CN1041778A - Combined diesel oil - Google Patents
Combined diesel oil Download PDFInfo
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- CN1041778A CN1041778A CN 88109733 CN88109733A CN1041778A CN 1041778 A CN1041778 A CN 1041778A CN 88109733 CN88109733 CN 88109733 CN 88109733 A CN88109733 A CN 88109733A CN 1041778 A CN1041778 A CN 1041778A
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- diesel oil
- coal tar
- cetane value
- tar
- combined diesel
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Abstract
The present invention is a kind of combined diesel oil, is main component with the smart tar of 100-265 ℃ of cuts obtaining from coal tar fractional distillation, and the cetane value that cooperates suitable common kerosene again and can improve cetane value is regulated material and formed.
Description
The present invention is a kind of diesel oil made from artificial synthesis.
Diesel oil is a kind of broad-spectrum oil fuel, mostly from petroleum crude oil.Originate in order to enlarge it, and make the product in petrochemical complex or other field or byproduct can access comprehensive utilization, some diesel oil or similar oil fuel with artificial synthesis production preparation are also arranged at present.For example European patent EP 140365, U.S. Pat 4080397, US 4413064 etc. are related all is with the synthetic gas that mainly contains carbon monoxide and hydrogen oil fuel and method such as synthetic diesel oil under catalyst action.Chinese patent CN 87104075A has introduced a kind of Medium diesel oil based on low-carbon alcohol.As the coal tar of coke by-products, be a kind of thick liquid that coal is produced when high temperature carbonization.Because its complicated component, can obtain comprehensive utilization for making it, from coal tar, separated having obtained increasing valuable chemical products at present, be used for combined diesel oil and had not yet to see report but from coal tar, refine effective constituent.
The purpose of this invention is to provide a kind of extract with coal tar is the combined diesel oil of main component.
Combined diesel oil of the present invention is that to extract the boiling range obtain by fractionation in coal tar be that 100-265 ℃ smart tar is main component, suitably add kerosene again and regulate material with the cetane value that can improve diesel cetane-number, its composition (weight %) is: smart tar 54-90, kerosene 9-45, cetane value is regulated material 0-5.Because coal tar mainly from the byproduct of coking, therefore wherein contains a certain amount of water interior, before coal tar being carried out the fractionation extraction, should separate earlier and remove most moisture.Secondly,, in the fractionation leaching process, sneak into cut and enter the consequence that diesel oil causes damage engine cylinder-body in the use, must extract previous crops in fractionation and remove acid treatment for preventing them owing to contain multiple acidic substance interior in the coal tar.The method of handling is to use in the alkaline matter and the acid in the coal tar, the method that can take the liquid base washing or handle with solid alkali.Adopt the former to handle, the cycle is short, the efficient height, but operation is complicated slightly, and can bring water into again, preferably remake primary dewatering after the processing and handle; Adopt the latter to handle, simple to operate, and can not bring too much moisture again into, but because the contact area of alkali and coal tar is little, the treatment time is long, and efficient is not high, so the two cuts both ways.
After rough coal tar do dehydration depickling processing, can carry out fractionation and extract, the cut of collecting 100-265 ℃ of boiling range scope is the alleged smart tar ingredients of the present invention.By traditional classification of habits, the cut of coal tar distillate mid-boiling point＜170 ℃ is a strippings, mainly contains substituted benzenes such as benzene and toluene, dimethylbenzene; 170-230 ℃ cut is middle oily part, is mainly substituted benzene and naphthalene, phenol; 230-270 ℃ cut is the heavy oil part, mainly forms (National Defense Industry Press: " practical chemistry handbook, 1986 editions) by naphthalene system.Because coal tar of the present invention has been done the depickling processing before fractionation is extracted, acidic components such as phenols have been removed substantially, therefore smart tarry cut is one-tenth such as neutral benzene, substituted benzene and a small amount of naphthalene class and is grouped into, and this is that combined diesel oil of the present invention produces power actuated main component.Adding an amount of common kerosene composition in combined diesel oil of the present invention, as initiator, is in order to adjust lighting and combustionproperty of combined diesel oil.Because cetane value is an important performance indexes of diesel oil, general requirement reaches 43-55.Use in order to adapt on dissimilar diesel engine, can in combined diesel oil of the present invention, suitably add some normally used compositions that can improve cetane value, to regulate the cetane value index, the material that can improve cetane value commonly used is a lot, as nitric acid or nitrous acid esters such as amyl nitrate, n-octyl nitrate, nitric acid ester in the ninth of the ten Heavenly Stems, Isopentyl nitrites; Nitro alkanes such as nitrobutane, nitro octane, 2-nitropropane; Peroxides such as butane superoxide, ditertiary butyl peroxide, heptane superoxide; And class materials such as acetaldehyde, positive dibutyl ether, nitric acid butyric acid.Can from these materials, choose any one kind of them as required or several.Even but not adding specific examples of such components, the actual driving result of use of using combined diesel oil of the present invention to carry out proves, also can reach the performance requriements of common No. 0 diesel oil substantially.The result of quality examination shows that multinomial performance indexs such as the kinematic viscosity of combined diesel oil of the present invention, ash content, mechanical impurity, condensation point, flash-point, water soluble acid or alkali, corrodibility and boiling range scope all meet the regulation of CNS.Because the main component of combined diesel oil of the present invention is with low cost from coal tar, therefore except the new way of having opened up a combined diesel oil, its economic benefit also is very considerable, and wide actual use prospect is arranged.
Below introduce specific embodiments of the invention.
To do to remove water treatment earlier from the coal tar of coke by-products, handle coal tar deacidification in 24 hours with the unslaked lime of coal tar weight 18-20% then, stir at any time in the treating processes, to improve the deacidification effect.Coal tar after the deacidification should show pH neutrality.This coal tar is carried out fractionation, and the cut of collecting in the 100-265 ℃ of scope is standby as smart tar.Used kerosene is common illuminating kerosene, and cetane value is regulated material and selected for use in the material of aforementioned improved cetane value commonly used.
Prescription one: smart tar 61%(weight %, later on together), kerosene 39%.
Prescription two: smart tar 89%, kerosene 10%, amyl nitrate 1%.
Each component in the prescription is mixed the back stir more than 15 minutes, it is mixed fully, can use behind the conventional filtration.
Claims (1)
1, a kind of combined diesel oil is characterized in that by the smart tar from the coal tar fractional distillation gained, and kerosene and the cetane value adjusting material composition that can improve cetane value, and its composition (weight %) is
Smart tar (b.p.100-265 ℃) 54-90
Kerosene 9-45
Cetane value is regulated material 0-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109733 CN1041778A (en) | 1988-10-07 | 1988-10-07 | Combined diesel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109733 CN1041778A (en) | 1988-10-07 | 1988-10-07 | Combined diesel oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1041778A true CN1041778A (en) | 1990-05-02 |
Family
ID=4835452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88109733 Pending CN1041778A (en) | 1988-10-07 | 1988-10-07 | Combined diesel oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041778A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760256B (en) * | 2009-10-27 | 2012-10-24 | 济南开发区星火科学技术研究院 | Blended diesel taking coal tar as main raw material |
| CN106893613A (en) * | 2015-12-17 | 2017-06-27 | 株洲中醇化新能源科技有限公司 | A kind of combined diesel oil |
-
1988
- 1988-10-07 CN CN 88109733 patent/CN1041778A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760256B (en) * | 2009-10-27 | 2012-10-24 | 济南开发区星火科学技术研究院 | Blended diesel taking coal tar as main raw material |
| CN106893613A (en) * | 2015-12-17 | 2017-06-27 | 株洲中醇化新能源科技有限公司 | A kind of combined diesel oil |
| CN106893613B (en) * | 2015-12-17 | 2020-01-10 | 株洲中醇化新能源科技有限公司 | Synthetic diesel oil |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |