126results about "Refining by filtration" patented technology

Belonging to the field of petrochemical engineering, the invention discloses a catalytic slurry oil purification device, which comprises a tank body, and a feed end and a discharge end respectively arranged at two ends of the tank body. An upper partition plate and a lower partition plate are fixedly connected to the inner wall of the tank body, a discharging opening is formed in the upper partition plate, and a feeding opening is formed in the lower partition plate; the interior of the tank body is divided into three independent cavities by the upper partition plate and the lower partition plate; according to the scheme, the filter element is sleeved with the hollow cylinder, and the rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a shear force generated by rotation of the first spiral flow deflector can prevent a filter cake on the surface of the filter element from forming a compact thick layer; a filter cake layer can be controlled within a relatively thin thickness range, and the rising speed of the pressure difference is delayed, so that the operation duration of a single filtering period is prolonged; and the single-time continuous treatment capacity of the device is greatly improved.

The utility model relates to the technical field of waste oil regeneration, and discloses a waste white oil alkali washing device which comprises a tank body, a heating assembly is installed on the periphery of the tank body, a sleeve, a servo motor and a feeding pipe are sequentially and fixedly connected to the top of the tank body from left to right, and a liquid discharging pipe is fixedly connected to the bottom of the tank body. A stirring assembly is installed in the tank body, a top ring is slidably connected to the middle of a sleeve, a filtering barrel is fixedly connected to the bottom of the top ring, a connecting pipe is fixedly connected to the top of the top ring, an elastic assembly is installed in the middle of the top ring, a clamping block is slidably connected to the middle of the top ring, and a clamping groove is formed in the middle of the sleeve; and the middle part of the sleeve is slidably connected with a push rod. According to the utility model, firstly, waste white oil is input through the connecting pipe, and larger impurities can be filtered under the action of the filtering barrel at the bottom of the connecting pipe, so that the mixing efficiency of the waste white oil and a sodium hydroxide aqueous solution is ensured, and the impurities are prevented from blocking the pipeline.

The invention relates to a method for treating a feedstock comprising a plastics-derived and / or tyre-derived and / or solid-recovered-fuel-derived pyrolysis oil, which method comprises: b) hydrogenation of the feedstock and a portion of the liquid effluent resulting from the separation step e1) to obtain a hydrogenated effluent; c) hydrotreatment of the hydrogenated effluent to obtain a hydrotreated effluent; d) hydrocracking of the hydrotreated effluent to obtain a hydrocracked effluent; e1) separation of the hydrocracked effluent at high temperature and high pressure to obtain a gaseous effluent and a liquid effluent, a portion of which is recycled upstream of step b); e2) a separation / washing step carried out at low temperature and high pressure, fed with the gaseous effluent and optionally the other portion of the liquid effluent resulting from step e1) and an aqueous solution, to obtain a hydrocarbon effluent freed of its impurities.

Aspects of the present disclosure generally relate to new processes for converting waste plastic. Aspects of the present disclosure also generally relate to new waste plastic conversion plants. In an aspect, a process for converting waste plastic is provided. The process includes heating a waste plastic feed with a dissolution medium to form a mixture comprising an insoluble component and a soluble component. The process further includes separating the soluble component of the mixture from the insoluble component of the mixture. The process further includes contacting the soluble component with a depolymerization catalyst to form a depolymerization product effluent. The process further includes separating a C12+ hydrocarbon from the depolymerization product effluent. The process further includes introducing the C12+ hydrocarbon to the dissolution unit.

The present invention relates to a method for pyrolysis of plastics, particularly waste plastics, comprising the steps of (a) pyrolysis of the plastic in a first pyrolysis reactor to obtain a first pyrolysis product, (b) separation of the pyrolysis residue from the first pyrolysis product in a first separation unit, (c) separation of the pyrolysis residue into a low-solid fraction and a high-solid fraction in a second separation unit, and (d) pyrolysis of the high-solid fraction in a second pyrolysis reactor to obtain a second pyrolysis product. The present invention further relates to a device for pyrolysis of plastics using the method.

A process for reducing injector deposits in an internal combustion engine fuelled with a fuel composition, the process comprising contacting a fuel composition with a metal-selective membrane situated in the fuel delivery system. The reduction of such deposits provides an increase in fuel efficiency, fuel thermal stability, boost in engine cleanliness, improves fuel economy and enables the possibility of using a reduced amount of expensive detergent in the fuel composition.

The present invention relates to a method for treating a feedstock comprising pyrolysis oil from plastics and / or tires and / or solid recovered fuels containing halogenated compounds, said method comprising: a) a hydrotreating step to obtain a partially hydrotreated effluent having a reduced content of halogenated compounds; b) a separation step in which the hydrotreated effluent from step a) and an aqueous solution are fed to obtain a gaseous effluent, an aqueous effluent and a partially hydrotreated hydrocarbon effluent; and c) a step of fluidized bed catalytic cracking or hydrotreating of a petroleum feedstock and / or a feedstock resulting from biomass conversion, in which the partially hydrotreated hydrocarbon effluent is introduced as a co-feed without a prior separate hydrotreatment step at higher temperature and / or pressure, and the mixture of petroleum and / or biomass feedstock and the partially hydrotreated hydrocarbon effluent has a halogenated compound content of 10 ppm or less by weight.

The present invention relates to a method for producing an intermediate fraction and naphtha from a mixed raw material containing a heavy fraction of fossil hydrocarbons, wherein at least 50% by weight of the heavy fraction is a pyrolysis oil fraction of plastics and / or tires and / or recovered solid fuels, the initial boiling point of the compound being greater than 300°C and the final boiling point being less than 700°C, and less than 50% by weight is an aromatic compound content of more than 30% by weight, and the method comprises the following steps: a) a step of hydrogenating the mixed raw material to obtain a hydrogenated effluent; b) a step of hydrocracking the hydrogenated effluent to obtain a hydrocracking effluent; c) a step of separating the hydrocracking effluent to produce at least one gaseous effluent and at least one liquid effluent containing hydrogen; d) a fractional distillation step to produce a naphtha fraction and an intermediate distillate fraction.

The invention discloses a filtering device suitable for aviation kerosene and a filtering method thereof, and belongs to the technical field of aviation fuel purification and filtration. The cylinder shell, the annular supporting ribs and the main filter material form a filter cylinder, kerosene penetrates through the intervals of the annular supporting ribs from outside to inside and gathers in the central positioning shaft to be led out, in a quasi working state, the filter assembly is disassembled and transversely inserted into an inner cavity of the filter element socket, one end of the filter assembly is fixed in the inner cavity of the filter element socket, and the locking piece is driven to amplify thrust through the force amplifier; the pressing rod linearly extrudes the filter element, the threaded transmission sleeve is rotated through the spiral driving rod, so that the piston pressing disc compresses the cotton core at a constant speed, residual oil is recovered from the bottom liquid drainage hole in the axial direction, and the cotton core is taken out after squeezing; the filter element of the same cylinder is not replaced, only the inner-end fine filter layer is replaced by the reducing fine filter layer with a smaller inner diameter, the through-flow area is suddenly reduced, the local flow speed is increased, the surface of a main filter material is reversely washed, and impurities fall off; the reducing step generates secondary high pressure difference, the fiber gap is further compressed, and the precision is improved.

A method of producing useful fuel fluids from solid plastic waste, including loading solid plastic waste matter into a reaction chamber to define a load, subjecting the load to HTP to extract hydrocarbon mixtures, filtering the hydrocarbon mixtures to extract solid matter, and separating the hydrocarbon mixtures into a light fraction (C1 to C25) and a heavy fraction (C26 to C31). The heavy fraction is directed to a first container and the light fraction is directed to a second container. The light fraction is separated into diesel (C8-C25), gasoline (C4-C12), and vapor (C1-C5), and the diesel is directed to a third container, the gasoline is directed to a fourth container, and the vapor is directed to a fifth container. The hydrocarbon mixtures have a carbon number distribution between C1 and C31. The pressure in the reaction chamber is typically between 0.1 and 10 MPa and the temperature in the reaction chamber is between 350 and 500 degrees Celsius. The plastic waste is selected from the group consisting of PS, PE, PP, and mixtures thereof.

The invention relates to the technical field of engines, in particular to a device for oil recovery treatment after engine testing. The recovery container comprises a box body, a magnetic filter plate and a flow baffle; the magnetic filter plate is mounted in the box body and is parallel to the bottom surface of the box body, and a set distance is formed between the magnetic filter plate and the bottom surface of the box body; the flow baffle comprises an upper-layer plate and a lower-layer plate, the upper-layer plate and the lower-layer plate are both perpendicular to the bottom surface of the box body, a set distance is formed between the upper-layer plate and the lower-layer plate, the lower edge of the lower-layer plate is attached to the bottom surface of the box body, the lower edge of the upper-layer plate is attached to the top surface of the magnetic filter plate, and the lower edge of the upper-layer plate is lower than the upper edge of the lower-layer plate. Through an optimized multi-stage filtering structure and reasonable flow field control, efficient purification of recycled diesel oil is achieved, it is ensured that the recycled diesel oil reaches the secondary use standard, and therefore the engine failure risk is reduced, the test run cost is saved, and meanwhile diesel oil waste and environmental pollution are avoided.

This invention relates to the field of petroleum filtration, and particularly to an online backflushing wedge filter element filtration device for petroleum refining. It includes a tank with a through-type upper and lower section, with top covers installed at both ends. A through-pipe runs through both the upper and lower top covers. Several telescopic plates are installed on the lower top cover, with annular plates at the ends of the telescopic plates. A support shaft is installed on the annular plates, and another annular plate is installed on the top of the support shaft. Filtration units are installed between the annular plates. This invention uses a drive assembly to move an adjusting plate between the strip plates, adjusting the gap width between the adjusting plate and the strip plates. This allows it to adapt to different particle sizes and morphologies of impurities in petroleum, solving the contradiction between filtration accuracy and flow rate in traditional filtration devices, as well as the problem of fixed filter gaps in existing technologies that cannot be flexibly adapted.

The application discloses a self-cleaning crude oil wax removal filter system and belongs to the technical field of crude oil conveying and filtering. The system comprises a filter structure installed on a crude oil conveying pipeline. The filter structure comprises a plurality of groups of parallel filter pipe groups. Each group of filter pipe groups is composed of a communication pipe, a filter with an embedded filter screen, a pressure transmitter, a control valve group, a backwashing unit and / or a heating unit, and a control unit. The control unit determines the working condition based on the pressure conveying standard. If the pressure is qualified, the operation is maintained. If the pressure is unqualified, the control valve group is closed, the blowdown valve is opened, and the backwashing unit and the heating unit are started, so that the self-cleaning operation of the inside of the filter pipe group is realized. The application realizes intelligent self-cleaning, guarantees the continuity of crude oil conveying, improves the wax removal filtering efficiency, is suitable for various conveying scenes of waxy crude oil, and can solve the problems of manual cleaning, discontinuous conveying and poor wax removal effect of the traditional filter system.

This invention discloses a device for filtering catalytic oil slurry using ceramic membranes, relating to the field of filtration equipment technology. It includes multiple sets of ceramic membrane mounting assemblies arranged in a ring. Each ceramic membrane mounting assembly includes a ceramic membrane body and an outer cylinder. An upper connecting assembly and a lower connecting assembly are respectively installed at the upper and lower ends of the assembly. The lower connecting assembly is connected to a sinking control assembly. The side wall of the outer cylinder is connected to a filter collection pipe. An upper retainer and a lower retainer are provided between the outer cylinders, with the lower retainer sleeved to the outer cylinder. A rotation mechanism is provided at the center of the upper retainer, and a lifting mechanism is provided on the lower side of the upper retainer. The lifting mechanism drives the lower retainer to move up and down. By lifting the outer cylinder where the ceramic membrane body breaks, and combining this with the sinking control assembly to sink the lower connecting assembly, the ceramic membrane body can be quickly replaced, ensuring the filtration efficiency of the catalytic oil slurry.

The utility model discloses a water bath heating and filtering device which comprises a water bath filtering box, a filtering funnel is connected to the top of the water bath filtering box in an inserted mode, a fixing assembly is arranged between the filtering funnel and the water bath filtering box, and an electric heating pipe is fixedly installed in the water bath filtering box. And four supporting mounting columns are fixedly connected to the bottom of the water bath filter box. According to the utility model, water is added into the water bath filter box through the water inlet pipeline, the water level submerges the conical part of the filter funnel, and the three groups of electric heating pipes are started to heat the water in the water bath filter box; crude oil is poured into the filtering funnel, filtered through the filtering paper and then flows into the material receiving beaker to be collected, a worker observes the speed of the crude oil flowing into the material receiving beaker and judges the fluidity of the crude oil, and convenience is brought to follow-up mining.

Water is combined with an oligomer product that contains an oligomer and an alkyl aluminum catalyst to deactivate the catalyst and form a treated product containing the oligomer and aluminum-containing solids. The aluminum-containing solids then can be separated from the treated product.

A method for treating a feedstock comprising pyrolysis oil of plastics and / or tires and / or recovered solid fuels containing halogenated compounds is disclosed, comprising: a) a hydrotreating step to obtain a partially hydrotreated effluent having a reduced halogenated compound content; b) a separation step feeding the hydrotreated effluent from step a) and an aqueous solution to obtain a gaseous effluent, an aqueous effluent, and a partially hydrotreated hydrocarbon effluent; and c) a petroleum feed steam cracking step in which at least a portion of the partially hydrotreated hydrocarbon effluent is introduced as a co-feed without previously being subjected to another hydrotreating step at a higher temperature and / or pressure, wherein the mixture of the petroleum feedstock and the partially hydrotreated hydrocarbon effluent from step b) has a halogenated compound content of 3 ppm or less by weight.

A process includes receiving, in a heavy oil hydrotreating unit, a solid-free lean stream containing unconverted oil processed from a heavy oil feedstock in a slurry hydroconversion reactor, hydrotreating the solid-free lean stream containing the unconverted oil in the presence of hydrogen and a hydrotreating catalyst in the heavy oil hydrotreating unit under heavy oil hydrotreating conditions, thereby producing a hydrotreated effluent, and recycling at least a portion of the hydrotreated effluent to the slurry hydroconversion reactor.

The present application relates generally to processes, systems, and compositions for removing mercury from liquid hydrocarbons. In one embodiment, the application pertains to a method for removing mercury from hydrocarbons. The method comprises reacting a mercury species within the hydrocarbons with an additive composition to produce a reaction product. The reaction product typically comprises a different speciation for mercury than the original mercury species. The reaction product is then removed from the hydrocarbons. The additive composition employed comprises a sulfur or heteroatom donating substance and a substantially oil-soluble solvent.

A non-petroleum or renewable feedstock containing oxygen and contaminants of metals, gums, and resins is treated by introducing the feedstock into a reactor at a flow velocity of at least 6 m / sec. The feedstock is heated within the reactor and cooled to form a reduced-temperature reactor product. At least a portion of the reduced-temperature reactor product is feed into a hydroprocessing reactor containing a hydroprocessing catalyst to form a hydroprocessed product. The hydroprocessed product is cooled and non-condensable gases, metals and water are separated and removed to form a final product. The final product has an oxygen content that is 60% or less of that of the feedstock, and wherein the final product comprises 25 wt% or less any triglycerides, monoglycerides, diglycerides, free fatty acids, phosphatides, sterols, tocopherols, tocotrienols, or fatty alcohols, from 5 wt% to 30 wt% naphtha, and 50 wt% or more diesel.

The utility model discloses a filtering and separating device for petroleum exploitation, which relates to the technical field of petroleum filtering and comprises an output pipeline, a mounting box is fixedly mounted at the top of the output pipeline, a back plate is fixedly mounted at the top of the mounting box, and a first rotating shaft is rotatably connected in the back plate. A gear is fixedly connected to the outer side of the first rotating shaft in a sleeving mode, a sliding groove is formed in the outer side of the back plate, and a sliding block is slidably connected to the interior of the sliding groove. After mixing is completed, an oil removing agent in the mounting box is conveyed into a second connecting pipe through an output pump, the oil removing agent is conveyed into a first connecting pipe through the second connecting pipe, the oil removing agent can be sprayed through a flow divider to clean a filter screen, therefore, cleaning work can be conducted without disassembling the filter screen, the disassembling time is saved, and the working efficiency is improved. And the practicability is improved.

The invention relates to a treatment system (1) for treating at least one mineral oil, comprising a treatment circuit (2) having an inlet connected to at least one inlet tank (3) containing at least one mineral oil to be treated, and an outlet connected to at least one outlet tank (4) suitable for receiving at least one treated mineral oil. The treatment circuit includes at least one functional decontamination unit. The treatment system is notable in that it comprises: a functional additive assembly (ADD) designed to inject at least one additive into the treatment circuit, which mixes with the at least one oil to be treated to improve its properties; and a control unit (6) designed to regulate the dosage of the injected at least one additive based on several measurements of the intrinsic properties of the oil to be treated after decontamination. Abstract figure: Figure 2

The invention discloses a silicon network cross-linked polyether block polyamide pervaporation membrane as well as preparation and application thereof. The preparation method comprises the following steps: firstly preparing an n-butyl alcohol solution of Pebax, then adding siloxane and an alkali solution, carrying out solution crosslinking to obtain a crosslinked Pebax membrane casting solution, spin-coating the surface of a dried polysulfone ultrafiltration membrane with the crosslinked Pebax membrane casting solution, and drying to obtain the silicon network crosslinked polyether block polyamide pervaporation membrane. The preparation method disclosed by the invention is simple, the Pebax membrane which performs silicon network crosslinking through a one-pot method has the characteristics of short operation flow and high controllability, and the prepared silicon network crosslinked polyether block polyamide pervaporation membrane has relatively high permeability and selectivity and has relatively high adaptability to different feed concentrations.

The application discloses a kind of fouling accumulators and hydrogenation reactors, which is suitable for gas-liquid two-phase coexistence fixed bed reactor, comprising: fouling accumulation unit, which is composed of axially extending central passage and multi-stage annular filling scale inhibitor, the porosity of multi-stage scale inhibitor gradually increases from inside to outside;The shock absorber is arranged above the fouling accumulation unit and has a diameter larger than the outer diameter of the fouling accumulation unit, the shock absorber is spaced apart from the fouling accumulation unit by a distance, for buffering the liquid phase in the material and guiding to the fouling disc to form liquid static pressure, at the same time, the gas phase in the material enters the central passage through the space between the shock absorber and the fouling accumulation unit;After the liquid phase deposits a certain height on the fouling disc, it flows radially along the fouling accumulation unit under the action of liquid static pressure, and realizes staged sedimentation during radial flow. The structure of the shock absorber and the staged fouling design can effectively solve the problems of easy blockage in the bed of the fouling accumulator and premature failure, and poor scale deposition effect caused by the large residual kinetic energy of the feed.

The utility model discloses a light hydrocarbon filtering device, including filter structure, shunt structure, switching structure and filter sand structure, filter structure has the cavity and the feed port of intercommunication cavity, shunt structure is located at the cavity, and the cavity is spaced as feed chamber and filter sand chamber, and has multiple groups of flow channel that links through filter chamber and filter sand chamber, and each group's flow channel is equipped with a plurality, and the feed chamber is communicated feed port, switching structure is movably arranged in shunt structure, and when moving, can open each group's flow channel in turn, and when opening one group's flow channel, closes other group's flow channel, and filter sand structure is arranged in filter sand chamber. The scheme has effectively prolonged the filtration cycle of light hydrocarbon filtering device, alleviated the burden of operating personnel maintenance filter sand structure, and ensured the filtration effect.

The invention discloses a catalytic slurry oil filtering and extracting device, and belongs to the technical field of catalytic slurry oil processing, the catalytic slurry oil filtering and extracting device comprises a tank body, the inner side and the outer side of the tank body are jointly provided with a cleaning component, the cleaning component comprises a servo motor fixedly connected to the upper side of a top cover, and the output end of the servo motor penetrates through the top cover and is fixedly connected with a lead screw; the outer side of the screw rod is in threaded connection with a screw rod nut, the outer side of the screw rod nut is sleeved with a movable disc, and the outer side of the movable disc is fixedly connected with a first scraping ring. The impurities attached to the surface of the ceramic filter element and the inner side wall of the filter cavity can be cleaned through the first scraping ring and the second scraping ring in the vertical moving process of the movable disc, so that automatic cleaning of the inner side wall of the filter cavity and the surface of the ceramic filter element is realized, impurity blockage is avoided, smooth proceeding of the filtering process is ensured, and the service life of equipment is further prolonged.

The invention relates to the technical field of petrochemical engineering, and particularly discloses a device for automatically cleaning a slurry reactor coke block filter and a control method thereof.The device comprises a filter A and a filter B which are redundant backups for each other, the filter A is communicated with a slurry inlet pipe through a first liquid inlet pipeline, and the filter A is communicated with a slurry outlet pipe through a first liquid outlet pipeline; the first liquid inlet pipeline is provided with a first cleaning assembly connected with the filter A in parallel, the filter B is communicated with the slurry inlet pipe through a second liquid inlet pipeline, the filter B is communicated with the slurry outlet pipe through a second liquid outlet pipeline, and the second liquid inlet pipeline is provided with a second cleaning assembly connected with the filter B in parallel. The state of the filter is monitored through pressure and temperature, automatic cleaning is carried out in combination with a control system, the filter is prevented from being blocked, the shutdown frequency is reduced, the energy efficiency is improved, the service life of equipment is prolonged, and the risks of leakage and scalding caused by disassembly of a high-temperature and high-pressure flange by maintenance personnel are reduced; and the risk of sealing surface damage caused by flange dismounting at high-temperature parts is reduced.

Provided are a method for manufacturing a blended hydrocarbon composition including operation S1) applying voltage to a first blended solution in which waste plastic pyrolysis oil, washing water, and a demulsifier are blended to dehydrate the first blended solution; operation S2) hydrotreating a second blended solution in which the first blended solution dehydrated in operation S1) and a sulfur source are blended to produce refined pyrolysis oil from which impurities have been removed; and operation S3) blending the refined pyrolysis oil from which impurities have been removed in operation S2) with a petroleum-based hydrocarbon to manufacture a blended hydrocarbon composition, and a manufacturing system of the blended hydrocarbon composition.

This utility model belongs to the technical field of filtration equipment and discloses a crude oil impurity filtration device. This crude oil impurity filtration device includes a receiving cylinder, a sleeve, a filtration mechanism, and a drain pipe. The receiving cylinder has a receiving cavity, including an oil inlet and an oil outlet. The sleeve is fixed inside the receiving cavity to divide it into a first chamber and a second chamber. The oil inlet communicates with the first chamber, and the oil outlet communicates with the second chamber. The filtration mechanism includes a filter cartridge assembly and a rotating assembly. The filter cartridge assembly is located inside the second chamber and is fixedly connected to the sleeve. The filter cartridge assembly has multiple circumferential filter holes and an opening at its top that communicates with the first chamber. The rotating assembly is rotatably disposed inside the filter cartridge assembly and includes several spirally distributed helical blades. One end of the drain pipe is connected to the bottom end of the filter cartridge assembly, and the other end extends outside the receiving cylinder. This crude oil impurity filtration device has low maintenance costs and high filtration efficiency.

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.