68 results about "Petroleum processing" patented technology

The invention belongs to the technical field of petroleum processing, and particularly relates to a catalyst and a preparation method and application thereof. The raw materials of the catalyst comprise a metal active component, a carrier and an auxiliary agent, the metal active component is sulfides of Mo and Ni elements, the carrier is spherical gamma-Al2O3 of 0.5-1 mm, and the auxiliary agent is P; the carrier is modified by using the metal active component and the auxiliary agent to serve as the catalyst. The high-activity catalyst is synthesized by adopting the strategy of changing the roasting temperature, adding the additive for doping modification and changing the molar ratio of metal active components, the additive is combined with surface aluminum atoms, the framework strength is enhanced, pore channel collapse caused by acid / water erosion is reduced, the water resistance and acid resistance of the catalyst are improved, and the catalytic reaction activity is further improved. The catalyst disclosed by the invention is accurate and controllable in structure, can be synthesized in batches, and can be applied to the co-catalytic hydrogenation process of biomass pyrolytic oil and / or a model compound thereof and petroleum distillate oil and / or VR.

The invention relates to a combustion type multi-target material flow heating furnace and process for petroleum processing, the heating furnace comprises a main heating furnace and an auxiliary heating furnace integrated with the main heating furnace, the main heating furnace is provided with a convection chamber and a radiation chamber which are arranged up and down, and a first material flow enters the radiation chamber to be heated to a first final temperature after being preheated by flue gas of the convection chamber; at least one second stream is heated in the radiation chamber and then enters at least one auxiliary heating furnace for heat compensation to a second final temperature, and flue gas of the auxiliary heating furnace is introduced into the convection chamber for waste heat recovery. The convection chamber is provided with a saturated steam heat exchange pipeline and an air preheating heat exchange chamber, and the upstream of the main heating furnace is integrated with a gas turbine or equipment meeting specific combustion conditions to achieve waste heat gradient utilization. Through integration of the main furnace and the auxiliary furnace and multi-target material flow graded heating, the heating efficiency is improved, the energy consumption is reduced, and the device is particularly suitable for synergistic heating of primary tower bottom oil and atmospheric tower bottom oil in crude oil distillation.

The invention relates to the technical field of petroleum processing, and particularly discloses a heavy oil efficient delayed hydrocracking system and process method.Raw oil, a retarder and hydrogen are mixed at the front end of an inlet of a heating furnace, heated and then driven by the hydrogen to rapidly flow into a delayed hydrocracking reactor; the retarder and hydrogen synergistically act to maintain stable properties in the material conveying process, and the hydrocracking reaction is concentrated in the reactor; and distilling the reaction product through a fractionating tower to obtain different fractions, and refluxing 85-90% of residual oil for retreatment. The retarder is introduced, a conventional hydrogen feeding mode is changed, hydrogen drives materials to rapidly flow, the retention time of the materials in a furnace tube and a pipeline is remarkably shortened, the retarder promotes hydrogen to be activated to form hydrogen free radicals, and the retarder and the hydrogen free radicals interact to maintain property stability of the materials in the transportation process; the hydrocracking reaction is carried out in a delayed hydrocracking reactor. Raw material loss is avoided, green coke of a reaction system is reduced, and long-period stable operation of the device is guaranteed.

This invention belongs to the field of petroleum processing technology, and specifically relates to a production apparatus and method for low-pour-point base oil for aviation hydraulic oil. The production apparatus and method for low-pour-point base oil for aviation hydraulic oil includes the following steps: Hydrorefining of the oil, where the feedstock oil undergoes hydrodesulfurization and dearomatization in a two-stage series process to produce hydrorefined oil with <1% aromatics and <1 mg / kg sulfur content; Fine fractionation of the oil, specifically: the hydrorefined oil is finely fractionated in a fractionation tower to obtain hydrorefined distillate oil at 230℃~280℃; Molecular sieve dewaxing, specifically: the 230℃~280℃ hydrorefined distillate oil is subjected to deep removal of n-alkanes using a 5A molecular sieve, lowering the oil's pour point to below -75℃, producing low-pour-point, low-aromatic aviation hydraulic oil base oil. This invention uses a combined process of "low-pressure hydrorefining-molecular sieve dewaxing" to produce a low-sulfur, low-aromatic, low-pour-point base oil with less than 1% aromatics. The production method has the advantages of low investment and ease of implementation.

The utility model belongs to the technical field of petroleum treatment, and particularly relates to an automatic drainage device which comprises an installation shell. The real-time monitoring mechanism comprises a transfer box fixedly arranged at the bottom of the mounting shell, the transfer box vertically communicates with an inlet pipe with one end located at the bottom of the mounting shell in the first direction, and the end, corresponding to the lower portion of the mounting shell, of the inlet pipe in the height direction of the transfer box is in a horn mouth shape; one end of the water content sensor extends into the inlet pipe, the signal converter is mounted at the top of the water content sensor and located in the mounting shell, a temperature sensor is fixedly arranged between the mounting shell and the transfer box, and an outlet pipe is fixedly arranged on the transfer box in the length direction and with the diameter height consistent with the height of the horn mouth. The water separation device is simple in structure, unattended operation is achieved, meanwhile, when a user separates water in liquid, whether the water is drained or not is automatically judged, the opening and closing conditions of the valve are automatically controlled, and people can conveniently use the water separation device.

The utility model discloses a device for extracting petroleum from petroleum residues, which belongs to the field of petroleum processing and comprises a filter box, a discharge pipe fixedly mounted on the filter box, a support column fixedly mounted on the filter box, a first filter plate fixedly mounted in the filter box and obliquely arranged, and a stirring mechanism fixedly mounted on the support column, the stirring mechanism comprises a stirring box body with a semicircular bottom, the output end of the first motor penetrates through the stirring box body, extends into the stirring box body and is fixedly provided with a rotating rod rotationally connected with the stirring box body, and the rotating rod is fixedly provided with a plurality of uniformly distributed stirring rods. According to the extraction device, the stirring rod continuously stirs and scatters petroleum residues in the stirring box body to avoid accumulation and adhesion of the petroleum residues, so that petroleum remaining in the device can be better separated, drips into the filter box through the dripping holes in the door plate, is filtered through the first filter plate and enters the filter box, and compared with pure filter plate filtration, the petroleum residue extraction efficiency is improved. The filtering efficiency is higher.

The utility model relates to the technical field of petroleum processing, in particular to a heat source utilization device for an aromatic hydrocarbon extraction process, which comprises a medium-pressure superheated steam generating device, a steam exhaust port of the diesel oil hydrogenation steam turbine is communicated with an inlet end of the desuperheater; and the outlet end of the desuperheater and the outlet end of the temperature and pressure reducer are connected in parallel and then are respectively communicated with the steam inlet of the stripping tower reboiler, the steam inlet of the recovery tower reboiler, the steam inlet of the regeneration tower reboiler, the steam inlet of the benzene tower feeding heater and the steam inlet of the toluene tower reboiler. According to the utility model, surplus low-pressure superheated steam discharged by the diesel hydrogenation steam turbine is used as a heat carrier of the stripping tower reboiler, the recovery tower reboiler, the regeneration tower reboiler, the benzene tower feeding heater and the toluene tower reboiler, so that the use amount of medium-pressure superheated steam is reduced, and the recycling of the surplus low-pressure superheated steam is realized.

The invention discloses a formula and application of a petroleum hydrocarbon degradation complex microbial inoculant, and relates to the technical field of petroleum processing. The invention creatively embodies that three aspects of a degradation strain screened from petroleum hydrocarbon polluted soil, a petroleum hydrocarbon degradation microbial inoculum for the petroleum hydrocarbon polluted soil and an engineering technology for repairing the petroleum hydrocarbon polluted soil are improved, and the ecological construction method of the multifunctional composite microbial inoculum relates to strain selection, functional collocation and ecological benefit consideration of the strain selection, the functional collocation and the ecological benefit consideration of the multifunctional composite microbial inoculum. Corresponding functional strains need to be selected in combination with the functions of the strains, and the complex microbial inoculant is constructed by applying an ecological analysis method.

The invention relates to the field of waste gas treatment, and discloses a volatile gas treatment device for petroleum processing, the volatile gas treatment device comprises a temperature control assembly arranged outside a catalytic chamber, the temperature control assembly outside the catalytic chamber is composed of a mounting pipe frame, a mounting frame I, blades and an adjusting assembly, the mounting pipe frame is arranged on the outer side of the catalytic chamber, and the mounting pipe frame is hollow; the volatile gas treatment device comprises a first mounting frame, the first mounting frame is arranged on a mounting pipe frame, a plurality of blades are arranged in the first mounting frame, mirror surface stickers are arranged on the front faces of the blades, and the back faces of the blades are coated with black paint. In order to solve the problems that an existing RCO electric control temperature control is prone to faults, depends on heat preservation materials and needs extra dust removal, temperature control and dust removal integration is achieved through a sunny side adjusting assembly and double-face blades for temperature control, blade black paint and wind blocking strips for heat preservation, and a hollow pipe frame and a Venturi pipe, and the structure is simplified.

The application discloses a multistage oil-water separator applied to the field of petroleum, and belongs to the technical field of petroleum processing. The roller in the coarse filter assembly can rotate and coarsely filter oil-water through coarse filter holes, and the flowability of oil-water in the oil-water separation tank is improved. Large-particle impurities in the oil-water are located inside the roller, the fine filter holes on the filter cylinder can perform secondary fine filtering on the oil-water, so that the fine-particle impurities in the oil-water can be separated, the small-particle impurities are located between the roller and the filter cylinder, the multistage separation of oil-water is realized, the filtering effect is improved, the oil dirt and impurities are scattered by the screw conveying blade one in the roller and the screw conveying blade two in the filter cylinder, the separation effect is further improved, the separation time is greatly shortened, the separated oil floats on the upper layer of water, and the part of the oil left after the water is discharged from the oil-water separation tank is the oil, so that the oil can be collected and treated subsequently.

The invention discloses a soil pollution key supervision unit classification and grading management and control accounting method and system, and relates to the technical field of soil pollution risk management and control and supervision. And calculating a management and control score by adopting an assignment scoring method and a sorting scoring method, dividing the enterprises into low, medium and high attention levels according to the management and control score, the self-monitoring Es and the peripheral monitoring standard exceeding multiple Ep, and generating differentiated management suggestions. The system comprises a data acquisition module, a score accounting module, a classification and grading module, a management suggestion module and a display module, and realizes data real-time acquisition, automatic accounting and result output. The method overcomes the defects of single index and subjective judgment in the prior art, improves the scientificity of monitoring and the accuracy of management, is suitable for industries such as non-ferrous metal metallurgy, petroleum processing, chemical engineering, coking, electroplating, leather making and the like, and has high efficiency and popularization value.

The utility model discloses a fractionating tower for petroleum refining, which belongs to the technical field of petroleum processing equipment and comprises a fractionating tower body for petroleum refining and processing and a circular fixing seat for fixing, the bottom of the fractionating tower body is connected with the top of the fixing seat, and a square plate and a long plate are symmetrically arranged on two sides of the fixing seat respectively; a water tank is fixed to the top of the square plate and communicated with the condensation column through a connected water pipe, the top of the long plate is connected with a heating box used for preheating crude oil, and the heating box is located below the condensation column. A condensing pipe for circulating condensed liquid is arranged in the condensing column in a penetrating manner, one end of the condensing pipe is connected with the side wall of the fractionating tower body, and a movably connected cover plate is arranged at the top of the fractionating tower body. According to the petroleum refining device, petroleum refining processing can be accelerated through the arranged condensate water, a petroleum stock solution can be preheated through the temperature carried by the condensate water, energy loss is reduced, and the practicability of the device is improved.

The invention discloses a reaction system for producing low-carbon olefin cracking gas and a cracking reaction method, and belongs to the field of petroleum processing. The reaction system comprises a catalyst regenerator, an incinerator and a hydrocarbon raw material supply end; the incinerator is provided with a shell pass and a tube pass; the hydrocarbon raw material supply end is communicated with the tube pass of the incinerator; the catalyst regenerator is communicated with the shell pass of the incinerator; combustion reaction occurs in the shell pass of the incinerator, and heat is provided for the tube pass. According to the invention, the regeneration flue gas after oil slurry heat compensation regeneration is used as the fuel to supply heat to the hydrocarbon cracking reaction, so that the use of fuel gas is reduced, and ethylene and propylene are produced while the energy consumption is reduced. Other characteristics and advantages of the invention will be described in detail in the subsequent specific implementation mode.

This application relates to the fields of petroleum processing catalysts and solid waste resource utilization technology, specifically disclosing an iron sulfide catalyst for heavy oil hydrocracking and its application. The active component of this iron sulfide catalyst for heavy oil hydrocracking includes non-stoichiometric iron sulfide Fe obtained from coal combustion dust through magnetic separation. 1‑x S, where x ≤ 0.2. The iron sulfide catalyst Fe for heavy oil hydrocracking of this application. 1‑x S has a unique hexagonal crystal structure and surface properties. When used as a catalyst for heavy oil hydrocracking, it has significantly better catalytic efficiency than traditional hydrocracking catalysts, lower cost, longer service life, and stronger resistance to carbon buildup.

The application discloses a kind of laser solid-phase synthesis atomic level catalyst and its preparation method and application.The preparation method includes: forming solid-phase reaction system, the solid-phase reaction system includes carbon-based material with multiple anchor points on surface and metal salt precursor loaded on the carbon-based material, the metal salt precursor is combined with the anchor point;The solid-phase reaction system is irradiated by laser, so that the metal salt precursor is reduced to form atomic level catalyst.The atomic level catalyst prepared by the application has various types, including single atom, diatomic, single atom alloy, diatomic alloy, atomic cluster, etc.The preparation method has simple process, strong universality, is suitable for various carbon-based materials containing anchor points and metal elements with catalytic activity, and can mass-produce atomic level catalyst, to meet the demand of various catalysts in chemical industry, petroleum processing industry, energy, pharmaceutical industry and environmental protection, etc.

The invention belongs to the technical field of petroleum processing, and particularly relates to an experimental device, an experimental system and an experimental method for testing oil-water separation performance, the experimental device comprises a testing pipe section, the testing pipe section is used for containing first to-be-tested liquid and is internally provided with a cavity, and two opposite side walls of the testing pipe section are provided with visual windows; the bottom wall of the test pipe section is provided with a water outlet and a first mounting groove, the top wall of the test pipe section is provided with an injection port for injecting second to-be-tested liquid, and the second to-be-tested liquid is oil-containing liquid; the drainage pipe is communicated with the drainage port and is used for discharging the first to-be-tested liquid and the second to-be-tested liquid after the experiment is completed; the functional component mounting assembly is detachably connected with the inner wall of the first mounting groove and used for mounting a functional component, the cavity is used for oil-water separation of the second to-be-detected liquid and the first to-be-detected liquid on the functional component, and the functional component is a corrugated plate polymer component or a cylinder polymer component. The experimental device is high in universality, and the experimental efficiency can be improved.

The utility model relates to the technical field of petroleum processing, and discloses a hydraulic centralizer, which comprises an upper cross beam and a lower cross beam, the upper cross beam and the lower cross beam are hollow cylinders with the same size, an inner sleeve is fixedly connected between the upper cross beam and the lower cross beam, and an outer sleeve is fixedly connected between the upper cross beam and the lower cross beam. The petroleum processing tool is characterized in that six arc-shaped frameworks which are vertically symmetrical in shape and are distributed in a circumferential array mode are fixedly connected to the position, located on the outer side of the inner sleeve, between the upper cross beam and the lower cross beam, and a circular framework is fixedly connected to the middle of each arc-shaped framework. And when the centralizer is subjected to extrusion force of different degrees, the pressure is dispersed through elastic deformation, so that the centralizer more accurately and stably performs straight movement, the curvature of a borehole is controlled, meanwhile, the deviation of a drill bit is reduced, and the whole structure is simple and high in practicability.

The utility model provides a distillation device for petroleum refining belongs to petroleum processing technical field to solve the problem that the flange hole position of tower body is difficult to fast accurate alignment when the existing atmospheric distillation column is in the upper and lower two tower body splicing, is affected by hoisting error, tower body dead weight, including distillation tower main part, fixed butt joint block, transmission box, lifting ring, auxiliary positioning assembly and protection assembly, a plurality of fixed butt joint blocks are fixedly connected in the front and back sides of the top of the tower body of distillation tower main part, a plurality of protection boxes are fixedly connected in the front and back sides of the top of the tower body of distillation tower main part, a plurality of auxiliary positioning assemblies are arranged in the inside and above a plurality of fixed butt joint blocks, and a plurality of protection assemblies are arranged on the top of a plurality of protection boxes, the utility model realizes the auxiliary accurate positioning when the tower body splicing, eliminates the flange butt joint deviation caused by hoisting error, drives the shielding plate protection lifting ring automatically when the auxiliary tower body positioning, reduces the corrosion risk.

The invention provides a method for modifying thickened oil by utilizing a biomass hydrothermal liquefaction water-phase byproduct, and relates to the technical field of petroleum processing. The method provided by the invention comprises the following steps: mixing the biomass hydrothermal liquefaction water-phase byproduct and the thickened oil to form a reaction system, and carrying out hydrothermal cracking reaction to obtain the modified oil, the mass ratio of the biomass hydrothermal liquefaction water-phase byproduct to the thickened oil is (3-8): 10, the hydrothermal cracking reaction temperature is 200-320 DEG C, and the hydrothermal cracking reaction time is 6-30 hours. The hydrothermal liquefaction water-phase byproduct is used as a conversion water source for the hydrothermal cracking reaction of the thickened oil, active hydrogen upgrading is provided for the modification of the thickened oil, the viscosity reduction and modification of the thickened oil are realized, meanwhile, the treatment cost of wastewater generated when the target product bio-oil is prepared through the hydrothermal liquefaction reaction of the biomass is reduced, and the economic benefit is improved.

The invention relates to the technical field of petroleum processing, and discloses a crude oil sand filtering device for petroleum processing, which comprises a main body shell, a feeding pipe is fixedly connected to the left side of the main body shell, a discharging tank is fixedly connected to the right side of the main body shell, a sand filtering mechanism is arranged at the bottom of the main body shell, and a reinforcing mechanism is arranged in the front side of the sand filtering mechanism. And a supporting mechanism is arranged at the top of the main body shell. According to the crude oil sand filtering device for petroleum processing, through the arranged sand filtering mechanism, petroleum crude oil enters the main body shell through a feeding pipe, and solid impurities in the petroleum crude oil entering the main body shell are precipitated downwards under the action of gravity, so that the solid impurities in the petroleum crude oil downwards penetrate through a liquid stabilizing filter plate and enter a precipitation box; the petroleum crude oil in the settling box is separated from the petroleum crude oil in the main body shell by the liquid stabilizing filter plate, so that the petroleum crude oil in the settling box cannot move rightwards along with the petroleum crude oil in the main body shell.

The invention relates to the technical field of petroleum processing catalysts and solid waste recycling, and particularly discloses an iron sulfide catalyst for heavy oil hydrocracking and application of the iron sulfide catalyst. The invention relates to an iron sulfide catalyst for hydrocracking heavy oil, the active component of the iron sulfide catalyst comprises non-stoichiometric iron sulfide Fe < 1-x > S obtained by magnetic separation from coal combustion dust, and x is less than or equal to 0.2. The iron sulfide catalyst Fe < 1-x > S for hydrocracking of heavy oil has a unique hexagonal crystal structure and surface properties, has the catalytic efficiency obviously superior to that of a traditional hydrocracking catalyst when being used as a catalyst for a hydrocracking reaction of heavy oil, and has the advantages of lower cost, longer service life and stronger carbon deposition resistance.

The utility model relates to the technical field of petroleum processing, in particular to an electric heating device for reducing viscosity of thickened oil. The thick oil viscosity reduction electric heating device comprises multiple oil pipes and a heating cable, each oil pipe is composed of an outer pipe and an inner pipe, and multiple sets of connecting plates are fixedly installed between the outer pipes and the inner pipes. Each set of connecting plates comprises two connecting plates, inserting grooves are formed in the opposite faces of the two connecting plates, and a mounting frame is inserted between the two inserting grooves in the same set of connecting plates. According to the heavy oil viscosity reduction electric heating device, when the heating cable needs to be disassembled, the heating cable in the heating cable can be driven to move synchronously by extracting the mounting frame, so that the heating cable can be quickly extracted from the oil pipe to be disassembled, and the whole disassembling process is very convenient and quick; therefore, the difficulty of later maintenance of the heating cable by workers can be reduced.

The invention relates to the technical field of petroleum processing, and discloses a petroleum processing raw material pretreatment device which is characterized in that a top cover is fixedly connected to the top surface of a lifting disc, a driving motor is fixedly mounted on the top surface of the top cover, and a rotating rod rotatably sleeves the center position in a stirring disc; the stirring blades are fixedly connected to the periphery of the outer surface of the rotating rod. A driving motor is started, a rotating rod rotates to drive stirring blades to stir raw materials in a stirring disc, after the raw materials are stirred, the raw materials fall into an extrusion box, a hydraulic pump is started, an arranged clamping circular ring and an arranged clamping sleeve ring move towards the center position in the extrusion box, and the raw materials are extruded into the extrusion box. Water and salt doped in the raw materials can be extruded out, the extruded water can flow out through the dewatering plate, the salt can be drawn out through a drawing groove by a worker, the operation is convenient and simple, and the pretreatment working efficiency of the raw materials is improved.

The invention relates to the technical field of petroleum processing, and discloses a pre-mixing type hydrogenation reactor for petroleum processing, which comprises the following steps: acquiring current operation state data of the pre-mixing type hydrogenation reactor and environment monitoring data in the reactor; matching an adjustment factor in a preset rule base according to a load weight value in the current operation state data and an environment pressure value in the environment monitoring data; determining a safe lifting speed limit value according to the adjustment factor and the basic lifting speed of the pre-mixing type hydrogenation reactor, generating a lifting control instruction, and regulating and controlling lifting equipment in the pre-mixing type hydrogenation reactor according to the lifting control instruction; adjusting a weight parameter of the safe lifting speed limit value based on the vibration data of the lifting equipment, and generating a target safe lifting speed limit value according to the adjusted weight parameter; lifting the premixed hydrogenation reactor to a target state according to the target safe lifting speed limit value; the efficiency of the hydrogenation reactor in the working process can be improved.

The invention relates to the technical field of petroleum treatment, in particular to a petroleum pipeline valve which comprises a cross-shaped cavity and a plugging cavity rotationally connected to the cross-shaped cavity, a plurality of linkage sliding columns are fixedly connected to the plugging cavity, a valve sliding column is slidably connected to the linkage sliding columns, the valve sliding column is slidably connected into the cross-shaped cavity, and the cross-shaped cavity is fixedly connected to the plugging cavity. The valve sliding column is provided with a communicating through hole, the plugging cavity is fixedly connected with a linkage cylinder, the linkage cylinder is rotationally connected with a lifting lead screw, the lifting lead screw is in transmission connection with the valve sliding column through threads, the cross-shaped cavity is fixedly connected with a limiting circular ring, the limiting circular ring makes contact with the plugging cavity, and the cross-shaped cavity is fixedly connected with a transverse supporting circular ring. Two square support sliding columns are connected to the transverse support circular ring in a sliding mode, friction bent plates are fixedly connected to the inner ends of the two square support sliding columns, and the two friction bent plates make contact with the blocking cavity, and the petroleum sampling device has the beneficial effect that the quality of different petroleum layers can be tested by sampling and extracting petroleum.

The invention relates to the field of petroleum processing, and discloses an efficient spiral-flow type oil-gas-water three-phase separator which comprises a separation tank and further comprises a spiral-flow unit arranged in the separation tank and communicated with a feeding port in the separation tank; the control unit is arranged in the separation tank and is connected with a discharge pipe on the separation tank; the rotational flow unit comprises a rotational flow tank, a separation tank and a plurality of rotational flow nozzles, wherein the rotational flow tank is arranged in the separation tank and is fixed in the separation tank through a retainer; according to the invention, rapid separation is realized, compared with a traditional gravity settling separation mode, the separation time is shortened, the separation efficiency is improved, a relatively high separation effect can be realized in a relatively small equipment volume, and the occupied area and the cost of the equipment are reduced; the problems of water inclusion in an oil phase, oil mixing in a water phase and the like caused by liquid level fluctuation are avoided, the stability of separation quality is ensured, and the separation efficiency is further improved.

The invention discloses a reaction system and method for producing low-carbon olefin through hydrocarbon cracking, and belongs to the field of petroleum processing. The reaction system comprises an oxygen-deficient regenerator, an incinerator and a hydrocarbon raw material supply end; the incinerator is provided with a shell pass and a tube pass; the hydrocarbon raw material supply end is communicated with the tube pass of the incinerator; the oxygen-poor regenerator is communicated with a shell pass of the incinerator; combustion reaction occurs in the shell pass of the incinerator, and heat is provided for the tube pass. According to the invention, the regenerated flue gas is used as a fuel to supply heat to the hydrocarbon cracking reaction, so that the use of fuel gas is reduced, and ethylene and propylene are produced while the energy consumption is reduced. Other characteristics and advantages of the invention will be described in detail in the subsequent specific implementation mode.

The invention belongs to the technical field of petroleum processing, and particularly relates to an oil-water-gas separation device in petroleum exploitation, which comprises a separation tank, a feeding pipe is mounted at the top of the separation tank, and the feeding pipe is communicated to the interior of the separation tank; a first filter screen is fixedly connected to the interior of the separation tank; a second filter screen is fixedly connected to the interior of the separation tank; a separation plate is fixedly connected to the interior of the separation tank; the isolation plate is arranged on one side, far away from the feeding pipe, in the separation tank; the top of the separation tank is communicated with a gas outlet pipe; the inner side wall of the bottom of the separation tank is communicated with a water outlet pipe; by arranging the first filter screen and the second filter screen in the separation tank, part of gravel raw materials in the petroleum raw materials can be intercepted, so that the purity of oil, water and gas treated by the separation tank can be improved, and the problems that gravel impurities in the petroleum raw materials affect and damage a subsequent petroleum treatment device are solved.

The utility model relates to petroleum processing technical field, concretely is a diesel hydrogenation raw material multistage backflushing device, including the box, the inside of box is provided with filter assembly, filter assembly includes filter bowl, solenoid valve no.

The utility model discloses a filtering device for petroleum processing, which relates to the technical field of filtering for petroleum processing and comprises a filtering device. The filtering device is composed of a support, a material conveying barrel and a filtering barrel, the material conveying barrel is installed at the upper end of the support, the filtering barrel is installed in the material conveying barrel, an extrusion mechanism is installed in the filtering barrel, a guide-in pipe is installed at the upper end of the material conveying barrel, and the bottom end of the guide-in pipe extends into the filtering barrel; the discharging barrel is installed at one end of the conveying barrel, the jacking mechanism is installed in the discharging barrel, the collecting tank is installed at the bottom end of the conveying barrel, and the cooling mechanism is installed at one end of the conveying barrel. According to the filtering device disclosed by the utility model, through the double-barrel arrangement of the material conveying barrel and the filtering barrel, the filtering area of crude oil can be increased, the filtering efficiency of the crude oil is improved, the crude oil is extruded through the extruding mechanism, the pressure on the crude oil is increased, and the separation efficiency of the crude oil and solid garbage is improved.