3122 results about "Base oil" patented technology

The invention relates to the technical field of asphalt mixtures, and particularly discloses an asphalt regenerant and a preparation method thereof. The asphalt regenerant comprises the following raw materials in parts by weight: 40-60 parts of base oil, 10-15 parts of a styrene-butadiene-styrene block copolymer, 10-15 parts of microwave activated rubber powder, 5-8 parts of an antioxidant, 10-20 parts of a penetration enhancer and 3-8 parts of a stabilizer, the base oil is at least one of bio-oil and vegetable oil; the bio-oil and the vegetable oil are used for improving the flowability of the regenerant, the regenerant can better permeate into a microporous structure of aged asphalt, and the styrene-butadiene-styrene block copolymer and the microwave activated rubber powder are combined, so that the viscoelasticity and the deformation resistance of the asphalt can be improved; the recovery capability of the regenerant on asphalt with different aging degrees is improved.

The invention relates to the technical field of preparation of a graphene lubricating oil additive through a graphene uniform dispersion technology, and discloses a preparation method of an efficient dispersion type graphene composite lubricating oil additive, which comprises the following steps: a) carrying out surface modification on graphene by utilizing plasma treatment; b) mixing the modified graphene with a surfactant; c) uniformly mixing the graphene dispersion liquid with poly-alpha-olefin (PAO) base oil with specific molecular weight distribution on a nanoscale by adopting a microfluidic technology to form a premix; d) adding a custom-formulated antioxidant, an extreme pressure additive and nanoscale silicon dioxide particles and / or metal oxide into the premix; through plasma treatment and ultrasonic treatment conditions, the compatibility of graphene and base oil is remarkably enhanced, the comprehensive performance of the lubricating oil is improved, meanwhile, the antioxidant, the extreme pressure additive and the nano material are introduced, and the wear resistance, oxidation resistance and extreme pressure performance of the composite additive are remarkably improved.

The invention discloses a lubricant composition and application thereof in processing of a high-weather-resistance PC hollow plate, and relates to the technical field of lubricant compositions. The lubricant composition comprises the following components in parts by mass: 40-60 parts of base oil, 5-15 parts of a weather-resistant stable additive, 3-8 parts of an anti-wear reagent at extreme pressure, 2-6 parts of a dispersing agent, 1-4 parts of an antioxidant, 0.5-2 parts of a coupling agent and 20-30 parts of a solvent. Through the molecular collaborative design of the polar base oil and the solvent, the thermal decomposition tendency in the processing process is remarkably reduced, and a lubricating system is promoted to be upgraded to a low-volatilization and low-pollution green process direction. A weather-resistant additive molecular skeleton with anti-oxidation and anti-ultraviolet characteristics is innovatively constructed, integration of multiple protection mechanisms in material processing and service stages is realized, and dependence on secondary addition of auxiliaries in a traditional process is reduced.

The invention discloses oil-based cooling liquid for a data center and a preparation method of the oil-based cooling liquid, and relates to the technical field of liquid coolant.The oil-based cooling liquid is prepared by taking base oil as a main component, adding a proper amount of heat-conducting filler, a dispersing agent, a coupling agent, an antioxidant, a corrosion inhibitor and a defoaming agent as auxiliary components and simply stirring and mixing; the cooling liquid is high in heat dissipation efficiency, good in fluidity, good in storage stability and chemical stability, low in volatility, high in safety and suitable for immersed cooling of the data center.

The invention relates to the technical field of lubricating oil, in particular to graphene composite rolling oil and a preparation method and application thereof. The rolling oil comprises base oil, branched oleic acid modified graphene containing quaternary ammonium salt, an anti-wear reagent at extreme pressure, an antioxidant, an anti-rust agent and a defoaming agent. Wherein the quaternary ammonium salt branched oleic acid is prepared through a thiol-ene click reaction and a quaternization reaction, and the dispersity, the interface adsorption strength and the high-temperature stability of graphene in a lubricating oil system can be remarkably improved. The product provided by the invention is suitable for rolling lubrication under severe working conditions such as high temperature and high load, and has a wide industrial application prospect.

The invention provides wear-resistant and corrosion-resistant lubricating oil and a preparation method thereof. The wear-resistant and corrosion-resistant lubricating oil is prepared from the following raw materials in parts by weight: 88-92 parts of base oil, 3-6 parts of phosphate and ammonium phosphate co-grafted graphene oxide, 0.5-1 part of a purification dispersant, 0.5-1 part of an antirust agent, 2-4 parts of an antioxidant, 0.5-1 part of a defoaming agent and 0.5-1 part of a pour point depressant. The phosphate and the ammonium phosphate are jointly grafted with the graphene oxide, and the wear resistance and the corrosion resistance of the lubricating oil are synergistically improved by utilizing the'nano bearing 'effect of a phosphate group, an ammonium phosphate group and the graphene oxide; meanwhile, by utilizing the capacity of ammonium phosphate groups for neutralizing acidic substances and the chelation of phosphate groups and combining the high specific surface area and barrier property of the graphene oxide, the anti-corrosion and anti-oxidation effects are further enhanced. Through a multifunctional synergistic effect, the problem that a traditional additive is single in function is solved, and the service life of the lubricating oil in high-temperature, high-load and extreme environments is remarkably prolonged.

The invention provides an oil well oil production prediction method based on CEEMDAN-SA-LSTM, and the method is characterized in that the method comprises the following steps: 1) collecting oil well feature data, complementing missing values, processing abnormal values, and converting a data set into a format suitable for model training; 2) carrying out importance analysis by utilizing a Boruta algorithm, and constructing an oil well oil production characteristic data set; 3) performing data set division on the data converted in the step 2); and 4) carrying out feature decomposition by using CEEMDAN and carrying out data dimension reduction by using PCA to obtain a final component feature data set. 5) inputting the final component feature data set into the SA-LSTM model for training, and constructing a prediction model; 6) adjusting and optimizing the model by adopting a parallel genetic algorithm to obtain an optimal parameter combination; and 7) according to the trained oil well oil production prediction model, using test set data to verify the model performance, and predicting the oil well oil production. The invention discusses the method for predicting the oil production of the oil well by using the CEEMDAN-SA-LSTM model, and the method can obtain a better prediction result.

The invention belongs to the field of hydraulic oil, and particularly discloses a flame-retardant hydraulic oil composition and a preparation method thereof. The hydraulic oil composition is prepared from the following components in parts by weight: 67 to 97 parts of main base oil, 5 to 30 parts of auxiliary base oil, 1.2 to 1.5 parts of a lubricating agent, 1.5 to 2.0 parts of an antioxidant, 0.03 to 0.06 part of a corrosion inhibitor, 0.01 to 0.08 part of a demulsifying agent and 0.01 to 0.08 part of a de-foaming agent, the auxiliary base oil is one of trimethylolpropane trinonanoate, trimethylolpropane caprylic capric acid ester and trimethylolpropane caprylic laurate; the components are sequentially mixed to obtain the flame-retardant hydraulic oil. According to the invention, a specific main-auxiliary base oil system is compounded with other additives, so that the final oil product has excellent anti-oxidation characteristic, the use temperature upper limit is improved, the service life of the oil product is further prolonged, and the stability and low-temperature pumping capacity of the oil product in the use process are improved.

The invention discloses an intelligent agent-based oil field station unattended intelligent operation and maintenance centralized control method and system, and belongs to the technical field of oil field station intelligent operation and maintenance management. The system comprises a data acquisition module, a data summarization decision module, a station coordination execution module, an emergency intervention module and an output module; pressure sensors, temperature sensors, flow sensors, liquid level sensors and water content sensors are arranged at oil field inter-well stations, transfer stations and united stations, and crude oil conveying equipment data of the inter-well stations, the transfer stations and the united stations are collected in real time. According to the intelligent agent-based unattended intelligent operation and maintenance centralized control method and system for the oil field station, station correlation analysis, instant optimization adjustment strategy and target optimization adjustment strategy generation, station specific parameter execution, feedback and optimization adjustment strategy fine adjustment and decision process recording can be realized, and a large model and a small model are closely combined; and an up-and-down collaborative hierarchical control framework is formed, so that the practicability and functionality are enhanced.

The invention relates to the technical field of cutting fluids, and discloses a high-temperature alloy cutting fluid and a preparation method thereof, the high-temperature alloy cutting fluid comprises the following components: 30%-50% of base oil, 5%-10% of organic alkali, 5%-10% of an antirust agent, 4%-10% of synthetic ester, 15%-20% of an anti-wear reagent at extreme pressure, 0.5%-1.5% of a corrosion inhibitor, 7%-15% of an emulsifier, 2%-4% of a bactericide, 0.05%-0.1% of a defoaming agent, and the balance of water; the extreme pressure anti-wear agent is composed of a chlorination extreme pressure anti-wear agent and a vulcanization extreme pressure anti-wear agent. According to the invention, the ester-based base oil, the organic alkali, the synthetic ester and the extreme pressure anti-wear agent composed of the chlorination extreme pressure anti-wear agent and the vulcanization extreme pressure anti-wear agent are combined to form a continuous high-strength lubricating film, and the continuous high-strength lubricating film is compounded with additives such as the organic acid antirust agent, the corrosion inhibitor and the bactericide; therefore, the antirust corrosion inhibition performance of the cutting fluid on workpieces and machine tools and the long-term use safety and environmental protection performance are improved during processing.

The invention discloses a petroleum pipeline service life prediction system based on a 3D technology, and relates to the technical field of pipeline service life detection, and the system comprises a contour reconstruction module S11 which is used for obtaining the surface three-dimensional point cloud image data of a petroleum pipeline housing in an actual operation environment, and carrying out the surface contour reconstruction processing based on the three-dimensional point cloud image data, extracting space geometric structure data containing a local deformation defect area; the force-heat coupling analysis module S12 is used for constructing a finite element analysis grid according to the space geometric structure data and loading operation condition data into corresponding grid nodes to generate a force-heat coupling stress field, and the operation condition data comprises a periodic internal working pressure value, along-line temperature field data and an axial disturbance stress tensor; the feature extraction module S13 is used for calculating an equivalent stress distribution value of a defect area node based on a force-heat coupling stress field; according to the invention, accurate quantification of fatigue damage evolution of the defect area is realized.

The invention discloses a non-contact on-water oil film online monitoring system and device, and particularly relates to the technical field of on-water oil film monitoring. The system comprises an oil leakage detection sensor used for detecting oil film leakage, an alarm and monitoring module used for detecting whether an oil film reaches a rated threshold value or not and giving an alarm, a power supply used for power transmission, and a total server used for sorting and transmitting overall data. According to the invention, impurities on the water surface can be effectively isolated through the anti-interference mechanism 2 mounted on the ultraviolet fluorescence detection sensor, so that the situation that the accuracy of detection data is reduced due to the fact that the detection data is influenced by impurities on the water surface in the prior art is avoided; moreover, the accuracy of detection data is further improved, and the detection effect of the detector is prevented from being blocked due to the influence of other objects, so that the use of a user is better facilitated.

The invention relates to the technical field of lubricating oil, in particular to anti-wear and anti-attrition composite lubricating oil and a preparation method and application thereof. The anti-wear and anti-attrition composite lubricating oil is prepared from the following raw materials: base oil, an anti-wear reagent at extreme pressure, a preservative, an antioxidant, a viscosity index improver and a dispersing agent, the extreme pressure anti-wear agent is obtained by modifying layered molybdenum oxide with metal micelles formed by dodecylamine and wet and then carrying out hydrothermal treatment and vulcanization. The prepared anti-wear and anti-attrition composite lubricating oil has excellent anti-wear and anti-attrition effects and extreme pressure properties, is suitable for the lubrication requirements under high load and harsh conditions, and has a wide application prospect.

A lubricating oil composition is described. The composition includes a major amount of a base oil of lubricating viscosity and a polyphosphate-based dispersion. The dispersion includes an ammonium polyphosphate and a dispersing agent.

The invention discloses a high-stability antirust emulsified cutting fluid, which is composed of the following components by mass: 0.2-1% of a copper corrosion inhibitor, 5-10% of organic amine, 3-10% of an organic acid, 5-10% of an emulsifier, 35-45% of base oil, 1-3% of a preservative, 0.1-1% of an acidic corrosion inhibitor, 10-20% of a lubricating additive, 1-3% of a coupling agent, 0.5-2% of an antifoaming agent, and the balance of water. The emulsifier is composed of a nonionic surfactant and an anionic surfactant, and the acidic corrosion inhibitor is an imidazole compound. Compared with the existing emulsified cutting fluid, the emulsified cutting fluid has high stability in high-temperature, low-temperature, high-hardness water and slightly acidic systems, has good antirust, lubricating, cooling and cleaning performances, can effectively improve the processing efficiency, prolong the service life of equipment and improve the quality of workpieces, and is especially suitable for cutting of ferrous metals.

The invention provides a method for improving lubricating property and wear resistance of base oil and a method for improving dispersion stability of graphite in the base oil. A telechelic polymer is adopted, the telechelic polymer is composed of an oil-soluble central chain and two non-oil-soluble pyrene functionalized end-group chains, and the telechelic polymer can be self-assembled into a completely cross-linked, rodlike and stable gel network through pi-pi stacking interaction. The telechelic polymer is added into the base oil, so that stable oil gel can be formed, on one hand, leakage and wriggling of the base oil can be remarkably relieved, and on the other hand, the lubricating property and wear resistance of the base oil can be improved; when graphite or a derivative thereof is also added, the lubricating property and the wear resistance can be further improved, particularly when the graphite is added, the graphite can be stripped into graphene in situ under the assistance of ultrasonic waves, the cost is low, the method is simple and easy to implement, and the dispersion stability of the graphite is improved.

The invention discloses Pickering emulsion applied to concrete demolding and a preparation method thereof, and relates to the technical field of building materials. The Pickering emulsion is prepared from the following raw material components: 200 to 600 parts of base oil, 50 to 60 parts of a compound emulsifier, 50 to 60 parts of a co-emulsifier, 1 to 2 parts of a dispersed phase pour point depressing component, 0.5 to 1 part of an antioxidant, 8 to 10 parts of a continuous phase thixotropic stabilizing component, 10 to 15 parts of a color regulating agent and 500 to 550 parts of water. The Pickering emulsion has excellent concrete demoulding performance, also has concrete self-curing performance and anti-ultraviolet performance, and can effectively improve the structural strength of concrete, prolong the service life of concrete and ensure the appearance quality of concrete. The problems existing in a traditional release agent are solved, additional functionality and attractiveness are provided for concrete products, and the release agent is suitable for various building and infrastructure projects and has wide application prospects.

Provided is a lubricating oil composition containing a base oil (A), a phosphorous acid ester (B) having at least one sulfur atom-containing group having 2 to 20 carbon atoms, the sulfur atom-containing group having at least one -(S)x- group (x is an integer of 1 or more) between two adjacent carbon atoms in a structure of an alkyl group, a thiadiazole-based compound (C), and a benzotriazole-based compound (D), wherein a content of the component (C) is 0.01 mass% or more and less than 0.60 mass% based on the total amount of the lubricating oil composition, and a content of the component (D) is 0.02 mass% or more and less than 0.20 mass% based on the total amount of the lubricating oil composition.

The invention discloses high-adhesion port machine lubricating grease and a preparation method thereof, and relates to the technical field of lubricating material preparation and application, the high-adhesion port machine lubricating grease is prepared from the following components by weight: 60-80 parts of base oil, 3-5 parts of a functional copolymer, 0.1-0.6 part of Meso-tetramethyl-meso-tetra (p-aminophenyl) calix [4] pyrrole, 0.1-0.6 part of 1, 2, 4-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1 The lubricating oil comprises the following components in parts by weight: 0.3-0.5 part of 1, 3-diaminothiourea, 3-5 parts of molybdenum sulfide nanosheets, 0.5-1 part of an antirust agent, 0.1-1 part of a dispersing agent, 2-4 parts of an antioxidant and 0.3-0.6 part of modified rosin. The functional copolymer comprises a structural unit introduced by the following monomers: bis (trimethylsilylated) vinyl phosphate, 4-methyl-5-vinylthiazole, N-(4-cyano-3-trifluoromethylphenyl) methacrylamide and vinyl boronic acid pinacol ester. The lubricating grease is high in adhesive force and excellent in extreme pressure wear resistance, salt mist resistance and damp heat resistance.

The invention relates to the field of fire-resistant oil, in particular to phosphate-based fire-resistant oil with synergistically optimized flame resistance and stability and a preparation method of the phosphate-based fire-resistant oil. The fire-resistant oil comprises base oil and an additive, the base oil is a mixture obtained by esterification of mixed alkylphenol and phosphorus oxychloride; the molar percentage of the mixed alkylphenol is as follows: 4-6% of phenol; 11 to 14 percent of p-methylphenol; 22 to 26 percent of 2, 5-position dimethyl phenol; 0.8 to 1.5 percent of 2, 4-position dimethyl phenol; 2.5 to 4 percent of 2, 3-position dimethyl phenol; 0.4 to 0.6 percent of 4-ethyl phenol; 40 to 48 percent of 3, 5-position dimethyl phenol; 8 to 11% of 3-ethyl phenol; 3 to 5 percent of 3, 4-position dimethyl phenol; the additives comprise an antioxidant, a corrosion inhibitor, an anti-foaming agent and an anti-hydrolysis agent; the addition amount of the antioxidant is 0.05-5% of the total mass of the base oil; the addition amount of the corrosion inhibitor is 0.001%-0.08% of the total mass of the base oil; the addition amount of the anti-foaming agent is 0.001%-0.009% of the total mass of the base oil; the addition amount of the anti-hydrolysis agent is 0.001%-0.005% of the total mass of the base oil. The fire-resistant oil provided by the invention can be safely used under the working conditions of high temperature and extreme pressure.

The invention relates to the technical field of guide rail oil, in particular to a phosphorus-free environment-friendly guide rail oil composition which comprises the following components in percentage by weight: 0.2-0.8% of a composite additive; 0.1-0.3% of an antirust agent; 0.2 to 0.5 percent of an antioxidant; 0.01%-0.1% of a defoaming agent; and the balance of mineral base oil. Compared with the prior art, the non-phosphorus guide rail oil composite additive is characterized in that 1, the non-phosphorus guide rail oil composite additive is prepared from a fatty acid ester oiliness agent mixture, and the components are non-phosphorus; 2, a mercapto-thiadiazole derivative is adopted, so that a mercapto-thiadiazole protective coating is formed on a friction surface, the anti-corrosion and anti-rust effects are achieved, and the components are phosphorus-free; 3, a phenol type antioxidant is adopted as an antioxidant, so that the creeping phenomenon of a machine tool guide rail caused by loss of lubricity and astringent friction surface due to the fact that an oil product generates oxide in the operation process and colloid is adhered to the metal surface is avoided, and the component is non-phosphorus; the prepared guide rail oil is free of phosphorus, phosphorus reduction emission of enterprises is achieved, and the ecological environment of a water body is protected.

The invention relates to the technical field of liquid cooling, and discloses a cooling liquid composition, a preparation method and application thereof and an immersed cooling device. The cooling liquid composition is prepared from the following components in parts by mass: 30 to 50 parts of hydrogenated dipolydecene, 10 to 40 parts of II-type base oil and 10 to 40 parts of III-type base oil. Through mutual cooperation and optimization of the components, the low-cost and high-performance cooling liquid composition and the preparation method thereof are developed, and the provided cooling liquid composition has the characteristics of high flash point, large specific heat capacity, low kinematic viscosity, large breakdown voltage and good copper corrosion rating, can be applied to an immersed liquid cooling heat dissipation system and an immersed cooling device, and has good application prospects. The requirements for flowability, electrical insulation and metal compatibility are met, and excellent safety and heat exchange performance are shown.

The invention discloses a resource regeneration method of waste lubricating oil, relates to the technical field of petrochemical engineering, and belongs to the patent classification number C10M175 / 06. The preparation method comprises the following steps: adding a composite flocculant into the waste lubricating oil, heating and stirring, and then carrying out magnetic separation to obtain pretreated waste lubricating oil; uniformly mixing the pretreated waste lubricating oil, glycerol and a Ni / Al2O3 catalyst, then heating and reacting under pressure, and cooling to room temperature to obtain a catalytic hydrogenation product; and carrying out reduced pressure distillation on the catalytic hydrogenation product, recovering the lubricant base oil fraction, adding methanol and concentrated sulfuric acid into the distillation residual liquid, heating for esterification reaction, and separating the liquid to obtain the biodiesel. In the pretreatment process, the composite flocculant is used for removing acid and particle impurities in the lubricating oil, a traditional alkali adding neutralization precipitation process is replaced, the method is environmentally friendly, and the recovery cost of enterprises is reduced.

The invention provides a lubricant with a modified silicon carbide particle structure coated with a resin material for a drilling fluid as well as a preparation method and application of the lubricant, and belongs to the technical field of lubricants for oil field drilling fluids. The preparation method of the lubricant comprises the following steps: adding pretreated nano SiC particles, hydroxyethyl acrylate, dodecyl acrylate and a silane coupling agent into base oil, then adding a chain transfer agent, stirring, and then adding an initiator for reaction; after the reaction is finished, filtering, washing and drying to obtain modified nano SiC particles; and adding the modified nano SiC particles into the fluorocarbon resin solution, heating for reaction, drying and grinding to obtain the fluorocarbon resin. The invention develops a novel efficient lubricant material for the drilling fluid, and the lubricant material not only can greatly reduce the flow resistance of the drilling fluid and the friction resistance coefficient of a filter cake and slow down the wear of a drilling tool, but also has excellent wear resistance and corrosion resistance, and can effectively improve the drilling efficiency and prolong the service life of a drill bit.

The invention relates to the technical field of cleaning agents, in particular to a water-based oil stain cleaning agent and a preparation method and application thereof. The homogeneous-phase stable water-based cleaning agent is formed by taking water as a main component and a special additive as a core complex liquid and matching with terpenoids, alcohol ether and a biodegradable surfactant, the cleaning agent is harmless to skin (pH value is 6.5-9.5), LD50 (rat oral) is greater than 17000mg / kg, the cleaning agent is not inflammable and explosive, and the cleaning agent is free of toxic and side effects. And the cleaning agent has quick and efficient cleaning power on various product oils, crude oils, various adhesives and waxiness.

The invention belongs to the technical field of membrane separation, and provides a ceramic-based oil-water separation membrane as well as a preparation method and application thereof. According to the method, Ti3C2Tx particles are stripped into lamellar Ti3C2Tx, then ZIF-62 is synthesized in the lamellar Ti3C2Tx in situ, the ZIF-62 plays a role in pillared between layers of the Ti3C2Tx, the interlayer spacing of the Ti3C2Tx is stabilized, the Ti3C2Tx is prevented from being excessively expanded in an aqueous solution, and the separation performance is improved; then, the ZIF-62 / Ti < 3 > C < 2 > T < x > is calcined, ZIF-62 crystal particles in the ZIF-62 / Ti < 3 > C < 2 > T < x > are vitrified, and the obtained agZIF-62 enhances the pillared effect of the agZIF-62 on the lamellar Ti < 3 > C < 2 > T < x > and the interlayer spacing stability of the agZIF-62 on the lamellar Ti < 3 > C < 2 > T < x >. And then the agZIF-62 / Ti3C2Tx is modified, so that the surface wettability of the ceramic-based oil-water separation membrane is enhanced, and the oil-water separation performance of the ceramic-based oil-water separation membrane is further improved.

The invention relates to the technical field of bearing lubricating grease, and particularly discloses a high-temperature-resistant lubricant composition and a preparation method thereof. The high-temperature-resistant lubricant composition comprises the following raw materials in parts by weight: 90-110 parts of base oil, 30-35 parts of a thickening agent, 2-3.5 parts of modified nanoparticles, 0.5-1.5 parts of an antioxidant, 1-3 parts of an antirust agent and 0.5-1 part of a friction modifier, the thickening agent comprises polyethylene glycol, modified polyurea lubricating grease and a surfactant according to a mass ratio of 1: (0.3-0.5): (0.1-0.15); the modified nano particles are brominated-1-hexadecyl-3-methylimidazolyl ionic liquid modified nano particles, and the nano particles comprise carbon nano particles and nano tungsten disulfide in a mass ratio of (2-3): 1. The lubricating grease composition provided by the invention has the advantages of good nanoparticle dispersibility, strong high temperature resistance, and excellent oxidation stability and antifriction and antiwear properties.

The invention discloses a cooling liquid and a preparation method thereof. The cooling liquid comprises base oil, a flame retardant and a synergist, wherein the synergist comprises at least one of an aldehyde substance containing a six-membered ring and a ketone substance containing a six-membered ring. The cooling liquid provided by the invention is free of pungent smell and has relatively good insulation performance and safety performance.

A method for mitigating preignition events in a hydrogen internal combustion engine. The method includes providing a dosing system in fluid communication with a dosing cylinder of a cylinder block of the hydrogen internal combustion engine; introducing a lubricant including a base oil, a polymer, or mixtures thereof to an intake area of the dosing cylinder via the dosing system; and initiating operating conditions for the hydrogen internal combustion engine.

The invention discloses a hydrocracking catalyst as well as a preparation method and application thereof. The catalyst comprises a carrier and an active metal component, the carrier comprises a modified Y molecular sieve and aluminum oxide, and the modified Y molecular sieve has the following properties: the crystal particle size is 500 nm or less, the molar ratio of silicon oxide to aluminum oxide is 8-55, the specific surface area is 640-800 m < 2 > / g, the unit cell parameter is 2.433-2.460 nm, and the average pore size is 10-30 nm; the active metal component comprises Mo and a group VIII metal element; the Mo comprises + 5 valence Mo; the group VIII metal element exists in the catalyst in the form of metal phosphide. The catalyst has excellent isomerization performance and aromatic hydrocarbon conversion capability, and is suitable for a hydrocracking process for producing special oil and lubricant base oil.