218 results about "Refinery" patented technology

Systems, assemblies, and methods to enhance extraction of pyrophoric materials from a refinery apparatus may include supplying a pressurized fluid to a plurality of vacuum generators, and generating, via the plurality of vacuum generators using the pressurized fluid, a vacuum flow. A manifold may provide a flow path for the vacuum flow, and pyrophoric material may be extracted from the refinery apparatus via the vacuum flow to a material collector through which the vacuum flow passes, depositing at least a portion of the extracted pyrophoric material in the material collector. One or more of inert gas or a cooling medium may be supplied to the material collector.

A process is provided for upgrading low value lipid feedstocks for refinery processing. The process includes (a) treating a lipid feedstock comprising at least one fatty acid with a metal oxide catalyst on an oxide support under treating conditions to produce a treated stream, wherein the treating conditions include a temperature in a range of from 400° C. to 700° C.; a pressure in a range of from 0 to 10 MPa; and a liquid hourly space velocity in a range of from 0.1 to 10 h−1; and (b) fractionating the treated stream to obtain a gaseous fraction and a liquid fraction comprising a bio-oil; wherein the bio-oil has a lower content of oxygen and impurities as compared to the lipid feedstock.

Systems, assemblies, and methods to enhance extraction of pyrophoric materials from a refinery apparatus may include supplying a pressurized fluid to a plurality of vacuum generators, and generating, via the plurality of vacuum generators using the pressurized fluid, a vacuum flow. A manifold may provide a flow path for the vacuum flow, and pyrophoric material may be extracted from the refinery apparatus via the vacuum flow to a material collector through which the vacuum flow passes, depositing at least a portion of the extracted pyrophoric material in the material collector. One or more of inert gas or a cooling medium may be supplied to the material collector.

The invention belongs to the technical field of desulfurization gas purification, and particularly relates to a desulfurizing agent and a preparation method thereof. The desulfurizing agent is an iron-zinc-calcium composite oxide material with a hierarchical porous structure, and the preparation method of the desulfurizing agent comprises the following steps: performing amination modification on xanthan gum, then mixing the modified xanthan gum with nano cellulose, and then preparing slurry with a metal salt solution containing Fe, Zn and Ca; performing two-way temperature gradient freezing casting and freeze drying to obtain a precursor; and finally, roasting and activating under programmed temperature control. According to the preparation method, nano-scale dispersion of active components is realized by virtue of strong coordination of aminated xanthan gum and metal ions, and a high-strength and through hierarchical pore framework is constructed by virtue of nanocellulose enhancement and freezing casting. The obtained desulfurizer has ultrahigh one-time sulfur capacity, high mechanical strength and excellent structural stability, is complete in form after being used, is convenient for resource recovery, and is suitable for efficient removal of hydrogen sulfide in industrial gases such as refinery gas.

Systems and methods are provided for co-processing plastic waste in a coker as part of an integrated refinery environment that produces kerosene, jet fuel, and / or jet fuel blending components as a product. The co-processing can be performed in a fluidized coker, a delayed coker, or a combination of fluidized cokers and delayed cokers. After coking, hydroprocessing can be performed on one or more portions of the coker effluent that contribute to formation of the kerosene, jet fuel, and / or jet fuel blending component product(s). The hydroprocessing can be used to reduce or minimize the presence of unexpected nitrogen contaminants in the resulting kerosene, jet fuel, and / or jet fuel blending component product(s).

The invention discloses a refinery production scheduling optimization method and device. The method comprises the following steps: constructing a refinery production scheduling optimization model based on a refinery production scheduling expert rule and a pre-established refinery production scheduling mathematical model, wherein the production scheduling expert rule is formulated according to the actual production process of the refinery; inputting the actual production parameters of the refinery plant into the refinery plant production scheduling optimization model and solving to obtain a model solving result; and obtaining a refinery production scheduling business result based on a model solving result. According to the method, the production process of the refinery plant can be optimized and scheduled more reasonably and scientifically under the constraint of the production scheduling expert rule, the executability of the production scheduling of the refinery plant is improved, and the working efficiency of the production scheduling and scheduling of the refinery plant is improved.

The invention belongs to the technical field of petrochemical anticorrosion, and provides a multifunctional water-soluble corrosion inhibitor for an oil refining device and a preparation method of the multifunctional water-soluble corrosion inhibitor, and the corrosion inhibitor is a functionalized grafted copolymer obtained by a ring-opening reaction of a succinimide ring on a polysuccinimide intermediate and a plurality of amino-containing compounds; the amino-containing compound at least comprises gemini imidazoline quaternary ammonium salt with a corrosion inhibition function; a polyaspartic acid chain segment precursor with scale inhibition and dispersion functions; the organic amine compound has targeted chelating and pH buffering functions and contains sulfonic acid groups and carboxyl groups; according to the invention, double-anchored gemini imidazoline quaternary ammonium salt is taken as a corrosion inhibition core, and a polysuccinimide ring-opening grafting process is combined, so that chain segments with corrosion inhibition, scale inhibition, targeted buffering and temperature-sensitive self-repairing functions are covalently integrated into a same polymer main chain, and multi-functional efficient protection of a single agent in an oil refining device water phase system is realized.

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and / or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3 olefin / paraffin mixture is recovered from the hydrocracking unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.

This invention pertains to the field of hydrogen energy, specifically a high-carbon, low-hydrogen pressure swing adsorption (PSA) purification process system and method. The system, along the gas flow direction, sequentially includes a carbon-based conversion unit, a heat exchange-cooling-gas-liquid separation unit, a compressor, at least two switchable decarbonization and desulfurization towers, a fine desulfurization tower, a PSA unit, a desorbed gas buffer tank, a desorbed gas compressor, and a fuel gas tank. This invention increases the hydrogen fraction in the feed gas from 30-50% to 50-70% through carbon-based conversion, then removes total sulfur to ≤0.1ppm through multi-stage desulfurization and decarbonization, finally producing fuel cell-grade hydrogen with a purity of ≥99.97% via PSA. Simultaneously, the desorbed gas is pressurized, buffered, and then divided into two stages for reuse. This invention effectively improves hydrogen recovery rate and desorbed gas utilization rate, solving the problems of high energy consumption and adsorbent poisoning in the purification of high-carbon, low-hydrogen by-product gases. It is applicable to various feed gases such as coke oven gas, refinery gas, and methanol tail gas.

The invention relates to the field of refining and chemical degradation-resistant wastewater treatment, in particular to a ceramic membrane with a surface-pore channel concerted catalysis structure, a preparation method and application. According to the method, aluminum oxide, a high-temperature-resistant catalyst (manganese dioxide / CuO) and calcium carbonate are mixed and prepared into a green body, then the green body is sintered to obtain a ceramic membrane matrix, and a gel-sol method is further adopted to prepare the efficient catalytic separation layer. According to the method, a surface and membrane pore confinement synergistic catalysis structure can be formed through induction in the sintering process of the ceramic membrane, the binding force between components of the ceramic membrane is strengthened, and the mechanical strength of the membrane is remarkably improved; meanwhile, by adopting a gel-sol method, regulating and controlling the thickness of the separation layer and preparing the separation layer, the surface separation layer is degraded and separated, free radicals in a reaction system can be enriched through the space confinement effect of matrix membrane holes, the concentration of active species in the membrane holes is improved, and then the oxidation removal efficiency on pollutants is enhanced.

A method of refining platinum group metal containing material in a platinum group metal refinery, the method comprising: placing the platinum group metal containing material in a furnace having a flue; thermally processing the platinum group metal containing material in the furnace; capturing flue dust passing through the flue of the furnace during thermal processing of the platinum group metal containing material, said flue dust comprising platinum group metal and base metal; treating the captured flue dust in sulphuric acid to leach the base metal into solution producing a sulphuric acid leach liquor comprising the base metal and a solid residue comprising the platinum group metal; separating the solid residue comprising the platinum group metal from the leach liquor comprising the base metal; and recycling the solid residue comprising the platinum group metal for further processing within the platinum group metal refinery to recover the platinum group metal.

Contacting an inner surface of a petrochemical or refinery process vessel (optionally a metal) with a halide or halide-containing compound wherein at least a portion of the halide is coupled to the inner surface due to shrinkage; and releasing at least a portion of the halide coupled to the inner surface via contacting the inner surface with hydrogen.

Disclosed is a process of utilising ferruginous laterite (14) in bauxite mining. The process may include providing a laterite source and a bauxite source (16) from a bauxite mine (12), and separating the laterite source into a first laterite fraction (24) that is enriched with a non-magnetic bauxite-like material and a second laterite fraction (22) that is iron enriched laterite. The second laterite fraction (22) may be directed to an iron refinery (44). A bauxite mine (12), Bayer plant (26), and iron refinery (44) configured to implement the process are also disclosed.

The invention belongs to the technical field of oil sludge treatment, and particularly provides an oil sludge wastewater innocent treatment process which comprises thermal refining, solid-liquid separation, oil-water separation, PAM removal, wastewater treatment and solid-phase innocent treatment. The harmless treatment of the oily sludge wastewater has the advantages of simple process, mild conditions, environmental friendliness and the like, is suitable for oily sludge treatment scenes of oil fields, refineries and the like, and has remarkable industrial application value and environmental protection benefits.

A process for producing a jet fuel fraction (41), said process comprising steps of feeding at least one of a biogas stream (1), a carbon dioxide stream (2), or a methane stream (3), and at least a fraction of a tail gas recycle stream (32), to a reformer section (10) to provide a synthesis gas stream (11); feeding said synthesis gas stream (11, 22) to a synthesis section (30) to provide a stabilized condensate stream (31), a liquid wax stream (38), the tail gas recycle stream (32) and a concentrated oxygenate recycle stream (36); refining at said stabilized condensate stream (31) and liquid wax stream (38) in a refinery section (40) to provide a jet fuel fraction stream (41); and recycling said concentrated oxygenate recycle stream (36) to a biogas plant, and a plant for carrying out the process.

The present application relates to a kind of coastal refinery emergency scheduling method and device, equipment and storage medium, belong to crude oil scheduling technical field.The method includes the inspection of crude oil scheduling information based on the request of coastal refinery emergency scheduling, determine the crude oil scheduling exception information of scheduling event;Based on the crude oil scheduling exception information of scheduling event, adjust crude oil scheduling plan;Based on the adjustment of crude oil scheduling plan, get new crude oil scheduling plan.The present application uses to modify long-distance pipeline transmission event, time translation is carried out to long-distance pipeline transmission event, same tank area borrows oil, commercial storage tank area borrows oil and adjusts oil tanker unloading speed in turn as the specific measures of crude oil scheduling plan adjustment, can quickly obtain the feasibility of new crude oil scheduling plan, and the new crude oil scheduling plan obtained meets no crude oil scheduling exception information.

Carbon capture for industrial applications, such as power plants, municipal solid waste facilities, cement production, iron & steel, petrochemicals, desalination and refineries, is disclosed herein. Embodiments employ a cryogenic system and process to capture carbon dioxide, ensuring efficient and effective capture, while also maximizing solvent recovery. This advancement enables a capability to meet the demands of diverse industries with a solution that reduces energy penalties and enhances overall operational efficiency. The approach is scalable, modular, and compact, while minimizing energy consumption.

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 application provides a method for maximum production of propylene by catalytic cracking of hydrocarbons and a reaction system thereof, which comprises contacting light petroleum hydrocarbons such as diesel oil with a mesoporous molecular sieve catalyst in an isokinetic fluidized bed reactor, and maintaining self-heating balance by recycling regeneration flue gas to maximum production of propylene and the like. The method of the present application can process not only light hydrocarbons such as diesel oil, but also heavy oils such as naphtha, wax oil and residual oil, has high propylene yield, and can achieve self-heating balance, thereby not only solving the problem of excess production capacity of refinery diesel oil, but also making up for the deficiency of chemical materials.

The application discloses a kind of steel plate materials resistant to 700 DEG C, wet hydrogen sulfide environment, component includes by weight percentage: C:0.07-0.13%, Si:0.20-0.50%, Mn:0.30-0.60%, Cr:7.0-9.0%, Mo:1.00-1.20%, W:1.50-2.00%, Nb:0.06-0.10%, V:0.15-0.25%, N:0.040-0.100%.Its preparation method includes: smelting, casting, heating, rolling, heat treatment is normalized heat treatment after martensite is decomposed again, then stabilization treatment is carried out.The steel plate material prepared by the application has high-temperature tensile strength of 410-450 MPa at 700 DEG C, transverse elongation after fracture of 31.0-34.0%, and longitudinal elongation after fracture of 33.0-35.0%.

Electrical power derived from a renewable energy source is used to perform electrolysis of water to produce oxygen and hydrogen. A feed stream includes consumer waste plastics, a waste stream from a hydrocarbon refinery, or both. The feed stream is partially oxidized to produce syngas. At least a portion of the carbon monoxide of the syngas is reacted with water to produce additional carbon dioxide and hydrogen. A hydrocarbon feed stream is hydroprocessed using at least a portion of the hydrogen generated by electrolysis and at least a portion of the hydrogen from the syngas to produce a hydroprocessing product stream including a saturated hydrocarbon. At least a portion of the carbon dioxide of the syngas is hydrogenated using at least a portion of the hydrogen generated by electrolysis to produce a product stream including a hydrocarbon, an oxygenate, or both.

The present invention provides a refinery control method, device, electronic device, and storage medium, wherein the method comprises: obtaining initial operating parameters under current refinery conditions, and determining a product distribution prediction result for the current refinery conditions based on the initial operating parameters and a product distribution prediction model; determining target operating parameters for the current refinery conditions based on preset optimization conditions and the product distribution prediction result; and controlling a catalytic cracking unit and a hydrogenation unit based on the target operating parameters; wherein the product distribution prediction model is determined based on the operating mechanism of the catalytic cracking reaction of the feedstock in the catalytic cracking unit. The method and device provided by the present invention achieve coordinated control of the hydrogenation unit and the catalytic cracking unit, improve the automation level of refinery control, and reduce hydrogen consumption during the refinery process.

The present application belongs to the field of refinery dry gas utilization, and discloses a system and method for preparing propylene by disproportionation of refinery dry gas. The system comprises a raw material pretreatment unit, a disproportionation reaction unit and a product separation unit. The raw material pretreatment unit comprises, in sequence, an alkali washing package, a dry gas compressor, a dry gas absorption tower, a first desorption tower, a second desorption tower and a circulating carbon four cooler. The disproportionation reaction unit comprises a disproportionation reactor inlet-outlet heat exchanger, a disproportionation reactor and a reaction outlet cooler. The product separation unit comprises a deethanizer, a propylene rectification tower, a reaction separation tail gas absorption tower and a remaining carbon four cooler. The system and method can reduce the consumption of carbon four raw material, improve the recovery rate of ethylene in refinery dry gas and reduce consumption.

The present application relates to a kind of organic amine neutralizer for atmospheric and vacuum unit and its application, belong to neutralizer technical field.The neutralizer of the present application is compounded by multiple organic amines, and the main component is ethylene amine and ethanol amine.Directly according to formula, single-component organic amine is added to compound, it can also be prepared by two-step combination of first synthesis and then compounding, the latter can reduce cost, with higher economic benefit.The organic amine neutralizer of the present application is applied to refinery atmospheric and vacuum unit fractionating column top volatile line corrosion prevention, can replace conventional ammonia water.It has the following advantages: suitable for tower top volatile line environment in distillation range;easily soluble in water at dew point temperature, not corrosive in dew point area;with low melting point, good water solubility, no ammonium salt scale, not accumulated, not blocked;stable pH, easy to control;safe and environmentally friendly;good corrosion inhibition effect;excellent performance, high cost performance, etc.

Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and / or polypropylene and preparing a blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3-C4 olefin / paraffin mixture, and optionally naphtha, is recovered from the hydrocracking unit and passed to a steam cracker to make ethylene A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.

The application provides a crude oil pipeline transportation differentiation control method considering the differences between the stoppable pipeline and the non-stoppable pipeline, and comprises the following steps: S1, collecting pipeline transportation end parameters, upstream end parameters and downstream end parameters, and performing pretreatment; S2, defining the constraints and rules of the top layer framework of differentiation control; S3, scene judgment and classification processing: based on the collected real-time parameters, judging whether the pipeline transportation network is currently in a regular scene or a sudden scene; S4, executing corresponding differentiation control strategies for the regular scene or the sudden scene. The application realizes the deep cooperation between pipeline transportation control and oil depots and refineries, completely solves the problems of "pressure holding" and "oil shortage for volume adjustment" caused by the disconnection between supply and demand in the prior art, and improves the supply-demand matching degree M of the whole link to more than 95%.

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.

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and / or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas C3 olefin / paraffin mixture is recovered from the FCC unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene.

The application discloses a dry gas deep desulfurization process. The process comprises the following steps: (1) removing hydrogen sulfide from refinery dry gas through a first-stage amine liquid absorption tower; (2) removing organic sulfur from tail gas of the first-stage amine liquid absorption tower in a low-temperature absorption tower; (3) sequentially exchanging heat between the absorption tail gas and raw dry gas, and between the absorption tail gas and hydrolysis tail gas, and then heating the absorption tail gas, and then inputting the absorption tail gas into a hydrolysis reactor to convert carbonyl sulfur into hydrogen sulfide; and (4) inputting the hydrolysis tail gas into a second-stage amine liquid absorption tower, and countercurrently absorbing the hydrolysis tail gas with lean amine liquid in the tower to remove hydrogen sulfide in the dry gas. The application can purify and remove sulfides in the dry gas, reduce the content of organic sulfur and hydrogen sulfide in the gas, reduce the content of SO2 in flue gas discharged from a heating furnace of each subsequent device, and ensure safe, environmentally-friendly and efficient and stable operation of the heating furnace of the whole plant.