63 results about "Oil refinery" patented technology

When using spectroscopic diode lidar to detect a gas of interest such as methane (CH4), detecting high concentration pathlength (CPL) values of the gas of interest may not actually indicate a plume or leak. In areas such as a refinery, where ambient gas levels may be routinely high, absorption from ambient gas measured over a long pathlength may produce the same CPL value as a much closer gas leak, leading to a false positive. By collecting and using lidar distance information in tandem with the CPL values determined from the lidar system spectroscopic measurements, the statistical properties of the dataset can be evaluated, and ambient concentrations of the gas estimated. A lidar dataset with revised values of CPL that adjusts for these measurements of ambient concentration may be created to provide better reliability for analysis and in for triggering alarms for potentially dangerous gas concentrations and leaks.

The present disclosure relates to ionic copolymers and terpolymers derived from monomers such as 1-alkyl-3-vinylimidazolium halides, 1-vinylimidazole, acrylamide, n-vinylpyrrolidone, and poly(ethylene glycol) methyl ether methacrylate, and their use as corrosion inhibitors in process streams in industrial systems, more specifically in oil refinery streams. The corrosion inhibitors function at concentrations below 100 ppm, temperatures up to 60° C., and in the presence of congenital waters or synthetic brines.

The invention relates to the field of oxidative desulfurization of oil and sulfur-containing liquid hydrocarbon fuels (including diesel fuel) and can be used to reduce harmful emissions and exhausts (in the form of sulphur oxide and carbon monoxide - SO2 and CO) of oil refineries, as well as various industrial enterprises (including energy), facilities and engines using hydrocarbon fuels. Method of oxidative desulfurization of oil and liquid hydrocarbon fuel and reducing harmful emissions of sulfur oxides and carbon provides a process of oxidation in tanks or pipelines by ozone (O3) or ozone-containing gases, in which sulfur oxides (SO2 and SO), without releasing them into the atmosphere, mix in a closed vessel or pipeline with carbon monoxide (CO) and by means of chemical reactions of sulfur monoxide decomposition (2SO↑ → SO2↑+S↓) and sulfur recovery (SO2↑ + 2CO↑ → S↓ + 2CO2↑) elemental sulfur (S) is extracted from oil or liquid hydrocarbon fuel and carbon monoxide (CO) is converted into its dioxide (CO2). The oxidation, also decomposition and recovery reactions are carried out one-step or sequentially, in the presence of oxidation-recovery group catalysts corresponding to these reactions, such as tert-Butyl hydroperoxide (C₄H₁₀O₂). Ozonized atmospheric air is used as ozone-containing gas.

The invention discloses an oil refinery production optimization method and device, a medium and electronic equipment, and the method comprises the steps: carrying out the refinery region division and refinery type division in an interactive interface according to the equipment installation position of a refinery device; on the basis of the divided refinery plant areas, determining product prices corresponding to the refinery plant areas by using a pre-trained profit optimization model; the optimization model is established by taking profit data maximization of the oil refinery as a target; determining equipment configuration information of the refinery plant device and raw material distribution proportion information of each piece of equipment; selecting and inputting at least one type of raw materials from the database samples; and based on all selected and input target production parameter information, optimizing the profit of a single refinery plant device and the comprehensive profit of the oil refinery by using an optimization model. According to the method, the complex process of the refinery is simplified, the optimization model covering the properties and types of various raw materials is established, a reverse raw material screening function is provided for the refinery, and the raw material with the highest cost performance is selected.

The invention discloses a real-time optimization and closed-loop control method for carbon emission efficiency in an oil refining process, and the method comprises the steps: collecting control loop parameters and production and carbon emission data of an oil refinery, and carrying out the data preprocessing; performing feature construction and variable selection on the basis of a preprocessing result, and extracting important input variables with representativeness on carbon emission and yield; constructing a deep learning model architecture; training the deep learning model to obtain a trained deep learning model; performing system deployment according to the trained deep learning model; online verification is carried out on an oil refinery device, and the actual effect of the model on carbon emission control and yield optimization in a real production scene is evaluated; and based on a verification result, combining actual feedback data to carry out iterative optimization and continuous learning on the system, and verifying the effectiveness of the action generated by the optimized action model.

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.

The invention relates to a method and a device for evaluating the stability of a molecular level oil refining device. Comprising the steps that feeding data and result data of a target molecular level oil refining device in multiple time units in an evaluation period are obtained, and the result data comprise yield data and physical property data of products; respectively inputting the feeding data of each time unit into a calculation model corresponding to each time unit for calculation to obtain a physical property data calculation value corresponding to the corresponding time unit; wherein the calculation model is obtained by performing regression optimization according to the yield data in the result data corresponding to the corresponding time unit; and calculating the stability rate of the target molecular level oil refining device according to the physical property data actual value and the physical property data calculated value of each time unit. According to the embodiment of the invention, a worker is guided to optimize the target molecular level oil refining device according to the stability rate, the process stability of the target molecular level oil refining device is improved, and the method has great significance for the technical development of molecular oil refining.

The present invention relates to a decontaminating process for petrochemical compositions, said process comprising subjecting a hydrocarbon composition (A) comprising an inorganic and / or polar contaminant to the following steps: (i) a water washing treatment and (ii) an adsorption treatment, preferably wherein said inorganic and / or polar contaminant is a chlorine-containing contaminant. This process allows for the purification of hydrocarbon compositions, such as pyrolysis oil products obtained from the processing of waste plastic compositions, such that such hydrocarbon compositions can be suitable for processing in petrochemical and / or refinery operations.

Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and / or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns and less than 100 ppm chloride. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and / or polypropylene and heating the mixture in the range of from 550° F. to 700° F. The blend mixture is then hot filtered and then optionally treated with a chloride removal guard bed. The resulting blend can then be cooled and stored or sent directly to a refinery conversion unit.

Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and / or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns, and less than 10 ppm chloride. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and / or polypropylene and heating the mixture above the melting point of the plastic, but less than 500° F. The blend mixture is then hot filtered with the resulting filtered blend mixture being heated to at least 500° F. The heated mixture can then be treated with a chloride removal guard bed. The resulting blend can then be cooled and stored or sent directly to a refinery conversion unit.

This utility model discloses a high-safety steam utilization device for oil refineries, belonging to the technical field of steam utilization devices. It includes a steam recovery cylinder and a cooling pipe. An oil inlet pipe and an oil outlet pipe are respectively connected to both sides of the side wall of the steam recovery cylinder, and both are connected to the cooling pipe. An exhaust pipe is connected to the side wall of the steam recovery cylinder, and an installation pipe is connected to the end of the exhaust pipe. A sealing pipe is fixedly installed inside the lower part of the installation pipe. The top surface of the sealing pipe is arc-shaped, and the outer wall of the sealing pipe is sealed to the inner wall of the installation pipe. A horizontal plate is fixedly installed horizontally inside the upper part of the installation pipe. A push spring is fixedly installed at the bottom of the horizontal plate, and a sealing valve is fixedly installed at the bottom of the push spring. The bottom of the sealing valve matches the top surface of the sealing pipe. Compared with the prior art, this device can automatically release excessive pressure inside the steam recovery cylinder, while further improving the utilization effect of excess steam.

The present invention relates to ferrous alloys with high strength, cost-effective corrosion resistance and cracking resistance for refinery service environments, such as amine service under sweet or sour environments. More specifically, the present invention pertains to a type of ferrous manganese alloyed steels for high strength and cracking resistance and methods of making and using the same for applications including, but not limited to, amine units used in oil and gas production, petroleum refining, and chemical production.

The utility model provides a high-temperature and high-pressure ball valve, which relates to the technical field of high-temperature and high-pressure ball valves and comprises a valve body, a valve rod is rotatably connected onto the valve body, a handle is fixedly connected onto the valve rod, a ball body is fixedly connected onto the valve rod, and a fireproof structure is arranged on the valve body. The fireproof structure is mainly composed of two protective shells, the two protective shells are both arranged on the valve body, inorganic fiber layers are fixedly connected to the interiors of the protective shells, aerogel layers are fixedly connected to the inorganic fiber layers, reflecting layers are fixedly connected to the aerogel layers, supporting layers are fixedly connected to the reflecting layers, and the supporting layers are fixedly connected to the fireproof structure. The utility model solves the problems that the connection point of the ball valve is usually one of the weakest links in the system and is easy to become a fire spreading way, and especially in high-risk environments such as petrochemical engineering, power stations, oil refineries and the like, if additional protection is not carried out on the ball valve, the sealing is easy to damage, and the medium is easy to leak.

The present invention relates to a tyre comprising a rubber composition based on at least: - an elastomer matrix comprising a styrene-butadiene copolymer and natural rubber; - a reinforcing filler comprising silica; - a vulcanisation system; and - a plasticising system comprising a hydrocarbon resin, wherein this resin is based on a cyclic monomer selected from the group consisting of a distillation cut derived from an oil refinery stream, C4, C5 and C6 cyclic olefins and mixtures thereof, and wherein the hydrocarbon resin has an aromatic proton content (H Ar, expressed in mol%), a glass-transition temperature (Tg, expressed in °C) and a number average molecular weight (Mn, expressed in g / mol) such that (1) H Ar > 6 mol%, (2) Tg ≥ 95 - 2.2 * (H Ar), (3) Tg ≥ -53 + (0.265 * Mn) and (4) 250 g / mol ≤ Mn ≤ 600 g / mol.

This invention discloses a wet oxidation catalyst for oil refinery alkali residue and its preparation method, relating to the field of catalysts. The catalyst preparation method involves dissolving activated carbon in a solution to form a mixture, stirring and reacting it under an oxygen atmosphere of 0.5 MPa–5 MPa and a temperature of 200°C–260°C, followed by filtration and drying to obtain the catalyst. During the wet oxidation reaction, the catalyst degrades organic matter and sulfur-containing compounds in the oil refinery alkali residue into CO2, H2O, and SO4 under high temperature and high pressure conditions. 2‑ This achieves the effect of reducing COD in wastewater. This application uses modified activated carbon as a wet oxidation catalyst for oil refinery alkali residue, which eliminates the problem of active component leaching. Furthermore, the active center of the catalyst is the functional group generated during oxidation, making it less prone to deactivation. The catalyst can be produced through a simple process, which is beneficial for expanding production and application.

The process herein can be used to thermally crack various hydrocarbon feeds and can completely eliminate refineries while making the crude oil to chemical process very flexible in crude oil. In embodiments herein, crude oil is gradually separated into at least a light fraction and a heavy fraction. These fractions are directed to one of three upgrading operations, according to the mass of the light fraction and the heavy fraction, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a residue hydrocracking unit that may utilize an ebullated bed reactor. The product from the upgrading operation may be used as a feed to a steam cracker.

1. Name of the product in this design: Process Pump. 2. Application of this design: This design is used in petrochemical industries, chemical industries, oil refineries, water supply plants, power plants, etc., for conveying pure liquids or liquids containing trace amounts of fine particles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to the technical field of work clothes, in particular to cooling work clothes for workers in an oil refinery. Comprising a work clothes body, a cooling assembly, a fixing assembly, a heat dissipation assembly and a cooling pipe, the fixing assembly is installed on the work clothes body, the cooling pipe is arranged in the work clothes body, the two ends of the cooling pipe are installed on the heat dissipation assembly, the cooling assembly is installed on the fixing assembly, and the heat dissipation assembly is installed on the cooling assembly. Through the arrangement of the cooling assembly, cooling liquid in the water tank is cooled through the cold end of the semiconductor chilling plate, the cooled cooling liquid is conveyed into the cooling pipe through the water pump, the cooling liquid flows in the cooling pipe, and in the process that the cooling pipe makes contact with the body of a worker, heat exchange is generated between the cooling liquid and the worker; and therefore, the worker can be cooled, and the cooling requirement of the human body can be met when the worker is in a high-temperature environment and high-temperature weather of an oil refinery.

The present invention relates to a hydrocarbon compound mixture that is transparent in a layer of 40 mm thick at 20°C and has a cloud point of 15°C or less according to a relevant standard test method for measuring cloud point, obtained by a method of converting plastic waste into a liquid hydrocarbon compound mixture. The present invention further relates to a method of converting plastic waste into such a liquid hydrocarbon compound mixture and to the use of said hydrocarbon compound mixture as a feedstock for a crude oil refining unit or a steam cracker in an oil refinery.

A stable blend is provided of petroleum bottom distillation column (ATB) feedstock and 1 to 20% by weight of plastic based on the weight of the blend, wherein the plastic includes polyethylene and / or polypropylene, and the plastic in the blend includes finely dispersed microcrystalline particles having an average particle size of 10 to less than 100 microns. A method is also provided for preparing a stable blend of plastic and petroleum, comprising mixing the petroleum feedstock with the plastic containing polyethylene and / or polypropylene, and heating the mixture to a temperature above the melting point of the plastic but below 500°F. The liquid blend of the plastic molten material and the petroleum feedstock is then cooled to a temperature below the melting point of the plastic while mixing.

The utility model relates to the technical field of vertical pumps, in particular to a balancing device of a vertical pump which is suitable for conveying clean media or media containing small-size impurities in the industries and fields of oil refineries, petrochemical engineering, low-temperature application, marine industry and the like under the working conditions of high inlet pressure and low lift. A balancing device consisting of a balancing box body, a balancing sleeve and a balancing drum is assembled at the lower end of a suction section; the balance box body is arranged at the bottom of the suction section through a bolt; the balance sleeve is arranged on the inner wall of the balance box body through a bolt; and the balancing drum is arranged in the balancing sleeve and is sleeved on the shaft. The bottom end of the balance pipe communicates with the interior of the balance box body, and the top end communicates with the interior of the supporting pipe. According to the technical scheme, the problems that a balancing device of a vertical pump is installed on the outlet side of the pump, the pressure of a front cavity of a balancing drum is large, the pressure of a rear cavity of the balancing drum is small, the balancing device can generate upward balancing force, upward axial force can be generated in the working process, a pump shaft is in a compressed state all the time, and operation is unstable are solved.

Described are methods for monitoring marine water-body sustainability at a site of discharge of water into the water-body. Typically, the discharge of water occurs at a discharge of streams, rivers, water purification plants, water desalination plants, power plants, and discharge of oil refineries. The methods provide for daily, quarterly, as well as annual monitoring of water-body quality to ensure sustainability. The methods typically include establishing monitoring sites at a plurality of designated distances from the site of discharge, at a plurality of designated depths at the monitoring sites, and obtaining samples from the water-body at the monitoring sites. Interrogating the obtained samples for physical and chemical monitoring, biological monitoring, biochemical and organic monitoring, microbial monitoring, and phylogenetic analysis, as well as monitoring the sites for marine observational surveys, helps establish the marine water-body sustainability at a site of discharge.

1. Name of the product in this design: Explosion-proof camera light. 2. Application of this design: for safety monitoring and lighting in railways, power plants, chemical plants, ships, aviation, coal mines, oil refineries, etc. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

A method for inhibiting corrosion in a refinery crude distillation unit includes introducing a corrosion inhibition composition to the refinery crude distillation unit. The corrosion inhibition efficiency of the corrosion inhibition composition may be at least 80%. The corrosion inhibition composition may include a carrier fluid and a corrosion inhibitor consisting essentially of a compound represented by Formula (I):where R1, R2, R3, and R4 are each, independently, a hydrogen or an alkoxy group, and m and n are each, independently integers ranging from 2 to 10, wherein R5 and R6 are each, independently, a saturated C6-C10 hydrocarbon group or an unsaturated C6-C10 hydrocarbon group.

Fouling is formation of deposits on the heat exchanger surfaces that adversely affects operation of heat exchanger. Fouling can be approximated through a set of estimated heat exchanger parameters, which may not be accurate, leading to uncertainty in operation / maintenance decisions and hence the losses. A system and a method for identification and forecasting fouling of a plurality of heat exchangers in a refinery has been provided. The system comprises a digital replica of the heat exchanger network. The digital replica is configured to receive real-time sensor data from a plurality of data sources and provides real-time soft sensing of key parameters. The system is also configured to diagnose the reasons behind a specific condition of fouling. Further, an advisory is provided, that alerts and recommends corrective actions. The system provides estimate for the remaining useful life (RUL) of the heat exchangers and suggests the cleaning schedule.

The invention belongs to the technical field of energy environmental protection, and discloses a microwave plasma alcoholysis product zero-emission separation and purification system and method. The method comprises the following steps: firstly, converting carbon monoxide in an alcoholysis product into carbon dioxide through a conversion reaction process; carbon dioxide and entrained alkali liquor are removed through alkali washing and water washing processes; then purifying and recovering hydrogen in the product through a two-stage membrane separation process; converting hydrocarbons such as methane into substances such as hydrogen, carbon monoxide and carbon dioxide through a conversion reaction process; finally, impurities in the hydrogen are removed through a two-stage adsorption process, high-purity hydrogen is produced, and the hydrogen not only can reach the hydrogenation process standard of an oil refinery, but also can reach the fuel cell standard. According to the method, the hydrogen recovery rate is high, zero emission is achieved in the separation process, and remarkable economic, environmental and social benefits are achieved.

A process for producing hydrocarbons having biogenic carbon content and a sweetened gas stream is provided. In the process a refinery feed having biogenic carbon content, non- biogenic carbon content and sulphur content is refined in a conversion unit to obtain a conversion effluent, wherefrom at least a gaseous stream and optionally an unstabilised naphtha stream comprising H2S and at least one or more of carbon oxide(s) and / or C1-C3 hydrocarbons, and a degassed hydrocarbon stream are separated. The separated gaseous stream is subjected to a sweetening treatment, and optionally at least one or more distillate(s) and a separation bottom are further separated from the degassed hydrocarbon stream. The process further comprises collecting as a sample an aliquot of the gaseous stream or an aliquot of the unstabilised naphtha stream, subjecting the sample to combustion to obtain an exhaust gas sample containing CO2, sulphur oxide(s) (SOx) and H2O, subjecting the exhaust gas sample, preferably as dehydrated, to a SOx removal treatment, and subjecting at least a portion of the SOx depleted gas sample to a biogenic carbon content determination. The present process provides a convenient and safe way to conduct the mass balancing, and biogenic carbon content determination in an output stream, for individual conversion units of a refinery, as required e.g. for an ISCC PLUS certification.

The invention discloses an ammonium chloride salt crystallization simulation and prediction method based on molecular dynamics. The method comprises the following steps: determining the number of particles and constructing a structure model according to the ammonium chloride concentration of an ammonium chloride solution system in the oil refinery air cooler heat exchange equipment to be simulated and predicted, and constructing an ammonium chloride solution structure model in a simulation box; and geometric optimization is performed on the structure model after the potential function is determined, so that energy convergence is minimum and the structure model is placed on the iron surface. Performing molecular dynamics crystallization simulation on the geometrically optimized model in different isothermal and isobaric environments to obtain an equilibrium model, and acquiring crystallization data of the equilibrium model in a stable time period to simulate and predict a crystallization process; and simulating the balance model under different equal-volume and equal-energy conditions so as to predict crystallization influence characteristics for crystallization prevention and control. The method can simulate and predict the crystallization behavior of ammonium chloride under different conditions, so as to determine the phase change law and corrosion mechanism of ammonium chloride on the pipeline wall surface of the hydrogenation air cooling system, thereby forming a scientific prevention and control means and prediction method.

The invention provides an ionic liquid corrosion inhibitor for a low-temperature part of a tower top of an oil refinery and a preparation method and application of the ionic liquid corrosion inhibitor. The preparation method of the ionic liquid corrosion inhibitor comprises the following steps: adding dichloromethane, triethylamine and benzyl alcohol into a reaction container, stirring and dispersing, adding a sulfonyl chloride compound, and stirring to obtain a reaction solution; stirring and reacting at room temperature, carrying out vacuum distillation to remove dichloromethane, and washing and drying a residual product to obtain solid powder; and adding the solid powder into acetonitrile, stirring and dissolving, then adding an imidazole compound, stirring and reacting at 60-80 DEG C, then carrying out vacuum distillation to remove acetonitrile, dispersing residues by using ethyl acetate, carrying out water extraction, carrying out water-phase distillation and drying to obtain the ionic liquid corrosion inhibitor for the low-temperature part at the tower top of the oil refinery. The corrosion inhibitor disclosed by the invention has excellent water solubility and stability, and the use safety of a product can be remarkably improved; meanwhile, the additive amount is small, the corrosion inhibition effect is remarkable, and the industrial application prospect is wide.

The invention discloses a preparation method and application of a high-flux alkaline nitrogen removal agent for chemical sump oil of an oil refinery. The removal agent is obtained by compounding coal hydrogen residues and a waste FCC (Fluid Catalytic Cracking) catalyst in a mass ratio of (1-9): (1-10). The preparation method of the removal agent comprises the following steps: mixing the coal-to-hydrogen residues and the waste FCC catalyst, and carrying out hydrothermal treatment to obtain the removal agent; and heteropoly acid (salt) is used for modification and optimization. According to the invention, waste silicon-aluminum complex residues are recycled and reused, and a heteropoly acid (salt) modification technology is coupled, so that the adsorption capacity and the adsorption rate can be effectively improved; the method has the advantages of low cost, high adsorption flux, good adsorption effect and the like.