CN102660337A - Method for preparing novel clean synthetic diesel oil - Google Patents
Method for preparing novel clean synthetic diesel oil Download PDFInfo
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- CN102660337A CN102660337A CN201210143631XA CN201210143631A CN102660337A CN 102660337 A CN102660337 A CN 102660337A CN 201210143631X A CN201210143631X A CN 201210143631XA CN 201210143631 A CN201210143631 A CN 201210143631A CN 102660337 A CN102660337 A CN 102660337A
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Abstract
The invention relates to a method for preparing novel clean synthetic diesel oil and mainly solves the problems that the conventional diesel oil is low in cetane number and is combusted insufficiently in an engine, and a large amount of solid pollutant, COx and NOx are discharged. The method mainly comprises the following steps of: uniformly mixing 5 to 30 mass percent of diesel oil substitute component, 5 to 30 mass percent of additive and 40 to 90 mass percent of diesel oil at normal temperature, standing for 8 to 10 hours, and after liquid is clarified, canning to obtain the novel clean synthetic diesel. The diesel oil substitute component is polyformaldehyde dimethyl ether, methylal or mixture of polyformaldehyde dimethyl ether and methylal in any ratio. By the method, the combustion efficiency of the synthetic diesel oil is improved, the discharge of free carbon and harmful gas is reduced, the quality of the synthetic diesel oil is improved, cost is reduced, a novel way from coal to oils is developed, and the method has good social and economic benefit. The novel clean synthetic diesel oil can be used independently and can also be mixed with petroleum diesel oil to be used, and the engine is not needed to be changed.
Description
Technical field
The present invention relates to a kind of preparation method of novel cleaning combined diesel oil, belong to the petrochemical technology field.
Background technology
China is oil-poor a, weak breath and the abundant relatively country of coal resources.By 2011, the China's oil residual recoverable reserves is 2,000,000,000 tons of less thaies, showed that according to 2006 annual datas statistics the RP ratio of the coal of China, Sweet natural gas, oil was respectively 48 years, 41.8 and 12.1.The petroleum import amount had reached 2.525 hundred million tons in 2011, and externally interdependency reaches 55.2%.From endowment of resources and consumption structure, coal is most important, the most reliable primary energy source of China's midium or long term, and the status in China's industrial development can not be substituted.National coal production surpassed 3,500,000,000 tons in 2011, was the No.1 big coal country in the world, accounted for the near half the of Gross World Product.How making good use of more relatively coal resources, reduce industrial production PetroChina Company Limited. interdependency, is one of the key issue that must resolve in China's energy utilization.
China is diesel oil consumption big country, shows that according to State Statistics Bureau's latest data the apparent consumption of Chinese diesel oil was 16,717 ten thousand tons in 2011, increased by 7.6% on year-on-year basis.Along with the fast development of relevant industries like industries such as farming, woods, fishing, electric power and communications and transportation, the diesel oil consumption raises year by year, and along with demand for energy is soaring day by day, oil price one tunnel is climbed and risen.Even a lot of provinces appearance in winter " diesel oil is waste " resource scarcity situation, it is imperative to seek coal-based substitute energy.
Compare with petrol motor, advantage such as oil motor has that compression ratio is big, thermo-efficiency is high, fuel economy is good, COx and hydro carbons quantity discharged are low obtains application more and more widely at automotive field.Because it is bigger to form the hydrocarbon molecule amount of diesel oil, the rate of combustion of diesel oil is not high enough when internal combustion engine, so the particulate pollutant of diesel emission is more, moreover the working temperature of oil motor is higher, and the formation of its NOx and discharging also are the factors of its development of restriction.
Cetane value (CN) is the important indicator of diesel combustion performance.Along with the minimizing day by day of petroleum resources, crude oil has the trend of heaviness.In recent years, along with the development of heavy oil deep processing, the output of cracked fuel oil increases considerably, and straight-run diesel oil output reduces, and diesel-fuel cetane number constantly descends.And each oil refining enterprise generally adopts secondary processing technology such as catalytic cracking to improve the yield of lightweight oil, causes diesel-fuel cetane number totally to descend.At present, the cetane value of China's catalytic cracking diesel oil is merely 20-25, can only use with the straight-run diesel oil allotment.But, because the output of straight-run diesel oil is limited, make the commercially available diesel cetane-number of China generally not reach requirement, the part diesel cetane-number is merely 40.And China's current standards " derv fuel oil " (GB19147-2009) requirement, CN is not less than 49 (S < 0.035%).Thereby need the combustionproperty of improving secondary processing diesel oil badly, improve cetane value.
Polyoxymethylene dimethyl ether (PODE), it is the common name of one type of material, its skeleton symbol can be CH
3O (CH
2O)
nCH
3, wherein n is the integer (general value is less than 10) more than or equal to 1, when the value of n is 1-4, can be used as diesel-dope, the content in diesel oil can reach 30% (v/v).PODE has higher oxygen level (42-51% does not wait) and cetane value (more than 30), can improve the combustion position of diesel oil in mover, improves thermo-efficiency, reduces the discharging of solid pollutant, COx and NOx.It is reported, add the CH of 5-30%
3OCH
2OCH
3Can reduce NOx discharging 7-10%, PM reduces 5-35%.Thereby be considered to a kind of clean diesel fuel additive that has application prospect.
Background context data in the prior art:
1, patent 201010605489.7 discloses a kind of preparation method of clean diesel, with modified methanol, and naphthenic acid; Oleic acid, N are main additive, carry out obtaining clean diesel behind the thorough mixing; This kind diesel oil can effectively reduce tail gas pollution, but modified methanol need obtain through a series of condensations and complex reaction, prepares loaded down with trivial details; Oil product is prone to absorb airborne moisture in addition, thereby influences diesel oil stability, is not easy to preserve and transportation.
2, patent 200910112404.9 discloses a kind of high-cleanness diesel oil, is to be main diesel oil surrogate through water and Fatty Alcohol(C12-C14 and C12-C18) monobasic alcohol ester, adds thanomin, and emulsifying agents such as butylamine carry out after the high-speed stirring obtaining through secondary filter the diesel oil emulsification of clear.This diesel oil has solved the difference of conventional emulsification diesel oil and ordinary diesel oil outward appearance, but complex operation is unfavorable for technology production, and yield is limited.The experiment of test run simultaneously shows that dynamic performance still slightly is worse than ordinary diesel oil.
Summary of the invention
To be solved by this invention be in the past the conventional diesel cetane value low, in mover insufficient, the solid pollutant of burning, CO
xAnd NO
xDischarge more problem.The present invention is through being main additive with polyoxymethylene dimethyl ether, methylal or the mixture of the two; Improve the efficiency of combustion of combined diesel oil, reduced uncombined carbon and discharge of harmful gases, improve the quality of combined diesel oil; Reduce cost, developed the new way from the coal to the oil product.
For solving the problems of the technologies described above; The present invention realizes through following technical scheme: by mass ratio diesel oil alternative compositions (5-30%), additive (5-30%), three kinds of materials of diesel oil (40-90%) are mixed at normal temperatures; Left standstill then 8-10 hour; Treat liquid clarification back tinning, be novel cleaning combined diesel oil.
In the such scheme; The diesel oil alternative compositions is the mixture of polyoxymethylene dimethyl ether, methylal or the two arbitrary proportion, and additive is that in lipid acid, soap, alkenyl succinimide, amyl nitrate, ethyl nitrate, 2-ethylhexyl nitric ether, polyethylene vinyl acetate ester, ethylene-acrylic acid isobutylate, butanols, isopropylcarbinol, primary isoamyl alcohol, the hexadecyl improving agent one or more mix.
The present invention adopts polyoxymethylene dimethyl ether as a kind of main alternative compositions of diesel oil, can improve the oxygen level and the cetane value of diesel oil, has developed an effective way from the coal-based methanol to the oil product.The advantage of this novel cleaning combined diesel oil has been to improve the combustion heat energy utilization ratio of combined diesel oil; Reduce uncombined carbon and discharge of harmful gases, reduced environmental pollution, improved the stability of combined diesel oil; Improve the quality of combined diesel oil simultaneously, and realized the reduction of cost.The present invention has high social and economic benefit, and practicality is very strong.All machinery and equipment that need to make fuel with diesel oil all can use.
In order further to confirm the safety of the clean diesel quality index of correlation that the present invention is prepared, entrust national petroleum and petrochemical industry product quality supervision and inspection centers (Guangdong) to detect the diesel oil that this invention is produced, the result is as shown in table 1.
Table 1 polyoxymethylene dimethyl ether diesel quality detected result
Embodiment
Embodiment 1
In 2800 rev/mins stirred autoclave, add 15 gram polyoxymethylene dimethyl ethers, 100 gram diesel oil and 1 gram lipid acid, 2 gram ethyl nitrates, 5 gram polyethylene vinyl acetate esters, 2 gram butanols and 0.3 gram isooctyl ester nitrate.At normal temperatures above-mentioned substance is mixed, 2800 rev/mins of stirrings were left standstill 8-10 hour after 30 minutes, treated that the liquid clarification gets final product tinning.
Embodiment 2
In 2800 rev/mins stirred autoclave, add 30 gram polyoxymethylene dimethyl ethers, 80 gram diesel oil and 2 gram lipid acid, 5 gram ethyl nitrates, 3 gram polyethylene vinyl acetate esters, 1 gram primary isoamyl alcohol and 0.5 gram isooctyl ester nitrate.At normal temperatures above-mentioned substance is mixed, 2800 rev/mins of stirrings were left standstill 8-10 hour after 30 minutes, treated that the liquid clarification gets final product tinning.
Embodiment 3
In 2800 rev/mins stirred autoclave, add 15 gram polyoxymethylene dimethyl ethers, 5 gram methylals, 80 gram diesel oil and 1 gram alkenyl succinimide, 2 gram amyl nitrates, 3 gram ethylene-acrylic acid isobutylates, 1 gram isopropylcarbinol and 0.1 gram isooctyl ester nitrate.At normal temperatures above-mentioned substance is mixed, 2800 rev/mins of stirrings were left standstill 8-10 hour then, treated that the liquid clarification gets final product tinning.
Embodiment 4
In 2800 rev/mins stirred autoclave, add 20 gram methylals, 100 gram diesel oil and 3 gram soaps, 1.5 gram 2-ethylhexyl nitric ethers, 5 gram ethylene-acrylic acid isobutylates, 0.5 gram amylalcohol and 0.3 gram isooctyl ester nitrate.At normal temperatures above-mentioned substance is mixed, 2800 rev/mins of stirrings were left standstill 8-10 hour after 30 minutes, treated that the liquid clarification gets final product tinning.
Embodiment 5
In 3000 rev/mins stirred autoclave, add 10 gram polyoxymethylene dimethyl ethers, 15 gram methylals, 80 gram diesel oil and 1 gram lipid acid, 4 gram ethyl nitrates, 3 gram polyethylene vinyl acetate esters, 3 gram butanols and 0.1 gram isooctyl ester nitrate.At normal temperatures above-mentioned substance is mixed, 3000 rev/mins of stirrings were left standstill 8-10 hour after 30 minutes, treated that the liquid clarification gets final product tinning.
Above embodiment only is used to explain preferred implementation of the present invention; But the present invention is not limited to above-mentioned embodiment; In the ken that said field those of ordinary skill is possessed; Any modification of being done within spirit of the present invention and the principle, be equal to and substitute and improvement etc., it all should be encompassed within the technical scheme scope that the present invention asks for protection.
When above-mentioned sample amplification prepared product uses on diesel car, dynamic property and acceleration characteristics and conventional diesel oil indifference, efficiency of combustion obviously improves, and has reduced by about 50% Vehicular exhaust pollution, has significantly increased the lubricity of diesel oil simultaneously.
Claims (3)
1. the preparation method of a novel cleaning combined diesel oil; It is characterized in that with mass ratio be the diesel oil alternative compositions of 5-30%, the additive of 5-30%, the diesel oil of 40-90%; Three kinds of materials mix at normal temperatures; Left standstill then 8-10 hour, and treated liquid clarification back tinning, be novel cleaning combined diesel oil.
2. the preparation method of novel cleaning combined diesel oil according to claim 1 is characterized in that: described diesel oil alternative compositions is the mixture of polyoxymethylene dimethyl ether, methylal or the two arbitrary proportion.
3. the preparation method of novel cleaning combined diesel oil according to claim 1 is characterized in that: described additive is one or more in lipid acid, soap, alkenyl succinimide, amyl nitrate, ethyl nitrate, 2-ethylhexyl nitric ether, polyethylene vinyl acetate ester, ethylene-acrylic acid isobutylate, butanols, isopropylcarbinol, primary isoamyl alcohol, the isooctyl ester nitrate.
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| CN201210143631XA CN102660337A (en) | 2012-05-10 | 2012-05-10 | Method for preparing novel clean synthetic diesel oil |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614170A (en) * | 2013-11-25 | 2014-03-05 | 济南开发区星火科学技术研究院 | Preparation method of oil-saving environment-friendly agent |
| CN103666598A (en) * | 2013-12-21 | 2014-03-26 | 山西华顿实业有限公司 | High cleanness diesel component |
| CN103666594A (en) * | 2013-12-30 | 2014-03-26 | 北京清研利华石油化学技术有限公司 | Methanol diesel and preparation method of methanol diesel |
| CN103897761A (en) * | 2014-04-11 | 2014-07-02 | 盐城蓝色星球树脂材料有限公司 | High-efficiency fuel gas |
| CN104312639A (en) * | 2014-10-17 | 2015-01-28 | 上海千茂化工科技有限公司 | Oxygenated compound for polyether clean diesel and preparation method of oxygenated compound |
| CN104449898A (en) * | 2014-11-25 | 2015-03-25 | 四川省大气投资有限公司 | Ether-mixed burning fuel for vehicle and preparation method thereof |
| CN104449897A (en) * | 2014-11-25 | 2015-03-25 | 四川省大气投资有限公司 | Ether-mixed burning fuel for vehicle and preparation method thereof |
| CN104962329A (en) * | 2015-04-23 | 2015-10-07 | 吴阳 | Reusable methyl low carbon clean diesel oil additive |
| CN105779035A (en) * | 2014-12-22 | 2016-07-20 | 刘明波 | Clean and environment-friendly diesel oil |
| CN106536684A (en) * | 2014-01-29 | 2017-03-22 | 图利诺研究及伙伴有限公司 | Formulation of a new diesel fuel suitable for diesel engines |
| CN107513441A (en) * | 2017-09-27 | 2017-12-26 | 天津大学 | A kind of fuel combination suitable for diesel engine |
| CN109679701A (en) * | 2019-01-31 | 2019-04-26 | 河北金景达新能源科技股份有限公司 | A kind of clean fuel for vehicle additive and preparation method thereof |
| CN112280600A (en) * | 2020-09-04 | 2021-01-29 | 云南览月能源有限公司 | Oxygen-enriched clean diesel fuel |
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| EP1070755A1 (en) * | 1999-07-22 | 2001-01-24 | SNAMPROGETTI S.p.A. | Liquid mixture consisting of diesel gas oils and oxygenated compounds |
| WO2010139994A1 (en) * | 2009-06-01 | 2010-12-09 | Innospec Limited | Improvements in efficiency |
| CN102399599A (en) * | 2010-09-16 | 2012-04-04 | 陈若歆 | Methanol diesel oil manufacturing mode |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1070755A1 (en) * | 1999-07-22 | 2001-01-24 | SNAMPROGETTI S.p.A. | Liquid mixture consisting of diesel gas oils and oxygenated compounds |
| WO2010139994A1 (en) * | 2009-06-01 | 2010-12-09 | Innospec Limited | Improvements in efficiency |
| CN102399599A (en) * | 2010-09-16 | 2012-04-04 | 陈若歆 | Methanol diesel oil manufacturing mode |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614170B (en) * | 2013-11-25 | 2015-09-23 | 济南开发区星火科学技术研究院 | A kind of preparation method of fuel-saving environmental protection agent |
| CN103614170A (en) * | 2013-11-25 | 2014-03-05 | 济南开发区星火科学技术研究院 | Preparation method of oil-saving environment-friendly agent |
| CN103666598A (en) * | 2013-12-21 | 2014-03-26 | 山西华顿实业有限公司 | High cleanness diesel component |
| CN103666594A (en) * | 2013-12-30 | 2014-03-26 | 北京清研利华石油化学技术有限公司 | Methanol diesel and preparation method of methanol diesel |
| CN103666594B (en) * | 2013-12-30 | 2015-07-08 | 北京清研利华石油化学技术有限公司 | Methanol diesel and preparation method of methanol diesel |
| CN106536684B (en) * | 2014-01-29 | 2019-04-05 | 图利诺研究及伙伴有限公司 | It is suitble to the fresh fuel formula of diesel engine |
| CN106536684A (en) * | 2014-01-29 | 2017-03-22 | 图利诺研究及伙伴有限公司 | Formulation of a new diesel fuel suitable for diesel engines |
| CN103897761A (en) * | 2014-04-11 | 2014-07-02 | 盐城蓝色星球树脂材料有限公司 | High-efficiency fuel gas |
| CN104312639A (en) * | 2014-10-17 | 2015-01-28 | 上海千茂化工科技有限公司 | Oxygenated compound for polyether clean diesel and preparation method of oxygenated compound |
| CN104312639B (en) * | 2014-10-17 | 2015-12-02 | 上海千茂化工科技有限公司 | A kind of polyether class clean diesel oxygenatedchemicals and preparation method thereof |
| CN104449897B (en) * | 2014-11-25 | 2016-03-16 | 四川省大气投资有限公司 | A kind of automobile-used ethers mixes fuel burning and preparation method thereof |
| CN104449897A (en) * | 2014-11-25 | 2015-03-25 | 四川省大气投资有限公司 | Ether-mixed burning fuel for vehicle and preparation method thereof |
| CN104449898A (en) * | 2014-11-25 | 2015-03-25 | 四川省大气投资有限公司 | Ether-mixed burning fuel for vehicle and preparation method thereof |
| CN105779035A (en) * | 2014-12-22 | 2016-07-20 | 刘明波 | Clean and environment-friendly diesel oil |
| CN104962329A (en) * | 2015-04-23 | 2015-10-07 | 吴阳 | Reusable methyl low carbon clean diesel oil additive |
| CN107513441A (en) * | 2017-09-27 | 2017-12-26 | 天津大学 | A kind of fuel combination suitable for diesel engine |
| CN109679701A (en) * | 2019-01-31 | 2019-04-26 | 河北金景达新能源科技股份有限公司 | A kind of clean fuel for vehicle additive and preparation method thereof |
| CN112280600A (en) * | 2020-09-04 | 2021-01-29 | 云南览月能源有限公司 | Oxygen-enriched clean diesel fuel |
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Application publication date: 20120912 |