CN1775931A - Fuel combined combustion method by adding hydrogen peroxide combustion adjuvant - Google Patents
Fuel combined combustion method by adding hydrogen peroxide combustion adjuvant Download PDFInfo
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- CN1775931A CN1775931A CN 200510047932 CN200510047932A CN1775931A CN 1775931 A CN1775931 A CN 1775931A CN 200510047932 CN200510047932 CN 200510047932 CN 200510047932 A CN200510047932 A CN 200510047932A CN 1775931 A CN1775931 A CN 1775931A
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Abstract
The invention relates to a method to improve the burning efficiency of oil adding with oil additive assistant agent. The feature is spraying hydrogen peroxide solution into the burning room after atomized. It could improve the burning efficiency of oil and decrease the release of harmful gas.
Description
Technical field
This invention belongs to the energy-saving fuel technical field, is that a kind of fuel oil adds the method that ignition dope improves oil inflame efficient specifically.
Background technology
Fast development along with Chinese national economy, produced great demand for the energy, the particularly rapid raising of domestic automobile recoverable amount, the demand of vehicle fuel is explosive growing trend especially, thereby makes China enter the ranks of world energy consumption big country fast.Meanwhile, energy consumption has also brought the rapid increase of contaminants associated quantity discharged, causes the atmospheric environment severe exacerbation of each big and medium-sized cities and periphery thereof.Therefore, how actively to widen fuel substitute, more economical more cleaning is used petroleum resources, and even is to be related to the severe problem that can China's human society sustainable harmonious development.
Fuel oil adds ignition dope can improve efficiency of combustion, saves fuel oil and reduces pollutant emission, and this is at home and abroad understood by people already.Wherein the fuel water technology is obtaining extensive exploitation, and has obtained the test application on explosive motor.Itself does not burn water, and explosive motor uses aqueous fuel why energy-conservation, is not that water has substituted fuel, but has promoted burning, makes original burning more perfect.Water can produce atom, free radicals such as a large amount of H, O and HO in the burning of cylinder High Temperature High Pressure, these materials have activated whole combustion processes greatly.The one, it is fully combustion-supporting to utilize self to decompose oxygen, suppressed the generation of unburned carbon, promote its perfect combustion, thereby saved fuel oil: the 2nd, utilize the characteristic of water specific heat maximum in solid and liquid to absorb power component heat rapidly and reduce the bloated property friction of splashing, reduced from wasted work and fuel saving, increased power.And because water vapour content increase in the products of combustion, the high-temperature duration that its good endothermic character produces burning shortens, and has destroyed the thermodynamic condition that NOx generates, thereby has reduced the discharging of NOx significantly.The 3rd, can reduce localized hyperthermia's anoxic dehydrogenation hydrocarbon cracking and form the charcoal particle, make each wall and protuberance megadyne temperature degree homogenizing such as injector head, sparking electrode in the combustion chamber, thereby guarantee that work system all the time under the good environment state, reaches the consumption reduction purpose.The 4th, impel secondary-atomizing.Since water than oily boiling point low and the burning initial stage at first obtain the vaporization, because of changing rapidly, its pressure and volume produce effect of micro-explosion in the vaporescence, the secondary-atomizing that burning mixt has not been obtained after entering the combustion chamber mixes, this twice atomizing mixes, make oil inflame more complete, not only improved the combustion utilization efficiency of fuel but also reduced the generation of incomplete combustion products such as CO, HC.
People are called oxygen-rich air to oxygen level greater than 20.93% air.Oxygen-enriched combusting is to utilize oxygen-rich air to replace air to participate in the incendiary power-saving technology as auxiliary fuel.Because its energy-saving effect is remarkable, has obtained widespread use in recent years on various Industrial Stoves.Usually the content of oxygen is 20.93% in the air, all the other compositions are nitrogen (78.1%) and small amounts of inert gas etc., real about 1/5 of the incendiary oxygen duty gas total amount that participates in, and not only the nitrogen of duty gas total amount 4/5 and other rare gas elementes can not burn, in burner through the back of heating up significantly along with the high-temperature flue gas discharge also will be taken away a large amount of heat energy.Adopt oxygen-enriched combusting obviously to alleviate and improve said process, improve efficiency of combustion and then play the effect of energy-saving and pollution-reducing.Its mechanism is:
1. can improve combustionvelocity, reduce the burning-point of fuel.Being 280cm/s to the maximum as the aerial combustionvelocity of hydrogen, is 1175cm/s in pure oxygen, is aerial 4.2 times, and Sweet natural gas is then up to 10.7 times.Use oxygen-enriched combustion-supporting, can shorten combustion time, improve combustionvelocity and intensity of combustion, make burning more complete, thereby improve rate of combustion, and fundamentally suppressed the generation of incomplete combustion products such as CO, HC.The 2nd, reduced the ignition temperature of fuel, in air, be 609 ℃ as the burning-point of CO, in pure oxygen only 388 ℃, so can reduce the fuel burning-point, improve flame intensity, increase energy release etc. with oxygen-enriched combustion-supporting.
2. can increase heat utilization ratio, reduce the products of combustion quantity discharged.At first, because oxygen level increases and nitrogen content descends and to have strengthened combustion processes in the oxygen-enriched combustion-supporting gas, can significantly improve the heat utilization ratio of combustion processes.Calculate through thermal conduction study, as combustion-supporting with normal air, when chamber temperature was 1300 ℃, available heat was 42%; And during with 26% oxygenized air combustion supporting, available energy is 56%, and heat utilization ratio can increase by 14%, and oxygen-rich concentration is big more, and temperature of combustion is high more, and the ratio that heat utilization ratio increases is just big more, and energy-saving effect is just obvious more.Secondly, because the minimizing of a nitrogen content and total supply thereof in the oxygen-rich air, thus the total emission volumn of products of combustion is reduced, therefore and also corresponding the reducing of discharging thermosteresis that produces, the generally every increase by 1% of oxygen concn, the products of combustion quantity discharged 2-4.5% that descends approximately.
As previously mentioned, fuel water combustion technology and oxygen-enriched combustion technology all have can improve efficiency of combustion, saves fuel oil and reduces the pollutant emission double effects.But it is to be noted, also all there is its weak point separately in the two: for the fuel water combustion technology, owing to the adding of water has formed the part favorable factor, but from energy balance, the power of whole combustion system does not obviously improve, and after the additional proportion of water reaches a certain numerical value, the power of combustion system will be on a declining curve with the increase of the add-on of water.For oxygen-enriched combustion technology, though have because the adding of oxygen-rich air has improved the combustionvelocity of whole combustion system and intensity of combustion and temperature of combustion and then improved the power and the thermo-efficiency of combustion system, and the favorable factors such as generation that suppressed incomplete combustion products such as CO, HC, but because the rising of chamber temperature and the prolongation of time length thereof, strengthen the thermodynamic condition that NOx generates, caused the drawback that the content of NOx increases in the products of combustion.
More than analyze as seen: fuel water combustion technology and oxygen-enriched combustion technology promptly have can improve efficiency of combustion, fuel-saving common advantage, has the underproof and the NOx that make combustion system to discharge the inferior position that content increases again.
The purpose of this invention is to study a kind of compound fuel combustion technology that fuel water and oxygen enrichment are supplied gas carry out simultaneously, thinking according to fuel water, in fuel oil, add a kind of new additive, make it can realize simultaneously that above-mentioned two kinds of mode actings in conjunction are in the relevant function of fuel combustion process.According to above-mentioned purpose, neoteric technology will realize oxygen enrichment on the one hand, thereby the power that brings the lifting of power to remedy to cause because of emulsifying combustion for explosive motor descends, the adding of water also will be arranged on the other hand, make it possible to reduce the high temperature and the time length thereof that produce because of oxygen-enriched combusting, thereby suppress the generation of NOx.Based on above-mentioned imagination, made this invention according to the thinking of fuel water oxygen enrichment compound combustion.
Summary of the invention
In order to realize that fuel combustion is combustion-supporting and to reduce the goal of the invention of obnoxious flavour environmental pollution, the inventor has carried out extensive investigations and research, and to select explosive motor be that the vehicle-mounted removable combustion equipment of power carries out concrete discussion as main application, this is also one to satisfy other equipment surely and implement the demand of fuel water oxygen enrichment compound burning technologies for similar additive because can satisfy additive that the vehicle-mounted removable combustion equipment realizes fuel water oxygen enrichment compound burning technology, this is that compound burning technology has certain singularity because this kind equipment is implemented the fuel water oxygen enrichment, mainly show: one is subjected to vehicle-mounted space constraint, requires newly-increased storing unit, the volume of conveying plenum system etc. can not be excessive; Its two, consider the changeable characteristics of portable combustion unit load behavior, higher to the control accuracy of combustion unit and response time requirement.Based on above-mentioned consideration, can realize that the combustion reactions working medium (hereinafter to be referred as additive) of fuel water oxygen enrichment compound burning technology proposes basic demand to being suitable for portable combustion unit:
1. must contain the oxygen nonmetallic compound for water-soluble height; Under normal temperature and pressure conditions, has stable chemical property; Under suitable catalytic condition, can decompose and discharge oxygen; Other compositions of compound can perfect combustion, and compound itself and products of combustion thereof have no adverse effects to ecotope.
2. this compound and the aqueous solution thereof should have good flowability at normal temperatures and pressures, are easy to store carry and use; The aqueous solution has higher boiling point and lower freezing point finite concentration scope planted agent, to adapt to the variation of most of regional temperature in four seasons.
3. compound should be easy to produce, and is suitable for lower cost large-scale commercial production; And production process meets environmental requirement.
According to above basic demand, by to methyl alcohol, ethanol, methyl ether, hydrogen peroxide (H
2O
2) wait the physicochemical property of multiple compound to be analyzed discovery, the aqueous solution of hydrogen peroxide (hereinafter to be referred as superoxol) is the perfect additive that meets above basic demand.This be because: at first, hydrogen peroxide is the entity of oxygen and water, and the branch rate of oxygen is 32/34 in its molecular weight, has the characteristic of hyperoxia; Secondly, hydrogen peroxide is easy to catalytic decomposition and discharges oxygen, with C, H
2Its products of combustion of perfect combustion reaction back takes place remove CO
2And H
2Not having other materials beyond the O, is the oxidation ignition dope of cleaning.
Therefore, water mixing belongs to a kind of technical field in this invention and the fuel combustion process in the past, promptly be the fuel oil burning-aid method that fuel oil adds ignition dope, it is characterized in that superoxol is injected in the combustion chamber of combustion equipment after vaporization by certain conveying, control and decomposition vapourizing unit as additive, increase the content of combustion-supporting inflammable gases such as oxygen in the mixed oil and gas, hydrogen with this, thereby the raising efficiency of combustion reduces discharge of harmful gases.
Replacing water to implement the oxygen enrichment compound burning technology with hydrogen peroxide, applicable to the occasion of all fuel waters, will be more obvious for the combustion efficacy of liquid or gaseous fuel wherein.If use gaseous state or liquid fuel, can adopt fuel and ignition dope hydrogen peroxide independently to store separately, the combustion system of the hydrogen peroxide after the decomposition vaporization is supplied with in the combustion chamber is realized in proportion.
Description of drawings
Accompanying drawing 1 is method that this invention realizes a used concrete schematic representation of apparatus when being applied to the vehicle IC engine.
As shown in Figure 1, when the method that this invention realized is applied to the vehicle IC engine, employed concrete device mainly is made up of torage tank 1, fluid pipeline 2, supplying valve 3, flow controlling unit 4, reverse checkvalve 5, catalytic decomposition vaporization unit 6, intake manifold 7, internal-combustion engine machine control signal take-off equipment 9, and other are explosive motor cylinder 8, gas pipeline 10, mist of oil gas mixture 11, moisture oxygen enrichment mist of oil gas mixture 12 etc. among the figure; Wherein torage tank 1, supplying valve 3, flow controlling unit 4, reverse checkvalve 5, catalytic decomposition vaporization unit 6, all be cascaded by fluid pipeline 2,7 of catalytic decomposition vaporization unit 6 and intake manifold are connected by gas pipeline 10, and the control end of flow controlling unit 4 is connected to internal-combustion engine machine control signal take-off equipment 9.During work, aqueous hydrogen peroxide solution by torage tank 1 after fluid pipeline 2 is flowed through supplying valve 3, be transported to flow controlling unit 4, the control signal that flow controlling unit 4 provides according to internal-combustion engine machine control signal take-off equipment 9, the be complementary aqueous hydrogen peroxide solution of flow of output and explosive motor rotating speed, process reverse checkvalve 5 enters and carries out the catalysis heating in the catalytic decomposition vaporization unit 6, make it to decompose vaporization, obtain the mixture of oxygen and water vapour, enter intake manifold 7 through gas pipeline 10, and form moisture oxygen enrichment mist of oil gas mixture 12 behind mist of oil gas mixture 11 thorough mixing that produced by the explosive motor oil supply system and be inhaled in the explosive motor cylinder 8 and burn.
With in the device, supplying valve 3 is a kind of common valve, is provided with for ease of maintenance, opens supplying valve during work at above-mentioned vehicle IC engine, and then system is in water mixing oxygen enrichment compound combustion state; Maintenance or when temporarily not having superoxol can be closed, and then explosive motor enters the usual working order that does not have additive.Flow controlling unit 4 is the controlled valve that can regulate flow, and control signal is taken from explosive motor tach signal or explosive motor vacuum tightness signal.When explosive motor is in off working state, the 9 no control signal outputs of internal-combustion engine machine control signal take-off equipment, valve is in closing condition, superoxol can't enter back level reverse checkvalve 5, and in the catalytic decomposition vaporization unit 6, when explosive motor is in running order, internal-combustion engine machine control signal take-off equipment 9 output signals, valve is in opened condition and according to the size of control signal of output, real time altering flows through the superoxol flow of valve, with adapt to explosive motor when the different working speeds to the superoxol flow requirements.Reverse checkvalve 5 increases and produces adverse current and prime is produced disturb and be provided with decomposing vaporization back volume and pressure in order to prevent aqueous hydrogen peroxide solution.Catalytic decomposition vaporization unit 6 is isothermal reaction containers that volume is very little and have the rapid heating ability, wherein fills MnO
2Catalyzer after superoxol enters reaction vessel from inlet, because fierce decomposition reaction takes place for the suitable temperature and the acting in conjunction of catalyzer, generates water vapour and oxygen and discharges from the exit.The input signal of internal-combustion engine machine control signal take-off equipment 9 is taken from the voltage signal of explosive motor rotating speed instrument or the air pressure signal in the intake ducting, they all have certain corresponding relation with the rotating speed of explosive motor, through suitably handling back output control signal driving flow controlling unit 4.
Hydrogen peroxide is commonly called as hydrogen peroxide, chemical formula H
2O
2, molecular weight 34.Be light blue thick liquid when pure, be slightly acidic.Density 1.465, fusing point-0.41 ℃, 150.2 ℃ of boiling points, odorless.Can mix with arbitrary proportion with water, ethanol, ether etc.Will take place fierce the decomposition in pure hydrogen peroxide and solution quite stable thereof during normal temperature when being heated to certain temperature, generate water vapour and oxygen.Utilize this character of superoxol, the hydrogen peroxide that is contained in the container is heated through catalyst, make it to become the gas mixture of oxygen and water vapour, join the technique effect that to realize aforesaid fuel water oxygen enrichment compound combustion in the fuel vapor that has been vaporized then.
The technology of the present invention has following outstanding feature:
1. the present invention can realize oxygen enrichment and the water mixing in the fuel combustion process simultaneously, can improve efficiency of combustion, and save energy can reduce noxious gas emission again, the protection environment;
2. implementing process is simple, and the apparatus structure of increase is simple, is easy to make and install, and for various explosive motors, is easier to implement.
3. the chemical property of the employed additive aqueous hydrogen peroxide solution of this technology is very stable, nonpoisonous and tasteless, is difficult for decomposing volatilization, can use safely under normal temperature and pressure conditions and transport and preserve with non-pressure vessel.
4. the aqueous hydrogen peroxide solution of suitable concn has boiling point and is higher than 100 ℃, and freezing point is lower than-18 ℃ liquid temperature interval, can be fit to the requirement of various temperature conditions;
5. the low-cost large-scale commercial production technology of hydrogen peroxide is very ripe, and its selling price is far below the various processed oils that use.And its production capacity is huge, and only China just has and surpasses 1,000 ten thousand tons/year throughput, and output occupies first place in the world, and can be to further expand its application space material guarantee is provided;
This invention provides another approach for energy-conservation energy consumption of explosive motor and minimizing atmospheric pollution.This soars at present fuel price, the epoch of environmental requirement harshness, implements this technology and seems and be even more important.
Embodiment
This invention has been tested enforcement.On four-stroke that a free air delivery is 2237 (ml), carburetor type in-line four cylinder gasoline internal combustion engine hand gear four-wheel drive Der Gelaendewagen, equip the quantitative interpolation that is suitable for aqueous hydrogen peroxide solution under the different working conditions as shown in Figure 1 and fully vaporized to decompose and participated in combustion unit, wherein flow controlling unit 4 metering-orifice that uses motorcycles vacuum degree control oil switch commonly used and be connected in series suitable bore is formed, and the vacuum degree control signal is taken from the vehicle vacuum-lines and is connected with the control end of switch by pipeline.When explosive motor was in off working state, the vacuum degree control switch was in closing condition, and no aqueous hydrogen peroxide solution flows through; When explosive motor is in running order, vehicle vacuum-lines output negative pressure signal, the vacuum degree control oil switch is in opened condition, because the existence of metering-orifice has limited the flow of aqueous hydrogen peroxide solution and the superoxol of flow that can adapt with it according to the variation output of vacuum tightness in the intake manifold 7, thereby realize the quantitative interpolation of aqueous hydrogen peroxide solution under the different working conditions.Catalytic decomposition vaporization unit 6 adopts self-control stainless steel tubular type reactor, and inside fills MnO
2Catalyzer and the constant temperature electric heater unit is housed can access abundant vaporization with the superoxol that guarantees the inlet inflow reactor and decompose the back and participate in burning.Consider and be convenient to comparison, vehicle is not installed exhaust gas purification equipment.Employing is suitable for low cost, less energy-consumption, and 27% the industrial aqueous hydrogen peroxide solution that large-scale industrial production and safety performance are stable is an additive.
Issuable experimental data error and assurance experiment are as far as possible near the actual environment for use of vehicle in order to reduce road and changes in environmental conditions, select for use the outskirts of a town Class I highway to come and go twice for 50 kilometers, experimentize and contrast each oil consumption and collection of dynamic property experimental data of one group, the pollutant emission test relies on Motor vehicles to detect the place to carry out operating mode and detect.
Obtain two groups of data altogether through experiment, that is: add the experimental group data of hydrogen peroxide additive gained and do not add the control group data that hydrogen peroxide obtains.
(1) oil consumption contrast
Actual service life in the table 1, running time, gasoline/aqueous hydrogen peroxide solution consumption is experiment and contrasts the data that two groups of experiments record, unit oil consumption and V-bar calculate arrangement to measured data and obtain, by table 1 as seen, experimental group has descended 17.4% than the oil consumption of control group unit, has tangible oil-saving effect.
Fuel consumption data comparative analysis table 1
| Group | Actual service life (KM) | Running time (MIN) | V-bar (KM/H) | Gasoline/hydrogen peroxide consumption (L) | Unit oil consumption (L/100KM) |
| Control group | 100.3 | 89 | 67.6 | 10.8/0 | 10.76 |
| Experimental group | 100.1 | 92 | 65.4 | 8.9/2.4 | 8.89 |
(2) dynamic performance contrast
In oil consumption contrast test process, had been noted that the car load dynamic performance that the adding owing to hydrogen peroxide brings significantly promotes.The vehicle middle discovery of travelling, under identical throttle opening condition, vehicle is whole in whole speed ranges to have the dynamic performance of a gear to promote.In length distance climbing test, experimental group can be sloping with the length that the top gear position gets over, and control group must reduce a gear in back 1/3rd distances on sloping road.Also by the 15KM/H of control group, 25KM/H is reduced to the 12KM/H and the 20KM/H of experimental group to the minimum stabilizing speed of three, four gears.
(3) pollutant emission contrast
Owing to used the carburettor fuel system, the vehicle of emission-free refining plant has made things convenient for test and adjustment, makes the pollutant emission contrast test be more prone to directly perceived, and the test set that can utilize Motor vehicles to detect the place carries out preliminary qualitative test.At first, by adjusting carburettor gas mixture is thickened, tail gas is carried out the control group test, test result is, under idling and two kinds of operating modes of high idle speed, and CO, HC exceeds national standard, and NOx meets national standard.Open the hydrogen peroxide supplying valve then, make explosive motor work in water mixing oxygen enrichment compound combustion pattern, the group that experimentizes test, under above two kinds of operating modes, CO, HC, NOx all meet national standard.Secondly, adjust carburettor and make lean out, repeat above-mentioned test, test result is, control group NOx exceeds national standard, CO, and HC meets national standard.Experimental group CO, HC, NOx all meet national standard.
We can say through implementing check, utilize aqueous hydrogen peroxide solution to realize that the method for explosive motor water mixing oxygen enrichment compound combustion is a kind of effective means that can improve the explosive motor over-all properties, adopt this kind method can obviously improve the main performance index such as fuel consumption, dynamic performance and pollutant emission of explosive motor.Under the prerequisite that need not change existing explosive motor structure, increase the internal combustion explosive motor that a small amount of device promptly can be widely used in various fuel and structure, also can be applicable to other non-hot machine class combustion units, have good practical value and wide promotion prospect.
Claims (6)
1. a fuel oil adds the method that ignition dope improves oil inflame efficient, it is characterized in that being injected in the combustion chamber of combustion equipment after vapourizing unit decomposes the aqueous hydrogen peroxide solution vaporization by carrying, control and decomposing.
2. according to the method for the said raising oil inflame of claim 1 efficient, it is characterized in that said conveying in the method, control and decomposition vapourizing unit are by torage tank 1, fluid pipeline 2, supplying valve 3, flow controlling unit 4, reverse checkvalve 5, catalytic decomposition vaporization unit 6, intake manifold 7, oil engine control signal take-off equipment 9 is formed, wherein torage tank 1, supplying valve 3, flow controlling unit 4, reverse checkvalve 5, catalytic decomposition vaporization unit 6, all be cascaded by fluid pipeline 2, catalytic decomposition vaporization unit 6 is connected by gas pipeline 10 with intake manifold 7, and the control end of flow controlling unit 4 is connected to oil engine control signal take-off equipment 9.
3. according to the method for the said raising oil inflame of claim 1 efficient, it is characterized in that the supplying valve 3 in said conveying in the method, control and the decomposition vapourizing unit is a kind of common valves.
4. according to the method for the said raising oil inflame of claim 1 efficient, it is characterized in that the flow controlling unit 4 in said conveying in the method, control and the decomposition vapourizing unit is a controlled valve that is subjected to the adjustable throttle amount of oil engine control signal take-off equipment 9 controls.
5. according to the method for the said raising oil inflame of claim 1 efficient, it is characterized in that catalytic decomposition vaporization unit 6 in said conveying in the method, control and the decomposition vapourizing unit is isothermal reaction containers that volume is very little and have the rapid heating ability, wherein fills MnO
2Catalyzer.
6. according to the method for the said raising oil inflame of claim 1 efficient, it is characterized in that the input signal of the oil engine control signal take-off equipment 9 in said conveying in the method, control and the decomposition vapourizing unit can be taken from the voltage signal of internal-combustion engine rotational speed instrument or the air pressure signal in the intake ducting.
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| CN 200510047932 CN1775931A (en) | 2005-12-07 | 2005-12-07 | Fuel combined combustion method by adding hydrogen peroxide combustion adjuvant |
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| CN 200510047932 CN1775931A (en) | 2005-12-07 | 2005-12-07 | Fuel combined combustion method by adding hydrogen peroxide combustion adjuvant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914406A (en) * | 2010-09-06 | 2010-12-15 | 魏晓东 | Oxygen-enrichment steam and biomass fuel combustion improver as well as synthesizing equipment and energy-saving and environmental-protection method thereof |
| CN105986938A (en) * | 2015-02-04 | 2016-10-05 | 深圳市福田区青少年科技教育协会 | Multistage combustion environment-friendly engine |
| CN106833762A (en) * | 2016-12-30 | 2017-06-13 | 上海哈勃化学技术有限公司 | A kind of low freezing point fuel and preparation method thereof |
-
2005
- 2005-12-07 CN CN 200510047932 patent/CN1775931A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914406A (en) * | 2010-09-06 | 2010-12-15 | 魏晓东 | Oxygen-enrichment steam and biomass fuel combustion improver as well as synthesizing equipment and energy-saving and environmental-protection method thereof |
| CN101914406B (en) * | 2010-09-06 | 2013-06-12 | 魏晓东 | Oxygen-enrichment steam and biomass fuel combustion improver as well as synthesizing equipment and energy-saving and environmental-protection method thereof |
| CN105986938A (en) * | 2015-02-04 | 2016-10-05 | 深圳市福田区青少年科技教育协会 | Multistage combustion environment-friendly engine |
| CN106833762A (en) * | 2016-12-30 | 2017-06-13 | 上海哈勃化学技术有限公司 | A kind of low freezing point fuel and preparation method thereof |
| CN106833762B (en) * | 2016-12-30 | 2018-09-04 | 上海哈勃化学技术有限公司 | A kind of low freezing point fuel and preparation method thereof |
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