A1 (fr) |
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US8628594B1 (en) | 2009-12-01 | 2014-01-14 | George W. Braly | High octane unleaded aviation fuel |
US10260016B2 (en) | 2009-12-01 | 2019-04-16 | George W. Braly | High octane unleaded aviation gasoline |
US10364399B2 (en) | 2017-08-28 | 2019-07-30 | General Aviation Modifications, Inc. | High octane unleaded aviation fuel |
US10377959B2 (en) | 2017-08-28 | 2019-08-13 | General Aviation Modifications, Inc. | High octane unleaded aviation fuel |
US10550347B2 (en) | 2009-12-01 | 2020-02-04 | General Aviation Modifications, Inc. | High octane unleaded aviation gasoline |
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- 2009-06-29 US US13/001,932 patent/US8741126B2/en not_active Expired - Fee Related
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- 2009-06-29 BR BRPI0915230A patent/BRPI0915230A2/pt not_active Application Discontinuation
- 2009-06-29 ES ES09794052.2T patent/ES2622178T3/es active Active
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8628594B1 (en) | 2009-12-01 | 2014-01-14 | George W. Braly | High octane unleaded aviation fuel |
US10260016B2 (en) | 2009-12-01 | 2019-04-16 | George W. Braly | High octane unleaded aviation gasoline |
US10550347B2 (en) | 2009-12-01 | 2020-02-04 | General Aviation Modifications, Inc. | High octane unleaded aviation gasoline |
US11098259B2 (en) | 2009-12-01 | 2021-08-24 | General Aviation Modifications, Inc. | High octane unleaded aviation gasoline |
US11674100B2 (en) | 2009-12-01 | 2023-06-13 | General Aviation Modifications, Inc. | High octane unleaded aviation gasoline |
US8324437B2 (en) | 2010-07-28 | 2012-12-04 | Chevron U.S.A. Inc. | High octane aviation fuel composition |
US10364399B2 (en) | 2017-08-28 | 2019-07-30 | General Aviation Modifications, Inc. | High octane unleaded aviation fuel |
US10377959B2 (en) | 2017-08-28 | 2019-08-13 | General Aviation Modifications, Inc. | High octane unleaded aviation fuel |
Also Published As
Publication number | Publication date |
---|---|
US8741126B2 (en) | 2014-06-03 |
FR2933102A1 (fr) | 2010-01-01 |
CA2729662C (fr) | 2016-09-20 |
CA2729662A1 (fr) | 2010-01-14 |
FR2933102B1 (fr) | 2010-08-27 |
BRPI0915230A2 (pt) | 2018-06-12 |
US20110114536A1 (en) | 2011-05-19 |
EP2303997A1 (fr) | 2011-04-06 |
ES2622178T3 (es) | 2017-07-05 |
PT2303997T (pt) | 2017-04-24 |
EP2303997B1 (fr) | 2017-03-08 |
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