301results about "Hydrocarbon distillation" patented technology

A geothermally powered petrochemical refining system includes a geothermal system with a wellbore extending from a surface into an underground magma reservoir. A geothermally powered fractional distillation system receives crude oil and produces distillates which are separated by molecular weight. The distillates may be provided to a geothermally powered cracking system that is heated by a heat transfer fluid heated by the geothermal system to crack heavy hydrocarbons into lighter ones. The distillates may be provided to a geothermally powered reforming system that is heated by a heat transfer fluid heated by the geothermal system to reform hydrocarbons into different structures.

Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). The r-olefin may then be further separated into product streams in a separation zone downstream of the cracker furnace. The presence of recycle content hydrocarbons may facilitate more efficient operation of one or more distillation columns in the separation zone, including the propylene fractionator.

The invention belongs to the technical field of preparation of biological aviation kerosene, and particularly relates to a composite catalyst, a preparation method thereof and a preparation method of the biological aviation kerosene. The isomerization catalyst and the cracking catalyst are combined, the active site of the composite catalyst is optimized, the yield of the biological aviation kerosene and the proportion of isomerization products are increased, the catalyst cost is low, and the technological process is flexible and controllable.

The invention relates to the technical field of fraction optimization, and discloses a catalytic isomerization-based fraction optimization regulation and control device and method.The catalytic isomerization-based fraction optimization regulation and control device comprises a rectifying tower, the outer wall of the rectifying tower is in through connection with an air inlet, the outer wall of the rectifying tower is in through connection with a liquid inlet, the outer wall of the rectifying tower is in through connection with a reflux inlet, and the top of the rectifying tower is in through connection with an air outlet; when a gas phase passes through the gas outlet, the gas phase jacks the floating valve shell to move upwards, makes contact with the inner wall of the top of the floating valve shell, is blocked by the limiting plate and flows out of the gas outlet groove, and a plurality of gas holes are formed in a catalyst, so that the contact time of the gas phase and the catalyst is prolonged; the problems that when a conventional float valve rectifying tower is used, the contact time of a gas phase in a catalyst layer is short, the deep isomerization reaction time of light naphtha is usually long, only low-carbon hydrocarbon isomerization or simple etherification reaction can be treated, and deeper catalytic isomerization cannot be carried out are effectively solved.

The invention relates to the field of comprehensive utilization of biomass energy, and particularly discloses a process for preparing biological coal based on atmospheric distillation of biochar and biological oil, which comprises the following steps: performing atmospheric distillation on unpickled biochar or pickled biochar and biological oil to finally obtain light fraction and biological coal; biochar which is not subjected to acid pickling or biochar subjected to acid pickling serves as an in-situ catalyst, rich pores and oxygen-containing functional groups of the biochar can synergistically catalyze bio-oil to be subjected to condensation polymerization such as esterification and etherification, and finally the prepared bio-coal is good in combustion performance and high in productivity; the process is simple and controllable, and large-scale industrial production is expected to be carried out.

The apparatus may include a memory storing instructions and a processor configured to execute the instructions to determine an initial mass of the sample, distill the sample to at least a thermal destruction temperature, record vapor temperature values, liquid temperature values, and vapor pressure values ​​associated with the sample at a set of time points during the distillation, and determine a residual mass of the sample. The processor may be further configured to generate a pressure curve based on the vapor pressure values, calculate a summary integral surface of the generated pressure curve, and generate a distillation curve relating the vapor temperature values ​​and liquid temperature values ​​to a mass percentage of the sample evaporated based on the calculated summary integral surface, the initial mass of the sample, and the residual mass of the sample.

The present invention relates to a method and a system for producing aviation fuel. This method comprises the steps of: preparing FT synthetic oil as a feed; introducing the feed into a first distillation column for separating the feed into a plurality of fractions including an aviation fuel boiling point range fraction and an aviation fuel boiling point range exceeding fraction; introducing the aviation fuel boiling point range exceeding fraction into an HCK reactor to produce an HCK reaction product; recycling at least a portion of the HCK reaction product into the first distillation column; introducing the aviation fuel boiling point range fraction into an HDI reactor to produce an HDI reaction product; and recovering aviation fuel from the HDI reaction product.

The invention discloses a fluorine-containing aromatic polyamide film as well as a preparation method and application thereof, and belongs to the technical field of separation film materials. The invention aims to solve the problems of low flux and poor selectivity of the existing membrane material in non-polar solvent separation. The fluorine-containing aromatic polyamide film comprises a porous supporting layer and a fluorine-containing polyamide selection layer formed by interfacial polymerization, the invention discloses application of a fluorine-containing aromatic polyamide film in hydrocarbon separation. The membrane has excellent separation performance (toluene flux gt, 0.1 L.m <-2 >. H <-1 >. Bar <-1 > and TIPB rejection rate gt, 50%) on a toluene / TIPB binary system, can effectively separate complex multi-element organic compound mixtures, shows differential separation performance on different types of hydrocarbon compounds, realizes accurate screening based on molecular size and affinity, and can be used for separation of real crude oil. The method is simple in preparation process, mild in condition and easy for large-scale production.

A refining apparatus for producing aromatic hydrocarbon solvents, comprising: a tank body (1); an inlet pipe (2), penetrating and being fixedly connected to a top of the tank body (1); a sealing cover (3), threadedly connected to the top of the inlet pipe (2); a first servo motor (4), fixedly connected to the top of the tank body (1); a fixed rod (5), fixedly connected to an output end of the first servo motor (4); two stirring paddles (6), fixedly connected to an outer circumference of the fixed rod (5); a driving gear (7), fixedly connected to the top of the outer circumference of the fixed rod (5); and a driven gear (8), rotatably connected to the top of an inner wall of the tank body (1), the driving gear (7) and the driven gear (8) being meshingly connected. The first servo motor (4) drives the two stirring paddles (6) to rotate, stirring and mixing raw materials to ensure uniform mixing of aromatic hydrocarbon solvents during a rectification process.

To provide a fuel supply system for driving a gas turbine cogeneration system using off-gas generated in a process in which bio liquid fuel is generated from biomass as fuel, and a fuel supply method for the gas turbine cogeneration system.SOLUTION: A fuel supply system includes: a fuel gas supply line for supplying fuel gas to a combustor of a gas turbine; a first off-gas supply device for supplying first off-gas generated in a fuel refining plant to the combustor; a second off-gas supply device for supplying second off-gas that is generated in a bio liquid fuel generation plant and has a heating value per unit mass smaller than that of the fuel gas to the combustor; a gas mixing device for mixing the fuel gas supplied by the fuel gas supply line, the first off-gas supplied by the first off-gas supply device and the second off-gas supplied by the second off-gas supply device; and a mixed gas fuel supply line for supplying the mixed gas fuel generated in the gas mixing device to the combustor.SELECTED DRAWING: Figure 4

The invention relates to the technical field of rectification, and discloses a high-purity isoparaffin efficient rectification upgrading device for aerospace kerosene, which comprises a tank body, the surface of the tank body is fixedly connected with a motor, the output end of the motor is fixedly provided with a rotating rod, the right end of the rotating rod is fixedly connected with a first bevel gear, and the right end of the first bevel gear is fixedly connected with a second bevel gear; a rotating part is rotatably connected to the top end of the inner wall of the tank body, a connecting rod is fixedly connected to the bottom end of the rotating part, a second bevel gear is fixedly connected to the surface of the connecting rod, the second bevel gear is in meshed connection with the first bevel gear, and a rotating cylinder is slidably connected to the surface of the connecting rod. The rotating rod and the first bevel gear are driven by the motor to rotate, so that the second bevel gear and the connecting rod are driven to rotate, and the rotating cylinder and the fixed disc on the surface of the connecting rod are synchronously driven to rotate when the connecting rod rotates, so that the disturbance and mixing effects of gas and liquid phases between tower plates are enhanced, and the gas-liquid mass transfer efficiency is improved.

The utility model relates to the technical field of petrochemical engineering, and particularly discloses a cracking tail oil heat recovery system of a slurry bed residual oil hydrogenation device, which comprises a fractionating tower, a fractionating tower bottom pump, an aviation kerosene tower bottom heat exchanger, a debutanizer bottom heat exchanger, an isopentane tower bottom heat exchanger and a tail oil cold feed preheater, the fractionating tower bottom pump, the aviation kerosene tower bottom heat exchanger, the debutanizer bottom heat exchanger, the isopentane tower bottom heat exchanger and the tail oil cold feed preheater are sequentially arranged on the fractionating tower, and a tail oil discharge pipeline is arranged on the tail oil cold feed preheater. The tail oil temperature of the cracking device is reasonably utilized, the heat exchange process is optimized, efficient recovery of tail oil heat is achieved, the potential safety hazard of leakage of a heat exchange system of the isopentane tower is eliminated, temporary shutdown overhaul of the device caused by leakage of a heat exchanger is avoided, meanwhile, effective and stable control over the tail oil temperature is achieved, and the service life of the device is prolonged. The operation cost of tail oil air cooling is saved, and safe and stable operation of a heat exchange system of the device is effectively guaranteed.

The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.

The present invention provides a method of preparing a pyrolysis oil from waste plastics, the method comprising the steps of: (S1) supplying a waste plastic raw material to a first reactor to perform primary pyrolysis, and upwardly discharging a gaseous stream generated by the pyrolysis; (S2) supplying the overhead gaseous stream of the first reactor to at least one distillation column and separating the overhead gaseous stream by boiling point to obtain a stream containing a C5-12 light oil (LO), a stream containing a C13-22 middle oil (MO), and a stream containing a C23 or higher heavy oil (HO); and (S3) supplying a portion of the middle oil (MO)-containing stream separated in the distillation column to a second reactor to perform secondary pyrolysis, and supplying a gaseous stream generated by the secondary pyrolysis to the distillation column, wherein the primary pyrolysis and the secondary pyrolysis are each performed under high pressure conditions of 2-40 bar.

The present invention relates to a process for producing olefins and aromatics from a hydrocarbon feedstock comprising crude oil, the process comprising the following steps: a) an atmospheric distillation step; b) a fluid catalytic cracking step; c) a fixed bed hydrocracking step; d) a steam cracking step; e) a catalytic reforming step; f) an aromatics transformation and / or separation step; g) a one-step oligomerization and catalytic cracking step. Figure 1 to be published

The application discloses a hydroprocessing method and a hydroprocessing system. The hydroprocessing method comprises a first-stage hydroprocessing step, a middle-stage separation step and a second-stage hydroprocessing step under the condition of 4-15 MPa. The middle-stage separation step separates the effluent obtained in the first-stage hydroprocessing step into heavy components and light components. The second-stage hydroprocessing step processes the heavy components. The reaction raw material of the hydroprocessing method of the application comprises any one, two, three or four of crude benzene full fraction, heavy benzene, coal-based light hydrocarbon and coal tar. The hydroprocessing system is used for implementing the hydroprocessing method of the application. The application realizes two-stage hydroprocessing through the middle-stage separation processing, and effectively separates the heavy components and the light components, so that each reaction stage processes the corresponding best adaptation effect according to the different properties of the raw materials, and the best selection of each component in the raw material into the target product is ensured.

The utility model relates to the technical field of slurry bed vacuum towers, and discloses an anti-blocking structure for removing particles in ascending gas of a slurry bed vacuum tower, which comprises a tower body, six fillers are arranged in the tower body, the six fillers are BED1, BED2, BED3, BED4, BED5 and BED6 in sequence from top to bottom, the six fillers are longitudinally arranged at intervals in sequence, and the six fillers are arranged in the tower body. The top of each of the six fillers is provided with a filler pressing ring, the bottom of each of the six fillers is provided with a filler support and a truss girder, and the BED1, the BED2, the BED3, the BED4 and the BED5 are structured fillers. A traditional four-line oil collecting tank is changed into the design that the lifting cylinders incline towards the extraction opening and are not equal in height, so that under the condition that the extraction opening is blocked, liquid is accumulated to the height of the low lifting cylinder and overflows from the low lifting cylinder, the high lifting cylinder is reserved to enable gas phase to pass, and the gas-liquid shunting function of the oil collecting tank can still be reserved; and the conditions of entrainment and blockage of the gas raising cylinder caused by gas and liquid walking in the same place are avoided.

The present invention relates to a separator and a method for separating crude oil. The separator comprises: a shell and a second support member having a gap with the wall of the separation chamber, a first support member sealed and connected to the shell being spaced apart above the second support member along the height direction of the separation chamber; the second support member is an impermeable support member, and an overflow plate is provided at one end of the gap, the overflow plate, the second support member and the wall of the separation chamber together form a second phase separation zone; each first support member comprises a permeable support portion and an impermeable support portion, an overflow plate is provided between the permeable support portion and the impermeable support portion, so that the overflow plate and the wall of the separation chamber together form a first phase separation zone, and a decompression medium is provided in the first phase separation zone and the second phase separation zone. The separator of the present invention can separate different components in crude oil using carbon dioxide at a relatively low temperature.

A process for treating a crude oil feedstock includes: introducing a crude oil stream into a reactive distillation unit to remove Conrason carbon residues and metals from the crude oil stream and produce a distillate stream having an average boiling point distribution that is less than the average boiling point distribution of the crude oil stream; and feeding the distillate stream in gaseous form, in a continuous manner and without further treatment, to a catalytic cracking reactor operating at a temperature of 300 DEG C to 800 DEG C, the catalytic cracking reactor having a cracking catalyst arranged therein, the cracking catalyst cracking the distillate stream, to form a petrochemical product stream comprising light olefins and BTX.

Methods of separating products from the catalytic fast pyrolysis of biomass are described. In a preferred method, a portion of the products from a pyrolysis reactor are recovered and separated using a quench system and solvent contacting system that employs materials produced in the pyrolysis process.

A method for reducing the solid content in catalytic cracking slurry comprises: (1) mixing an auxiliary agent with raw oil and heating it to obtain a raw oil liquid, wherein the auxiliary agent is petroleum wax with a carbon number between C20 and C43 and a normal paraffin mass content of 35 to 60%; (2) mixing a diluent with the raw oil liquid in step (1), cooling to obtain a liquid-solid mixture, and performing solid-liquid separation to obtain a desolidified oil liquid and a wax paste, wherein the diluent is a C3-C6 fatty ketone and / or a C6-C8 aromatic hydrocarbon; (3) removing the diluent from the desolidified oil liquid to obtain a catalytic cracking slurry desolidified with solids, and removing the diluent from the wax paste to obtain the auxiliary agent containing solids. The method provided by the present invention has simple steps, and the solid removal rate of the catalytic cracking slurry is greater than 88%.

The application discloses a solvent separation and recovery process of a vinyl lubricating oil base oil, and comprises the following steps: step S1, obtaining organic solvent vapor and crude oil by removing the reaction liquid from a dissolving unit; step S2, obtaining refined solvent by refining the organic solvent vapor in a solvent rectification unit; step S3, obtaining tail gas condensate and tail gas non-condensable gas by condensing tail gas containing solvent vapor in a tail gas condensation recovery unit; and step S4, passing the tail gas non-condensable gas through a tail gas adsorption unit. The application mainly solves the problems of poor separation effect of reaction products, low product quality and inability to reach an industrial scale in the prior art.

The utility model relates to methanol removal equipment for industrial mixed oil production, which comprises a fixed frame, an inlet and outlet pipe, a servo motor and an outlet pipe, the fixed frame is annular, the upper surface and the lower surface of the fixed frame are both provided with limiting grooves, a material box is arranged in the fixed frame, the material box is obliquely arranged, and the outlet pipe is arranged in the material box. The inlet and outlet pipe is arranged at the bottom of the material box, and the outlet pipe is arranged at the top of the material box. According to the device disclosed by the utility model, the methanol component in the industrial mixed oil is efficiently removed by combining an innovative swing stirring mechanism with a direct heating technology. Compared with a traditional method, the method has the advantages that the raw materials can be more sufficiently mixed, the uniformity and the speed of methanol evaporation are improved, and the methanol removal efficiency is remarkably improved. Meanwhile, the heating module embedded in the stirring blade can directly heat the raw materials, the evaporation process of the methanol is accelerated, complete removal of the methanol is further ensured, and the quality of the industrial mixed oil 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.

A method of processing a hydrocarbon feed may comprise fractionating the hydrocarbon feed into a light stream and a heavy stream, where the light stream includes hydrocarbons boiling at less than 370 ⁰C, and the heavy stream includes hydrocarbons boiling at greater than greater than 370 ⁰C, hydrotreating the heavy stream to form a hydrotreated heavy stream, feeding the light stream to a first Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a light product stream which includes light olefins, and feeding the hydrotreated heavy stream to a second Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a heavy product stream which includes light olefins, where the first FCC reaction zone operates under more severe operating conditions than the second FCC reaction zone.

A method for processing a hydrocarbon-containing mixture includes the steps of: I) separating the hydrocarbon-containing mixture into a light fraction and a heavy fraction; II) reacting the light fraction from step I) in an aromatization unit and separating the resulting reaction product into a C5− component and a C6+ component; III) reacting the heavy fraction from step I) and optionally the C6+ component from step II) in an aromatics conversion unit and separating the resulting reaction product into a C5− component, a C6-C7 component, a C8 component, and a C9+ component; and IV) optionally, steam cracking or catalytic cracking one or both of the C5− component from step II) and the C5− component from step III). The method can convert low-value hydrocarbon mixtures into C8 aromatic hydrocarbons and cracking raw materials, and improve the product value. A system for practicing this method is also provided.

The invention relates to the technical field of chemical energy conservation, in particular to an alkylate rectification system and method.The system comprises a deisobutanizer and an n-butanizer, a tower top outlet of the deisobutanizer is connected with an isobutane extraction pipeline, a tower bottom outlet of the deisobutanizer is connected with the upper middle section of the n-butanizer, and a tower bottom outlet of the n-butanizer is connected with the lower middle section of the n-butanizer. A tower bottom outlet of the n-butane removal tower is connected with an alkylate oil extraction pipeline; a tower top outlet of the n-butane removal tower is connected with an inlet of the compressor, a heat source inlet of the first multi-stage heat supplier at the middle and lower sections of the isobutane removal tower is connected with an outlet of the compressor, a heat source outlet of the first multi-stage heat supplier is connected with an inlet of the pressure release valve, and an outlet of the pressure release valve is respectively connected with a tower top inlet of the n-butane removal tower and an n-butane extraction pipeline. The steam at the top of the n-butane removal tower is recompressed to be used for heat supply of the isobutane removal tower, low-grade energy can be converted into high-grade energy, heat distribution in the isobutane removal tower is optimized, consumption of the high-grade energy is reduced, and energy saving is achieved.

The utility model relates to the technical field of waste mineral oil treatment equipment, and discloses waste mineral oil distillation pretreatment impurity removal equipment which comprises a filtering bin, a supporting frame is fixed in the filtering bin, and a filtering assembly used for removing impurities in waste mineral oil is arranged in the supporting frame. The filter assembly comprises a plurality of filter cartridges arranged in the supporting frame in a surrounding mode, a main pipe is fixed to the middle of the supporting frame, a flow dividing pipe is connected between the main pipe and the filter cartridges, a flow dividing pipe is connected between every two adjacent filter cartridges, and a fixing frame is fixed to the position, below the supporting frame, in the filter bin. According to the waste mineral oil filter disclosed by the utility model, the main pipe is connected with the filter cartridges and the two adjacent filter cartridges are connected through the shunt pipes, so that the plurality of filter cartridges form a communicating vessel, waste mineral oil uniformly flows into the plurality of filter cartridges, and the plurality of filter cartridges can filter the waste mineral oil at the same time; the filtering area of the waste mineral oil is increased, so that the filtering speed is increased.

The present invention relates to a crude oil distillation tower and a crude oil enhanced distillation process based on heat extraction from the middle section of the distillation tower. An in-tower gas phase condenser is provided in the distillation tower, and the rising gas phase in the distillation tower section and the feed crude oil undergo indirect contact heat exchange in the in-tower gas phase condenser. Compared with the prior art, the present invention overcomes the problem of huge liquid phase load in the tower in the conventional pump circulation area by partially condensing the gas phase, thereby reducing the full-tower pressure drop of the distillation tower. In addition, by utilizing the enhanced heat exchange method proposed in the present invention, the equipment size of the distillation tower will be reduced, or a larger processing capacity can be obtained within the existing equipment size, thereby improving the operational flexibility of the equipment. The enhanced heat exchange method proposed in the present invention circumvents the two heat exchange processes of the traditional pump circulation, completes the heat transfer through a single heat exchange process, and achieves energy saving and consumption reduction in the process. The present invention proposes an enhanced distillation tower design method, which can be used not only in the design of new towers, but also in the technical transformation of old towers.

The application provides an impregnant pitch and a method for producing the impregnant pitch by using ethylene tar, and the method is as follows: 1. The ethylene tar is subjected to rectification, light components B1 with a distillation range of less than 180-210 DEG C are separated out, and heavy components A1 of the tar are collected; 2. The heavy components A1 of the tar obtained in step 1 are subjected to rectification again, light components B2 with a distillation range of 210-360 DEG C and heavy components A2 are separated out; 3. The light components B2 obtained in step 2 are subjected to catalytic polymerization and then subjected to negative pressure separation, the light components B3 obtained by the negative pressure separation are extracted, and heavy components A3 are collected; 4. The heavy components A3 obtained in step 3 are subjected to centrifugation, and the upper components C in the first 50% are collected according to the mass fraction; and 5. The upper components C obtained in step 4 and the heavy components A2 are subjected to condensation reaction to obtain the impregnant pitch. The impregnant pitch provided by the application simultaneously satisfies quinoline insoluble QI < 0.3%, and beta resin > 15%.