131results about "Refining by centrifugal force" 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.

This invention concerns an installation and method for treating a first stream (S1) of a colloidal suspension of water and ultra-fine particles and a second stream (S2) of heavy oil, both of which streams are derived from treating a flow of heavy crude oil or bitumen, to convert them into separate streams of clean water, clean oil, decanted solids and usable gases. The first stream (S1) is treated in a series of electro-kinetic reactors (20) operating by electrolysis / electro flocculation and water tank clarifiers (30) connected in parallel. The second stream (S2) is treated in ultrasound cyclone chambers (40). Released gas is collected from the tops of the electro-kinetic reactors (20) and the ultrasound cyclone chambers (40). Decanted solids are collected from the bottoms of the electro-kinetic reactors (20) and the ultrasound cyclone chambers (40). Clean water is collected from the water tank clarifiers (30). Clean oil is collected from the ultrasound cyclone chambers (40).

A method of recycling waste lubricant. The method includes providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocracking the pretreated waste lubricant-derived oil fraction. The method has economic advantages in that waste lubricant can be recycled into fuel oil and high-grade lube base oil with a relatively high yield compared to a lube base oil manufacturing process utilizing only unconverted oil as a feedstock.

The present invention relates to a process for treating a feedstock comprising plastics and / or tyres and / or solid recycled fuel pyrolysis oils containing halogenated compounds, said process comprising: a) a hydrotreating step to obtain a partially hydrotreated effluent having a reduced halogenated compound content, b) a separation step to obtain a partially hydrotreated effluent having a reduced halogenated compound content, and c) a separation step to obtain a partially hydrotreated effluent having a reduced halogenated compound content. The present invention relates to a process for the steam cracking of a petroleum feedstock fed with a partially hydrotreated effluent from step a) and an aqueous solution to obtain a gaseous effluent, an aqueous effluent and a partially hydrotreated hydrocarbon effluent, c) a steam cracking step of a petroleum feedstock wherein at least a portion of the partially hydrotreated hydrocarbon effluent is introduced as a common feedstock, the mixture of the petroleum feedstock and the partially hydrotreated hydrocarbon effluent from step b) has a halogenated compound content of less than or equal to 3 ppm by weight without first undergoing a further hydrotreating step carried out at a higher temperature and / or pressure.

A system for upgrading pyrolysis oil may include a pyrolysis upgrading unit having a mixed metal oxide catalyst and a separation unit operable to separate the spent mixed metal oxide catalyst from the reaction effluent. The method for upgrading pyrolysis oil may include contacting the pyrolysis oil with hydrogen under reaction conditions in the presence of the mixed metal oxide catalyst to produce a reaction effluent. The pyrolysis oil may include polycyclic aromatic compounds. The mixed metal oxide catalyst may include a plurality of catalyst particles, and each of the plurality of catalyst particles has a plurality of metal oxides. Contacting the pyrolysis oil with hydrogen under reaction conditions in the presence of the mixed metal oxide catalyst may convert at least a portion of the polycyclic aromatic compounds in the pyrolysis oil into light aromatic compounds.

The utility model relates to the technical field of waste tire pyrolysis oil treatment, and discloses waste tire pyrolysis oil carbon black rapid separation equipment which comprises a separation cylinder main body, according to the rapid separation equipment for the waste tire pyrolysis oil and the carbon black, through the arrangement of a transmission assembly and a push-pull assembly, when the rapid separation equipment is used, a pyrolysis oil and carbon black mixture enters a filtering sleeve through a feeding pipe, a driving motor is started to drive a transmission gear in a supporting sleeve box to rotate, and then meshed gear rings on a fixing sleeve are driven; the fixed sleeve and the filter sleeve rotate at a high speed inside, pyrolysis oil is separated out through centrifugal force and reaches the oil outlet pipe through the oil discharge net disc to be discharged, carbon black is left in the filter sleeve, then the hydraulic rod is started, the movable bolt pulls the circular baffle to open the bottom, and the carbon black is discharged from the carbon black discharge pipe; therefore, the effect of rapidly separating the pyrolysis oil and the carbon black is achieved, meanwhile, the pyrolysis oil and the carbon black are conveniently discharged, and the automation degree of the rapid separation equipment for the pyrolysis oil and the carbon black of the waste tires is improved.

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.

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 provides a separation device for gas reservoir exploitation, and belongs to the technical field of gas reservoir exploitation. Comprising a tank body, the top of the tank body is fixedly connected with a feeding pipe and an exhaust pipe, the bottom of the tank body is fixedly connected with a water drainage pipe, an oil drainage pipe and a cooperative driving mechanism, and the cooperative driving mechanism is used for processing emulsion in fluid and connected with the tank body and the feeding pipe. According to the device, the cooperative driving mechanism is arranged, so that fluid can be automatically layered after entering the tank body, the time for mutual sedimentation and layering of a gas phase, an oil phase and a water phase is shortened, the fluid separation efficiency of the device is improved, and before the fluid enters the space between the first partition plate and the second partition plate, emulsion is treated and demulsified, and the separation efficiency is improved. And the fluid is more efficient in the sedimentation process, and the quality of the treated fluid is higher.

A post-treatment process for crude biodiesel containing residual monoacylglycerol (MAG) and including contacting said crude biodiesel with a concentrated alkaline solution, double counter-current washing each followed by a phase separation and drying. The process is economical in chemicals and washing water.

The present invention relates to an apparatus and process for separating components of a multiphase hydrocarbon stream (27), said apparatus comprising: - an outer container (1) having an upper end (2) with an upper outlet (3), a lower end (4) with a lower outlet (5), and an outer container body (7) disposed between the upper end (2) and the lower end (4) and having an outer container interior space (8) in fluid communication with the upper outlet (3) and the lower outlet (5), the outer container having a longitudinal axis (6) extending between the upper end (2) and the lower end (4); The outer container body (7) is - a first section (9) with a tangential inlet (10) arranged to introduce a multiphase hydrocarbon stream (27) tangentially into the outer vessel volume (8) to create a vortex flow; and - a second section (11) disposed closer to the lower end (4) than the first section (9), and the outer container space (8) has a smaller cross-sectional perimeter in the second section (11) than in the first section (9); An outer container (1), - an inner container (15) arranged within the outer container body (7), the inner container (15) comprising: - an inner container body (16) having an inner container space (17); and - an inner lower inlet (18) facing towards the lower end (4) of the outer vessel (1) and in fluid communication with the inner vessel space (17) and with the outer vessel space (8); An inner container (15) comprising: - a traverse conduit (21) in fluid communication with the inner vessel space (17) and traversing the outer vessel body (7); Equipped with.

A method and an oil purification system for purification of contaminated oil, wherein said contaminated oil comprises at least a light phase comprising oil and a heavy phase comprising water, said method comprising the steps of: - adding droplets of heavy phase into the contaminated oil; and - separating the light phase and the heavy phase of the contaminated oil in a separation device.

The invention relates to a process for producing olefins by steam cracking, in particular from feedstocks originating from plastic waste, in particular from a composition comprising a plastic liquefaction oil, said composition comprising paraffins, olefins, aromatics and heteroatoms.The process comprises: (a) a step of separating a portion of the paraffins and olefins contained in said composition comprising at least one step of crystallization (i) of said composition by lowering the temperature from 10°C to 60°C from an initial temperature at which said composition is entirely liquid and obtaining a mixture comprising a solid product enriched in paraffins and depleted in olefins, aromatics and heteroatoms and an effluent depleted in paraffins and enriched in olefins, aromatics and heteroatoms, followed by at least one step of separation (ii) of said solid product and said effluent, (b) a step of hydrotreatment of the solid product of step (a) and obtaining a hydrotreated effluent having a reduced content of olefins, and optionally a reduced content of heteroatoms and aromatics, (c) a step of steam cracking the hydrotreated effluent and obtaining an effluent containing olefins.Abstract figure: without.

The utility model discloses a waste mineral oil recycling and filtering device which comprises a recycling box, a fixing frame is arranged at the bottom of the recycling box, a sealing cover is arranged at the top of the recycling box, an installation groove is formed in the inner wall of the recycling box, and a limiting rod is arranged on the surface of the installation groove. The outer surface of the top of the limiting rod is in threaded connection with a limiting ring, and the outer surface of the middle of the limiting rod is sleeved with a filtering frame. According to the recycling and filtering device for the waste mineral oil, when the waste mineral oil is recycled and filtered, the filter screen I can filter out large impurities in the waste mineral oil, the primarily filtered waste mineral oil can fall into the filter box, and then the filter box is driven by the driving motor to rotate; fine impurities and water in the waste mineral oil can be filtered out through the filter screen II in the filter box under the action of centrifugal force, so that the recovery quality of the waste mineral oil is improved, and the use effect of the equipment is improved while the filter effect of the equipment is improved.

The present invention relates to upgrading heavy petroleum oils, their residues, and / or polymeric materials. More specifically the present invention relates to a method for upgrading heavy petroleum oils, their residues, and / or polymeric materials by hydrothermal treatment with an aqueous solvent.

The invention relates to petrochemistry, in particular to a sintering aid composition for manufacturing carbonaceous products for the metallurgical industry. The present invention relates to a sintering aid composition for the manufacture of carbonaceous articles, consisting of concentrated residues from slurry phase hydrocracking of a heavy oil feedstock, having an aromatic hydrocarbon content in the range of 23 wt.% to 27 wt.%, in which the sintering aid composition is characterized in that the total weight loss is 50 wt.% to 51 wt.% in the temperature range of 30 DEG C to 850 DEG C, and in which the total weight loss is 50 wt.% to 51 wt.% in the temperature range of 30 DEG C to 850 DEG C. The weight loss in the temperature range of 290 DEG C to 570 DEG C is about 95 wt.% of the total weight loss. The performance characteristics of the sintering aid are improved to make high strength carbonaceous articles for metallurgical industry.

A system for refining crude oil to minimize emissions of toxic compounds in the atmosphere during refining. The crude oil is treated with viscosity-reductant additives, reducing viscosity by up to 50% and increasing API gravity by more than 2 points. The method of spray-cracking and vacuum-flashing of crude oil, the system separates light and heavy end chains within the reactor. The vapor is condensed into designer fuels using a multi-stage horizontal reverse condensate-condenser or closed-loop distillation tower. Process heater directs flue gases through high-salinity fluids, such as a brine-processing device to capture, sequester, or mineralize the CO2, CO, NOx, and other contaminants from the flue gases. This results in a significant reduction in emissions, a further reduction to near-zero emissions (>95-98%) is achieved by the combination of (1) the closed loop processes, tank blanketing and capturing, sequestering and mineralizing emitted flue gases from the heater combustion-exhaust.

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.

The invention relates to a method for purifying a composition comprising a plastic liquefaction oil, wherein: (a) a plastic liquefaction oil composition is provided, then (b) washed with a first aqueous solution to obtain an organic phase containing the washed composition and a first aqueous effluent, then (c) the organic phase from step (b) is treated in the presence of a basic compound at a temperature of at most 450°C to obtain an organic effluent comprising a treated composition, and (d) the organic effluent from step (c) is washed with a second aqueous solution to obtain a purified composition having a reduced heteroatom content, and a second aqueous effluent. In addition, during step (b), the first aqueous effluent is entirely or partially returned to step (d), and / or during step (d), the second aqueous effluent is entirely or partially returned to step (b).

The present invention relates to a process for producing middle distillates and naphtha from a mixed feedstock comprising a heavy hydrocarbon fraction of fossil origin in which at least 50% by weight of the compounds have an initial boiling point greater than 300 DEG C and a final boiling point less than 700 DEG C, and less than 50% by weight is a plastic and / or tire and / or solid recovered fuel pyrolysis oil fraction having a paraffin and olefin compound content greater than 60% by weight, comprising the following steps: a) a step of hydrotreating the mixed feedstock to obtain a hydrotreated effluent; b) a step of hydrocracking the hydrotreated effluent to obtain a hydrocracked effluent; c) a step of separating the hydrocracking effluent to produce at least one gaseous effluent comprising hydrogen and at least one liquid effluent; d) a fractionation step to produce a naphtha fraction and a middle distillate fraction.

The present invention relates to a process for producing paraffins by hydrotreatment, in particular from a composition comprising a plastic liquefaction oil, said composition comprising paraffins, olefins, aromatics and heteroatoms.The process comprises: (a) a step of separating a portion of the paraffins and olefins contained in said composition comprising at least one step of crystallization (i) of said composition by lowering the temperature from 10°C to 60°C from an initial temperature at which said composition is entirely liquid and obtaining a mixture comprising a solid product enriched in paraffins and depleted in olefins, aromatics and heteroatoms and an effluent depleted in paraffins and enriched in olefins, aromatics and heteroatoms, followed by at least one step of separation (ii) of said solid product and said effluent, (b) a step of hydrotreatment of the solid product of step (a) during which the olefins contained in said solid product are hydrogenated and an effluent containing paraffins and at most 2% m / m of olefins is produced. Abstract figure: without.

A novel process for the conversion of waste plastics via cofeeding waste plastic melt with a refinery feedstock is provided. The process can generate a mixed product which can be further treated or purified to produce value-added products or chemical precursors.

Disclosed is a method for treating a feedstock comprising a pyrolysis oil of plastics and / or tires and / or recovered solid fuels comprising halogenated compounds, the method comprising: a) a hydrotreatment step to obtain a partially hydrotreated effluent having a reduced halogenated compound content, b) a separation step, fed by the hydrotreated effluent from step a) and an aqueous solution to obtain a gaseous effluent, an aqueous effluent and a partially hydrotreated hydrocarbon effluent, c) an oil feedstock steam-cracking step in which at least a portion of the partially hydrotreated hydrocarbon effluent is introduced as a co-feedstock without previously undergoing another hydrotreatment step at a higher temperature and / or a higher pressure, said mixture of the oil feedstock and the partially hydrotreated hydrocarbon effluent from step b) having a halogenated compound content of less than or equal to 3 ppm by weight.

The invention relates to a process for processing a silicon (Si)-containing hydrocarbon stream (1), the process comprising the following steps: - providing the hydrocarbon stream (1); - separating a Si-rich fraction (24) from the hydrocarbon stream (1), wherein the Si-rich fraction (24) has a boiling range with a lower end of at least 120 °C and a Si content of at least 10 ppm; - processing the Si-rich fraction (24) in a fluid catalytic cracking (FCC) unit (20).

The present invention discloses a gas-liquid separation and purification device, belonging to the technical field of separation devices, which includes a crude oil collection tank, a gas collection tank, a purification pipe and an adjustment unit; by setting a spiral purification pipe and allowing the direction of the downward movement of the crude oil mixture from top to bottom, the downward-flowing crude oil can quickly occupy the space of the purification pipe close to the crude oil collection tank, so that the crude oil squeezes the gas upward and enters the gas collection tank through the gas collection pipe, which can well improve the separation rate of gas-oil separation; at the same time, the gas collection pipe is arranged on the inner circumferential wall close to the purification pipe, and such an arrangement can keep the gas purification pipe away from the crude oil, avoiding the crude oil entering the gas collection pipe and affecting the separation rate; the other end of the gas collection pipe is connected to the inner circumferential wall of the purification pipe. When the gas enters the purification pipe from this end and before entering the next gas collection pipe, it can provide a thrust to the flowing crude oil, avoiding the crude oil entering the gas collection pipe and blocking the smooth entry of the gas into the collection tank.

Post-treatment process for crude biodiesel containing residual monoacylglycerol (MAG) and comprising contacting said crude biodiesel with a concentrated alkaline solution, double counter-current washing each followed by a phase separation and drying. The process is economical in chemicals and washing water.

Disclosed is a method for purifying a composition comprising a plastic liquefaction oil, the method comprising: a) providing a composition comprising a plastic liquefaction oil containing at least 20 ppm by weight of heteroatoms, b) bringing said composition in contact with an aqueous medium at a pH greater than 7, the contacting being carried out in a turbulent flow having a Reynolds number greater than 2000 and at a maximum temperature of 250° C to obtain an effluent containing the modified composition, c) subjecting the effluent of step (b) to (c1) washing in the presence of water or a solvent immiscible with the modified composition, (c2) separation, or to the succession of steps (c2) and (c1), and obtaining a purified composition having a reduced heteroatom content, and a phase containing the basic compound containing the basic compound and heteroatoms initially contained in the modified composition.