185 results about "Jet fuel" patented technology

The invention discloses a reaction condition optimization control method and system for biological aviation kerosene production, and particularly relates to the field of biological aviation kerosene production. The method comprises the following steps: firstly, acquiring parameters such as temperature, pressure, flow, catalyst activity and raw material components of biological aviation kerosene in real time through a sensor module consisting of a temperature sensor, a pressure sensor, a flow sensor and the like, and then carrying out pretreatment operations such as median filtering and wavelet denoising on acquired data; constructing an LSTM-Transformer hybrid model based on the preprocessed data to predict the second-by-second value of each parameter in the future 10 minutes, correcting the predicted value according to a catalyst activity index formula, further optimizing the prediction model by using a shadow model, comparing the predicted value with a preset interval and a threshold value, judging the state of the predicted value, and determining the second-by-second value of each parameter in the future 10 minutes. And finally, generating a fixed fine-tuning, strengthening or emergency control strategy according to a judgment result. According to the method, the biological aviation kerosene production reaction conditions can be accurately predicted, regulated and controlled, and the production stability, safety and product quality are improved.

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Separating the olefin stream (3) in a fractionation unit (4) into at least a C2-olefin-rich stream (5), a C3-olefin-rich stream (6) and a C4+-olefin-rich stream (7); c) Dimerizing at least a portion of ethylene contained in the C2-olefin-rich stream (5) to C4-olefins in a dimerization unit (20), thereby producing a dimerized product stream (21); d) Processing an oligomerization feed (8) comprising at least a portion of the C4+-olefin-rich stream (7) and at least a portion of the dimerized product stream (21) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); e) Hydrogenating at least a portion of the oligomerized olefin stream (10).

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Processing an oligomerization feed (8) comprising at least a portion of the olefin stream (3) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); c) Hydrogenating at least a portion of the oligomerized olefin stream (10); wherein a fraction of the oligomerized olefin stream (10) is withdrawn as a recycle stream (40a, 40b) and passed to a steamcracking unit (41) to produce a steamcracking product stream (42), wherein at least a portion of the steamcracking product stream (42) is included in the oligomerization feed (8).

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Providing an oligomerization feed (8) comprising at least a portion of the olefin stream (3) and at least a portion of an external C4+-olefin stream (30) comprising C4+-olefins; c) Processing the oligomerization feed (8) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); d) Hydrogenating at least a portion of the oligomerized olefin stream (10).

A process of producing jet fuel is disclosed. The process comprises separating lignin from a lignocellulosic biomass to provide a lignin stream. The lignin stream is pyrolyzed and / or hydrotreated to produce an aromatic rich bio-oil stream. The aromatics in the aromatic rich bio-oil stream are alkylated with an alkylating agent to produce an alkylated aromatic product stream. The alkylating agent can be taken from the lignocellulosic biomass. The process produces a green jet fuel.

A process for the production of sustainable aviation fuel (SAF) with low carbon intensity. The jet fuel is produced from the reaction of hydrogen from the electrolysis of water with captured carbon dioxide. The hydrogen and carbon dioxide are reacted to product a stream comprising carbon monoxide. Hydrogen and carbon monoxide are reacted to produce n-alkanes. Alkanes are hydroisomerized to produce sustainable aviation fuel with low carbon intensity.

A process for oligomerizing olefins to distillate fuels in the presence of a diluent for absorbing the exotherm. Oligomerization may comprise oligomerizing a charge olefin stream in a first-stage oligomerization reactor which is oligomerized in a second-stage oligomerization reactor to provide an oligomerate stream. The oligomers are hydrogenated and stripped to provide a stripped distillate stream. The diluent may be taken from the stripped distillate stream.

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).

This application discloses a process for making jet fuel including: (1) oligomerizing an olefin stream to an oligomer stream; (2) hydrogenating said oligomer stream to provide a paraffin stream; (3) separating said paraffin stream to provide a jet fuel stream and a reformer feed stream; and (4) reforming said reformer feed stream to provide a reformed stream with an increased concentration of aromatics.

Disclosed herein are embodiments of a method for making jet fuel blendstocks that comprise partially hydrogenated carbocyclic compounds and which can be used to replace aromatic-containing fuels and that exhibit suitable seal swell properties. The disclosed method embodiments utilize catalysts and reaction conditions that facilitate partially hydrogenating carbocyclic compounds present in mixtures obtained from renewable sources, such as bio-based fermentation products. The reaction product mixtures obtained from the disclosed method can be blended with blendstocks to provide fuels that avoid soot formation caused by aromatic-containing fuels and that exhibit seal swelling that meet requirements in aviation systems.

Systems and methods are provided for production of renewable jet fuel and / or jet fuel blending component fractions. The systems and methods provide for formation of jet boiling range fractions via hydrodeoxygenation and catalytic dewaxing of bio-derived feeds. The systems and methods for reducing or minimizing recycle and / or forming only a jet boiling range product and a lower boiling range product can be facilitated based on selection of a suitable feedstock and / or based on selection of suitable reaction conditions and catalyst for the catalytic dewaxing.

The invention discloses a method for synthesizing sustainable aviation kerosene through CO2 hydrogenation in biogas. The method comprises the following steps: taking Fe / Mn-CaO as a CO2 adsorption separating agent, taking NiMoGa ternary liquid metal as a catalyst for methane decarbonization hydrogen production, and taking a metal oxide-molecular sieve as a catalyst for synthesizing aryl aviation kerosene through CO2 hydrogenation. According to the metal oxide-molecular sieve catalyst for synthesizing the aromatic sustainable aviation kerosene through CO2 hydrogenation, a metal oxide (ABO3) with a perovskite structure is synthesized through a sol-gel method, and the metal oxide (ABO3) is physically mixed with a molecular sieve; a in ABO3 is lanthanum, and a B element comprises iron, chromium, cobalt or nickel; the molecular sieve contains ZSM-5 (Zeolite Socony Mobil-5), ZSM-11 (Zeolite Socony According to the oxide catalyst disclosed by the invention, a polydentate chelate is formed by metal nitrate and citric acid, and a special perovskite structure can be formed through simple drying and roasting, so that the oxide catalyst has excellent carburization resistance, and a formed oxygen-containing intermediate is diffused into a zeolite molecular sieve to form aromatic aviation kerosene; the preparation of aryl aviation kerosene from bio-based CO2 hydrogenation is realized.

The invention provides an ammonia fuel cell power generation dual-fuel scramjet engine capable of achieving energy gradient utilization, belongs to the technical field of aircraft thermal protection and power generation, and solves the problems that a traditional airborne power generation system is difficult to use due to the high incoming flow Mach number in hypersonic flight, and coking is caused in a regeneration cooling channel of a fuel decomposition gas turbine. Ammonia and aviation kerosene generate high-temperature fuel gas in a combustion chamber of the scramjet engine to push the engine to generate thrust; high-temperature waste heat of the combustion chamber is recycled through the regeneration cooling channel, fuel is heated, a part of ammonia is decomposed, and decomposed gas drives a turbine generator to generate electric energy. According to the power generation system for gradient utilization of energy, factors such as actual use temperature and pressure are fully considered, the energy utilization efficiency is effectively improved, energy waste is reduced, and reasonable adaptation of energy is achieved, so that the power generation efficiency of the whole system is improved, and the electric energy requirement of a hypersonic aircraft is greatly met.

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Separating the olefin stream (3) in a fractionation unit (4) into at least a C2-olefin-rich stream (5), a C3-olefin-rich stream (6) and a C4+-olefin-rich stream (7); c) Processing an oligomerization feed comprising a first oligomerization feed stream (8a) containing at least a portion of the C3-olefin-rich stream (6) and a second oligomerization feed stream (8b) containing at least a portion of the C4+-olefin-rich stream (7) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); d) Hydrogenating at least a portion of the oligomerized olefin stream (10); wherein the oligomerization unit (9) comprises at least a first reaction zone (9a), and a second reaction zone (9b) downstream of the first reaction zone (9a); wherein the first oligomerization feed stream (8a) is introduced into the oligomerization unit (9) at a position upstream of the first reaction zone (9a), and the second oligomerization feed stream (8b) is introduced into the oligomerization unit (9) at a position downstream of the first reaction zone (9a) and upstream of the second reaction zone (9b).

The utility model relates to a movable foldable hard pipeline refueling device, which belongs to the field of airport refueling equipment. A foldable metal pipeline unit is connected to an aircraft fuel tank, a ground well joint is connected to a control ball valve, a ground well joint connecting pipeline is connected to a balancer and a fully sealed two-way rotary joint, a control ball valve is connected to a jet fuel filter separator, an oil collecting tank is connected to a jet fuel filter separator, an accumulator is connected to an outlet pipeline of a filter / refueling control unit, a jet fuel filter separator is connected to an electrostatic eliminator, an electrostatic eliminator is connected to a flow meter, a flow meter is connected to a pipeline pressure flow controller, a deadman is connected to a pipeline pressure flow controller, a pipeline pressure flow controller is connected to a foldable metal pipeline unit, a caster is connected to the bottom of a support frame, an electrostatic grounding alarm device is connected to a support frame, a foldable pipeline is connected to a fully sealed two-way rotary joint, a foldable pipeline is connected to a caster bracket, a foldable pipeline is connected to a balancer and a ball valve, and a ball valve is connected to a pressure refueling nozzle.

Disclosed is a process for producing a jet fuel, comprising a step of converting an alcohol stream in a fluidized bed, a jet fuel and a plant associated with said process. The process involves the following steps:(a) converting a C1 to C6 alcohol stream to produce a mixture containing paraffins, olefins, aromatics, and water;(b) separating water from the mixture;(c) oligomerizing olefins; and(d) alkylating aromatics from the mixture;(e) forming a stream of hydrocarbons to be hydrogenated;(f) hydrogenating the stream of hydrocarbons to be hydrogenated;(g) recovering at least one jet fuel fraction from the hydrogenated hydrocarbon stream.Conversion step (a) is carried out in a reaction zone comprising at least one fluidized catalytic bed.In the mixture of paraffins, olefins, aromatics and water produced in conversion step (a), the ratio of the mass of C3+ olefins to the total mass of olefins is greater than or equal to 0.8.

This invention discloses an automated system and method for determining the trace total acid value of jet fuel. The system includes a sample moving unit, a titration unit, a nitrogen control unit, and a jet fuel total acid value determination unit. The sample moving unit moves the titration cup containing the sample below the titration unit. The nitrogen control unit maintains a nitrogen atmosphere inside the titration cup. The titration unit includes a porous burette, a burette tube, a photometric electrode, and a temperature electrode. The porous burette seals the titration cup. The titration unit injects titrant, mixed solvent, and mixed titration solvent into the titration cup, and determines the titration endpoint using the photometric and temperature electrodes. The jet fuel total acid value determination unit integrates the data from the titration unit to calculate the jet fuel total acid value. This invention eliminates endpoint errors that may result from subjective human judgment using manual indicators, and overcomes the need for machine vision technology, which requires the construction and intelligent training of a dataset of titration endpoint color images, in specialized instrument methods.

The application relates to a method for producing jet fuel from oil and fat raw materials, wherein the oil and fat raw materials are reacted with a hydrotreating catalyst in a hydrotreating reaction zone, the obtained liquid hydrocarbons are introduced into a first hydroisomerization reaction zone, an optional second hydroisomerization reaction zone is arranged, the obtained diesel oil fraction is recycled into the first hydroisomerization reaction zone or introduced into the second hydroisomerization reaction zone for reaction, and the reaction effluent is separated to obtain jet fuel. The application can produce high-quality biological jet fuel at a high yield.

Disclosed are systems and methods for producing renewable alcohols by fermentative processes using cell lysate or a combination of cell lysate and whole cells, as well as the cell lysate itself. The disclosure also provides processes and systems for converting renewable alcohols to transportation fuels, such as, gasoline, jet fuel, and diesel fuels.

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 invention relates to a method for producing jet fuel from a grease raw material, which comprises the following steps of: contacting the grease raw material with a hydrotreating catalyst in a hydrotreating reaction zone to react, feeding obtained liquid hydrocarbon into a first hydroisomerization reaction zone, and setting an optional second hydroisomerization reaction zone, the obtained diesel fraction is circulated back to the first hydroisomerization reaction zone or enters the second hydroisomerization reaction zone for reaction, and the jet fuel is obtained after reaction effluent is separated. The high-quality bio-jet fuel can be prepared with high yield.

The utility model relates to an automatic tester for the total acid value of jet fuel, which comprises a machine table, a titration device, an aeration device, a light source, a reflecting mirror, a camera and a controller, and a test station and a collection station are arranged on the machine table; the aeration device comprises an aeration pipe, a gas supply control element, a moving mechanism and a cleaning mechanism, the moving mechanism drives the aeration pipe to move, and the aeration pipe is communicated with a nitrogen source through the gas supply control element; the cleaning mechanism comprises an inner flushing assembly for flushing the inner wall of the aeration pipe and an outer flushing assembly for flushing the outer wall of the aeration pipe. After the test sample is measured, the moving mechanism controls the aeration pipe to lift and move to the collecting station, and then controls the inner flushing assembly and the outer flushing assembly to start, so that the inside and the outside of the aeration pipe can be flushed, and flushing wastewater is collected at the collecting station. And the flushed aeration pipe is translated to the test station again to wait for starting the next measurement. Moving and cleaning of the aeration pipe are controlled by the controller, automatic execution can be achieved, and labor is saved.

The present invention discloses a method for producing jet fuel by hydrogenation. The method comprises the following steps: (1) The jet fuel raw material and hydrogen enter a first reactor to carry out gas-phase hydrogenation reaction to obtain an effluent from the first reactor; (2) The effluent from the first reactor enters a second reactor after being pressurized. Among them, the gas-phase components are discharged upward from the second reactor, and the liquid-phase components undergo liquid-phase hydrogenation reaction downward to obtain hydrogenation heavy components; (3) The gas-phase components discharged from the second reactor are separated to obtain hydrogenation light components and hydrogen containing hydrogen sulfide; (4) After the hydrogenation heavy components and the hydrogenation light components are mixed, they are separated to obtain jet fuel products. The present invention can produce high-quality jet fuel products with high smoke points under the conditions of simple process, low energy consumption and low cost.

The invention belongs to the field of stoichiometry, and relates to a preparation method of a standard substance, in particular to a jet fuel water separation index standard substance and a preparation method thereof, a plurality of emulsifiers are screened out and are used for preparing the water separation index standard substance, so that the quantity value stability of the standard substance is greatly improved, and the stability of the standard substance is remarkably prolonged; when in use, the water separation index tester does not need to be prepared and used immediately, is convenient to operate, and improves the simplicity, accuracy and stability of verification and calibration of the water separation index tester.

The invention relates to an environmentally friendly aircraft. The aircraft stores cryogenic fuel in one or more suitably sized fuel tanks located within the fuselage of the aircraft or at other suitable locations on the aircraft, and stores non-cryogenic fuel in a plurality of standard jet fuel tanks (e.g., within the wings of the aircraft). The tank is resized using an automated aircraft resizing computing tool based on the defined mission range requirements, tank resizing logic, top aircraft requirements, and aircraft geometry and engine thrust levels to iteratively develop at least cryogenic fuel tank dimensions for a particular aircraft. A controller controls selective routing of non-cryogenic fuel or cryogenic (e.g., hydrogen) fuel to the dual fuel engine. In one mode of operation, dual fuel engines typically use cryogenic hydrogen fuel as the primary fuel and reserve non-cryogenic fuel for use only in exceptional cases for dual fuel engines to provide cleaner and more environmentally friendly operation.

Provided are an apparatus and a method for producing a synthetic fuel with which it is possible to obtain a hydrocarbon having a high selectivity of jet fuel components and to produce a jet fuel at a high yield. A synthetic fuel production device (1) for producing a predetermined synthetic fuel by a direct FT synthesis reaction using a raw material gas containing hydrogen gas and carbon dioxide, the synthetic fuel production device (1) being provided with: a reactor (9) having a cylindrical reactor main body section (9a) filled with a predetermined FT catalyst (20) for generating a direct FT synthesis reaction; a raw material gas flow rate adjustment unit (7) and / or composition adjustment units (5a, 5b) for adjusting the flow rate of the raw material gas supplied to the reactor (9); and a control device (3) that controls the linear velocity, which is the flow rate of the raw material gas per unit cross-sectional area of the reactor main body section (9a), by controlling the raw material gas flow rate adjustment section (7) and / or the composition adjustment sections (5a, 5b), and that controls the linear velocity to 0.2 m / sec to 4.0 m / sec when a given synthetic fuel is a jet fuel.

A process for oligomerizing an olefin stream with an oligomerization catalyst to produce an oligomerized olefin stream. The oligomerization may include a first stage oligomerization step of ethylene followed by a second stage oligomerization of the first stage oligomerized olefins to higher olefins. The oligomerized olefin stream may be separated into a jet fuel stream and a diesel fuel stream. The olefin stream may be obtained by converting oxygenates to olefins with an MTO catalyst.

A process separates a liquid hydrocracking stream from a liquid hydroisomerization stream, thus heat in the hydrocracking stream can be preserved. Preserving heat in the hydrocracking stream avoids having to reheat the hydrocracking stream prior to product fractionation. In particular, kerosene in the hydrocracking stream is not cooled with the hydroisomerization stream and then reheated in fractionation to distill kerosene range hydrocarbons from the diesel range hydrocarbons.

The utility model discloses distillation equipment for biological aviation kerosene production, which relates to the technical field of distillation equipment and comprises an equipment main body, an electric push rod is fixedly connected to the outer wall of the equipment main body, and one end of the electric push rod is fixedly connected with a lifting plate slidably connected with the outer wall of the equipment main body. The outer wall of the lifting plate is rotationally connected with a pulling rod, and one end of the pulling rod is rotationally connected with a connecting rod. By arranging the pull rod, when auxiliary aviation kerosene production is carried out through distillation equipment, in order to improve the synchronous protection effect on a distillation head and the shielding protection effect on the top of a collecting box under the condition that an oil drum is switched for use, the lifting plate ascends through rotation of the pull rod; and a connecting rod fixedly connected with a limiting rod is driven to slide, so that a first protection plate moves to the position below the distillation head, a second protection plate moves to the top of a collection box, the situation that kerosene leaks and is wasted is reduced, and the aviation kerosene production efficiency of the distillation equipment is improved.

The present invention discloses a method for synthesizing polycyclic alkanes from phenols derived from lignin via a one-pot two-step process. 1) In the first step of the reaction, the phenolic compound derived from lignin is first converted into a ketone compound under the action of a hydrogenation catalyst, and then the ketone compound rapidly undergoes aldol condensation under the action of a solid acid to generate a jet fuel precursor; 2) In the second step of the reaction, the product of the first step is not separated, but the reaction conditions are directly strengthened. The jet fuel precursor is directly subjected to complete hydrodeoxygenation to generate polycyclic alkanes under the action of the hydrogenation catalyst and the solid acid in the first step; the phenolic compound derived from lignin is synthesized into polycyclic jet fuel by changing the reaction conditions in a single reaction vessel. Compared with traditional chain-like jet fuel, it has a higher density and a higher calorific value and can be used as a substitute for traditional aviation fuel. The catalyst and raw materials used in the present invention are abundant in source, low in price, and easy to separate; the entire production process is simple to operate.