CN109630245A - A kind of lighter hydrocarbons/Reforming Diesel Fuel system and reforming method - Google Patents
A kind of lighter hydrocarbons/Reforming Diesel Fuel system and reforming method Download PDFInfo
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- CN109630245A CN109630245A CN201811538943.4A CN201811538943A CN109630245A CN 109630245 A CN109630245 A CN 109630245A CN 201811538943 A CN201811538943 A CN 201811538943A CN 109630245 A CN109630245 A CN 109630245A
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- 239000002283 diesel fuel Substances 0.000 title claims abstract description 94
- 238000002407 reforming Methods 0.000 title claims abstract description 81
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 38
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 91
- 239000000446 fuel Substances 0.000 claims abstract description 76
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 66
- 238000006057 reforming reaction Methods 0.000 claims abstract description 61
- 238000000889 atomisation Methods 0.000 claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000012159 carrier gas Substances 0.000 claims abstract description 12
- 239000000295 fuel oil Substances 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000010992 reflux Methods 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000752 ionisation method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000000629 steam reforming Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/032—Producing and adding steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
- F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
- F02M27/04—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses a kind of lighter hydrocarbons/Reforming Diesel Fuel system and reforming methods, reforming system includes light-hydrocarbon fuel feedway, diesel fuel supply device, reforming reaction device and gas mixer, gas mixer is equipped with carrier gas air inlet pipe and vapor air inlet pipe, light-hydrocarbon fuel feedway is for supplying atomization light-hydrocarbon fuel, diesel fuel supply device is for supplying atomized diesel fuel, atomization light-hydrocarbon fuel and diesel oil enter that gas mixer is interior and carrier gas by pipeline, vapor is formed together mixed gas, mixed gas, which enters, carries out reforming reaction in reforming reaction device, reforming for generating in reforming reaction device participates in burning in combustion chamber of the gas by pipeline feeding cylinder.Reforming reaction device is set in the exhaust pipe of cylinder.The present invention is heated using the high-temperature residual heat of motor exhaust as heat source directly to reforming reaction device, has been saved the energy and has been substantially increased the efficiency of combustion of diesel oil after diesel oil and lighter hydrocarbons are reformed, has inhibited engine knock and discharged nitrous oxides.
Description
Technical field
The invention belongs to technical field of engines, be related to a kind of engine for raw material technology, and in particular to a kind of lighter hydrocarbons/
Reforming Diesel Fuel system and reforming method.
Background technique
Under the double action of energy crisis and protection environment, Looking For Substitutions Of Oil and reduction pollutant emission become interior
The heat subject of combustion engine research field.Although simple diesel engine economy is good with respect to gasoline engine very much, with regard to diesel engine itself
For its waste it is also very serious, the imperfect combustion of diesel oil is not only the nitrogen oxides and sulfide of waste its discharge to the energy
It is also the threat to environment.For natural gas engine, frequently with low temperature Lean Burning Technique, to inhibit engine knock and nitrogen oxides
(NOx) it discharges.However excessively high air-fuel ratio will lead to engine fire, unburned hydrocarbon (HC) and carbon monoxide (CO) emission and increase
Add.Existing platform experiment and theoretical research show: hydrogen (H2) is added in natural gas can improve burning velocity shortening flame quenching
Distance improves engine fire problem to realize stable lean burn, to reduce HC, CO and NOx emission.Lighter hydrocarbons/diesel oil
Fuel reforming, which refers to, to be heated using diesel engine high-temp waste gas waste heat to reformer, makes vapor and gasify diesel oil and gasification
In the environment of high-temperature low-pressure, through the catalytic action of catalyst reforming reaction occurs for light-hydrocarbon fuel, generates hydrogen, methane and one
The process of carbonoxide.Reforming method mainly uses ionization method at present, and high-temperature low-pressure reforming process is provided using high voltage electric energy for reaction
Energy, or heated using high temperature resistance silk to reform gas.It not only needs complicated and cumbersome relevant apparatus but also to mention
Carry out the progress of driving a reaction for additional energy, but there are no related complete set of equipments and technologies in the prior art.
Summary of the invention
Technical problem to be solved by the invention is to provide energy caused by a kind of solution diesel engine vent gas excessive discharge temperature
The technical solution of source problem of resource waste.Specifically a kind of lighter hydrocarbons/diesel oil reformation is designed using the high-temperature residual heat of motor exhaust
System and reforming method improve efficiency of combustion, inhibit engine knock and nitrogen oxides (NOx) discharge.
The present invention solve used by above-mentioned particular problem the specific scheme is that
A kind of lighter hydrocarbons/Reforming Diesel Fuel system, it is characterised in that: filled including light-hydrocarbon fuel feedway, diesel fuel supply
It sets, reforming reaction device and gas mixer, the gas mixer is equipped with carrier gas air inlet pipe and vapor air inlet pipe, described
Light-hydrocarbon fuel feedway is for supplying atomization light-hydrocarbon fuel, and for the diesel fuel supply device for supplying atomized diesel fuel, atomization is light
Hydrocarbon fuel and diesel oil are entered by pipeline is formed together mixed gas with carrier gas, vapor in gas mixer, mixed gas into
Enter and carry out reforming reaction in reforming reaction device, the reformation gas generated in the reforming reaction device is sent into engine by pipeline
Burning is participated in the combustion chamber of cylinder.
As an improvement, the reforming reaction device is set in the exhaust pipe of cylinder, protected by diesel tail gas waste heat
Hold reforming reaction required temperature.
As an improvement, the light-hydrocarbon fuel feedway includes passing sequentially through the connected light-hydrocarbon fuel of light-hydrocarbon fuel delivery pipe
Tank, light-hydrocarbon fuel pump, lighter hydrocarbons flow control valve and light-hydrocarbon fuel atomizer, the light-hydrocarbon fuel atomizer exit are connected by pipeline
It is connected in gas mixer.
As an improvement, the diesel fuel supply device include pass sequentially through the connected diesel oil tank of diesel feeding pipe, diesel pump,
Diesel flow control valve and diesel oil atomization device, the diesel oil atomization device outlet are connected in gas mixer by pipeline.
As an improvement, the diesel fuel supply device further includes high pressure fuel feed system, the high pressure fuel feed system
Including diesel supercharging device and fuel injector, the diesel oil in the diesel oil tank also passes through diesel supercharging device and fuel injector is directly sent
Enter and participates in burning in the combustion chamber of cylinder.
As an improvement, the reforming reaction device includes reactor shell, reforming reactor and reforming catalyst, it is described heavy
Whole reactor is cylinder open at one end, and cartridge openings end is connected with the outlet of gas mixer, and cylinder surrounding goes out for honeycomb
Air hole structure, reforming catalyst are coated in the barrel outer surface of reforming reactor, the reactor shell while or heat exchanger tube
Wall.
As an improvement, the reforming catalyst is Pt/CeO2-Al2O3Catalyst, the reactor shell are equipped with heat exchange
Fin.
As an improvement, being equipped with the reflux cylinder for being set in reforming reactor closed end, the reflux in the reactor enclosure body
The gap that gas supply stream passes through is equipped between cylinder and reforming reactor and between reflux cylinder and reactor shell.
The present invention also provides a kind of lighter hydrocarbons/Reforming Diesel Fuel methods, which comprises the following steps:
Step 1, light-hydrocarbon fuel enter gas mixer after being atomized by light-hydrocarbon fuel feedway；
Step 2, diesel oil enter gas mixer after being atomized by diesel fuel supply device；
Step 3, carrier gas and vapor pass through air inlet pipe respectively and enter gas mixer；
Step 4, carrier gas carry vapor and atomization light-hydrocarbon fuel fuel and diesel oil enters in reforming reaction device, are reforming
Reaction obtains reforming gas under catalyst, reforms gas and enters participation burning in the combustion chamber of cylinder；
Step 5, the reforming reaction device are set in the exhaust pipe of cylinder, are heated and are tieed up by diesel tail gas waste heat
Prudent whole reaction temperature.
As an improvement, the carrier gas is inert gas, the reforming catalyst is Pt/CeO2-Al2O3Catalyst.
Reforming method mainly uses ionization method at present, and high-temperature low-pressure reforming process provides energy using high voltage electric energy for reaction,
Or it is heated using high temperature resistance silk to reform gas.It not only needs complicated and cumbersome relevant apparatus but also also provides additional
Energy carry out the progress of driving a reaction, the present invention directly gives reforming reaction device using engine high-temperature waste gas residual heat as heat source
It is heated to condition required for reforming reaction occurs.
The present invention has the advantage that compared to more existing reforming technique
1, using the chemical reaction advantage of light-hydrocarbon fuel and diesel oil, a kind of engine lighter hydrocarbons/Reforming Diesel Fuel system is provided
System.The present invention directly engine fuel can be occurred with light-hydrocarbon fuel, vapor using the high-temperature tail gas waste heat of engine a variety of
Reforming reaction (including steam reforming, partial oxidative steam reforming, water gas shift reaction etc.), which generates, is rich in H2, CO reformation gas,
Reduce Resistant heating link, that is, reduce costs the exhaust gas temperature being greatly reduced in exhaust pipe, to reduce nitrogen
The generation of oxide and the discharge of carbon monoxide, alleviate the pollution to natural environment.
2, being designed and optimizing to reformation reaction unit makes full use of the reaction mechanism of fuel to carry out reforming reaction design.
The present invention generates H using light-hydrocarbon fuel and diesel oil and vapor preparing hydrogen by mixing gas2It is high-efficient, realize online hydrogen making；
3, the ingenious setting in terms of each device with connect, adequately apply fuel supply device and other three big devices
Reforming reaction is carried out, the high-temperature residual heat of motor exhaust is made full use of to be heated to reaction unit is reformed to reach reforming reaction
Temperature condition required for occurring, avoids providing additional fuel storage or hydrogen storage tank, improve safety and
The volume for reducing whole system reduces the load of engine, is both to reduce burning cost again to the utilization of exhaust gas resource
And manufacturing cost.
Detailed description of the invention
Fig. 1 is lighter hydrocarbons of the invention/Reforming Diesel Fuel system structural schematic diagram.
Fig. 2 is the structural schematic diagram of reforming reaction device of the invention.
In figure: 1- diesel engine vent gas, 2- gas mixer, 3- vapor, 4- inert gas Ar, 5- are atomized light-hydrocarbon fuel,
6- reforming reaction device, 7- atomized diesel fuel, 8- diesel oil atomization device, 9- exhaust pipe, 10- light-hydrocarbon fuel atomizer, 11- diesel oil
Flow control valve, 12- lighter hydrocarbons flow control valve, 13- light-hydrocarbon fuel pump, 14- light-hydrocarbon fuel tank, 15- diesel oil, 16- diesel pump,
17- reforms gas, 18- diesel oil tank, 19- diesel supercharging device, 20- fuel injector, 21- exhaust valve, 22- inlet valve, 23- burning
Room, 24- cylinder, 25- mixed gas, 26- reforming reactor, 27- reactor shell, 28- reforming catalyst, 29- reflux cylinder,
30- temperature compensator.
Specific embodiment
As shown in Figure 1, light-hydrocarbon fuel reforming system of the invention include light-hydrocarbon fuel feedway, diesel fuel supply device,
Reforming reaction device 6, gas mixer 2.Gas mixer 2 is arranged after light-hydrocarbon fuel feedway, reforming reaction device 6
It is arranged after gas mixer 2, diesel fuel supply device is arranged in 15 engine of diesel oil, and diesel engine vent gas 1 is from exhaust valve 21
It is drained into after exhaust pipe 9 is heated to reforming reaction device 6 and is drained into atmosphere, the engine exhaust temperature meeting under different operating conditions
It is different, therefore it is internally provided with temperature compensator 30 in reforming reaction device 6 to meet the reaction temperature under different operating conditions,
Occur that reforming reaction normally.
Light-hydrocarbon fuel feedway includes light-hydrocarbon fuel tank 14, light-hydrocarbon fuel pump 13, lighter hydrocarbons flow control valve 12 and lighter hydrocarbons
Fuel atomizer 10, light-hydrocarbon fuel tank 14, light-hydrocarbon fuel pump 13, lighter hydrocarbons flow control valve 12 and light-hydrocarbon fuel atomizer 10 are successively
It is connected by light-hydrocarbon fuel delivery pipe.Light-hydrocarbon fuel feedway provides atomization light-hydrocarbon fuel 5, lighter hydrocarbons combustion to gas mixer 2
Light-hydrocarbon fuel pump 13 and lighter hydrocarbons flow control valve 12 are equipped with after batch can 14, light-hydrocarbon fuel atomizer 10 is mounted on light-hydrocarbon fuel pump 13
Later, atomization light-hydrocarbon fuel 5 is transported in gas mixer 2 by light-hydrocarbon fuel delivery pipe.Light-hydrocarbon fuel atomizer 10 and gas
First air inlet pipe of body mixer 2 is connected to.
2 one end of gas mixer is fixedly installed second air inlet pipe being connected with diesel oil tank 18, second air inlet
Pipe is equipped with diesel oil atomization device 8, and a small amount of atomized diesel fuel 7 can be passed through to gas mixer 2 by diesel oil atomization device 8.Gas is mixed
2 other end of clutch is respectively equipped with third branch air inlet pipe and the 4th air inlet pipe, third branch air inlet pipe and the 4th air inlet pipe difference
For 4 air inlet pipe of 3 air inlet pipe of vapor and inert gas Ar.
Diesel fuel supply device includes diesel oil tank 18, high pressure fuel feed system, fuel injector 20, diesel pump 16, diesel stream
15 gasifier of control valve 11 and diesel oil, diesel pump 16 pass sequentially through pipeline with diesel flow control valve 11 and are connected setting in diesel oil
18 top of fuel tank, diesel flow control valve 11 are equipped with diesel oil atomization device 8 later.The excessively high compression ignition of diesel oil a-road-through of diesel oil tank 18
Oily feed system is directly fed to the combustion chamber 23 of cylinder 24, and another way is entered by diesel pump 16 and diesel flow control valve 11
Diesel oil atomization device 8, and then enter in gas mixer 2, the high pressure fuel feed system includes diesel supercharging device 19 and spray
Oily device 20, diesel supercharging device 19 can pump for diesel supercharging in the present embodiment, and the diesel oil 15 in diesel oil tank 18 passes through diesel oil
After booster pump pressurization, the combustion chamber 23 of cylinder 24 is sprayed into through fuel injector 20, participates in burning.
As shown in Fig. 2, reforming reaction device 6 includes reforming reactor 26, reactor shell 27, reforming catalyst 28 and returns
Flow cartridge 29, the effect of reforming reaction device 6 are to generate to reform gas 17, the entrance of reforming reaction device 6 and going out for gas mixer 2
Mouth is connected, and mixed gas enters inside reforming reaction device 6, is urged on reforming reactor 26 using waste gas residual heat and reformation
Agent 28 occurs reforming reaction and generates reformation gas 17, reforms gas 17 and comes out from the venthole of reforming reactor 26 by reflux cylinder 29
It after baffling, is sufficiently reacted with the reforming catalyst 28 on 26 surface of reforming reactor, reflux 29 open end of cylinder is finally crossed, from reflux
Gap is output to cylinder 24 and participates in burning between cylinder 29 and reactor shell 27.Reforming reaction device 6 is integrally provided in tail gas row
Inside tracheae 9, reactor shell 27 simultaneously be also heat exchange tube wall, in order to directly utilize high-temp waste gas to reforming reactor 26 into
To reach mixed gas temperature and pressure required for reforming reaction occurs for row heating, and temperature is equipped in reforming reaction device 6
Compensator 30, temperature compensator 30 includes auxiliary heater and temperature sensor, when motor exhaust preheats deficiency, Ke Yitong
It crosses auxiliary heater and heats maintaining reaction temperature to reforming reactor 26, the temperature sensor is for monitoring reforming reactor 26
Interior temperature, and auxiliary heater is started by controller, to meet 26 internal temperature of reforming reactor under different operating conditions, make weight
Whole 26 internal temperature of reactor, which maintains 400 DEG C or more, occurs that reforming reaction normally.In the embodiment of the present invention, reforming reactor
26 be cylinder open at one end, and cartridge openings end is connected with the outlet of gas mixer 2, and cylinder surrounding is honeycomb venthole knot
Structure, reforming catalyst 28 are coated in the barrel outer surface of reforming reactor, and the reflux cylinder is also cylinder open at one end, reflux
The internal diameter of cylinder is greater than the outer diameter of reforming reactor 26, and the cylinder that will flow back is set in the closed end of reforming reactor 26, mixed gas from
The honeycomb hole of reforming reactor 26, which contacts after coming out with reforming catalyst 28, occurs reforming reaction, is formed and reforms gas, reforms gas and touches
It can not directly send out, be come out particularly near 26 closed end of reforming reactor mixed from the outlet of reforming reaction device to reflux cylinder set
Gas is closed, by the effect of reflux cylinder baffling along reflux cylinder opening end motion, is effectively increased and reforms gas and reforming catalyst
28 times of contact improved reforming reaction efficiency, and air-flow passes through gap between reflux cylinder outside and reactor shell inside later
Flow to the outlet of whole reaction unit.
The outlet tail end of reforming reaction device 6 is communicated with the inlet valve 22 of 15 machine of diesel oil, the exhaust valve 21 and tail of cylinder 24
Gas exhaust pipe 9 communicates, and is surrounded outside reforming reactor 26 by heat exchange tube wall, and by flowing back, cylinder 29 makes reaction and heat exchange more
Sufficiently.
Light-hydrocarbon fuel reforming method of the invention, comprising the following steps:
One, light-hydrocarbon fuel is from light-hydrocarbon fuel tank 14 through light-hydrocarbon fuel pump 13, and lighter hydrocarbons flow control valve 12 is with the stream of 0.2L/h
Speed enters light-hydrocarbon fuel atomizer 10 and generates atomization light-hydrocarbon fuel 5, and then enters in gas mixer 2.
Two, from 18 1 tunnel of diesel oil tank through diesel pump 16, diesel flow control valve 11 is entered diesel oil 15 with the flow velocity of 1L/h
Diesel oil atomization device 8 generates atomized diesel fuel 7, and then enters in gas mixer 2.Another way passes through the spray of high pressure fuel feed system
Oily device 20 sprays into cylinder 24 and provides diesel oil 15 for 15 machine of diesel oil.
Three, enough vapor 3 is passed through from another charge pipe of gas mixer 2.
Four, the diesel engine vent gas 1 that temperature is up to 550 degrees Celsius is discharged by exhaust pipe 9, is given using its high-temperature residual heat
Reforming reactor 26 is heated to reach required for reforming reaction 400 DEG C of temperature or so.Reforming reactor 26 is mended equipped with temperature
Device 30 is repaid, temperature compensator 30 includes auxiliary heater and temperature sensor, to meet the reforming reactor 26 under different operating conditions
Internal temperature, so that 26 internal temperature of reforming reactor is maintained 400 DEG C or more occurs that reforming reaction normally.
Five, it is passed through suitable inert gas Ar 4 from the uppermost charge pipe of gas mixer 2, it is all mixed to push
It closes gas to move downwardly into reforming reaction device 6, inert gas Ar 4, vapor 3, atomized diesel fuel 7 and atomization lighter hydrocarbons
Fuel 5 forms mixed gas 25.
Six, light-hydrocarbon fuel 5, inert gas Ar 4, atomized diesel fuel 7 and the mixed gas 25 of the formation of vapor 3 are atomized in weight
High temperature and reforming catalyst Pt/CeO in whole reaction unit 62-Al2O3Under the action of reforming reaction, reforming reaction occurs are as follows: water steam
Gas 3+ atomization light-hydrocarbon fuel 5+ atomized diesel fuel 7 generates hydrogen, carbon monoxide under 400 DEG C of high temperature and under the action of catalyst
And the reformation gas 17 of methane.
Seven, the reforming reaction of the present apparatus mainly includes coupling steam reformation and self-heating recapitalization.Coupling steam reforms generation
Chemical equation are as follows: CHx+ diesel oil+H2O=CH4+CO(g)+H2, CH4 (g)+H2O (g)=CO (g)+3H2(g) this reaction hair
Raw 26 surface of reforming reactor in reforming reaction device, condition is high temperature.Self-heating recapitalization is that diesel oil and lighter hydrocarbons and oxygen are sent out
Raw its chemical equation that reacts is CHx+ diesel oil+O2=CO+H2O+H2, this reaction also carry out inside reforming reaction device 6, hair
Raw condition is high temperature.
Eight, it reforms gas 17 to be delivered directly to cylinder 24 and participate in the burning in cylinder 24, the diesel engine vent gas 1 after burning is logical
It crosses exhaust outlet and enters exhaust pipe 9, heated using its high-temperature residual heat to reforming reactor 26 to reach needed for reforming reaction
The temperature wanted.
Nine, above step is recycled.
Claims (10)
1. a kind of lighter hydrocarbons/Reforming Diesel Fuel system, it is characterised in that: including light-hydrocarbon fuel feedway, diesel fuel supply device,
Reforming reaction device and gas mixer, the gas mixer is equipped with carrier gas air inlet pipe and vapor air inlet pipe, described light
Hydrocarbon fuel feedway is atomized lighter hydrocarbons for supplying atomized diesel fuel for supplying atomization light-hydrocarbon fuel, the diesel fuel supply device
Fuel and diesel oil are entered by pipeline is formed together mixed gas with carrier gas, vapor in gas mixer, mixed gas enters
Reforming reaction is carried out in reforming reaction device, the reformation gas generated in the reforming reaction device is sent into engine air by pipeline
Burning is participated in the combustion chamber of cylinder.
2. lighter hydrocarbons as described in claim 1/Reforming Diesel Fuel system, it is characterised in that: the reforming reaction device is set to gas
In the exhaust pipe of cylinder, reforming reaction required temperature is kept by diesel tail gas waste heat.
3. lighter hydrocarbons as claimed in claim 2/Reforming Diesel Fuel system, it is characterised in that: the light-hydrocarbon fuel feedway packet
It includes and passes sequentially through the connected light-hydrocarbon fuel tank of light-hydrocarbon fuel delivery pipe, light-hydrocarbon fuel pump, lighter hydrocarbons flow control valve and light-hydrocarbon fuel
Atomizer, the light-hydrocarbon fuel atomizer exit are connected in gas mixer by pipeline.
4. lighter hydrocarbons as claimed in claim 2/Reforming Diesel Fuel system, it is characterised in that: the diesel fuel supply device include according to
Secondary diesel oil tank, diesel pump, diesel flow control valve and the diesel oil atomization device being connected by diesel feeding pipe, the diesel oil atomization
Device outlet is connected in gas mixer by pipeline.
5. lighter hydrocarbons as claimed in claim 4/Reforming Diesel Fuel system, it is characterised in that: the diesel fuel supply device further includes
High pressure fuel feed system, the high pressure fuel feed system include diesel supercharging device and fuel injector, in the diesel oil tank
Diesel oil also pass through diesel supercharging device and fuel injector is sent directly into the combustion chamber of cylinder and participates in burning.
6. lighter hydrocarbons/Reforming Diesel Fuel system as described in claim 2 to 5 any one, it is characterised in that: the reforming reaction
Device includes reactor shell, reforming reactor and reforming catalyst, and the reforming reactor is cylinder open at one end, cylinder
Open end is connected with the outlet of gas mixer, and cylinder surrounding is honeycomb air outlet hole structure, and reforming catalyst, which is coated in, to be reformed
The barrel outer surface of reactor, the reactor shell while or heat exchange tube wall.
7. lighter hydrocarbons as claimed in claim 6/Reforming Diesel Fuel system, it is characterised in that: the reforming catalyst is Pt/CeO2-
Al2O3Catalyst, the reactor shell are equipped with heat exchange fin.
8. lighter hydrocarbons as claimed in claim 6/Reforming Diesel Fuel system, it is characterised in that: be equipped with set in the reactor enclosure body
It is located at the reflux cylinder of reforming reactor closed end, between reflux cylinder and the reforming reactor and reflux cylinder and reactor shell
Between be equipped with the gap that passes through of gas supply stream.
9. a kind of lighter hydrocarbons/Reforming Diesel Fuel method, which comprises the following steps:
Step 1, light-hydrocarbon fuel enter gas mixer after being atomized by light-hydrocarbon fuel feedway；
Step 2, diesel oil enter gas mixer after being atomized by diesel fuel supply device；
Step 3, carrier gas and vapor pass through air inlet pipe respectively and enter gas mixer；
Step 4, carrier gas carry vapor and atomization light-hydrocarbon fuel fuel and diesel oil enters in reforming reaction device, in Reforming catalyst
Reaction obtains reforming gas under agent, reforms gas and enters participation burning in the combustion chamber of cylinder；
Step 5, the reforming reaction device are set in the exhaust pipe of cylinder, are heated by diesel tail gas waste heat and are maintained weight
Whole reaction temperature.
10. lighter hydrocarbons as claimed in claim 9/Reforming Diesel Fuel method, it is characterised in that: the carrier gas is inert gas, institute
Stating the reforming catalyst is Pt/CeO2-Al2O3Catalyst.
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