CN114941594A - Motor vehicle fuel catalytic converter, method for the production thereof and use thereof - Google Patents
Motor vehicle fuel catalytic converter, method for the production thereof and use thereof Download PDFInfo
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- CN114941594A CN114941594A CN202210603929.8A CN202210603929A CN114941594A CN 114941594 A CN114941594 A CN 114941594A CN 202210603929 A CN202210603929 A CN 202210603929A CN 114941594 A CN114941594 A CN 114941594A
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- 239000000446 fuel Substances 0.000 title claims abstract description 96
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 230000003197 catalytic effect Effects 0.000 title description 20
- 238000000034 method Methods 0.000 title description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 78
- 239000003054 catalyst Substances 0.000 claims abstract description 69
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 50
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 49
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 17
- 231100000719 pollutant Toxicity 0.000 claims abstract description 17
- 239000002828 fuel tank Substances 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 63
- 239000003921 oil Substances 0.000 claims description 39
- 239000004575 stone Substances 0.000 claims description 35
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 22
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 15
- 239000005995 Aluminium silicate Substances 0.000 claims description 14
- 235000012211 aluminium silicate Nutrition 0.000 claims description 14
- 239000006255 coating slurry Substances 0.000 claims description 14
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 14
- 229940070527 tourmaline Drugs 0.000 claims description 14
- 229910052613 tourmaline Inorganic materials 0.000 claims description 14
- 239000011032 tourmaline Substances 0.000 claims description 14
- 239000012752 auxiliary agent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 10
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 9
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000007598 dipping method Methods 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 5
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 5
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims description 5
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims description 5
- 229910001954 samarium oxide Inorganic materials 0.000 claims description 5
- 229940075630 samarium oxide Drugs 0.000 claims description 5
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 229910001940 europium oxide Inorganic materials 0.000 claims description 3
- 229940075616 europium oxide Drugs 0.000 claims description 3
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 claims description 3
- 229910001938 gadolinium oxide Inorganic materials 0.000 claims description 3
- 229940075613 gadolinium oxide Drugs 0.000 claims description 3
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 229910003451 terbium oxide Inorganic materials 0.000 claims description 3
- SCRZPWWVSXWCMC-UHFFFAOYSA-N terbium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Tb+3].[Tb+3] SCRZPWWVSXWCMC-UHFFFAOYSA-N 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 description 18
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 239000003502 gasoline Substances 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F02M27/02—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a motor vehicle fuel catalyst and a production method and application thereof. The motor vehicle fuel catalyst is disposed on a pipe between a fuel tank and an engine of a motor vehicle, and includes: the device comprises a shell, an oil pipe, a rare earth ceramic ball and a magnet device; the rare earth ceramic balls and the magnet device are accommodated in the shell, and a part of the oil pipe is arranged in the shell; the rare earth ceramic balls are located outside the oil pipe and are arranged not to contact motor vehicle fuel inside the oil pipe. The motor vehicle fuel catalyst of the invention can reduce the pollutant discharge amount.
Description
Technical Field
The invention relates to a motor vehicle fuel catalytic converter, a production method and application thereof.
Background
Motor vehicle exhaust contains a large amount of harmful gases including carbon monoxide, hydrocarbons, nitrogen oxides and suspended particles. Gasoline vehicles use gasoline as a fuel. The gasoline directly enters into the engine to be directly burnt in the absence of oxygen. This results in insufficient combustion, large gasoline consumption, large exhaust emissions, and the like. Gasoline vehicles are mainly based on three pollutants, namely carbon monoxide, hydrocarbons and nitrogen oxides. In order to make the tail gas reach the national emission standard, motor vehicle manufacturers mainly remove the tail gas by additionally arranging an expensive post-treatment system at a tail gas outlet so as to meet the emission requirement. With the stricter exhaust emission standards, the price of the post-treatment system is greatly increased, and great exhaust treatment difficulty and cost pressure are brought to motor vehicle enterprises.
CN105396543A discloses a fuel oil catalyst containing a honeycomb catalyst as a fuel oil catalyst core, wherein fuel oil is shunted through a flow channel on a honeycomb catalyst carrier coated with active substances such as rare earth oxide, aluminum oxide and titanium oxide, and the fuel oil is fully contacted with the fuel oil catalyst, so as to refine fuel oil molecules and improve fuel oil activity. However, after the fuel oil catalyst is soaked in fuel oil for a long time, the active powder coated on the surface of the honeycomb catalyst is easy to fall off and pollute the fuel oil, and the service life of the catalyst needs to be further prolonged.
CN106861560A discloses a fuel catalyst and a fuel catalyst, through contacting the fuel catalyst that constitutes with the cooperation of tombarthite microballon, tuo malin microballon and medical stone microballon, not only can adsorb the poisonous and harmful substance in the fuel, but also can activate the fuel molecule, make the fuel molecule more abundant with the contact of oxygen to effectively improve the combustion efficiency of fuel, nevertheless this fuel catalyst makes the fuel muddy gradually after the long-time hot dipping of fuel, and fuel efficiency also reduces thereupon.
CN109488492A discloses a fuel oil catalytic converter containing energy sheets and permanent magnets, which can make fuel oil burn and burn fully in a small molecule state under the action of strong magnetism, thus reducing the pollution of the emissions of the engine to the environment, effectively saving fuel oil energy and protecting the environment. However, the strong magnet can also be demagnetized to different degrees after being soaked in the fuel oil at the temperature of 80 ℃ for a long time, thereby reducing the whole service life of the fuel oil catalyst.
CN205605337U discloses fuel efficiency catalyst converter, including the casing, both ends all are fixed with the closing cap about the casing, and one side closing cap outer joint has the joint, and the casing is inside to be equipped with two screens, is equipped with catalyst granule and far infrared granule between two screens. The catalyst particles of the fuel oil energy efficiency catalyst still need to be in contact with fuel oil, so that the service life of the fuel oil catalyst is easily shortened, and the catalytic performance still needs to be improved.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a motor vehicle fuel catalyst, which utilizes the synergistic magnetic catalysis of a magnet and a rare earth ceramic ball to fully combust fuel, reduce oil consumption, and reduce the emission of pollutants in exhaust gas. It is another object of the present invention to provide a method of producing the above automotive fuel catalyst. It is a further object of the present invention to provide the use of the above-described automotive fuel catalyst. The invention achieves the above purpose through the following technical scheme.
In one aspect, the present invention provides a motor vehicle fuel catalyst disposed on a pipe between a fuel tank and an engine of a motor vehicle, the motor vehicle fuel catalyst comprising: the device comprises a shell, an oil pipe, a rare earth ceramic ball and a magnet device;
the rare earth ceramic balls and the magnet device are accommodated in the shell, and a part of the oil pipe is arranged in the shell;
the rare earth ceramic balls are located outside the oil tube and are arranged so as not to contact motor vehicle fuel inside the oil tube.
According to the fuel catalyst for the motor vehicle of the present invention, preferably, the magnet device includes a magnet having a magnetic energy product of 20MGOe or more.
According to the automotive fuel catalyst of the present invention, preferably, the magnet device further comprises a magnetic shield; the magnetic shield is attached to the inner wall of the shell, and the magnet is attached to the magnetic shield.
According to the fuel catalyst for an automobile of the present invention, preferably, the oil pipe includes a connection portion and a U-shaped pipe portion; the U-shaped pipe part is accommodated in the magnet device and is formed by connecting a plurality of U-shaped pipes; the connecting part extends out of the shell and is connected with the oil tank and the engine.
According to the motor vehicle fuel catalyst, the diameter of the rare earth ceramic ball is preferably 0.3-2.0 cm; the rare earth ceramic balls are distributed in gaps among the plurality of U-shaped tubes and in gaps between the U-shaped tube parts and the magnet device.
According to the automotive fuel catalyst of the present invention, preferably, the rare earth ceramic ball comprises a ceramic ball body and a coating layer; the ceramic ball body is formed by one or more of medical stone powder, tourmaline powder or kaolin powder; the coating is formed by a mixture comprising rare earth oxide and medical stone powder.
According to the automotive fuel catalyst of the present invention, preferably:
the ceramic ball body is formed by 30-40: 40-60: 10-20 parts by weight of medical stone powder, tourmaline powder and kaolin powder;
the weight ratio of the rare earth oxide to the medical stone powder in the mixture is 1.8-2.2: 1, and the rare earth oxide is selected from at least two of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide and yttrium oxide.
According to the motor vehicle fuel catalyst, preferably, the mixture further comprises an auxiliary agent, wherein the auxiliary agent is selected from one of silica sol, aluminum sol and glutinous rice glue; based on 100 parts by weight of rare earth oxide and medical stone powder, the using amount of the auxiliary agent is 2-7 parts by weight.
In another aspect, the present invention also provides a method of producing an automotive fuel catalyst as described above, comprising the steps of:
mixing medical stone powder, tourmaline powder, kaolin powder and water to form slurry, rolling the slurry into balls by using a ball rolling machine, drying the balls at 100-170 ℃, and roasting the balls at 1100-1400 ℃ to obtain ceramic ball bodies;
mixing rare earth oxide, medical stone powder, an auxiliary agent and water to obtain coating slurry;
dipping the ceramic ball body in the coating slurry for 15-35 min, then drying at 105-160 ℃, and roasting at 1050-1300 ℃ to obtain a prefabricated ceramic ball; repeating the steps to obtain the rare earth ceramic ball;
the oil tube, rare earth ceramic ball and magnet assembly are assembled with a housing to form a motor vehicle fuel catalyst.
In a further aspect, the invention also provides the use of an automotive fuel catalyst as described above for reducing the amount of emissions and fuel consumption of automotive exhaust pollutants.
The motor vehicle fuel catalyst of the invention utilizes the synergistic magnetic catalysis of the magnet and the rare earth ceramic ball, can fully burn fuel, reduce the fuel consumption by more than 17%, preferably by more than 20%, and remarkably reduce the content of pollutants such as carbon monoxide, hydrocarbon, nitrogen oxide and the like in tail gas, thereby reducing the emission of pollutants. Furthermore, the magnetic catalytic material (rare earth ceramic ball) of the motor vehicle fuel catalytic converter is not directly contacted with the motor vehicle fuel, so that fuel pollution and pipeline blockage can not be caused.
Drawings
FIG. 1 is a schematic view of a fuel catalyst for a motor vehicle according to the present invention.
The reference numerals are detailed below:
1-shell, 2-oil pipe, 3-rare earth ceramic ball, 4-magnet device, 41-magnet, and 42-magnetic shield.
Detailed Description
The present invention will be further described with reference to specific examples, but the scope of the present invention is not limited thereto.
The motor vehicle fuel of the invention comprises diesel oil, gasoline, preferably gasoline.
< Motor vehicle Fuel catalyst >
The motor vehicle fuel catalyst is arranged on a pipeline between an oil tank and an engine of a motor vehicle and is used for improving the fuel combustion efficiency of the motor vehicle and reducing the fuel consumption of the motor vehicle. In addition, the motor vehicle fuel catalyst can reduce the emission of motor vehicle exhaust pollutants. The motor vehicle fuel catalyst of the present invention comprises: shell, oil pipe, tombarthite ceramic ball and magnet device. As described in detail below.
Outer cover
The housing of the present invention is used to house the magnet assembly and the rare earth ceramic balls. A portion of the tubing is disposed within the housing.
The housing of the present invention may be a rectangular parallelepiped structure. The material may be stainless steel. The length of the shell can be 6-15 cm, the width can be 3-9 cm, and the height can be 6-19 cm. According to one embodiment of the invention, the dimensions of the housing are: the length is 12cm, the width is 7cm and the height is 14 cm.
Magnet device
The magnet device of the present invention includes a magnet and a magnetic shield. The magnetic shield is attached to the inner wall of the shell, and the magnet is attached to the magnetic shield. A magnetic shield is disposed between the magnet and the housing.
The magnetic shield is used for protecting the magnet and keeping the magnetic performance of the magnet. The magnetic shield can be formed by one or more of iron-nickel alloy and electromagnetic shielding cloth. In certain specific embodiments, the magnetic shield can be formed from a material including iron-nickel alloy and electromagnetic shielding cloth.
The invention finds that the magnetic energy product has important influence on the catalytic effect of the motor vehicle fuel catalytic converter. The magnetic energy product of the magnet is 20MGOe or more, preferably 24MGOe or more, and more preferably 24 to 50 MGOe. The invention discovers that the magnetic energy product of the magnet is lower than 20MGOe, so that the catalytic effect of a fuel catalytic converter of a motor vehicle cannot be exerted, the discharge amount of tail gas pollutants is higher, and the oil consumption is not obviously reduced; the magnetic energy product of the magnet is higher than 50MGOe, resulting in an increase in manufacturing cost. The demagnetizing temperature of the magnet is more than 180 ℃. Thus, the catalytic performance of the motor vehicle fuel catalytic converter is improved, and the combustion efficiency of the motor vehicle fuel is improved.
Oil pipe
The fuel pipe of the invention is used for fuel of motor vehicles to pass through. The oil pipe comprises a connecting part and a U-shaped pipe part. The main part of the U-shaped tube portion is accommodated within the magnet device. The U-shaped pipe part is formed by connecting a plurality of U-shaped pipes. These U-tubes are housed within the magnet arrangement. The connecting part extends out of the shell and can be connected with the oil tank and the engine.
The oil pipe can be made of stainless steel. The inner diameter of the oil pipe can be 8-15 mm, preferably 9-13 mm, and more preferably 9-11 mm.
Rare earth ceramic ball
The rare earth ceramic ball is positioned outside the oil pipe. The rare earth ceramic balls are distributed in gaps among the plurality of U-shaped tubes and in gaps between the U-shaped tube portions and the magnet device. Thus, the rare earth ceramic ball is not contacted with the motor vehicle fuel in the oil pipe.
The invention can realize the purposes of reducing oil consumption and remarkably reducing pollutant discharge by utilizing the synergistic magnetic catalysis of the magnet and the rare earth ceramic ball. Without the magnet, the rare earth ceramic ball is essentially unable to exert a catalytic effect without contacting the motor vehicle fuel. Without the rare earth ceramic balls, the magnetic field of the magnets would not be sufficient to fuel an automotive vehicle.
The diameter of the rare earth ceramic ball can be 0.3-2.0 cm, preferably 0.5-1.5 cm, and more preferably 0.5-1.0 cm.
The rare earth ceramic ball comprises a ceramic ball body and a coating.
The ceramic ball body is formed by one or more of medical stone powder, tourmaline powder or kaolin powder. Preferably, the ceramic ball body is formed of medical stone powder, tourmaline powder and kaolin powder. The weight ratio of the medical stone powder to the tourmaline powder to the kaolin powder is 30-40: 40-60: 10-20. According to a preferred embodiment of the present invention, the weight ratio of the medical stone powder, the tourmaline powder and the kaolin powder is 33-40: 45-60: 13-18. According to a more preferred embodiment of the present invention, the weight ratio of the medical stone powder, the tourmaline powder and the kaolin powder is 33 to 37:45 to 55:14 to 16. Thus being beneficial to improving the catalytic effect of the rare earth ceramic ball.
The coating is formed by a mixture comprising rare earth oxide and medical stone powder. In the mixture, the mass ratio of the rare earth oxide to the medical stone powder is 1.8-2.2: 1; preferably 1.9-2.2: 1, and more preferably 1.9-2.1: 1. The rare earth oxide is at least two selected from lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide and yttrium oxide. Preferably, the rare earth oxide is selected from at least two of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, and yttrium oxide. More preferably, the rare earth oxide is selected from two or three of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide. In certain embodiments, the coating is formed from a mixture of lanthanum oxide, cerium oxide and medical stone powder. The weight ratio of the lanthanum oxide to the cerium oxide to the medical stone powder is 1-3: 1-3; preferably 1 to 2:1 to 2, more preferably 1 to 1.5:1 to 1.5. Thus being beneficial to improving the catalytic effect of the rare earth ceramic ball.
In certain embodiments, the coating is formed from a mixture comprising rare earth oxides, medical stone powder and an adjuvant. The auxiliary agent is selected from one of silica sol, aluminum sol and glutinous rice glue. Preferably, the auxiliary agent is selected from silica sol or aluminum sol. More preferably, the auxiliary agent is a silica sol. In the mixture, the mass ratio of the rare earth oxide to the medical stone powder is 1.8-2.2: 1; preferably 1.9-2.2: 1, and more preferably 1.9-2.1: 1. The ratio of the weight of the auxiliary agent to the sum of the weight of the rare earth oxide and the medical stone powder is 2-7: 100, preferably 3-6: 100, and more preferably 3.5-5.5: 100. The invention discovers that the rare earth ceramic ball is more beneficial to improving the catalytic effect and reducing the pollutant discharge amount of tail gas.
< method for producing Fuel catalyst for automobile >
The present invention also provides a method of producing an automotive fuel catalyst as described above, comprising the steps of: (1) preparing a ceramic ball body; (2) preparing coating slurry; (3) a coating layer forming step; (4) and (3) assembling the fuel catalyst of the motor vehicle. As described in detail below.
Preparation steps of ceramic ball body
Mixing medical stone powder, tourmaline powder and kaolin powder with water to form slurry; rolling the ceramic ball body into a ball body by using a ball rolling machine, drying at 100-170 ℃, and roasting at 1100-1400 ℃ to obtain the ceramic ball body.
The weight ratios of the medical stone powder, the tourmaline powder and the kaolin powder are as described above, and are not described herein. The water may be deionized, purified or distilled, preferably deionized. The amount of water to be used is not particularly limited as long as it can be rolled into a sphere by a ball rolling machine.
The drying temperature may be 100 to 170 ℃, preferably 100 to 160 ℃, and more preferably 110 to 150 ℃. The drying time can be 8-20 h, preferably 9-16 h, and more preferably 10-14 h. The roasting temperature can be 1100-1400 ℃, preferably 1100-1300 ℃, and more preferably 1150-1250 ℃. The roasting time can be 6-12 h, preferably 7-10 h, and more preferably 7.5-9 h. Thus being beneficial to improving the strength of the rare earth ceramic ball.
Preparation step of coating slurry
Mixing the rare earth oxide, the medical stone powder, the auxiliary agent and water to obtain coating slurry. Preferably, the rare earth oxide and the medical stone powder are mixed, then the auxiliary agent is added and mixed, and then the mixture is mixed with water to obtain coating slurry. The amounts of the rare earth oxide, the medical stone powder and the auxiliary agent are as described above, and are not described herein. The solid content of the coating slurry is 25 to 35 wt%, preferably 27 to 35 wt%, and more preferably 27 to 32 wt%.
Coating layer formation step
And dipping the ceramic ball body in the coating slurry for 15-35 min, then drying at 105-160 ℃, and roasting at 1050-1300 ℃ to obtain the prefabricated ceramic ball. Repeating the steps until the rare earth ceramic ball is formed.
The ceramic ball body is completely immersed in the coating slurry. The dipping time can be 15-35 min, preferably 20-35 min, and more preferably 25-32 min.
And drying and roasting the dipped spheres. The drying temperature may be 105 to 160 ℃, preferably 105 to 140 ℃, and more preferably 110 to 130 ℃. The drying time can be 9-20 h, preferably 10-16 h, and more preferably 11-13 h. The roasting temperature can be 1050-1300 ℃, preferably 1100-1300 ℃, and more preferably 1170-1250 ℃. The roasting time can be 6-12 h, preferably 7-10 h, and more preferably 7.5-8.5 h.
And (4) repeatedly dipping, drying and roasting the prefabricated ceramic balls to obtain the rare earth ceramic balls. The number of repetitions is 2 to 5. According to one embodiment of the invention, the number of repetitions is 2.
Assembly procedure of a fuel catalyst for motor vehicles
The oil tube, rare earth ceramic ball and magnet assembly are assembled with a housing to form a motor vehicle fuel catalyst. The magnet device can be arranged in the shell firstly, so that the magnetic shield is attached to the inner wall of the shell, and the magnet is attached to the magnetic shield; then arranging an oil pipe, enabling a connecting part of the oil pipe to extend out of the shell, and enabling the U-shaped pipe to be located in the shell; and then uniformly distributing the rare earth ceramic balls in gaps among the plurality of U-shaped pipes and gaps between the U-shaped pipe parts and the magnet device.
< use of Fuel catalyst for Motor vehicle >
The invention also provides the use of the motor vehicle fuel catalyst as described above in reducing motor vehicle exhaust pollutant emissions and fuel consumption. The motor vehicle is preferably a gasoline vehicle. The motor vehicle fuel catalyst of the invention can fully burn gasoline, reduce the oil consumption by more than 17%, preferably by more than 20%, and remarkably reduce the pollutant discharge amount of tail gas.
Preparation example 1
(1) Preparing a ceramic ball body: mixing 35 parts by weight of medical stone powder, 50 parts by weight of tourmaline powder and 15 parts by weight of kaolin powder, and then mixing with deionized water to obtain slurry; adding the slurry into a ball rolling machine, rolling into balls, drying at 110 ℃ for 12h, and roasting at 1200 ℃ for 8h to obtain ceramic ball bodies;
(2) preparation of coating slurry: mixing lanthanum oxide, cerium oxide and medical stone powder according to the weight ratio of 1:1:1, then adding silica sol (the weight of the silica sol is 5 wt% of the sum of the weight of the lanthanum oxide, the weight of the cerium oxide and the weight of the medical stone powder) for mixing, and then mixing with deionized water to obtain coating slurry with the solid content of 30%;
(3) a coating layer forming step: soaking the ceramic ball body in the coating slurry for 30min, drying at 110 ℃ for 12h, and roasting at 1200 ℃ for 8h to obtain a prefabricated ceramic ball; and repeating the processes of dipping, drying and roasting for 2 times to obtain the rare earth ceramic ball. The diameter of the rare earth ceramic ball is 0.5 cm.
Examples 1 to 2 and comparative examples 1 to 3
FIG. 1 is a schematic view of a fuel catalyst for a motor vehicle according to the present invention. The motor vehicle fuel catalytic converter is arranged on a pipeline between a fuel tank and an engine of the motor vehicle. As shown in fig. 1, the motor vehicle fuel catalyst comprises a housing 1, an oil pipe 2, rare earth ceramic balls 3 of preparation example 1, and a magnet device 4. The shell 1 is a cuboid structure, the length is 12cm, the width is 7cm, and the height is 14 cm. The material of the shell 1 is stainless steel.
The rare earth ceramic balls 3 and the magnet device 4 are accommodated inside the casing 1, and a part of the oil pipe 2 is disposed inside the casing 1. The magnet device 4 includes a magnet 41 and a magnetic shield 42. The magnetic shield 42 is attached to the inner wall of the housing 1, and the magnet 41 is attached to the magnetic shield 42. The magnetic shield 42 is formed of an iron-nickel alloy and an electromagnetic shield cloth. The magnetic energy product of the magnet 41 is 40MGOe, and the degaussing temperature is more than 180 ℃.
The oil pipe 2 includes a connecting portion and a U-shaped pipe portion. The U-shaped pipe portion is formed by connecting a plurality of U-shaped pipes and is accommodated in the magnet device 4. The connecting part extends out of the shell 1 and is used for connecting a fuel tank and an engine of a motor vehicle. The oil pipe 2 is used for motor vehicle fuel to pass through, is made of stainless steel and has an inner diameter of 10 mm.
The rare earth ceramic balls 3 are positioned outside the oil pipe 2 and are mainly distributed in gaps among the plurality of U-shaped pipes and gaps between the U-shaped pipe parts and the magnet device 4. Thus, the rare earth ceramic balls 3 can be ensured not to contact with the motor vehicle fuel in the oil pipe 2.
The motor vehicle fuel catalysts were tested on the same motor vehicle. The test was carried out three months after the addition of the motor vehicle fuel catalyst. The oil consumption and the exhaust pollutant emission are measured according to an automobile fuel consumption test method (GB/T12545.1-2008) and a light automobile pollutant emission limiting and measuring method (GB/T18352.3-2005). The results are shown in Table 1.
TABLE 1
Compared with the motor vehicle fuel catalyst which is singly provided with the magnet device or the rare earth ceramic ball, the motor vehicle fuel catalyst is simultaneously provided with the magnet device and the rare earth ceramic ball. The magnet and the rare earth ceramic ball generate synergistic action, so that the discharge amount of pollutants (carbon monoxide, hydrocarbon and nitrogen oxide) in the tail gas of the motor vehicle can be obviously reduced, and the oil consumption is also obviously reduced. It can be seen from the table that the fuel consumption of the motor vehicle can be reduced by more than 17% by adopting the fuel catalytic converter of the motor vehicle. Even if the national IV three-way catalyst is adopted, the emission of the tail gas pollutants can reach the national VI emission standard (GB/T18352.6-2016). As can be seen from examples 1 to 2 and comparative example 1, controlling the magnetic energy product of the magnet in an appropriate range allows the motor vehicle fuel catalyst to exert a better catalytic effect.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and substitutions which may occur to those skilled in the art may be made without departing from the spirit of the invention.
Claims (10)
1. A motor vehicle fuel catalyst disposed on a conduit between a fuel tank and an engine of a motor vehicle, comprising: the device comprises a shell, an oil pipe, a rare earth ceramic ball and a magnet device;
the rare earth ceramic balls and the magnet device are accommodated in the shell, and a part of the oil pipe is arranged in the shell;
the rare earth ceramic balls are located outside the oil tube and are arranged so as not to contact motor vehicle fuel inside the oil tube.
2. The automotive fuel catalyst of claim 1, wherein the magnet arrangement includes a magnet having a magnetic energy product of 20MGOe or more.
3. The automotive fuel catalyst of claim 2, wherein the magnet arrangement further comprises a magnetic shield; the magnetic shield is attached to the inner wall of the shell, and the magnet is attached to the magnetic shield.
4. The automotive fuel catalyst of claim 1, wherein the oil pipe includes a connecting portion and a U-shaped pipe portion; the U-shaped pipe part is accommodated in the magnet device and is formed by connecting a plurality of U-shaped pipes; the connecting part extends out of the shell and is connected with the oil tank and the engine.
5. The automotive fuel catalyst of claim 4, wherein the rare earth ceramic balls have a diameter of 0.3 to 2.0 cm; the rare earth ceramic balls are distributed in gaps among the plurality of U-shaped tubes and in gaps between the U-shaped tube parts and the magnet device.
6. The automotive fuel catalyst of any one of claims 1 to 5, wherein the rare earth ceramic ball comprises a ceramic ball body and a coating layer; the ceramic ball body is formed by one or more of medical stone powder, tourmaline powder or kaolin powder; the coating is formed by a mixture comprising rare earth oxide and medical stone powder.
7. The automotive fuel catalyst of claim 6, characterized in that:
the ceramic ball body is formed by 30-40: 40-60: 10-20 parts by weight of medical stone powder, tourmaline powder and kaolin powder;
the weight ratio of the rare earth oxide to the medical stone powder in the mixture is 1.8-2.2: 1, and the rare earth oxide is selected from at least two of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide and yttrium oxide.
8. The automotive fuel catalyst of claim 7, wherein the mixture further comprises an additive selected from one of a silica sol, an aluminum sol, and a waxy rice gum; based on 100 parts by weight of rare earth oxide and medical stone powder, the using amount of the auxiliary agent is 2-7 parts by weight.
9. The method for producing a motor vehicle fuel catalyst according to any one of claims 7 to 8, characterized by comprising the steps of:
mixing medical stone powder, tourmaline powder, kaolin powder and water to form slurry, rolling the slurry into balls by using a ball rolling machine, drying the balls at 100-170 ℃, and roasting the balls at 1100-1400 ℃ to obtain ceramic ball bodies;
mixing rare earth oxide, medical stone powder, an auxiliary agent and water to obtain coating slurry;
dipping the ceramic ball body in the coating slurry for 15-35 min, then drying at 105-160 ℃, and roasting at 1050-1300 ℃ to obtain a prefabricated ceramic ball; repeating the steps to obtain the rare earth ceramic ball;
the oil tube, rare earth ceramic ball and magnet assembly are assembled with a housing to form a motor vehicle fuel catalyst.
10. Use of an automotive fuel catalyst according to any one of claims 1 to 8 for reducing the amount of automotive exhaust pollutants and fuel consumption.
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