CN1084784C - Ether-hydrocarbon liquid compound fuel - Google Patents
Ether-hydrocarbon liquid compound fuel Download PDFInfo
- Publication number
- CN1084784C CN1084784C CN 99115710 CN99115710A CN1084784C CN 1084784 C CN1084784 C CN 1084784C CN 99115710 CN99115710 CN 99115710 CN 99115710 A CN99115710 A CN 99115710A CN 1084784 C CN1084784 C CN 1084784C
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- China
- Prior art keywords
- fuel
- dme
- ether
- pentane
- liquid compound
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Abstract
The present invention relates to ether and hydrocarbon liquid compound fuel prepared from dimethyl ether, pentane fuel and auxiliary fuel (A), wherein the fuel (A) is liquefied petroleum gas or methanol. The fuel comprises the components with the following proportion: 20 to 40% of dimethyl ether, 50 to 70% of pentane fuel and 0 to 20% of liquefied petroleum gas, or 30 to 40% of dimethyl ether, 50 to 70% of pentane fuel and 0 to 10% of methanol. The compound fuel has the advantages of high heat value, little pollution, safety, sanitation and low price. The prepared fuel is burnt by a special matching stove.
Description
The invention belongs to the carbonaceous fuel technical field, be specifically related to a kind of liquid compound fuel of mainly forming by pentane and dme material.
Domestic fuel commonly used at present has coal gas, natural gas, oil liquefied gas, coal gas and Sweet natural gas limited by the supply of equipment, pipeline, and oil liquefied gas is on the high side, and incomplete combustion, and has at the bottom of pollution, the normal black-cooking pot.Openly reported a kind of liquid compound fuel in the Chinese patent communique: it be with thick methyl alcohol for leading and be added with a spot of dme and carbon five because the boiling point of methyl alcohol is than higher, thus be difficult for gasification, in use, kitchen range difficult point fire; Methyl alcohol is poisonous in addition, and is toxic to human body when not having gasification or incomplete combustion, and stimulate eyes to shed tears; Methanol prices is used uneconomical than higher to the ordinary people.The dme liquefied gas of producing behind the methanol dehydration claims to know and is clean fuel, because the turn of the market (price height) of methanol feedstock directly affects the use range of dme liquefied gas as domestic fuel.Light-hydrocarbon fuel (the eleventh of the twelve Earthly Branches alkane) it is believed that it is that a kind of cost is low as domestic fuel, pollution-free, health, safety, the easy gasification ideal fuels of lighting, it is a kind of liquid fuel, and how liquid fuel is become that gaseous state burns is a difficult problem, the method of using has at present: the one, with micropump air is sent in the steel cylinder through the standpipe that inserts steel cylinder, light-hydrocarbon fuel utilizes the pump bubbling to form steam, and air mixture cuts down decompression for the kitchen range burning through the angle.The 2nd, with compressor lighter hydrocarbons (referring to pentane) liquid fuel is atomized, realize pipe-line transportation, the supply huge numbers of families.So simple lighter hydrocarbons (referring to pentane) liquid fuel uses equipment before using is had certain requirement, cost is than higher, and gasification or fogging degree are difficult for grasping in addition, and cumbersome.
The purpose of this invention is to provide a kind of ether-hydrocarbon liquid compound fuel of mainly forming, can also be added with a small amount of oil liquefied gas, to overcome the deficiency in each fuel in the prior art or its use by pentane and dme liquefied gas.
This purpose realizes with following technical proposal: this ether-hydrocarbon liquid compound fuel, to form by dme, pentane and attached combustion-supporting work stone fluid gasification thereof, and the per-cent of each component content is:
Dme: 20-40%
Pentane 50-70%
Oil liquefied gas 0-20%
The present invention mainly adopts the physico-chemical property of dme and the characteristic of the eleventh of the twelve Earthly Branches alkane, formulated ether-hydrocarbon liquid compound fuel, it is low to make it to have cost, pollute little, toxicity is low, safety, health, burning is not thoroughly stayed raffinate, and the combustion heat value advantages of higher.When fuel is used, do not use extraneous any apparatus to atomize.Determined because of the physics and chemistry special property of dme, its still not individual solvent, it also is an aerosol propellant, this boiling point is low, calorific value is high, low-cost hydrocarbon fuel pentane is combined with an amount of dme liquefied gas as synergistic effect so select for use, and resulting liquid compound fuel has the incomparable advantage of any liquid fuel.
Pentane comprises Skellysolve A, iso-pentane, neopentane, and they are colourless liquid and gas, positive the eleventh of the twelve Earthly Branches alkane (CH
3CH
2CH
2CH
2CH
3): proportion 0.6262 (20/4 °), 36.1 ℃ of boiling points, 129.7 ℃ of molten points, calorific value 12630Kcal/kg, its physicochemical property is water insoluble, be slightly soluble in ethanol, being dissolved in hydro carbons and ether, is that a kind of price is lower, calorific value is higher, and the major ingredient of low-boiling liquid fuel.And the iso-pentane boiling point is low, be difficult for to preserve, and is volatile in the higher or long-distance transport in temperature, so at the above uncomfortable ether hydrocarbon fuel composition that is used as of 20 degree.Neopentane itself is exactly a kind of gas.So the latter can not be as the main component of hydrocarbyl ether liquid compound fuel.
Dme is a kind of clean fuel, colorless and odorless, and inflammable gas has the character of alcohol ether, and toxicity is lower, and airborne safe level is 400ppm, and airborne limits of explosion is 3.4-27%; Its general physico-chemical property BP is-23.7 ℃, and MP is-138.5 ℃, d
4 200.661g/ml, emergent pressure 52.6atn, 127 ℃ of critical temperatures, combustion heat value 347.6Kcal/mol, flash-point-41.1 ℃ (closed loop), spontaneous ignition temperature is internationally recognized clean fuel for 350 ℃, it not only can make the fine chemistry industry aerosol propellant, also can develop other fuel, to reducing environmental pollution, purifying the human living space all has special meaning.
Be that the present invention has done test to the fused property of the pentane of dme below in triturating, experiment is to carry out in the transparent molten device of withstand voltage sealing, inject the eleventh of the twelve Earthly Branches alkane material by a certain percentage earlier with weighing method, and then inject the dme liquefied gas and observe its pressure change and the fusion character of the two.With purity 98%, vapour pressure 0.58mpa (20 ℃), boiling point is that-24 ℃ the dme and the journey of slipping are positive the eleventh of the twelve Earthly Branches alkane of 29-60 ℃, and test-results is as follows:
Heavy (gram) 270 240 210 180 150 120 of positive the eleventh of the twelve Earthly Branches alkane
Dme (gram) 30 60 90 120 150 180
Container pressure (mpa) 0.25 0.35 0.4 0.48 0.53 0.58
Fused phase 111111
Experimental results show that gas of dimethyl ether and pentane have well fused property under certain pressure, the mixture in the container is with the increase of gas of dimethyl ether inlet, and pressure raises, and is used so fuel is transported to cooking stove, and dme mainly contains the effect of a propelling agent.Combustion conditions test: fuel is packed into and is burnt with supporting burner in the pressure vessel, establishes its best proportioning (%):
| Pentane | 90 | 80 | 70 | 60 |
| Dme | 10 | 20 | 30 | 40 |
| Combustion conditions | Do not fire | It is bad to burn | Burn | Burn |
Test as can be known: get positive the eleventh of the twelve Earthly Branches alkane 60-70%, the ether-hydrocarbon liquid compound fuel of dme 30-40% scope preparation can satisfy envrionment temperature at 10-40 ℃, and the mixed vapour of fuel is pressed in the 0.13-0.29mpa scope and uses.
Because the fused property of dme and the eleventh of the twelve Earthly Branches alkane is subjected to the influence of envrionment temperature: if envrionment temperature is higher than more than 35 ℃ or use summer, because of the solubleness of dme in the eleventh of the twelve Earthly Branches alkane reduces, cause firing dme amount minimizing in the liquid like this, so during the kitchen range sparking, be difficult for lighting, in order to increase the dme composition in the liquid, can take to add the fused amount that the methyl alcohol material increases dme.So, when envrionment temperature is lower than 10 ℃ just during winter, use this liquid compound fuel, because of dme strengthens with temperature decline degree of fusing, cause the dme vapor pressure to descend, and reduced the effect of its propelling agent, in order to strengthen out steel cylinder internal pressure before the kitchen range, suitably increase a spot of oil liquefied gas, the proportioning of each fuel is in the needs when lighting to satisfy burner, its steel cylinder:
Dme 20-40%
The eleventh of the twelve Earthly Branches alkane 50-70%
Oil liquefied gas 0-20%
Below to ether-hydrocarbon liquid compound fuel and oil liquefied gas, the various indexs of dme liquefied gas and the comparison of parameter:
1, ether-hydrocarbon liquid compound fuel and dme liquefied gas, the combustion case of oil liquefied gas on corollary stove are done following comparison:
The relevant index of burner unifies table
2, the contrast of all domestic fuel performance index is as follows:
The relevant index of fuel unifies table
3, the comparison of the price of the present invention and other liquid fuel and calorific value (by dress 12kg in the steel cylinder):
| Price | Calorific value | |
| Oil liquefied gas | 37 yuan/12kg | 10800kcal/kg |
| The dme liquefied gas | 38.4 unit/12kg | 8700kcal/kg |
| Ether-hydrocarbon liquid fuel | 23.5 unit/12kg | 11380kcal/kg |
Process for preparation of the present invention and embodiment:
Embodiment one: (under the normal temps, can 12kg liquid compound fuel steel cylinder is an example)
The proportioning of each component is: dme 30%, and positive the eleventh of the twelve Earthly Branches alkane 70%, other is 0%, promptly dme is 3.6 kilograms, just the eleventh of the twelve Earthly Branches alkane is 8.4 kilograms.During can: with other liquefied gas injection mode is the same usually, pour into 8.4 kilograms in positive the eleventh of the twelve Earthly Branches alkane here earlier, and then the injection gas of dimethyl ether gets final product for 3.6 kilograms.
Embodiment two: (when envrionment temperature was hanged down, can 12kg compound fuel steel cylinder was an example)
The each component proportioning is: dme 20%, positive the eleventh of the twelve Earthly Branches alkane 60%, oil liquefied gas 20%, promptly dme is 2.4 kilograms, 7.2 kilograms in positive the eleventh of the twelve Earthly Branches alkane, 2.4 kilograms of oil liquefied gas.During can, pour into 7.2 kilograms in positive the eleventh of the twelve Earthly Branches alkane earlier, 2.4 kilograms of the dme of reinjecting, and then annotate oil liquefied gas and get final product for 2.4 kilograms.
The present invention is through the inspection department detected result: objectionable impuritiess such as carbon monoxide, carbonic acid gas, oxynitrides and formaldehyde all meet national residential district sanitary standard of air and resident's safe mass to the pollution level in room
Claims (1)
1, a kind of ether-hydrocarbon liquid compound fuel is characterized in that it is made up of dme, pentane and oil liquefied gas, and the contained per-cent of each component is:
Dme: 20-40%
Pentane 50-70%
Oil liquefied gas 0-20%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99115710 CN1084784C (en) | 1999-01-29 | 1999-01-29 | Ether-hydrocarbon liquid compound fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99115710 CN1084784C (en) | 1999-01-29 | 1999-01-29 | Ether-hydrocarbon liquid compound fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1227864A CN1227864A (en) | 1999-09-08 |
| CN1084784C true CN1084784C (en) | 2002-05-15 |
Family
ID=5278629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99115710 Expired - Fee Related CN1084784C (en) | 1999-01-29 | 1999-01-29 | Ether-hydrocarbon liquid compound fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1084784C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250450B (en) * | 2008-04-11 | 2010-10-13 | 庞英才 | High-energy liquid gas and preparation method thereof |
| CN101319157B (en) * | 2008-07-14 | 2011-09-14 | 北京金晋投资有限公司 | Environment friendly energy conservation fuel and preparation thereof |
| TWI583782B (en) * | 2013-04-22 | 2017-05-21 | 碧氫科技開發股份有限公司 | Low carbon liquid fuel composition |
-
1999
- 1999-01-29 CN CN 99115710 patent/CN1084784C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1227864A (en) | 1999-09-08 |
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