CN1108357C - Dimethyl ether blending and burning technology - Google Patents
Dimethyl ether blending and burning technology Download PDFInfo
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- CN1108357C CN1108357C CN00103920A CN00103920A CN1108357C CN 1108357 C CN1108357 C CN 1108357C CN 00103920 A CN00103920 A CN 00103920A CN 00103920 A CN00103920 A CN 00103920A CN 1108357 C CN1108357 C CN 1108357C
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- fuel
- diesel oil
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Abstract
The present invention relates to a dimethyl ether blending and burning technique which belongs to ranges of a technique for the application and the development of an energy source and a heat energy power and fuel technique. The present invention is mainly used for the update and the replacement of diesel engine fuel and solves the problems of the application and the development of dimethyl enther, the shortage of the energy source and the gas exhaust of a diesel engine. The present invention is characterized in that the present invention is a technical scheme that additives are added in the dimethyl enther and are used as the substitute fuel of the diesel engine, namely a technique that the dimethyl enther and diesel oil burn by blending in certain proportion. The technique solves the problems that the viscosity of the dimethyl enther is low, leakage is serious, and matched parts of an oil supply system are abraded, so the dimethyl enther is used as the fuel to reach the degree of practical application, and has very high application value.
Description
Technical field
Dimethyl ether blending and burning technology of the present invention belongs to the category of energy source use development technique, relates to heat energy, power engineering and automotive fuel technology, specifically is the blending and burning technology that a kind of diesel motor substitutes clean fuel.
Background technology
As everyone knows, petroleum products burning noxious emission causes urban atmospheric pollution serious, world petroleum resource shortage day by day in addition, and various countries strive to find the clean alternative fuel of various compliance with environmental protection requirements just one after another.As compressed natural gas (CNG), natural gas liquids (LNG), liquefied petroleum gas (LPG) (LPG) and Aalcohols fuel etc.Thereby solve the fuel problem that oil engine is faced.In recent years, can from coal, coal-seam gas, Sweet natural gas, plant and domestic refuse, produce the very big concern that fuel dimethyl ether (DME) has caused people.Because dme cetane value height, anti-knocking property are good, has good characteristic of autoigniting, cold-start performance is good, noise is low.No C-C chain molecular structure in its molecular formula, the weight percent of oxygen is higher, can fundamentally solve smokeless combustion and reduce the problem that automobile harmful gas discharges, it also is the extremely promising clean fuel that substitutes on the diesel motor, but, because dme is on physico-chemical property and the difference of diesel oil, make the direct dimethyl ether fuel of diesel engine have problems, oil supply system is seriously revealed, fuel delivery does not reach requirement, influence engine power performance and economy, make fuel feed pump plunger idol part in the prime the fuel system simultaneously, delivery valve matching parts and the heavy wear of oil thrower idol part, for addressing the above problem, people are researching and developing dimethyl ether blending and burning technology always for many years, as mix the additive castor-oil plant wet goods of lubricated oils in dme, though alleviate the wearing and tearing of oil supply system idol part, but the increase of the obnoxious flavour that gives off after causing these additives to burn, so the application that dme acts as a fuel on diesel engine remains a still unsolved difficult problem.
Summary of the invention
A kind of dimethyl ether blending and burning technology, it is characterized in that in dme, adding in proportion the fuel use of diesel oil mixing as diesel engine, the ratio of burning is mixed in its mixing, be by weight percentage: dme (45%-95%), being selected from No. 10 a kind of diesel oil (5%-55%) in-No. 30 diesel oil injects respectively in the container, two kinds of liquid fuels are mixed in container fully, mixing time was controlled at 10～30 minutes, then blended fuel was directly replaced the pure diesel oil fuel of diesel motor.
The proportional range that above-mentioned dme and diesel oil are mixed burning also can be: dme (60%～85%), diesel oil (15%～40%).Dimethyl ether blending and burning technology of the present invention, its advantage is:
1, burning is mixed in the mixing of dme and diesel oil, can form good mixing gas, and making institute mix diesel oil can burn more fully, therefore can obtain good discharge index, make discharge index far below specified standards, so, important practical sense is arranged to alleviating environmental pollution.
2, because dme calorific value and density are lower, its fuel delivery is about 1.8 times of diesel oil, with dme with after diesel oil mixes, diesel oil is also participated in burning, and the diesel oil calorific value is higher, is beneficial to the recovery of diesel powered, suitable adjustment oil supply system, propellant combination can directly replace diesel oil fuel, engine power performance with use pure diesel oil fuel dynamic property and quite or slightly improve.
3, it is low to have solved dme viscosity, and insufficient lubrication is revealed serious, and oil supply system idol part is the difficult problem of wearing and tearing easily, and engine can steady in a long-term turn round.
4, the art of this patent all can used on the engine of all kinds of combustion diesel fuels and on the equipment of other combustion diesel fuel.
Embodiment
Embodiment 1:
Getting 70% liquid dimethyl ether at first is injected in the container, then choosing No. 10 diesel oil that 30% physical and chemical performance meets national standard (GB252-81) is injected in the same container, make two kinds of fuel thorough mixing, its mixing time is 15 minutes, be connected with fuel system for diesel engine with the delivery valve interface of oil pipe container, open the pressurized vessel delivery valve, dme and diesel oil blended fuel are entered in the injection pump low-pressure cavity can start diesel motor.The evidence engine power uses pure diesel oil and improves 6% than originally, specific fuel oil consumption uses pure diesel oil and reduces 5% than originally, and smoke intensity has also reduced 80%-90%, and other noxious emission has reduced 30%～60%.
Embodiment 2:
Get liquid dimethyl ether 45%, choose-No. 10 diesel oil that 55% physical and chemical performance meets national standard (GB252-81) again and be injected in the same container, can carry out according to the method for embodiment 1.
Embodiment 3:
Get liquid dimethyl ether 95%, choose-No. 30 diesel oil that 5% physical and chemical performance meets national standard (GB252-81) again and be injected in the same container, can carry out according to the method for embodiment 1.
Claims (2)
1, a kind of dimethyl ether blending and burning technology, it is characterized in that in dme, adding in proportion the fuel use of diesel oil mixing as diesel engine, the ratio of burning is mixed in its mixing, be by weight percentage: dme (45%～95%), being selected from No. 10 a kind of diesel oil (5%～55%) in No. 30 diesel oil injects respectively in the container, two kinds of liquid fuels are mixed in container fully, mixing time was controlled at 10～30 minutes, then blended fuel was directly replaced the pure diesel oil fuel of diesel motor.
2, according to the described a kind of dimethyl ether blending and burning technology of claim 1, it is characterized in that the proportional range that described dme and diesel oil are mixed burning also can be: dme (60%～85%), diesel oil (15%～40%).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00103920A CN1108357C (en) | 2000-03-01 | 2000-03-01 | Dimethyl ether blending and burning technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00103920A CN1108357C (en) | 2000-03-01 | 2000-03-01 | Dimethyl ether blending and burning technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1272525A CN1272525A (en) | 2000-11-08 |
| CN1108357C true CN1108357C (en) | 2003-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00103920A Expired - Fee Related CN1108357C (en) | 2000-03-01 | 2000-03-01 | Dimethyl ether blending and burning technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108357C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463275B (en) * | 2009-01-13 | 2012-04-11 | 太原理工大学 | Preparation of compression ignition engine mixed fuel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156475A (en) * | 1994-08-12 | 1997-08-06 | 阿莫科公司 | Diesel fuel composition |
| CN1216317A (en) * | 1998-09-28 | 1999-05-12 | 王国良 | Efficient energy-saving additive and the preparation of several kinds of composite fuel thereof |
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2000
- 2000-03-01 CN CN00103920A patent/CN1108357C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156475A (en) * | 1994-08-12 | 1997-08-06 | 阿莫科公司 | Diesel fuel composition |
| CN1216317A (en) * | 1998-09-28 | 1999-05-12 | 王国良 | Efficient energy-saving additive and the preparation of several kinds of composite fuel thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1272525A (en) | 2000-11-08 |
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