CN106479582B - Liquid carbon hydrogen fuel with low-temperature burning characteristic - Google Patents

Liquid carbon hydrogen fuel with low-temperature burning characteristic Download PDF

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Publication number
CN106479582B
CN106479582B CN201610950832.9A CN201610950832A CN106479582B CN 106479582 B CN106479582 B CN 106479582B CN 201610950832 A CN201610950832 A CN 201610950832A CN 106479582 B CN106479582 B CN 106479582B
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fuel
liquid carbon
low
carbon hydrogen
hydrogen fuel
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CN106479582A (en
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黄小彬
刘洪�
励孝杰
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/04Liquid carbonaceous fuels essentially based on blends of hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/185Ethers; Acetals; Ketals; Aldehydes; Ketones
    • C10L1/1852Ethers; Acetals; Ketals; Orthoesters
    • C10L1/1855Cyclic ethers, e.g. epoxides, lactides, lactones
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/30Organic compounds compounds not mentioned before (complexes)
    • C10L1/301Organic compounds compounds not mentioned before (complexes) derived from metals
    • C10L1/303Organic compounds compounds not mentioned before (complexes) derived from metals boron compounds

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

A kind of liquid carbon hydrogen fuel with low-temperature burning characteristic, formed by the liquid carbon hydrogen fuel as substrate fuel and as diethylmethoxyborane/tetrahydrofuran mixed liquor of ignition improver, wherein:The volume fraction of ignition improver is 10%~50%.Physical aspect of the present invention is stable, without precipitation, it is not stratified, with relatively low autoignition temperature, less ignition delay time and higher specific impulse, the advantages that in normal temperature environment with air contact safety not spontaneous combustion, and can be by the regulation and control that control the concentration of ignition improver to realize to hybrid fuel low-temperature burning characteristic, it is simple to operate, it is practical.

Description

Liquid carbon hydrogen fuel with low-temperature burning characteristic
Technical field
The present invention relates to a kind of technology in aviation fuel field, is specifically that one kind is started for the combination circulation of turbine base The liquid carbon hydrogen fuel with low-temperature burning characteristic of machine (TBCC).
Background technology
With turbine base combined cycle engine (TBCC) for power aircraft have flight envelope it is wide, than leaping high, Repeatable the features such as utilizing, be the best power source scheme for realizing 0~40Km altitudes.Due to turbojet and punching press Respective flight optimization Mach number be present in engine, it is considered that and it is TBCC working mode change point between Ma=2~3, I.e. the method for operation switches to punching engine from turbojet, and this means that punching engine must be Ma <'s 3 In the case of reliable start the steady switching that just can guarantee that two kinds of engine working modes.Liquid carbon hydrogen fuel with its economy it is high, The workable, advantage such as bulk density is big, it is the first choice of airbreathing motor fuel.But compared to hydrogen fuel, hydrocarbon fuel Reactivity at low ambient temperatures is low, be embodied in reaction rate is small, minimum ignition energy is big, ignition delay time length Deng, this for punching engine low mach reliably start be very unfavorable.Enabled to build in low temperature environment Hydrocarbon fuel rapid-ignition and a series of servicing units such as condition, high-energy igniter, flame stabilization structure of burning have obtained extensively General application, but the servicing unit that burns will make that engine system is more complicated, and reliability further reduces, and produce huge Quality penalty, this lifting to engine overall performance is totally unfavorable.Therefore conventional carbon is changed by way of chemical regulation The low-temperature burning characteristic of hydrogen fuel is the effective way to solve the above problems.
The content of the invention
The present invention is directed to deficiencies of the prior art, proposes a kind of hydrocarbon combustion of liquid with low-temperature burning characteristic Material, the fuel physical form stable, it is no precipitation, it is not stratified, have relatively low autoignition temperature, less ignition delay time and compared with High specific impulse, the advantages that in normal temperature environment with air contact safety not spontaneous combustion, and can be by controlling the concentration of ignition improver It is simple to operate to realize the regulation and control to hybrid fuel low-temperature burning characteristic, it is practical.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of liquid carbon hydrogen fuel, promotes by the liquid carbon hydrogen fuel as substrate fuel and as igniting The diethylmethoxyborane of agent/tetrahydrofuran mixed liquor composition, wherein:The volume fraction of ignition improver be 10%~ 50%.
Described liquid carbon hydrogen fuel is using Chinese No. 3 aviation kerosines, decane or normal heptane.
The body of diethylmethoxyborane and tetrahydrofuran in described diethylmethoxyborane/tetrahydrofuran mixed liquor Product is than being 1:1.
The present invention relates to the low-temperature burning characteristic of above-mentioned liquid carbon hydrogen fuel to regulate and control implementation method, by taking respectively in proportion Substrate fuel and ignition improver, are uniformly mixed in inert gas environment, produce the hybrid fuel of required performance.
Technique effect
Compared with prior art, the present invention can control minimum to catch fire wall surface temperature, and being embodied in, which reduces minimum, catches fire Wall surface temperature, and by the regulation of ignition improver concentration, realize the control for the wall surface temperature that caught fire to minimum;And this hair The bright ignition delay time that can effectively reduce traditional hydrocarbon fuel, and by the regulation of ignition improver concentration, realize Control to ignition delay time;Additive used in the present invention can be dissolved each other with substrate fuel with any ratio, it is no precipitation, regardless of Layer, therefore the hybrid fuel that this method obtains can store for a long time under inert gas shielding.Even if there is a certain amount of leakage, often In warm environment will not spontaneous combustion, security is good;The present invention only does thing to substrate fuel and additive under inert gas shielding environment Reason mixing, preparation technology is simple, and a small amount of prepare can manually complete.
Brief description of the drawings
Fig. 1 is dynamic change on heating flat board of hybrid fuel drop in embodiment 2, is caught fire and combustion process signal Figure;
In figure:Wall surface temperature is 450 DEG C, and a~e is followed successively by t=t0(contact), t=t0+ 4ms (stretching, extension), t=t0+24ms (bounce-back), t=t0+ 78ms (catching fire), t=t0+ 150ms (burning);
Fig. 2 is minimum catch fire wall of the hybrid fuel drop on heating flat board in pure decane drop and embodiment 2,4 Face temperature schematic diagram;
Fig. 3 is hybrid fuel drop in pure decane drop and embodiment 2,4 in the ignition lag on heating flat board Between schematic diagram.
Embodiment
Embodiment 1
The present embodiment presses following proportional arrangement hybrid fuel:
Step 1: Chinese No. 3 aviation kerosines, decane or normal heptane, volume hundred are added into the fuel tank of argon gas-sealed It is 90% to divide content;
Step 2: add diethyl into the above-mentioned fuel tank that with the addition of Chinese No. 3 aviation kerosines, decane or normal heptane The mixed liquor of methoxyborane/tetrahydrofuran, it is diethylmethoxyborane 5% that it, which is matched, and tetrahydrofuran 5%, China 3 navigates Empty kerosene, decane or normal heptane 90%.
Step 3: making the liquid in fuel tank uniformly mix by physics mode, physics mode is used but is not limited to herein: Hand mix.
Embodiment 2
The present embodiment presses following proportional arrangement fuel:
Step 1: Chinese No. 3 aviation kerosines, decane or normal heptane, volume hundred are added into the fuel tank of argon gas-sealed It is 80% to divide content;
Step 2: add diethyl into the above-mentioned fuel tank that with the addition of Chinese No. 3 aviation kerosines, decane or normal heptane The mixed liquor of methoxyborane/tetrahydrofuran, it is diethylmethoxyborane 10% that it, which is matched, and tetrahydrofuran 10% is Chinese No. 3 Aviation kerosine, decane or normal heptane 80%.
Step 3: making the liquid in fuel tank uniformly mix by physics mode, physics mode is used but is not limited to herein Hand mix.
Combustion characteristics in the present embodiment using hybrid fuel drop on heating flat board is of the invention to conventional carbon to illustrate The regulating effect of hydrogen fuel low-temperature burning characteristic.
As shown in figure 1, to record dynamic change of the fuel droplet on heating flat board using high speed camera, catching fire and burn Process.By whether detecting flame to judge whether to catch fire, and flat board is heated between the time for flame occur with drop contact Every as ignition delay time.
The hybrid fuel using decane as substrate fuel is taken, ignition improver volume fraction is 20%, with therein pure Ten alkane operating mode as a comparison.
As shown in Figure 2 to 3, the technique effect of the present embodiment is specially:Compared with pure decane, minimum is caught fire wall temperature Degree is reduced to 215 DEG C from 600 DEG C, and ignition delay time is reduced to 45ms from 580ms, and low-temperature burning characteristic obtains efficient hardening.
Embodiment 3
The present embodiment presses following proportional arrangement hybrid fuel:
Step 1: Chinese No. 3 aviation kerosines, decane or normal heptane, volume hundred are added into the fuel tank of argon gas-sealed It is 70% to divide content;
Step 2: add diethyl into the above-mentioned fuel tank that with the addition of Chinese No. 3 aviation kerosines, decane or normal heptane The mixed liquor of methoxyborane/tetrahydrofuran, it is diethylmethoxyborane 15% that it, which is matched, and tetrahydrofuran 15% is Chinese No. 3 Aviation kerosine, decane or normal heptane 70%.
Step 3: making the liquid in fuel tank uniformly mix by physics mode, physics mode is used but is not limited to herein Hand mix.
Embodiment 4
The present embodiment presses following proportional arrangement hybrid fuel:
Step 1: Chinese No. 3 aviation kerosines, decane or normal heptane, volume hundred are added into the fuel tank of argon gas-sealed It is 60% to divide content;
Step 2: add diethyl into the above-mentioned fuel tank that with the addition of Chinese No. 3 aviation kerosines, decane or normal heptane The mixed liquor of methoxyborane/tetrahydrofuran, it is diethylmethoxyborane 20% that it, which is matched, and tetrahydrofuran 20% is Chinese No. 3 Aviation kerosine, decane or normal heptane 60%.
Step 3: making the liquid in fuel tank uniformly mix by physics mode, physics mode is used but is not limited to herein Hand mix.
In the present embodiment, the expression method of regulating effect is the same as embodiment 2, as shown in Figure 2 to 3, the technology of the present embodiment Effect is specially:Compared with the hybrid fuel in pure decane and embodiment 2, the minimum wall surface temperature that catches fire is further reduced to 175 DEG C, ignition delay time is further reduced to 30ms, and low-temperature burning characteristic is further strengthened.Meanwhile different additive The low-temperature burning characteristic reinforcing difference on effect that the hybrid fuel of volume fraction is embodied is obvious, illustrates by adjusting additive Concentration can effectively regulate and control the low-temperature burning characteristic of liquid carbon hydrogen fuel.
Embodiment 5
The present embodiment presses following proportional arrangement hybrid fuel:
Step 1: Chinese No. 3 aviation kerosines, decane or normal heptane, volume hundred are added into the fuel tank of argon gas-sealed It is 50% to divide content;
Step 2: add diethyl into the above-mentioned fuel tank that with the addition of Chinese No. 3 aviation kerosines, decane or normal heptane The mixed liquor of methoxyborane/tetrahydrofuran, it is diethylmethoxyborane 25% that it, which is matched, and tetrahydrofuran 25% is Chinese No. 3 Aviation kerosine, decane or normal heptane 50%.
Step 3: making the liquid in fuel tank uniformly mix by physics mode, physics mode is used but is not limited to herein Hand mix.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the principle of the invention and objective with difference Mode local directed complete set is carried out to it, protection scope of the present invention is defined by claims and not by above-mentioned specific implementation institute Limit, each implementation in the range of it is by the constraint of the present invention.

Claims (3)

1. a kind of liquid carbon hydrogen fuel, it is characterised in that promote by the liquid carbon hydrogen fuel as substrate fuel and as igniting The diethylmethoxyborane of agent/tetrahydrofuran mixed liquor composition, wherein:The volume fraction of ignition improver be 10%~ 50%.
2. liquid carbon hydrogen fuel according to claim 1, it is characterized in that, the hydrocarbon combustion of the liquid as substrate fuel Material is using Chinese No. 3 aviation kerosines, decane or normal heptane.
3. liquid carbon hydrogen fuel according to claim 1, it is characterized in that, described diethylmethoxyborane/tetrahydrochysene furan The volume ratio of diethylmethoxyborane and tetrahydrofuran in mixed liquor of muttering is 1:1.
CN201610950832.9A 2016-10-25 2016-10-25 Liquid carbon hydrogen fuel with low-temperature burning characteristic Active CN106479582B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109337719B (en) * 2018-11-13 2020-11-06 湖北航天化学技术研究所 Energy storage fuel containing fluorinated nano aluminum powder
CN110747017B (en) * 2019-11-13 2021-06-22 上海交通大学 Method for regulating and controlling low-pressure combustible limit of liquid hydrocarbon fuel based on combustion reaction path
CN111004656B (en) * 2019-12-19 2021-07-30 上海交通大学 Method for activating liquid hydrocarbon fuel to burn at low temperature based on dynamic induction effect
CN111500326B (en) * 2020-04-27 2022-02-25 上海交通大学 Liquid hydrocarbon fuel low-temperature stable combustion method based on Lailton-free effect

Citations (4)

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US3883376A (en) * 1970-11-05 1975-05-13 Us Navy High reactivity fuels for supersonic combustion ramjets
CN1150447A (en) * 1994-03-02 1997-05-21 威廉·C·奥尔 Unleaded MMT fuel compositions
CN102802815A (en) * 2009-06-26 2012-11-28 巴斯夫欧洲公司 Method of dissociating an organoborane-amine complex
CN105670719A (en) * 2016-03-10 2016-06-15 安徽辉源机电有限公司 High-quality low-residual-carbon biomass diesel composite additive and preparation method thereof

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US7572303B2 (en) * 1997-12-08 2009-08-11 Octane International, Ltd. Fuel compositions exhibiting improved fuel stability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883376A (en) * 1970-11-05 1975-05-13 Us Navy High reactivity fuels for supersonic combustion ramjets
CN1150447A (en) * 1994-03-02 1997-05-21 威廉·C·奥尔 Unleaded MMT fuel compositions
CN102802815A (en) * 2009-06-26 2012-11-28 巴斯夫欧洲公司 Method of dissociating an organoborane-amine complex
CN105670719A (en) * 2016-03-10 2016-06-15 安徽辉源机电有限公司 High-quality low-residual-carbon biomass diesel composite additive and preparation method thereof

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