CN104673410A - Low-lead aviation gasoline and production method thereof - Google Patents
Low-lead aviation gasoline and production method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of aviation fuel, and discloses a low-lead aviation gasoline and a production method thereof. The low-lead aviation gasoline comprises the following components in percentage by volume: 25%-60% of front-fraction alkylate oil, 18%-60% of super fraction alkylate oil, 10%-22% of methylbenzene, 3%-14% of dimethylbenzene, 10%-21% of carbon-5 and less than 0.53ml/l of lead tetraethyl. These components are mixed under a stirring condition; the isopentane content in the obtained low-lead aviation gasoline reaches 0.5%-22%; the content of isooctane reaches 20%-80%; and the motor octane number is greater than 99.5. The front-fraction alkylate oil and the super fraction alkylate oil are obtained by rectifying alkylate oil; the octane number index in the aviation gasoline is effectively improved; components with relatively much colloid are eliminated; carbon formation in a combustion chamber of an aircraft engine is avoided; and the security of the aircraft is improved.
Description
Technical field
The invention belongs to aviation fuel technical field, be specially a kind of low plumbous aviation spirit and production method thereof.
Background technology
So-called aviation spirit refers to the gasoline having and be applicable to provide the specified property of power for flyer by being filled into piston engine.The production of this gasoline and use are subject to strict control and supervision, and indices must meet national standard.Relative to motor spirit, the boiling range of aviation spirit is narrower, and end point temperature is no more than 170 degree; Octane value is also higher, and the motor-method octane number of No. 100 conventional aviation spirit is 99.5 or higher.In addition, special requirement is also had to other physicochemical property.Such as, the vapour pressure of aviation spirit must not more than 49 kPas, to avoid in use producing vapour lock; Freezing ability is strong, low reach the environment of subzero 58 degree Celsius under, ice crystal still can not be had to be formed.Even if because aircraft engine also must possess good working order under the condition of high loading, thus require that aviation spirit must not produce due to the reason of its physical and chemical character for shortage of oil, or spontaneous ignition phenomenon occurs.
Generally adopt the aviation spirit standard that ASTM D910 specifies in the world, the low plumbous aviation spirit lead content of a kind of 100LL wherein specified must not higher than 0.56 grams per liter, or the content of tetraethyllead must not more than 0.53 milliliter/liter, in contrast to this, the twice of the standard gauge definite value for this reason of the tetraethyllead content in GB No. 100 aviation spirit.In aviation spirit, add tetraethyllead is octane value in order to improve gasoline, avoid or reduce the phenomenon of detonation of engine, make burning more stable, because the own octane value of oil base stock adopted when GB aviation spirit is produced is not high, the tetraethyllead adding more is needed to make aviation spirit reach the requirement of octane value standard.For the object of protection of the environment, motor spirit no longer allows to add leaded material, and the tetraethyllead addition gradually reduced in aviation spirit is also a kind of megatrend, and this just has higher requirement to the oil base stock of producing aviation spirit.
For ensureing the high-octane rating of aviation spirit, use less tetraethyllead additive, this oil base stock itself must reach higher OR Octane Requirements simultaneously.No. 100, GB compares another difference with the 100LL aviation spirit of ASTM D910, the upper limit of national regulations aromatic hydrocarbon must not exceed volume ratio 35%, and ASTM D910 does not specify the content of aromatic hydrocarbon.In general, aromatic hydrocarbon has higher octane value, as aviation spirit component, greatly can improve the octane value of gasoline, can reach high-octane requirement.But the excessive use of aromatic hydrocarbon can have a strong impact on vapour pressure index and the combustion heat value index of aviation spirit.In order to meet the requirement of each index, while minimizing tetraethyllead additive amount, aromatic hydrocarbon content can not exceed the content of volume ratio 30%, or generally can not more than the content of 25% volume ratio.
In aviation spirit production process, take the oil base stock that is suitable for of crucial importance, foreign technology adopts raw material based on so-called alkylate oil mostly.Commercially available alkylate oil normally adopts carbon-4 modifying process to obtain, and generally not containing alkene, aromatic hydrocarbons, sulphur content is low, and susceptibility is low, and the capability of antidetonance is good, and motor-method octane number can reach 91-93.But this alkylate oil is usually containing up to the carbon-10 of 10% or the component of more high-carbon content, and its final boiling point is higher, generally up to 190 degree Celsius, more up to 195 degree Celsius, even up to facility more than 200 degree, so directly can not be used for production aviation spirit.If not the micro-high boiling point composition in oil base stock component, the carbon hydrocarbon compound composition that such as carbon-12 or carbon content are higher, more than-10 carbon hydrocarbon compound content of carbon is controlled even, these high carbon speciess just likely form carbon distribution in aircraft engine, cause running of an engine not normal.Although the aviation spirit boiling range that standard specifies is shorter, final boiling point must not higher than 170 degree Celsius, these high carbon speciess are served to the effect of restriction, but when increasing the content of volatile hydrocarbon polymer such as fatty chain hydrocarbon, just likely mask the high carbon species of these trace, making it can not detect analysis to boiling range causes visible to affect, even can not cause obvious impact to the index of evaporation of residual amount.But, in engine long-term operation, still likely produce carbon distribution problem.
Utilize obtainable raw material production go out lead content low, reach or require it is industry problem urgently to be resolved hurrily higher than the 100LL aviation spirit that international standard ASTM D910 specifies.
Summary of the invention
The object of this invention is to provide a kind of low plumbous aviation spirit and production method thereof, by existing specific production technique, efficiently solve the problem that aviation spirit lead content is high, get rid of containing the more high boiling component material of colloid, avoid aircraft engine combustion-chamber deposit to be formed, improve the security of aircraft.The aviation spirit utilizing technical scheme provided by the invention to produce reaches the standard-required of ASTM D910 completely, is applicable to the use of piston engine flyer.
The technical solution adopted in the present invention is: a kind of low plumbous aviation spirit, comprises following component according to volume percent: front-end volatiles alkylate oil: 25% ~ 60%; Super cut alkylate oil: 18% ~ 60%; Toluene: 10% ~ 22%; Dimethylbenzene: 3% ~ 14%; Carbon-5:10% ~ 21%; Tetraethyllead: be less than 0.53 milliliter/liter; By controlling the proportioning of front-end volatiles alkylate oil, super alkylate oil and carbon-5, according to volume percent, make the iso-pentane in final mixture reach 0.5% ~ 22%, octane-iso reaches 20% ~ 80%.
Described front-end volatiles alkylate oil is that the alkylate oil by cutting market can obtain obtains, concrete grammar is: in a kind of rectifier unit, alkylate oil is introduced evaporating kettle at the bottom of tower, evaporating kettle temperature at the bottom of control tower is at 135 to 170 degree, can optimal control spend 135 to 160, the alkylate oil steam produced rises to overhead condenser in tower, condenser temperature controls at 30 degree to 50 degree, can optimal control spend 35 to 45, pressure-controlling is under atmosphere pressure state, phlegma within the condenser returns rectifying tower, mass transfer is carried out with the alkylate oil steam risen in tower body, finally be back to evaporating kettle at the bottom of tower, front-end volatiles alkylate oil, also can from tower body extraction from condenser extraction, this rectifying tower can be column plate type, also can be material filling type, or other tower body form familiar in the industry, rectifying tower can adopt operate continuously or batch operation, and the ratio control of phlegma quantity of reflux and front-end volatiles alkylate oil, in 10 to 1 scopes, better controls between 6 to 2, its density of front-end volatiles alkylate oil obtained thus is 0.690 to 0.700 grams per milliliter, and usually at 0.692 to 0.699 grams per milliliter, the content volume per-cent of octane-iso is higher than 20%, and motor-method octane number is greater than 91, is better greater than 92.
Described super cut alkylate oil also can be obtained by the alkylate oil that cutting market can obtain, specific practice is: in the device of spiral-screen column of cascade towers, alkylate oil is first introduced the first tower, object be cutting remove most of boiling point in alkylate oil lower than 90 degree Celsius, be more preferably 93 degree, the preferably component of 95 degree, the second tower is introduced again cutting the alkylate oil getting rid of most of low boiling component, cutting remove most of boiling point higher than 120 degree Celsius, better higher than 110 degree, preferably higher than the high boiling component of 105 degree; The phlegma collected from the second tower condenser to may be used for the production of aviation spirit as super cut alkylate oil, its density is 0.692 to 0.702 grams per milliliter, better at 0.695 to 0.700 grams per milliliter, preferably at 0.697 to 0.699 grams per milliliter, isooctane content volume ratio is higher than 28%, better higher than 32%, preferably higher than 34%, motor-method octane number is greater than 93; Introducing point alkylate oil being introduced the first tower is the tower reactor be positioned at the bottom of tower, its temperature general control at 40 degree to 130 degree Celsius, better at 80 degree to 130 degree, pressure-controlling at barometric point to gauge pressure 1 kg/cm; The condenser temperature of the first tower controls at 30 degree to 95 degree Celsius, better at 50 degree to 90 degree Celsius, pressure-controlling at barometric point to gauge pressure 1 kg/cm; Deliver to gas recovery system from the noncondensable gas of the first tower condenser discharge to be reclaimed, the heavy constituent that tower reactor is discharged is sent into the second tower and is cut high boiling component wherein further as raw material, the second tower tower reactor introduced by material from the first tower, its temperature controls at 90 degree to 170 degree Celsius, better at 110 degree to 160 degree, preferably at 110 degree to 155 degree, pressure at barometric point to gauge pressure 2.5 kg/cm, better in gauge pressure 1.0 to 2.0 kg/cm; The condenser temperature of the second tower controls at 40 degree to 135 degree Celsius, better at 50 degree to 95 degree, pressure at barometric point to gauge pressure 2.5 kg/cm, better in gauge pressure 1.0 to 2.0 kg/cm; Identical with production front-end volatiles alkylate oil, the phlegma control of reflux ratio of two towers 10 to 1, better 6 to 1; The rectifying tower used can be the rectifying tower of column plate type, packing tower or other tower body form; For the person of ordinary skill of the art, under the condition that operating parameters remains unchanged, after can easily the order of two towers being exchanged, the object cutting out super alkylate oil can be reached equally; Also can change operational condition and raw material in order by any one tower of operation and reach the object of the same super alkylate oil of cutting.
Described toluene can adopt commercially available industrial grade toluene, its content at weight percent more than 99%, better more than 99.5%.
Described dimethylbenzene can adopt commercially available xylene mixture, and wherein p-xylene weight per-cent is 15% to 22%, and m-dimethylbenzene is 35% to 50%, and ortho-xylene is 16% to 29%, and ethylbenzene is 12% to 22%.
Described carbon-5 can adopt the mixture of commercially available pentane and iso-pentane, and wherein isopentane content should be greater than 50%, is better greater than 65%.
Described a kind of aviation spirit, in above-mentioned percent by volume content, preferred following proportioning: front-end volatiles alkylate oil: 29% to 45%; Super cut alkylate oil: 22% to 42%; Toluene: 10% to 18%; Dimethylbenzene: 3% to 8%; Carbon-5:11% is to 18%; Tetraethyllead: be less than 0.53 milliliter/liter; The formula utilizing this technology to provide and raw material, the iso-pentane in aviation spirit can reach volume ratio 8% to 20%, and better in 12% value 20%, isooctane content reaches 28% to 50%, better 30% to 45%.
Utilize aviation spirit formula provided by the invention, technician in the industry can produce the 100LL aviation spirit reaching ASTM D910 standard-required easily, specific practice is: according to recipe requirements, get appropriate super cut alkylate oil, front-end volatiles alkylate oil, toluene, dimethylbenzene, carbon-5 is sequentially added into stirred pot, rotating speed of agitator controls at 100 revs/min or following, better at 50 revs/min or following, preferably at 30 revs/min or following, temperature and pressure is room temperature and normal atmosphere, under the condition stirred, continue to be stirred to whole additives mixed after adding tetraethyllead and ethylene dibromide mixed solution even.The alr mode that this stirring also can be familiar with by other industry technician such as gas spargings realizes, but must not produce change to the various compositions in batching.
Beneficial effect of the present invention: each reasonable mixture ratio of components of the present invention, by existing specific production unit and specific production technique, can effectively improve octane rating index in aviation spirit, greatly reduce the consumption of tetraethyllead, get rid of containing the more high boiling component material of colloid, avoid aircraft engine combustion-chamber deposit to be formed, improve aircraft safety.
Embodiment
Conduct further description the present invention below in conjunction with embodiment, made those skilled in the art can be implemented according to this by specification sheets word, protection scope of the present invention is not limited by embodiments of the present invention.
Embodiment 1:
A kind of low plumbous aviation spirit and production method thereof, according to volume percent: it comprises front-end volatiles alkylate oil: 28.6%; Super cut alkylate oil: 37.7%; Toluene: 11.4%; Dimethylbenzene: 4.3%; Carbon-5:18%, above raw material is sequentially added into stirred pot, rotating speed of agitator controls at 100 revs/min, temperature and pressure is room temperature and barometric point, adds tetraethyllead 0.45 milliliter/liter after mixing again, continues stirring ten minutes, the aviation spirit obtained is analyzed according to ASTM D910 specified standards method, motor-method octane number reaches more than 103, and end point temperature 135 degrees Celsius, vapour pressure reaches 44 kPas.
Embodiment 2:
A kind of low plumbous aviation spirit and production method thereof, according to volume percent: front-end volatiles alkylate oil: 39.1%; Super cut alkylate oil: 25.7%; Toluene: 14%; Dimethylbenzene: 4.5%; Carbon-5:16.7%, above raw material is sequentially added into stirred pot, rotating speed of agitator controls at 30 revs/min, temperature and pressure is room temperature and barometric point, adds tetraethyllead 0.45 milliliter/liter after mixing again, continues stirring 20 minutes, the aviation spirit obtained is analyzed according to ASTM D910 specified standards method, motor-method octane number reaches more than 103, and end point temperature 139 degrees Celsius, vapour pressure reaches 43.9 kPas.
By above embodiment and contriver's test of many times, above each component, according to volume percent, drops on its advantage in following volume range particularly evident: front-end volatiles oil: 29% ~ 45%; Super distillate: 22% ~ 42%; Toluene: 10% ~ 18%; Dimethylbenzene: 3% ~ 8%; Carbon-5:10% ~ 18%; Tetraethyllead: < 0.53 milliliter/liter; Form the aviation spirit obtained accordingly and contain iso-pentane: 8% ~ 20%; Octane-iso: 28% ~ 50%; And other alkane hydrocarbon content is respectively below 20%.
In above embodiment, described front-end volatiles alkylate oil is obtained by gasoline alkylate rectifying, the acquisition of this component eliminates light constituent in alkylate oil and boiling point higher than the heavy component of 170 DEG C, the impact that the unstable eliminating raw material gasoline alkylate composition is brought, solves that colloid in aviation spirit is high, carbon distribution is serious, saturated vapor pressure changes large problem.
In above embodiment, described super cut alkylate oil is also obtained by gasoline alkylate rectifying.Utilize technical scheme provided by the invention, important component octane-iso in super cut alkylate oil has risen to more than 32%, make aviation spirit while guarantee reaches the evaporation boiling range of standard-required, octane rating index is largely increased, and the addition of tetraethyllead is declined to a great extent.
Formula provided by the invention and method can easily for the production of high standard aviation spirit.Wherein, front-end volatiles alkylate oil and super cut alkylate oil can utilize method provided by the invention to be obtained by rectifying alkylate oil easily, and other raw material also can obtain easily from the market.Another advantage of the present invention is, the discarded oil plant produced in the process of cut and super cut alkylate oil before manufacture can be recycled, as the raw material of production alkylate oil or for the production of other oil product, thus do not produce any environmentally hazardous waste.
It will be appreciated that; the above is general planning and the preferred implementation of technology provided by the invention; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement to described basic technical scheme and embodiment and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (8)
1. a low plumbous aviation spirit, is characterized in that: comprise following component according to volume percent: front-end volatiles alkylate oil: 25% ~ 60%; Super cut alkylate oil: 18% ~ 60%; Toluene: 10% ~ 22%; Dimethylbenzene: 3% ~ 14%; Carbon-5:10% ~ 21%; Tetraethyllead: be less than 0.53 milliliter/liter.
2. a kind of low plumbous aviation spirit as claimed in claim 1, is characterized in that: preferred following proportioning: front-end volatiles alkylate oil: 29% ~ 45%; Super cut alkylate oil: 22% ~ 42%; Toluene: 10% ~ 18%; Dimethylbenzene: 3% ~ 8%; Carbon-5:11% ~ 18%; Tetraethyllead: be less than 0.53 milliliter/liter.
3. the production method of a kind of low plumbous aviation spirit as described in claim 1 and claim 2, it is characterized in that: according to recipe requirements, get appropriate super cut alkylate oil, front-end volatiles alkylate oil, toluene, dimethylbenzene, carbon-5 is sequentially added into stirred pot, rotating speed of agitator controls at 100 revs/min or following, better at 50 revs/min or following, preferably at 30 revs/min or following, temperature and pressure is room temperature and normal atmosphere, under the condition stirred, continue to be stirred to whole additives mixed after adding tetraethyllead even.
4. the low plumbous aviation spirit of the one as described in claim 1 and claim 2, it is characterized in that: described front-end volatiles alkylate oil is that the alkylate oil by cutting market can obtain obtains, concrete grammar is: in a kind of rectifier unit, alkylate oil is introduced evaporating kettle at the bottom of tower, evaporating kettle temperature at the bottom of control tower is at 135 to 170 degree, can optimal control spend 135 to 160, the alkylate oil steam produced rises to overhead condenser in tower, condenser temperature controls at 30 degree to 50 degree, can optimal control spend 35 to 45, pressure-controlling is under atmosphere pressure state, phlegma within the condenser returns rectifying tower, mass transfer is carried out with the alkylate oil steam risen in tower body, finally be back to evaporating kettle at the bottom of tower, front-end volatiles alkylate oil, also can from tower body extraction from condenser extraction, this rectifying tower can be column plate type, also can be material filling type, or other tower body form familiar in the industry, rectifying tower can adopt operate continuously or batch operation, and the ratio control of phlegma quantity of reflux and front-end volatiles alkylate oil, in 10 to 1 scopes, better controls between 6 to 2, its density of front-end volatiles alkylate oil obtained thus is 0.690 to 0.700 grams per milliliter, and usually at 0.692 to 0.699 grams per milliliter, the content volume per-cent of octane-iso is higher than 20%, and motor-method octane number is greater than 91, is better greater than 92.
5. the low plumbous aviation spirit of the one as described in claim 1 and claim 2, it is characterized in that: described super cut alkylate oil can be obtained by the alkylate oil that cutting market can obtain, specific practice is: in the device of spiral-screen column of cascade towers, alkylate oil is first introduced the first tower, object is that cutting to remove in alkylate oil most of boiling point lower than 90 degree Celsius, be more preferably 93 degree, the preferably component of 95 degree, the second tower is introduced again cutting the alkylate oil getting rid of most of low boiling component, cutting removes most of boiling point higher than 120 degree Celsius, better higher than 110 degree, preferably higher than the high boiling component of 105 degree, the phlegma collected from the second tower condenser to may be used for the production of aviation spirit as super cut alkylate oil, its density is 0.692 to 0.702 grams per milliliter, better at 0.695 to 0.700 grams per milliliter, preferably at 0.697 to 0.699 grams per milliliter, isooctane content volume ratio is higher than 28%, better higher than 32%, preferably higher than 34%, motor-method octane number is greater than 93, introducing point alkylate oil being introduced the first tower is the tower reactor be positioned at the bottom of tower, its temperature general control at 40 degree to 130 degree Celsius, better at 80 degree to 130 degree, pressure-controlling at barometric point to gauge pressure 1 kg/cm, the condenser temperature of the first tower controls at 30 degree to 95 degree Celsius, better at 50 degree to 90 degree Celsius, pressure-controlling at barometric point to gauge pressure 1 kg/cm, deliver to gas recovery system from the noncondensable gas of the first tower condenser discharge to be reclaimed, the heavy constituent that tower reactor is discharged is sent into the second tower and is cut high boiling component wherein further as raw material, the second tower tower reactor introduced by material from the first tower, its temperature controls at 90 degree to 170 degree Celsius, better at 110 degree to 160 degree, preferably at 110 degree to 155 degree, pressure at barometric point to gauge pressure 2.5 kg/cm, better in gauge pressure 1.0 to 2.0 kg/cm, the condenser temperature of the second tower controls at 40 degree to 135 degree Celsius, better at 50 degree to 95 degree, pressure at barometric point to gauge pressure 2.5 kg/cm, better in gauge pressure 1.0 to 2.0 kg/cm, identical with production front-end volatiles alkylate oil, the phlegma control of reflux ratio of two towers 10 to 1, better 6 to 1, the rectifying tower used can be the rectifying tower of column plate type, packing tower or other tower body form.
6. the low plumbous aviation spirit of the one as described in claim 1 and claim 2, is characterized in that: described toluene can adopt commercially available industrial grade toluene, its content at weight percent more than 99%, better more than 99.5%.
7. the low plumbous aviation spirit of the one as described in claim 1 and claim 2, it is characterized in that: described dimethylbenzene can adopt commercially available xylene mixture, wherein p-xylene weight per-cent is 15% to 22%, m-dimethylbenzene is 35% to 50%, ortho-xylene is 16% to 29%, and ethylbenzene is 12% to 22%.
8. the low plumbous aviation spirit of the one as described in claim 1 and claim 2, it is characterized in that: described carbon-5 can adopt the mixture of commercially available pentane and iso-pentane, wherein isopentane content should be greater than 50%, is better greater than 65%.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132049A (en) * | 2015-08-17 | 2015-12-09 | 成都天丰清洁能源发展有限公司 | Cleaning blending gasoline adopting alkylation oil as main component |
| CN105419887A (en) * | 2016-01-04 | 2016-03-23 | 北京中元成能源技术股份有限公司 | First filled oil and preparation method thereof |
| CN106590772A (en) * | 2015-10-15 | 2017-04-26 | 中国石油化工股份有限公司 | Low-lead aviation gasoline and preparation method thereof |
| CN106753615A (en) * | 2017-01-23 | 2017-05-31 | 德法尔(平原)科技有限公司 | A kind of unleaded aviation gasoline and preparation method thereof |
| CN108315060A (en) * | 2018-02-07 | 2018-07-24 | 河北新启元能源技术开发股份有限公司 | No. 91 unleaded aviation gasoline of one kind and its production method |
| CN115074161A (en) * | 2021-03-15 | 2022-09-20 | 中国石油化工股份有限公司 | Aviation gasoline composition, aviation gasoline and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103965974A (en) * | 2014-05-16 | 2014-08-06 | 中国民用航空总局第二研究所 | Lead-free aviation gasoline and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103965974A (en) * | 2014-05-16 | 2014-08-06 | 中国民用航空总局第二研究所 | Lead-free aviation gasoline and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132049A (en) * | 2015-08-17 | 2015-12-09 | 成都天丰清洁能源发展有限公司 | Cleaning blending gasoline adopting alkylation oil as main component |
| CN106590772A (en) * | 2015-10-15 | 2017-04-26 | 中国石油化工股份有限公司 | Low-lead aviation gasoline and preparation method thereof |
| CN106590772B (en) * | 2015-10-15 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of low lead aviation gasoline and preparation method thereof |
| CN105419887A (en) * | 2016-01-04 | 2016-03-23 | 北京中元成能源技术股份有限公司 | First filled oil and preparation method thereof |
| CN105419887B (en) * | 2016-01-04 | 2017-09-29 | 北京中燕恒成能源有限公司 | A kind of just charge of oil and preparation method thereof |
| CN106753615A (en) * | 2017-01-23 | 2017-05-31 | 德法尔(平原)科技有限公司 | A kind of unleaded aviation gasoline and preparation method thereof |
| CN108315060A (en) * | 2018-02-07 | 2018-07-24 | 河北新启元能源技术开发股份有限公司 | No. 91 unleaded aviation gasoline of one kind and its production method |
| CN115074161A (en) * | 2021-03-15 | 2022-09-20 | 中国石油化工股份有限公司 | Aviation gasoline composition, aviation gasoline and preparation method thereof |
| CN115074161B (en) * | 2021-03-15 | 2023-09-22 | 中国石油化工股份有限公司 | Aviation gasoline composition, aviation gasoline and preparation method thereof |
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Effective date of registration: 20200201 Address after: 257 200 The Blue Economic Development Zone of Hekou District, Dongying City, Shandong Province, passes through the east of Sanlu Road and the north of Binyuan Road. Patentee after: Dongying Hua Ya Lian Aviation Fuel Co., Ltd. Address before: 253100 Eastern County of Plain Economic Development Zone, Shandong Patentee before: DEFAR (PLAIN) TECHNOLOGY CO., LTD. |
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