441 results about "Refinery" patented technology

Assemblies, apparatuses, and methods to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly and a material receiver to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source positioned to cause a vacuum flow between the source of the material, the material receiver, and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber positioned to receive at least a portion of the vacuum flow from, and attenuate sound generated by, the vacuum source. The material receiver may be positioned an elevated location relative to a source of the material and be capable of staging and metering the conveyance of material when moving material at the top of a structure, such as a refinery tower.

Assemblies, apparatuses, and methods to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly and a material receiver to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source positioned to cause a vacuum flow between the source of the material, the material receiver, and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber positioned to receive at least a portion of the vacuum flow from, and attenuate sound generated by, the vacuum source. The material receiver may be positioned an elevated location relative to a source of the material and be capable of staging and metering the conveyance of material when moving material at the top of a structure, such as a refinery tower.

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.

The invention discloses a method for improving the intelligent classification precision of distillate oil, and the method comprises the steps: employing a method based on a threshold value during spectrum cleaning, and adding S-G to smooth and sharpen spectral features during data preprocessing; during model supervised training, the high-dimensional feature center of distillate oil types is increased, and the identification capability of the model on inter-class differences is enhanced. The method can effectively improve the fraction oil spectrum classification precision, improve the model generalization ability, and provide a more accurate and efficient intelligent classification scheme for refinery enterprises.

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 relates to an oil refinery production and purchase collaborative optimization method based on multi-agent reinforcement learning, and the method comprises the following steps: S1, constructing a production agent, a purchase agent and a production plan model, setting an action space, a state space and a reward function of a production agent and a purchasing agent and an environment updated based on a production plan model after the agents output actions; s2, setting action interaction, state interaction and reward interaction between the production agent and the purchasing agent; and S3, training a production agent and a purchasing agent by adopting an asynchronous MAPPO method based on the interaction set in the S2, obtaining actual oil refinery production data, and inputting the actual oil refinery production data into the trained production agent and purchasing agent to obtain an actual production and purchasing plan. Compared with the prior art, the method has the advantages of improving the production efficiency, reducing the operation cost, keeping the stock balance of crude oil and the like.

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.

The invention discloses a planned shutdown scheduling scheme optimization method for a refinery production device, and the method comprises the steps: collecting production device information and material inventory information according to the actual production process of a refinery plant, and constructing a basic scheduling model in a conventional operation state of the refinery plant based on the collected production device information and material inventory information. Solving the basic scheduling model according to the processing device information and the material inventory information to obtain a load reference value, a material trend reference value and a material inventory reference value of each production device; and then, on the basis of the solved load reference value, material trend reference value and material inventory reference value of each production device, a production device planned shutdown scheduling optimization model is constructed in combination with the refinery planned shutdown arrangement. And finally, solving the planned shutdown scheduling optimization model of the production device, and generating a planned shutdown scheduling scheme, thereby completing optimization of the scheduling scheme of the production device in the planned shutdown state.

A robot for servicing metal equipment in a hydrocarbon refinery includes a robot. The robot includes a body and a plurality of magnetic wheels operatively attached to the body. The plurality of magnetic wheels are operable to attached the robot to a metal surface of the metal equipment. The robot also includes a plurality of propellers coupled to the body of the robot.

The invention relates to a method for synthesizing a high-value product by using refinery furnace gas, which comprises the following steps: purifying refinery crude furnace gas, feeding the purified refinery crude furnace gas into a chemical looping three-stage normal-pressure reactor, respectively obtaining near-pure carbon dioxide, nitrogen and hydrogen products in each stage of flow, and adjusting a gas framework by using the near-pure hydrogen product obtained by reforming coke oven gas as a supplementary hydrogen source, after reaching the standard of the mixed raw material, pressurizing and feeding into a synthesizer, and carrying out gas-liquid separation to obtain a methanol or ammonia product. The method solves the problem that carbon dioxide and nitrogen cannot be utilized when the traditional refinery furnace gas replaces coal-based carbon monoxide to synthesize high-value products through chemical carbonylation; part of coke oven process tail end product coke oven gas is consumed, and the defect that a cheap hydrogen source needs to be supplemented due to unmatched raw material structures in the technological process is overcome; and the tail gas and low-grade heat recycling process in each stage of production process is also optimized, and near-zero emission in the life cycle and gradient utilization of chemical energy are realized.

To provide an information processing system, an information processing method, and a program that facilitate creation of authentication data to be submitted to a third-party organization.SOLUTION: In an information processing system in which a management server 200 is communicatively connected to a user terminal 100 via a communication network 300, the management server 200 comprises: a storage unit for storing information indicating a refinery and information indicating a manufacturer among business entities corresponding to at least either an upstream or a downstream of a supply chain; an information generation unit for generating information for receiving third-party authentication regarding palm oil handled by the refinery and palm oil handled by the manufacturer; and an output unit for outputting the generated information.SELECTED DRAWING: Figure 1

The invention provides a dirty oil sludge treatment method and skid-mounted dirty oil sludge treatment equipment, the method comprises treatment of dirty oil, aged oil, oily sludge and the like, and the main steps are as follows: short-time demulsification is performed through special equipment, and then primary and secondary centrifugal separation is performed to separate water, solid residues and other impurities in the dirty oil sludge, so that the dirty oil sludge is treated. And reduction and recycling of the oil sludge are realized. According to the skid-mounted dirty oil sludge treatment equipment, dirty oil sludge is pumped to a filter to remove large-particle-size impurities, then the dirty oil sludge enters a preheater to be heated, and the heated dirty oil enters a core treatment unit to be subjected to high-energy physical nucleation demulsification; feeding the demulsified sump oil into a horizontal screw centrifuge for solid-liquid separation, and bagging the separated solid residues or feeding the separated solid residues into a sludge drying pry; feeding a separated liquid phase into a three-phase disc centrifuge, carrying out oil-water separation, conveying separated oil out for refining, and conveying separated water out to a sewage treatment plant. And finally, physical and chemical inspection of an oil-phase, water-phase and solid-phase product is inspected, and operation parameters and the technological process are adjusted.

The invention relates to a method and a system for producing low-carbon olefin and light aromatic hydrocarbon through catalytic cracking. The method comprises the following steps: (1) carrying out contact reaction on raw oil and a catalytic cracking catalyst in a constant linear velocity fluidized bed reactor to obtain an oil agent mixture; (2) separating the oil agent mixture to obtain reaction oil gas and a spent catalyst; and (3) separating the reaction oil gas to obtain a low-carbon olefin component, a gasoline component and an oil slurry component. In a constant-linear-speed fluidized bed reactor, light petroleum hydrocarbons such as diesel oil are contacted with a catalytic cracking catalyst with a high silica-alumina ratio, and self-heat balance is maintained through regeneration flue gas circulation to produce low-carbon olefins, light aromatic hydrocarbons and the like. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the conversion rate of the diesel oil is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the processing benefit of crude oil is also improved.

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.

The invention relates to a method for producing high-octane gasoline through hydrocarbon catalytic cracking and a reaction system thereof, and the method comprises the following steps: in a constant linear velocity fluidized bed reactor, diesel oil and other light petroleum hydrocarbons are contacted with a high silica-alumina ratio catalytic cracking catalyst, and self-heat balance is maintained through regeneration flue gas circulation to produce liquefied gas and high-octane gasoline. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the conversion rate of the diesel oil is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the processing benefit of crude oil is also improved.

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.

Provided herein are methods and systems for decontaminating and converting a mixed plastic waste feed to a hydro-gen-rich stream suitable for hydrocarbon refinery processing. Methods include the depolymerization of mixed plastic waste, removal of inorganic and metal contaminants, and feeding to one cracking unit or several cracking units in series. The products of the hydrocarbon refinery processing are high value chemicals such as C2-C4 olefins and benzene, toluene, xylenes, and ethyl benzene.

The invention relates to a method and a system for producing chemical materials including ethylene based on a constant linear velocity fluidized bed reactor, and the method comprises the following steps: (1) carrying out contact reaction on raw oil and a shape-selective molecular sieve catalyst in the constant linear velocity fluidized bed reactor to obtain an oil agent mixture; (2) separating the oil agent mixture to obtain reaction oil gas and a spent catalyst; and (3) separating the reaction oil gas in an oil-gas separation system to obtain chemical materials including ethylene, C4 olefin and the like. In a constant-linear-speed fluidized bed reactor, light petroleum hydrocarbons such as diesel oil are contacted with a shape-selective molecular sieve catalyst, and self-heat balance is maintained through regeneration flue gas circulation to produce ethylene, propylene and the like. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the yield of ethylene and propylene is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the defects of chemical materials are made up.

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.

The invention provides an adsorption process for recovering ethylene from refinery dry gas through combination of MOF and zeolite, raw material gas is refinery dry gas, a main body contains hydrogen, carbon dioxide, C1-C3 low-carbon hydrocarbon gas and the like, the content of C2H4 is about 10%, a pre-decarburization process and an associated bed process are introduced, the adsorption capacity of an adsorbent is protected, and the content of ethylene is reduced. The non-compliant purity ethylene gas in the pressure swing adsorption process is re-enriched and recovered through an associated bed; in the initial stage of adsorption separation, after CO2 is removed through a customized or commercialized adsorbent, C2H4 enrichment and purification are directly carried out, and by introducing an associated bed, ethylene in gas passing through the adsorption process and ethylene gas in the preliminary desorption process of the adsorption bed are captured again, so that the ethylene recovery rate in the process is improved.

A continuous process for transporting one or more waste plastic feedstocks to a refinery processing unit, includes receiving, in a blending unit, one or more waste plastic feedstocks, one or more waste plastic-immiscible bio feedstocks and a recycled inert carrier fluid received from a refinery processing unit, generating, in the blending unit, a homogeneous solution comprising the one or more waste plastic feedstocks, the one or more waste plastic-immiscible bio feedstocks and the recycled inert carrier fluid, and processing the homogeneous solution in the presence of a catalyst under catalytic cracking conditions in the refinery processing unit.

The invention relates to a multi-cycle collaborative production scheduling method of an oil refining production and utility system under an uncertain condition. The method comprises the following steps: S1, obtaining operation data and price data of outsourcing power coal and electricity; s2, predicting the boundary of the uncertainty set according to the price data, and constructing a dynamic uncertainty set; s3, establishing a multi-cycle collaborative production scheduling model of a refinery plant production system and a public system under the dynamic uncertainty set; s4, introducing the model by adopting a distribution robust optimization method based on a dynamic uncertainty set; and S5, solving the multi-cycle collaborative production scheduling model of the oil refining production and utility system under the uncertain condition by adopting a robust dual reconstruction mode, and outputting a production plan. Compared with the prior art, the method has the advantages that the robustness and the conservative property of the production plan output by the model are improved, and the like.

The invention belongs to the field of intelligent control scheduling, and provides a refinery crude oil intelligent scheduling method and system, and the method comprises the steps: constructing a refinery crude oil scheduling simulation environment; markov processing is carried out on a refinery crude oil scheduling problem, and a corresponding relation between the Markov processing and the refinery crude oil scheduling simulation environment data is determined; determining the reward of the refinery scheduling problem according to the corresponding relation; constructing a strategy network and a value network of deep reinforcement learning; training a deep reinforcement learning model according to the refinery crude oil dispatching simulation environment data, the corresponding relation and the reward; and according to the trained deep reinforcement learning model, a refinery crude oil intelligent scheduling decision is made. According to the intelligent scheduling method and system for the refinery crude oil, the refinery crude oil scheduling task is converted into Markov decision for modeling, and the SAC algorithm network is adopted for deep reinforcement learning training, so that the solving efficiency of the refinery crude oil scheduling decision is greatly improved.

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 relates to a method for reducing benzene content in gasoline and a method for producing low-benzene gasoline. The method comprises the following steps: performing high-precision distillation cutting on benzene-rich gasoline to obtain gasoline light fraction, middle fraction and heavy fraction; the benzene-rich gasoline middle fraction enters a moving bed or fluidized bed or fixed bed reactor to be in graded contact with a low-carbon olefin-rich material flow for catalytic alkylation with a mesoporous molecular sieve catalyst, and benzene is efficiently converted into alkylbenzene, so that the benzene-rich gasoline is converted into high-octane-number low-benzene gasoline and liquefied gas. The method provided by the invention reduces the benzene content and olefin content in gasoline, improves the octane number of gasoline and increases the yield of liquefied gas, not only solves the problem that refinery gasoline has high benzene content and is difficult to meet the national VI standard of motor gasoline, but also improves the quality of gasoline and increases the yield of liquefied gas.

A continuous process for transporting a waste plastic feedstock to a refinery processing unit, includes forming a solution containing (i) about 1 to about 40 wt. %, based on the total weight of the solution, of one or more waste plastic feedstocks and (ii) a recycled inert carrier fluid received from a refinery processing unit, and processing the solution comprising the one or more waste plastic feedstocks and the recycled inert carrier fluid in the presence of a catalyst under catalytic cracking conditions.

The invention provides a refinery enterprise water pipeline risk evaluation method based on a Bayesian network, and belongs to the technical field of pipeline risk evaluation. According to the technical scheme, the refinery enterprise water pipeline risk evaluation method based on the Bayesian network is characterized by comprising the specific steps that previous pipeline failure cases are collected, and a historical pipeline failure database is constructed; identifying failure factors through historical data in the historical failure database, and establishing an accident tree based on refinery enterprise water pipeline failure; determining the prior failure probability of the failure factors, and constructing a Bayesian network structure; calculating the fuzzy probability of the root node, and determining a correction factor; and calculating the posterior failure probability of the refinery enterprise water pipeline. The refinery enterprise water pipeline risk evaluation method based on the Bayesian network has the beneficial effects that the subjectivity of water pipeline risk factor identification is reduced, and meanwhile, the accuracy and effectiveness of a risk prediction evaluation result are improved.

A data collection and management system designed for real-time monitoring of welding systems in refinery and petrochemical environments is disclosed. The system includes a data collection module integrated with sensors to automatically capture data from welding equipment (i.e., welder) using multiple protocols such as IoT and OPC. A database management module stores the data in a structured SQL database with indexing and search capabilities. A barcode generation and scanning module allows for quick data retrieval and updates by generating unique barcodes for welded components and documents. An AI module tracks equipment usage, efficiency, and downtime, predicting future maintenance needs and generating audit trails. A reporting module provides real-time visualization through interactive dashboards and generates automated reports for compliance and performance reviews. In one embodiment, a method enables efficient project management by comparing real-time equipment usage with predefined requirements and generating notifications for deviations.

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.