1659 results about "Gasoline" patented technology

The present invention discloses a method, device and application for producing aviation kerosene from methanol, and belongs to the field of petrochemical product processing technology. The method comprises: generating a methanol dehydration reaction product from a methanol raw material under the catalytic action of a first molecular sieve catalyst, separating and treating the methanol dehydration reaction product, and then mixing it with one or more of recycled fuel gas, recycled liquefied gas or recycled gasoline under the catalytic action of a second molecular sieve catalyst to generate a reaction oil gas, the reaction oil gas is fractionated to obtain a kerosene fraction, and the kerosene fraction is subjected to a hydrogenation and refining treatment to obtain aviation kerosene. The method for producing aviation kerosene using methanol as a raw material provided by the present invention has opened up a new way to produce aviation kerosene; the process flow is short and compact, and can effectively achieve energy conservation and emission reduction.

The invention belongs to the technical field of automobile chassis, and particularly relates to laser cutting equipment for gasoline engine piston production, which comprises a bottom plate, one side of the upper end surface of the bottom plate is fixedly connected with a rack, the rack is provided with a conveying belt, and the rack is also provided with a separation cutting mechanism; the separating and cutting mechanism comprises a third supporting plate fixedly connected to one side of the upper end of the rack, one end of the third supporting plate is fixedly connected with a limiting plate, the third supporting plate is slidably connected with a transmission plate and a plurality of feeding plates, the limiting plate, the feeding plates and the transmission plate are matched with one another to form a plurality of feeding channels, and the feeding channels are the same in width. One side of the rack is slidably connected with an inserting plate, and the inserting plate is connected with the limiting plate, the feeding plate and the transmission plate in an inserting and sliding mode. By means of the separation cutting mechanism, the process that workers take steel pipes in sequence for cutting is omitted, the labor intensity of the workers is reduced, the multiple steel pipes are cut at the same time, and the working efficiency can be improved.

The invention relates to the technical field of fuel additives, in particular to a fuel additive as well as a preparation method and application thereof. Comprising the following components in parts by weight: 60 to 220 parts of bis-polyether amine, 10 to 20 parts of polyisobutene amine, 5 to 15 parts of polyether polyol, 5 to 30 parts of alkyl amine alcohol, 0.5 to 20 parts of polybasic fatty acid ester, 0.5 to 20 parts of alkyl acid ester, 10 to 30 parts of a catalyst, 2 to 7 parts of an antioxidant, 5 to 10 parts of a corrosion inhibitor and 10 to 50 parts of carrier oil. A small amount of the fuel additive is mixed with gasoline or diesel oil, and through bis-polyether amine and polyisobutene amine, combustion of fuel oil in a combustion chamber of an internal combustion engine is improved, more complete combustion of the gasoline or the diesel oil is promoted, the combustion efficiency of the fuel oil is enhanced, the oil consumption is reduced, and the economical efficiency of the fuel oil is improved; and air pollution caused by emission of hydrocarbon or combustion intermediate products is reduced.

The invention relates to the technical field of low-density polyethylene cracking, in particular to a low-density polyethylene cracking method and cracking gasoline. The low-density polyethylene cracking method comprises the following steps: cracking low-density polyethylene in the presence of an H-type ZSM-5 molecular sieve; the molar ratio of silicon to aluminum in the ZSM-5 molecular sieve is 20 to 100; in an X-ray diffraction pattern of the ZSM-5 molecular sieve, the strongest diffraction peak of 2 theta in the range of 7.5-25 degrees is I0, I1 to I4 respectively represent four strongest diffraction peaks of 2 theta in the range of 7.5-25 degrees and in the range of 7.5-25 degrees, except I0, I2 / I0 is greater than or equal to 0.45 and less than or equal to 0.56, I2 / I0 is greater than or equal to 0.53 and less than or equal to 0.71, I3 / I0 is greater than or equal to 0.42 and less than or equal to 0.55, and I4 / I0 is greater than or equal to 0.30 and less than or equal to 0.39. According to the present invention, the specific ZSM-5 molecular sieve is adopted as the catalyst to perform low density polyethylene cracking, and advantages of high liquid phase yield and high liquid phase combustion heat value are provided.

The invention relates to the technical field of gasoline processing, in particular to a method and a device for producing diesel oil with a low freezing point by taking heavy aromatics and mixed diesel oil as raw materials, the method comprises the following steps of: 1, mixing the heavy aromatics, the mixed diesel oil and hydrogen, feeding into a hydrofining unit, and carrying out hydrofining reaction under the action of a hydrofining catalyst, a hydrofining reaction product is obtained; step 2, the hydrofining reaction product enters a hydro-upgrading unit and is subjected to hydro-upgrading reaction under the action of a hydro-upgrading catalyst, and a hydro-upgrading reaction product is obtained; and 3, feeding the hydro-upgrading reaction product into a rectification unit, and carrying out rectification separation to obtain naphtha and-35 # diesel oil with a low freezing point. The heavy aromatics, the hydrogen and the mixed diesel oil are mixed, the obtained mixed material is subjected to hydrofining and hydro-upgrading treatment, the-35 # low-freezing-point diesel oil is obtained, the method has the advantages of being short in technological process and small in equipment investment, the field process does not need to be greatly transformed, and the quality improvement and efficiency improvement effects are remarkable.

A gasoline modifier, a preparation method therefor and a use thereof, and a clean and environmentally friendly gasoline containing same. By volume, the gasoline modifier comprises 10-30 parts of No. 3 or No. 5 white oil, 5-50 parts of a gasoline detergent synergist and 40-85 parts of isooctyl alcohol; the gasoline detergent synergist comprises a stock liquid and a diluent liquid; the stock liquid is a liquid substance formed by mixing 2-ethylhexyl phosphate and etidronic acid in a weight ratio of 1.8-3:1 and heating to perform an esterification reaction; and / or the stock liquid comprises 2-ethylhexanol, phosphite ester, 2-ethylhexyl acetate, polyisobutylene succinic anhydride and ethylhexyl phosphate; the diluent liquid is formed by mixing formaldehyde having a content greater than 99% with oligomeric water clusters in a weight ratio of 1:4-3:7; and the weight percentage of the stock solution in the gasoline detergent synergist is 0.8%-1.3% white oil. The gasoline modifier is a pure petroleum product. When added to gasoline, it can change the physical properties of the gasoline, and achieve the effects of increasing efficiency, saving fuel, removing carbon and reducing emissions.

The utility model discloses a film covering, fixed-point film breaking and soil covering all-in-one machine, which comprises a moving unit, a film covering unit and a soil covering unit, and is characterized in that the moving unit comprises a frame, a first gasoline engine arranged on the frame, walking wheels arranged on the frame, and a transmission part provided with a first transmission wheel; the film breaking unit comprises a second transmission wheel rotatably mounted on the frame, a crank rocker arm mechanism connected with the second transmission wheel, a film breaking rod mounted on the crank rocker arm mechanism and a drill bit mechanism mounted on the film breaking rod, and a transmission chain is mounted between the second transmission wheel and the first transmission wheel; the film mulching unit comprises a film cylinder frame, a film pressing wheel and a soil guiding wheel which are sequentially installed below the frame and in front of the drill bit mechanism from front to back, and the film pressing wheel and the soil guiding wheel are located on the two sides of the frame respectively; according to the equipment, two links of film mulching and fixed-point soil covering are seamlessly integrated, the soil filling and hole sealing operation procedure is moved forwards, the problem that labor is difficult to use in the links is effectively solved, and meanwhile convenience is provided for subsequent transplanting operation.

The invention discloses a combined processing technology of catalytically cracked gasoline, which belongs to the technical field of petrochemical engineering, and comprises the following steps: cutting the catalytically cracked gasoline into light component gasoline and heavy component gasoline; mixing the light-component gasoline with alkali liquor, continuously extracting with the alkali liquor, and collecting refined light-component gasoline; mixing the heavy-component gasoline with a hydrodesulfurization catalyst, carrying out hydrodesulfurization reaction, and collecting refined heavy-component gasoline; and mixing the refined light-component gasoline and the refined heavy-component gasoline to obtain a low-sulfur catalytically cracked gasoline product. The reinforcing material, the modified macroporous alumina, the organosilicon, the microcrystalline cellulose and the chitosan are mixed to form a cross-linked network structure aerogel as a hydrodesulfurization catalyst, stress generated under thermal shock of catalytically cracked gasoline can be absorbed and reduced, and the mechanical strength of the hydrodesulfurization catalyst is improved; the hydrodesulfurization catalyst has a large surface area and a porous structure, so that the specific surface area of the hydrodesulfurization catalyst is increased, and the desulfurization efficiency of the hydrodesulfurization catalyst is further improved.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and / or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and / or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and / or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

The invention discloses a composite aperture molecular sieve catalytic cracking catalyst and a preparation method thereof, and belongs to the technical field of catalytic cracking, the composite aperture molecular sieve catalytic cracking catalyst comprises 20-30% of a macroporous material, 40-60% of a mesoporous-microporous molecular sieve and 20-30% of a binder; the macroporous material is a macroporous alumina / kaolin compound, and the macroporous alumina / kaolin compound takes macroporous alumina as a core and macroporous kaolin as a shell; the mesoporous-microporous molecular sieve is a ZMQ-1 molecular sieve. According to the mode, the macroporous material is prepared from the macroporous aluminum oxide / kaolin compound, the ZMQ-1 molecular sieve and the binder, and the macroporous material takes macroporous aluminum oxide as a core and macroporous kaolin as a shell in the macroporous aluminum oxide / kaolin compound. The catalyst for catalytic cracking of heavy oil has the advantages of high yields of dry gas, liquefied gas, gasoline and diesel oil, low yields of coke and heavy oil and the like. The secondary cracking reaction of gasoline or diesel oil can be effectively prevented, so that the yield of gasoline and diesel oil is improved.

Disclosed in the present invention are a cryogenic fuel engine cold-start system, a control method, an apparatus, a device, a medium, and a vehicle. The cryogenic fuel engine cold-start system comprises: a cryogenic fuel engine, a cryogenic fuel tank, a master controller, a battery, and a cryogenic fuel injector. The cryogenic fuel tank is connected to a feed port of the cryogenic fuel injector; a nozzle of the cryogenic fuel injector is connected to the cryogenic fuel engine, and is used for injecting a cryogenic fuel to the cryogenic fuel engine; the cryogenic fuel engine is provided with an electric heating apparatus communicationally connected to the master controller; the battery is electrically connected to the electric heating apparatus; and the electric heating apparatus at least comprises an air channel heating apparatus. In the present invention, by means of the air channel heating apparatus arranged in an air inlet channel, a cryogenic fuel jet is boiled, thereby solving the cold-start problem of a cryogenic fuel, i.e., solving the cold-start problem of methanol, and matching an extended-range technology route. In addition, compared with the prior art that gasoline is used for heating, the present invention uses the electric heating apparatus, thereby avoiding the problems in the prior art of emission exceedance and emission aftertreatment that need to be considered when gasoline is used for heating.

The invention provides an energy-saving type energy storage power generation device based on methanol fuel, belongs to the technical field of methanol fuel power generation, and solves the technical problems that an existing methanol fuel power generation device is slow in ignition, energy cannot be efficiently utilized, the module integration efficiency is low and the like. Comprising a container, a heat exchange gasifier, a heat exchange heater, a methanol reforming fuel cell module, a methanol storage tank, a gasoline storage tank, a methanol fuel generator assembly, two cell modules and two attenuators are arranged in the container, and a water tank is arranged at the upper end of the methanol storage tank; material conveying metering pumps are arranged between the gasoline storage tank and the methanol fuel generator assembly and between the water tank and the heat exchange vaporizer, a material conveying metering pump is arranged between the methanol storage tank and the heat exchange heater, and a silencer, an engine heat dissipation system and a tail gas treatment assembly are arranged at the upper end of the container. The modular container design facilitates transportation and rapid deployment, is efficient, flexible, energy-saving and environment-friendly, and is provided with a multi-stage tail gas treatment and noise reduction system to ensure environment-friendly and low-noise operation.

The utility model discloses a high antiknock gasoline transport tank, which belongs to the technical field of gasoline transport tanks and comprises a tank body, an input pipe orifice is arranged at the top of the tank body, an output pipe orifice is arranged at the bottom of the tank body, the tank body comprises an outer shell and an inner shell, a gap is reserved between the outer shell and the inner shell, and the outer shell is positioned outside the inner shell. Supporting partition plates are arranged between the outer shell and the inner shell, the space between the supporting partition plates is filled with a thermal insulation material, a buffering assembly is arranged in the inner shell, the inner shell and the outer shell are cylindrical, the two ends of the inner shell and the two ends of the outer shell are arc protruding parts, the thermal insulation material is rock wool, and the buffering assembly comprises a static partition plate fixed to the inner wall of the inner shell; according to the gasoline transportation tank, a stable storage structure can be provided for gasoline, the overall structural strength of the tank body is improved through the supporting partition plate, in the transportation process, the movable partition plate can rotate and block the passing opening, and the gasoline is prevented from excessively impacting the inner shell in the shaking process.

Disclosed are routes for producing liquid hydrocarbon products containing gasoline and / or diesel boiling range hydrocarbons, and optionally renewable products containing non-petroleum derived carbon. In a typical process, a gaseous feed mixture containing a combination of CO 2 and H 2 and / or CH 4 (or other hydrocarbon sources of H 2 ) is converted by a reforming and / or reverse water gas shift (RWGS) reaction optionally used in combination with Fischer-Tropsch (FT) synthesis and / or cracking. Preferred gaseous feed mixtures are biogas or mixtures of CO 2 and H 2 that are not easily upgraded in conventional processes. The catalysts described herein have high activity to catalyze the reforming (including dry reforming) of CH 4 and other light hydrocarbons (e.g., those produced by FT synthesis and recycled to the process as light fractions) and simultaneously catalyze the RWGS reaction. These attributes provide flexibility with respect to compositions that can be efficiently converted. Optionally, the use of an electrically heated reforming reactor in the first reforming stage or initial reforming stage or RWGS stage can improve the economics of small-scale operation.

A device and a method for predicting exhaust emissions of a gasoline engine (10) with an exhaust gas aftertreatment system (22) are proposed, which has a first lambda probe arranged downstream of combustion chambers (15) of the gasoline engine (10) and upstream of a first three-way catalyst (26) arranged closest to the combustion chambers (15) of the gasoline engine (10), and which has a second lambda probe arranged downstream of the first three-way catalyst (26), downstream or upstream of a first gasoline particulate filter (30) and upstream of a second three-way catalyst (32), and which has an engine control unit (36) in which an emissions model (42) is integrated, which has a combustion raw emissions model (44) via which raw emissions are calculated from the operating data of the gasoline engine (10), and has an exhaust gas aftertreatment model (46),via which the emissions at the outlet of the exhaust aftertreatment system (22) are calculated from the raw emission data. A first combustion air ratio in the exhaust stream is measured by means of the first lambda probe (24) to determine a first injected fuel mass, and an injected fuel mass is calculated as a function of the measured values of the first lambda probe (24), which serves as the input value of the emissions model (42). From this, the exhaust emissions at the outlet of the exhaust aftertreatment system (22) are subsequently calculated.

The gasoline engine generator fuel tank shell stamping die comprises a die body, a base, supporting columns, a hydraulic cylinder, a mistake-proofing structure and a waste collecting structure, the supporting columns are fixedly connected to the four corners of the bottom end of the base, a lower die is installed at the upper end of the base, a discharging port is formed in the middle of the interior of the lower die, and the hydraulic cylinder is fixedly connected with the lower die. A positioning pin is arranged on the upper surface of the lower mold, a heat conduction plate is arranged between the lower mold and the base, a refrigeration sheet is arranged at the bottom end of the heat conduction plate, the upper mold is arranged above the base, a cooling structure is arranged at the rear end of the lower mold, and the mistake-proof structure is arranged at the inner end of the lower mold. And the waste collecting structure is arranged at the bottom end of the base. By means of the structure, the problems that damageable parts of an existing stamping die are tedious to replace, waste is difficult to clean, and cooling efficiency is low can be solved, production efficiency is improved, the rejection rate is reduced, and the working environment is improved.

The utility model belongs to the technical field of trephine, and particularly relates to a novel trephine which comprises a trephine body, a trephine blade capable of cutting a wall is arranged at the front end of the trephine body, an engine and an oil tank are arranged at the rear end of the trephine body, the engine is connected with the oil tank and can drive the trephine blade to rotate, and a transmission assembly is arranged in the trephine body. The transmission assembly comprises a transmission rod connected with the engine and a rotating rod connected with the trephine blade, the transmission rod is in gear meshing connection with the rotating rod, the engine drives the transmission rod to rotate and can drive the trephine blade to rotate through the rotating rod, and the trephine is simple in structure and needs to be driven to work in a gasoline mode.

The invention relates to the technical field of base oil molecular structure modification, in particular to a gasoline engine oil composition and a base oil molecular modification method thereof, the composition contains 70-85 parts of modified base oil, 5-10 parts of boric acid ester dispersing agent and other additives; when the modified base oil is prepared, the base oil firstly reacts with 3-mercaptopropyltrimethoxysilane, then glycidyl methacrylate and N-vinyl pyrrolidone are sequentially added, a multi-step temperature control reaction is carried out, siloxane groups, epoxy groups and pyrrolidone groups are grafted on molecular chains, and the modified base oil is obtained and used for preparing high-performance gasoline engine oil. Through base oil molecule modification and special additive compounding, the viscosity-temperature performance, the wear resistance and the oxidation stability of the gasoline engine oil are improved, and sediment generation is reduced; the process reduces energy consumption and cost, meets environmental protection requirements, and realizes unification of high performance and economical efficiency.

The present invention relates to the technical field of two-stroke engines, and discloses a multi-cylinder ignition type air-injection two-stroke direct injection multi-fuel design structure, which includes a fuel system, an intake system and a mixed rail air-injection system. The multi-cylinder ignition type air-injection two-stroke direct injection multi-fuel design structure has the following characteristics: intake boosting technology: using an air compressor to achieve intake boosting, thereby improving engine performance; air-assisted boosting technology: using an air compressor to achieve in-rail auxiliary boosting, thereby increasing the degree of mixing of fuel and air and improving engine performance; air-injection cylinder direct injection technology: the atomized particle diameter of the existing high-pressure common rail technology is about 10-15 microns. Through the air-injection technology, the mixed particles of fuel and air are more thoroughly atomized, and the diameter of diesel can be made to 5-8 microns, thereby realizing ignition type cylinder direct injection; and multi-fuel driving technology: it is easier to ignite low-ignition-point fuels, thereby achieving full combustion in different oil environments such as gasoline, kerosene, diesel, and alcohol gasoline.

The invention discloses a gasoline catalytic distillation desulfurization device and a gasoline catalytic distillation desulfurization method, relates to the technical field of hydrogenated gasoline processing, and aims to solve the problems that although various oil resources can be fractionated at different temperatures, the existing distillation desulfurization device is single in function and low in desulfurization efficiency due to limitation of gas retention time; the technical problem that the processing safety and quality are affected due to local hot spots and coking easily caused by distillation depending on the gas floating characteristic in the prior art is solved, and the device comprises a sealing assembly, a driving assembly connected with the sealing assembly and a collecting assembly located in the sealing assembly. By designing the collecting assembly and the isolating assembly, gasoline steam can be ensured to be in uniform contact with a solid catalyst, the desulfurization effect is guaranteed, on the other hand, gas can be in uniform contact with the isolating assembly and the collecting assembly in cooperation with operation of the motor, hot spot areas formed by overhigh local temperature in the initiation tower and the coking phenomenon are avoided, and the desulfurization efficiency is improved. And the use safety of the device and the quality of processed gasoline are ensured.

The invention discloses a gasoline filter element assembly machine and a using method thereof, and belongs to the technical field of gasoline filter element assembly.The gasoline filter element assembly machine comprises a workbench, a plurality of filter material positioning mechanisms are linearly arranged on the side wall of the workbench at equal intervals, and paper filter materials to be glued are arranged on the filter material positioning mechanisms; a downward pressing mechanism is arranged at each circular opening in the upper surface of the workbench, an end cover is arranged at the output end of each downward pressing mechanism, the filter material positioning mechanism comprises a cylinder, a cover body and a chassis, a limiting plate is arranged on the side wall of the cylinder, the front edge of the limiting plate can make contact with a crease of a paper filter material, and a gluing mechanism is arranged above the cylinder. The folding marks of the paper filter material are limited, deformation, deviation and adhesion of the folding marks during gluing are avoided, the design can be adjusted to adapt to filter materials with different folding mark numbers, universality is improved, glue brushing is guided, glue consumption is reduced, overflowing and hole blocking are prevented, the filter area is guaranteed, the process is simplified through integrated design, the rejection rate is reduced, and the filter performance and efficiency are both considered.

The invention particularly relates to a control method applying an unmanned aerial vehicle and based on multi-modal characteristics of a fire source, and relates to the technical field of fire safety. Acquiring multi-modal data of a fire source in real time; comprehensively estimating the heat power of the fire source; correcting combustion intensity; and quantitative calculation of fire extinguishing agent demand. An infrared imaging sensor, a visible light camera and a gas sensor array are integrated, a multi-mode fire source sensing system is constructed, the sensing limitation that a traditional fire extinguishing system only depends on single temperature or image is broken through, fire source temperature distribution, flame forms and combustion gas concentration changes can be comprehensively captured, and complete data support is provided for fire behavior judgment; the thermal power of a fire source is estimated in a fusion manner, a fuel type is combined to calibrate a correction coefficient, a differential quantitative calculation model is established according to liquid and solid fire extinguishing agents, fire disasters of different fuels such as wood, gasoline and plastic are adapted, and economy and fire extinguishing reliability are both considered.

The invention discloses an electric vehicle charging station and a charging pile carbon popularization method. A geographic boundary is determined to be Shandong Province, two types of vehicles i1 (seven or less gasoline private cars) and i2 (heavy-duty diesel trucks) are adapted, based on data such as charging pile monitoring and block chain evidence storage, according to related standard specifications, project boundaries and emission sources are defined, emissions under a datum line scene, a carbon benefit scene and a V2G scene are calculated in sequence through a formula, and after emission reduction is obtained, the emission reduction is calculated. According to rules, rights and interests are divided, incentives of individuals, operation units and the like are implemented, protocol filing and data archiving are completed at the same time, and accuracy and compliance of accounting and application are ensured through multi-dimensional verification.

The invention belongs to the field of methanol generators, and provides a methanol-powered small portable energy-saving generator set which comprises an upper bracket and a lower bracket, a plurality of rollers are mounted at the bottom of the lower bracket, a mounting plate is fixedly mounted on the upper bracket through a fixing rod, and a methanol engine and a generator are fixedly mounted on the mounting plate. The device does not need to be started by gasoline and is started by single fuel (methanol), the device is more environment-friendly, after the device is started for power generation, vibration generated during operation of the methanol engine is used as power, heat generated during operation of the methanol engine is extracted and temporarily stored in the heat storage assembly, and when the temperature is low, the heat storage assembly is started, so that the power generation efficiency is improved. The heat storage assembly can release heat to heat methanol in the methanol box, compared with electric heating in the prior art, the device is more energy-saving, the heat storage assembly can be recycled, a large amount of electric power can be saved, and the device is energy-saving and environment-friendly.

The invention relates to a method for preparing a gasoline component and an aviation fuel component through ethylene oligomerization, which comprises the following steps: contacting an ethylene-containing raw material with a first catalyst to carry out a first oligomerization reaction to obtain a first oligomerization product; the first catalyst comprises an FER structure molecular sieve; contacting the first oligomerization product with a second catalyst filled in the fixed bed reactor to carry out a second oligomerization reaction so as to obtain a second oligomerization product; the second catalyst is a molecular sieve catalyst and / or an amorphous silica-alumina catalyst; carrying out gas-liquid separation on the second oligomerization product to obtain a gas product and a liquid product, and carrying out distillation separation on the liquid product to obtain a C5-C9 fraction and a C9 + fraction; according to the method provided by the invention, the ethylene conversion rate is high, and the yield of C9 < + > fraction in the liquid product can be obviously improved.

The invention provides a heavy oil cracking and separating process based on supercritical carbon dioxide cooperation, and relates to the technical field of industrial oil refining. Comprising the following steps: fully mixing heavy material oil with supercritical carbon dioxide, adding the mixture into a microwave reactor, and carrying out cracking reaction under the action of a microwave field to obtain a cracking mixture; placing the cracking mixture in a supercritical separator, enriching light cracking products in a supercritical carbon dioxide phase and precipitating heavy components and impurities in a heavy phase by controlling the temperature and pressure in the supercritical separator, and separating the supercritical carbon dioxide phase from the heavy phase; performing vacuum flash evaporation or low-temperature separation on the supercritical carbon dioxide phase to obtain a gasoline fraction, a diesel fraction and C1-C4 cracked gas; through a triple core mechanism, the yield and quality of light oil which are far higher than those of a coking technology are obtained at the cost far lower than that of a hydrogenation technology.

The invention belongs to the technical field of post-treatment of exhaust gas discharged by a mobile source, and particularly relates to a monolithic catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: fully mixing the raw materials, namely the molecular sieve, the soluble metal salt, the deionized water, the silane coupling agent, the zirconium silica sol, the dispersing agent, the deionized water and the pH regulator, and then putting the mixture into a circulating type stirring ball mill for one-step grinding and pulping; soaking a honeycomb ceramic carrier in the prepared slurry, repeating for multiple times, and then drying and roasting at high temperature; and placing the roasted monolithic catalyst in an activation atmosphere, and carrying out high-temperature activation treatment. Active metal elements in the prepared monolithic catalyst are uniformly distributed, the stability and activity of a catalytic coating are enhanced, and the monolithic catalyst can be widely applied to catalytic treatment of waste gas discharged by moving sources such as diesel vehicles and gasoline vehicles, and has important environmental protection significance and huge economic value.

An internal-combustion engine control device and a filter regeneration method according to the present invention are used for an internal-combustion engine fueled by gasoline and including a filter that traps particulate matter in exhaust gas. When regeneration of the filter is required, fuel cut control for temporarily stopping supply of fuel to the internal-combustion engine is performed to burn off the particulate matter trapped in the filter, and the fuel cut control is repeated while performing exhaust temperature control for increasing the temperature of the exhaust gas of the internal-combustion engine. This makes it possible to prevent particulate matter (PM) from remaining unburned in a filter regeneration process.

The invention discloses a continuous production process for preparing special asphalt by a co-carbonization method, which comprises the following steps: by taking petroleum slurry and coal pitch as basic raw materials, adding an initiator to form a co-carbonization raw material, preheating the raw material by a heating furnace, feeding the preheated raw material into a reaction tower, and carrying out co-carbonization reaction at specific temperature and pressure in a mixed gas atmosphere to obtain the special asphalt. Special asphalt generated by the reaction is distilled out from the bottom of the reaction tower, gasoline, diesel oil and normal-pressure residual oil are separated from light components distilled out from the tower top through normal-pressure distillation, and then wax oil and heavy oil are further separated from the normal-pressure residual oil through reduced-pressure distillation. The process is not only suitable for producing impregnated asphalt, asphalt binder and coated asphalt required by lithium ion battery graphite negative electrode materials, and realizes industrial continuous preparation of special asphalt, but also all performances of the product meet index requirements. Meanwhile, by-products such as gasoline, diesel oil, wax oil and heavy oil are synchronously and efficiently separated and recovered, and the recovery rate of the by-products reaches 100%. The reaction conditions are mild, and the production efficiency and the resource utilization rate are remarkably improved.

The invention relates to the technical field of generator silencers, in particular to a mute variable-frequency gasoline engine generator silencer and a production process. Comprising an air inlet assembly, an installation assembly, a front end cover net plate, front end cover cotton, a silencer upper cover, an upper cover net plate, upper cover cotton, a silencer lower cover, a lower cover net plate, lower cover cotton, a front partition plate, a rear partition plate, a front silencing pipe, a plurality of plugs, a rear silencing pipe, a silencer rear end cover, a rear end cover net plate, rear end cover cotton, a silencing bag, silencing bag cotton, a silencing bag net plate and an air outlet pipe. The upper cover cotton is arranged between the silencer upper cover and the upper cover net plate, the lower cover cotton is arranged between the silencer lower cover and the lower cover net plate, the silencer upper cover is fixedly connected with the silencer lower cover, and the front partition plate and the rear partition plate are both connected with the upper cover net plate and the lower cover net plate. In this way, the technical problems that in the prior art, due to the fact that silencing cotton in a silencer is manually added into an interlayer, the number of the added silencing cotton cannot be guaranteed, and the uniformity is poor are solved.