CN104449897B - A kind of automobile-used ethers mixes fuel burning and preparation method thereof - Google Patents
A kind of automobile-used ethers mixes fuel burning and preparation method thereof Download PDFInfo
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- CN104449897B CN104449897B CN201410679713.5A CN201410679713A CN104449897B CN 104449897 B CN104449897 B CN 104449897B CN 201410679713 A CN201410679713 A CN 201410679713A CN 104449897 B CN104449897 B CN 104449897B
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- 239000000446 fuel Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 150000002170 ethers Chemical class 0.000 title claims abstract description 22
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical group C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 15
- 230000002378 acidificating effect Effects 0.000 claims description 11
- 150000001768 cations Chemical class 0.000 claims description 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003729 cation exchange resin Substances 0.000 claims description 8
- 238000006277 sulfonation reaction Methods 0.000 claims description 8
- 239000000376 reactant Substances 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 6
- MYRTYDVEIRVNKP-UHFFFAOYSA-N divinylbenzene Substances C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 6
- 230000009257 reactivity Effects 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 239000003502 gasoline Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000002283 diesel fuel Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 150000002373 hemiacetals Chemical class 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention discloses a kind of automobile-used ethers and mix fuel burning, belong to clean fuel for vehicle field, it is polymethoxy dimethyl ether DMM that described automobile-used ethers mixes fuel burning
n, wherein, 1≤n≤6, described polymethoxy dimethyl ether DMM
nprepared by dme and trioxymethylene, preparation method reacts for dme, trioxymethylene and catalyst by proportion are put into reaction vessel, after trioxymethylene reacts completely, isolates unreacted dme and resultant DMM
1-2with DMM
3-6, the whole preparation process of the present invention is simpler, and greatly reduce preparation cost, catalyzer of the present invention is less for the corrodibility of equipment, and productive rate can reach more than 95%.
Description
Technical field
The present invention relates to clean fuel for vehicle field, particularly a kind of automobile-used ethers prepared by dme and trioxymethylene mixes fuel burning and preparation method thereof.
Background technology
Along with society and expanding economy, the recoverable amount of automobile is increasing; Meanwhile, the topsoil factor of ratio account in to(for) the pollution of air of emission from vehicles is increasing.In order to alleviate the atmospheric pollution day by day increased the weight of, clean fuel oil becomes the important directions of people's research.
In existing Study and appliance, except the improvement by refining of petroleum technique is with except the discharge of less Vehicular exhaust, another important direction adds to mix fuel burning in existing fuel oil, promotes automobile power retrieval fuel oil consumption on the one hand, can reduce exhaust emissions on the other hand.
Existing research shows, polymethoxy dimethyl ether (DMM
n), have with diesel oil core component alkane that [molecular formula is CH
3(CH
2)
ncH
3] closely similar molecular structure, polymethoxy dimethyl ether general structure is CH
3o (CH
2o)
ncH
3, according to the similar ultimate principle mixed, the mutual solubility of itself and diesel oil is good;
Meanwhile, DMM
nthere is higher oxygen level (42% ~ 49%) and higher cetane value (DMM
3 ~ 8cetane value all more than 78); Polymethoxy dimethyl ether (DMM
n) Sauerstoffatom be combined with singly-bound with carbon atom, in conjunction with can be higher, easily activation forms the molecule with oxidative function, mixes in burning process the difficulty overcoming burning anoxic and few oxygen, the engine combustion efficiency of Motor vehicles and heat utilization efficiency are increased at diesel oil.In the tail gas causing Motor vehicles to discharge, carbon monoxide, hydrocarbon polymer and soot decline, and are a kind of clean energies of energy-saving and emission-reduction;
So lot of documents reports DMM
n, wherein n>=3, especially DMM
3 ~ 8what be suitable as diesel oil mixes fuel burning, is that burning component mixed by the diesel oil that a class is excellent.
So far, have and multiplely prepare polymethoxy dimethyl ether (DMM
n) method be in the news (as US2008/0221368Al, US.Pat.No.6166266, US.PalNo.6160174, US.Pat.No.6265828Bl, CN.10199266.4, CN.10190967.1, CN10397887.3, CN.101110297908.X etc.).By polymethoxy dimethyl ether (DMM
n) molecular formula [CH
3o (CH
2o)
ncH
3] known, its building-up process is synthesized primarily of the compound (formaldehyde, trioxymethylene and paraformaldehyde etc.) of the paraformaldehyde of its interlude and the compound (methyl alcohol, dme and Methylal(dimethoxymethane) etc.) of sealing end.
There is following shortcoming in above method:
(1) above method is all mix the DMM of fuel burning with combined diesel oil
nfor the purpose of (n>=3), and all can produce a certain amount of DMM in reaction process
1and DMM
2, and DMM
1-2be not suitable as diesel oil because flash-point is low and mix fuel burning, need DMM
1and DMM
2again react after separation, to remove DMM
1and DMM
2, cause production process to extend, production efficiency is low;
(2) above method all has water byproduct to generate in process of production, the water polymethoxy dimethyl ether that easy decomposition has been synthesized under an acidic catalyst, forms unstable hemiacetal, adds the purification difficulty of polymethoxy dimethyl ether.
Summary of the invention
One of goal of the invention of the present invention, is to provide a kind of automobile-used ethers newly to mix fuel burning, to solve the problem.
The technical solution used in the present invention is such: a kind of automobile-used ethers mixes fuel burning, and it is polymethoxy dimethyl ether DMM that described automobile-used ethers mixes fuel burning
n, wherein, 1≤n≤6.
As preferred technical scheme, described polymethoxy dimethyl ether DMM
nprepared by dme and trioxymethylene.
As preferred technical scheme, described DMM
1-2with DMM
3-6ratio, count by weight, DMM
1-2: DMM
3-6=4:6 ~ 6:4.
As further preferred technical scheme, described DMM
1with DMM
2ratio, count by weight, DMM
1: DMM
2=8:2 ~ 9:1.
As further preferred technical scheme, described DMM
3, DMM
4, DMM
5with DMM
6ratio, count by weight, DMM
3: DMM
4: DMM
5: DMM
6=(4 ~ 5): (4 ~ 5): (2 ~ 3): (2 ~ 3).
Goal of the invention two of the present invention, is to provide a kind of above-mentioned automobile-used ethers to mix the preparation method of fuel burning.
The technical scheme adopted is: dme, trioxymethylene and catalyst by proportion are put into reaction vessel and reacts, after trioxymethylene reacts completely, isolate unreacted dme and resultant DMM
1-2with DMM
3-6.
After trioxymethylene reacts completely, remaining reactant is dme, is easier to be separated.
As preferred technical scheme: the additional proportion of described dme and trioxymethylene, is calculated in molar ratio as, dme: trioxymethylene=1:2 ~ 2:3.
Because dme in reaction process has enough amounts and trioxymethylene to react, namely dme is excessive, and trioxymethylene is at DMM
npolymerization degree n≤6 time almost complete reaction, be difficult to polymerization again and form the DMM of n > 6
n.
As preferred technical scheme: described dme and trioxymethylene take intermittent reaction, wherein temperature of reaction is 50 DEG C ~ 130 DEG C, and reaction pressure is 1.0MPa ~ 2.5MPa.
As preferred technical scheme: described dme and trioxymethylene take continuous mode to react, wherein temperature of reaction is 60 DEG C ~ 120 DEG C, and reaction pressure is 1.2MPa ~ 2.2MPa.
At this temperature and pressure, trioxymethylene comparatively early reacts with excessive dme, forms the DMM of n≤6
n.
As preferred technical scheme: the purity of described reactant dme is more than 99.0%.Avoid the generation causing hemiacetal in raw material containing water.
As preferred technical scheme: the purity of described reactant trioxymethylene is more than 99.5%.Avoid the generation causing hemiacetal in raw material containing water.
As preferred technical scheme: the add-on of described catalyzer, by weight, reactant: catalyzer=100:10 ~ 100:5.
As preferred technical scheme: described catalyzer is acidic cation catalyzer, described acidic cation catalyzer is the mixture of styrene type cation exchange resin and sulfonation fluoroolefin resin derivative, count by weight, styrene type cation exchange resin: sulfonation fluoroolefin resin derivative=5:5 ~ 4:6.This ratio catalytic efficiency is high.
As further preferred technical scheme: described acidic cation catalyzer uses high reactivity resin fixed-bed reactor, and its resin is one of following kind: (1) sulfonated tertafluorethylene and vinylbenzene, divinyl benzene copolymer (2) vinylformic acid, divinyl benzene copolymer (3) methacrylic acid, divinyl benzene copolymer.Resin is little to equipment corrosion, and catalytic efficiency is high.
The present invention adopts above-mentioned preparation method to prepare DMM
1-6, and separation obtains DMM
1and DMM
2, and the present inventor is by experimental results demonstrate: DMM
1and DMM
2fuel burning can be mixed as gasoline, greatly can improve the quality of gasoline, thus the DMM needing to be separated removal can be made full use of in prior art
1and DMM
2, especially DMM
1, thus simplify preparation process, and the added value of product is promoted greatly.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
(1) due to DMM
1-2one of target product of the present invention, because the present invention is DMM
1-2search out a kind of effective utilization ways, and by the control to reaction raw materials and condition, only generate DMM
1-6, reaction terminates only need to DMM
1-2and DMM
3-6be separated, so whole preparation process is simpler, greatly reduce preparation cost;
(2) the present invention selects dme and trioxymethylene as initial action raw material first, avoids the generation of water in reaction process, thus avoids the formation of unstable hemiacetal, greatly reduces the purification difficulty of polymethoxy dimethyl ether;
(3) the present invention can by the add-on of reaction raw materials, thus can select the wherein one in reaction raw materials dme and trioxymethylene to recycle, and reaction raw materials utilization ratio is high;
(3) catalyzer of the present invention catalytic activity in reaction of the present invention is strong, and catalytic efficiency is high, and the corrodibility for equipment is less;
(4) reaction yield of the present invention is high, and its productive rate can reach more than 95%.
Embodiment
The present invention is described in detail below.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1:
Intermittent reaction prepares DMM
1-6
Preparation process is:
High reactivity acidic cation catalyzer styrene type cation exchange resin 100 grams and sulfonation fluoroolefin resin derivative 100 grams (weight ratio is 5:5) are fixed on resin bed;
Be the trioxymethylene 2700g(mol ratio of the dme 920g and 99.6% of 99.2% by purity be 2:3) send into reactor;
The temperature of reactor is controlled between 50 DEG C and 110 DEG C;
By the pressure-controlling of reactor between 1.0MPa and 2.0MPa;
Stopped reaction after trioxymethylene complete reaction in detection reaction device;
Mixtures all in reactor are carried out board-like rectification under vacuum flash trapping stage, isolates polymethoxy dimethyl ether DMM respectively
n(1≤n≤6) and unreacted dme;
Then by DMM
n(1≤n≤6) mixture carries out board-like rectification under vacuum the second-order separation, isolates DMM respectively
1-2and DMM
3-6;
And then be separated DMM respectively
1-2and DMM
3-6, obtain DMM
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6;
Result: the DMM obtained
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6weight ratio be respectively:
15：5：25：25：15：15；
Productive rate is: 95.6%.
Embodiment 2:
Intermittent reaction prepares DMM
1-6
Preparation process is:
High reactivity acidic cation catalyzer styrene type cation exchange resin 72 grams and sulfonation fluoroolefin resin derivative 108 grams (weight ratio is 4:6) are fixed on resin bed;
Be the trioxymethylene 1800g(mol ratio of the dme 460g and 99.8% of 99.3% by purity be 1:2) send into reactor;
The temperature of reactor is controlled between 60 DEG C and 120 DEG C;
By the pressure-controlling of reactor between 1.0MPa and 2.0MPa;
Stopped reaction after trioxymethylene complete reaction in detection reaction device;
Mixtures all in reactor are carried out board-like rectification under vacuum flash trapping stage, isolates polymethoxy dimethyl ether DMM respectively
n(1≤n≤6) and unreacted dme;
Then by DMM
n(1≤n≤6) mixture carries out board-like rectification under vacuum the second-order separation, isolates DMM respectively
1-2and DMM
3-6;
And then be separated DMM respectively
1-2and DMM
3-6, obtain DMM
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6;
Result: the DMM obtained
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6weight ratio be respectively:
15：5：28：26：14：12；
Productive rate is: 95.1%.
Embodiment 3:
Continuous reaction prepares DMM
1-6
Preparation process is:
High reactivity acidic cation catalyzer styrene type cation exchange resin 250 grams and sulfonation fluoroolefin resin derivative 250 grams (weight ratio is 5:5) are fixed on resin bed;
Be the trioxymethylene 4500g(mol ratio of the dme 1380g and 99.7% of 99.2% by purity be 3:5) send into reactor;
The temperature of reactor is controlled between 60 DEG C and 110 DEG C;
By the pressure-controlling of reactor between 1.2MPa and 2.0MPa;
The reaction velocity of dme and trioxymethylene is 50h
-1~ 500h
-1;
Mixtures all in reactor are carried out board-like rectification under vacuum flash trapping stage, isolates polymethoxy dimethyl ether DMM respectively
n(1≤n≤6) and unreacted dme;
Then by DMM
n(1≤n≤6) mixture carries out board-like rectification under vacuum the second-order separation, isolates DMM respectively
1-2and DMM
3-6;
And then be separated DMM respectively
1-2and DMM
3-6, obtain DMM
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6;
Result: the DMM obtained
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6weight ratio be respectively: 12:8:25:25:15:15;
Productive rate is: 95.3%.
Embodiment 4:
Continuous reaction prepares DMM
1-6
Preparation process is:
High reactivity acidic cation catalyzer styrene type cation exchange resin 144 grams and sulfonation fluoroolefin resin derivative 216 grams (weight ratio is 4:6) are fixed on resin bed;
Be the trioxymethylene 2700g(mol ratio of the dme 920g and 99.7% of 99.2% by purity be 2:3) send into reactor;
The temperature of reactor is controlled between 70 DEG C and 120 DEG C;
By the pressure-controlling of reactor between 1.5MPa and 2.2MPa;
The reaction velocity of dme and trioxymethylene is 50h
-1~ 500h
-1;
Mixtures all in reactor are carried out board-like rectification under vacuum flash trapping stage, isolates polymethoxy dimethyl ether DMM respectively
n(1≤n≤6) and unreacted dme;
Then by DMM
n(1≤n≤6) mixture carries out board-like rectification under vacuum the second-order separation, isolates DMM respectively
1-2and DMM
3-6;
And then be separated DMM respectively
1-2and DMM
3-6, obtain DMM
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6;
Result: the DMM obtained
1, DMM
2, DMM
3, DMM
4, DMM
5with DMM
6weight ratio be respectively: 15:5:30:20:18:12;
Productive rate is: 95.7%.
Embodiment 5
The present embodiment is by DMM
1and DMM
2add in gasoline and mix fuel burning as gasoline, for improving the test of gasoline quality, its concrete testing sequence and result as follows:
Be that 8:2 adds in No. 93 gasoline by DMM1 and DMM2 according to weight ratio, addition is 20% of No. 93 gasoline-volume, the clean gasoline concocted by compounding process carries out platform experiment, dynamic performance is substantially suitable with No. 93 gasoline, emission behavior result is: pollutants of idle speed emission CO comparatively No. 93 gasoline reduces by 35.67%, pollutants of idle speed emission HC comparatively No. 93 gasoline reduces by 32.6%, NO
xall do not examine and see.
Claims (12)
1. automobile-used ethers mixes a fuel burning, it is characterized in that, it is polymethoxy dimethyl ether DMMn that described automobile-used ethers mixes fuel burning, wherein, and 1≤n≤6;
The ratio of described DMM1-2 and DMM3-6, counts by weight, DMM1-2:DMM3-6=4:6 ~ 6:4;
The ratio of described DMM1 and DMM2, counts by weight, DMM1:DMM2=8:2 ~ 9:1.
2. the automobile-used ethers of one according to claim 1 mixes fuel burning, it is characterized in that, described polymethoxy dimethyl ether DMMn is prepared by dme and trioxymethylene.
3. the automobile-used ethers of one according to claim 1 mixes fuel burning, it is characterized in that, the ratio of described DMM3, DMM4, DMM5 and DMM6, counts by weight, DMM3:DMM4:DMM5:DMM6=(2 ~ 3): (3 ~ 4): (2 ~ 3): (2 ~ 3).
4. the automobile-used ethers described in claims 1 to 3 any one mixes the preparation method of fuel burning, it is characterized in that, dme, trioxymethylene and catalyst by proportion are put into reaction vessel react, after trioxymethylene reacts completely, isolate unreacted dme and resultant DMM1-2 and DMM3-6.
5. automobile-used ethers according to claim 4 mixes the preparation method of fuel burning, it is characterized in that: the additional proportion of described dme and trioxymethylene, is calculated in molar ratio as, dme: trioxymethylene=1:2 ~ 2:3.
6. automobile-used ethers according to claim 4 mixes the preparation method of fuel burning, it is characterized in that: described dme and trioxymethylene take intermittent reaction, and wherein temperature of reaction is 50 DEG C ~ 130 DEG C, and reaction pressure is 1.0MPa ~ 2.5MPa.
7. automobile-used ethers according to claim 4 mixes the preparation method of fuel burning, it is characterized in that: described dme and trioxymethylene take continuous mode to react, and wherein temperature of reaction is 60 DEG C ~ 120 DEG C, and reaction pressure is 1.2MPa ~ 2.2MPa.
8. automobile-used ethers according to claim 4 mixes the preparation method of fuel burning, it is characterized in that: the purity of described reactant dme is more than 99.0%.
9. automobile-used ethers according to claim 4 mixes the preparation method of fuel burning, it is characterized in that: the purity of described reactant trioxymethylene is more than 99.5%.
10. automobile-used ethers according to claim 4 mixes the preparation method of fuel burning, it is characterized in that: the add-on of described catalyzer, by weight, and reactant: catalyzer=100:10 ~ 100:5.
11. automobile-used ethers according to claim 4 mix the preparation method of fuel burning, it is characterized in that: described catalyzer is acidic cation catalyzer, described acidic cation catalyzer is the mixture of styrene type cation exchange resin and sulfonation fluoroolefin resin derivative, by weight, styrene type cation exchange resin: sulfonation fluoroolefin resin derivative=5:5 ~ 4:6.
12. automobile-used ethers according to claim 11 mix the preparation method of fuel burning, it is characterized in that: described acidic cation catalyzer uses high reactivity resin fixed-bed reactor, and its resin is one of following kind: (1) sulfonated tertafluorethylene and vinylbenzene, divinyl benzene copolymer; (2) vinylformic acid, divinyl benzene copolymer; (3) methacrylic acid, divinyl benzene copolymer.
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