1810results about "Hydrocarbon oil cracking" patented technology

A process and system for upgrading an organic feedstock including providing an organic feedstock and water mixture, feeding the mixture into a high-rate, hydrothermal reactor, wherein the mixture is rapidly heated, subjected to heat, pressure, and turbulent flow, maintaining the heat and pressure of the mixture for a residence time of less than three minutes to cause the organic components of the mixture to undergo conversion reactions resulting in increased yields of distillate fuels, higher-quality kerosene and diesel fuels, and the formation of high octane naphtha compounds. Hydrocarbon products are cooled at a rate sufficient to inhibit additional reaction and recover of process heat, and depressurizing the hydrocarbon products, and separating the hydrocarbon products for further processing. The process and system can include devices to convert olefinic hydrocarbons into paraffinic hydrocarbons and convert olefinic byproduct gas to additional high-octane naphtha and / or heavier hydrocarbons by one of hydrogenation, alkylation, or oligomerization.

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of lamellar symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and / or lamellar symmetry observable by microscopy.

[Problem] To provide a method for efficiently producing a chemical product from waste tires by improving steps in a series of processes and also efficiently obtaining a carbide. [Solution] Provided is a method for producing a chemical product and a carbide, the method comprising: a thermal decomposition step for obtaining a first gas, a thermal decomposition oil and a residue through thermal decomposition of fragmented waste tires; a carbide recovery step for recovering a carbide from the residue; a low temperature hydrogenation step for subjecting a raw material oil containing at least a portion of the thermal decomposition oil to a low temperature hydrogenation treatment at a temperature of 180-350ºC to obtain a low temperature hydrogenated oil; a hydrocracking step for subjecting a raw material oil that contains at least a portion of the low temperature hydrogenated oil to a hydrocracking treatment at a temperature higher than that in the low temperature hydrogenation treatment so as to obtain a second gas, a light fraction having a boiling point of 350°C or lower and a heavy fraction having a boiling point of higher than 350°C; and a steam cracking step for steam cracking a steam cracking raw material oil that contains at least a portion of the light fraction so as to obtain a chemical product and a raw material for carbide production, which comprises a heavy fraction having a 10% distillation temperature of 190°C or higher. The thermal decomposition temperature in the thermal decomposition is 350-750ºC.

The present invention relates to a process for the treatment of a plastics pyrolysis oil, comprising:a) the hydrogenation of said feedstock as a mixture with at least a part of the liquid effluent resulting from stage c) and in the presence of hydrogen and of a catalyst at a temperature between 14° and 340° C.;b) the hydrotreating of said hydrogenated effluent in the presence of hydrogen and of a catalyst;c) a separation of the hydrotreated effluent operated at high temperature and high pressure, in order to obtain a gaseous effluent and a liquid effluent, a part of which is recycled upstream of stage a),d) a separation operated at low temperature and high pressure and fed with the gaseous effluent and the other part of the liquid effluent resulting from stage c) and an aqueous solution, in order to obtain a hydrocarbon effluent.

The invention relates to the technical field of catalysis, and particularly discloses a hydroisomerization catalyst as well as a preparation method and application thereof. The hydroisomerization catalyst is prepared from the following components in parts by weight: 97.5 to 99.4 parts of molecular sieve carrier and 0.5 to 1.5 parts of oxide containing active metal, 0.1 to 1.0 part of an oxide of a metal containing an auxiliary agent; the molecular sieve carrier is synthesized by adopting a double-template agent; in the oxide containing the active metal, the active metal is selected from one or more of a platinum-palladium combination, a molybdenum-tungsten combination and a nickel-cobalt combination; in the oxide containing the additive metal, the additive metal is cerium; the preparation method comprises the following steps: co-impregnating the molecular sieve carrier with a salt solution containing the active metal and the additive metal, drying, and performing hydrogen reduction to obtain the hydroisomerization catalyst. When the hydroisomerization catalysis is applied, the conversion rate, the selectivity and the water-oxygen tolerance are synergistically considered and improved, and the overall application effect and the service life are remarkably improved.

The present invention provides a method for producing synthetic fuel from water and carbon dioxide. The method includes the steps of (a) preparing water-derived hydrogen, (b) preparing carbon dioxide, (c) introducing the hydrogen and carbon dioxide into a first reaction to produce a first product comprising synthesis gas, (d) introducing the synthesis gas into a second reaction to produce a second product comprising syncrude, (e) dividing the syncrude oil into a plurality of fractions comprising a first fraction, (f) introducing at least one fraction of the plurality of fractions into a hydrogenation reaction to produce a third product, and (g) recovering a fraction corresponding to a boiling point range of the first fraction from the third product. The present invention also provides an aviation fuel produced by the method.

The invention provides an efficient environment-friendly petroleum passivator as well as a preparation method and application thereof, and belongs to the technical field of passivators. The preparation method comprises the following steps: reacting bismuth nitrate with tetra (4-carboxyl phenyl) porphyrin and benzoic acid to prepare a carboxyl phenyl porphyrin bismuth-MOF material, reacting antimony nitrate with tetra (4-pyridyl) porphyrin and benzoic acid to prepare a pyridyl porphyrin antimony-MOF material, and performing sol-gel reaction on lanthanum isopropoxide and cerium isopropoxide to prepare lanthanum-cerium sol; the preparation method comprises the following steps: mixing calcium nitrate, magnesium chloride, organic acid, organic amine and hydrogen peroxide for reaction to prepare a calcium / magnesium organic matter, mixing the calcium / magnesium organic matter with other substances, adding the mixture into an acetonitrile / ethanol mixed solvent, and uniformly stirring and mixing to prepare the efficient environment-friendly petroleum passivator. The high-efficiency environment-friendly petroleum passivator prepared by the invention is green, safe, non-toxic and efficient, has better capturing and passivating effects on metal ions such as nickel and vanadium in the catalytic cracking reaction process of heavy oil, improves the activity of a catalyst, prolongs the service life of the catalyst, and thus, has a wide application prospect.

The invention discloses a hydrocracking catalyst as well as a preparation method and application thereof. The catalyst comprises a carrier and an active metal component, the carrier comprises a modified Y molecular sieve and aluminum oxide, and the modified Y molecular sieve has the following properties: the crystal particle size is 500 nm or less, the molar ratio of silicon oxide to aluminum oxide is 8-55, the specific surface area is 640-800 m < 2 > / g, the unit cell parameter is 2.433-2.460 nm, and the average pore size is 10-30 nm; the active metal component comprises Mo and a group VIII metal element; the Mo comprises + 5 valence Mo; the group VIII metal element exists in the catalyst in the form of metal phosphide. The catalyst has excellent isomerization performance and aromatic hydrocarbon conversion capability, and is suitable for a hydrocracking process for producing special oil and lubricant base oil.

Methods and systems for mixing dissimilar hydrocarbon feedstock materials to form hydrocarbon feedstock blends for subsequent processing. The dissimilar hydrocarbon feedstock materials can differ by chemical composition, polarity, solubility, and / or physical state and include one or more of biomass-derived materials, non-petroleum-derived oils or fats, polymers, fabrics or textiles, paper or cardboard, rubber, waste products, pyrolysis products of the foregoing, or petroleum-derived materials. Efficient and thorough mixing of the dissimilar hydrocarbon feedstock materials is performed by static inline mixing to form an intermediate blend, which is further mixed by high shear mixing to form the hydrocarbon feedstock blend. The methods and systems may involve other processing equipment e.g., strainers, filters, pumps, furnaces, heat exchangers, reactors, separators, tanks, and / or distillation columns. The hydrocarbon feedstock blend may be further processed by hydrocracking or hydroconversion e.g., by ebullated bed, fixed bed, or slurry bed reactor), solvent deasphalting, coking, fluid catalytic cracking, hydroprocessing, or hydrotreating.

Embodiments of systems and methods to produce aviation fuel are disclosed. An example of a method to produce aviation fuel includes fractionating a renewable diesel feedstock in a fractionator to produce a C8− fraction, a C8-18 fraction, and a C18+ fraction. Additionally, the method includes providing the C8-18 fraction to an isomerization reactor to produce an aviation fuel product. The method includes supplying at least a portion of the C18+ fraction to a hydrocracking reactor to produce a hydrocracked product. The method further includes recycling at least a portion of the hydrocracked product to the fractionator for fractionating along with the renewable diesel feedstock.

Disclosed herein is a hydrocarbon component comprising predominantly a C15 to C22 normal paraffin, a C15 to C22 single branched isoparaffin, and a C15 to C22 multi-branched isoparaffin. In the hydrocarbon component, the weight ratio of isoparaffins to n-paraffins is higher than that of hydrocarbon components in the prior art. Due to its improved properties, the hydrocarbon component according to the invention can be used for a wide range of applications, in particular in north grade diesel fuels, where it can be incorporated in higher proportions.

A process for reducing the environmental contaminants in a ISO 8217 compliant Feedstock Heavy Marine Fuel Oil, the process involving: mixing a quantity of the Feedstock Heavy Marine Fuel Oil with a quantity of Activating Gas mixture to give a feedstock mixture; contacting the feedstock mixture with one or more catalysts to form a Process Mixture from the feedstock mixture; separating the Product Heavy Marine Fuel Oil liquid components of the Process Mixture from the gaseous components and by-product hydrocarbon components of the Process Mixture and, discharging the Product Heavy Marine Fuel Oil. The Product Heavy Marine Fuel Oil is compliant with ISO 8217 for residual marine fuel oils and has a sulfur level has a maximum sulfur content (ISO 14596 or ISO 8754) between the range of 0.05% wt. to 0.5% wt. The Product Heavy Marine Fuel Oil can be used as or as a blending stock for an ISO 8217 compliant, IMO MARPOL Annex VI (revised) compliant low sulfur or ultralow sulfur heavy marine fuel oil. A device for conducting the process is also disclosed.

The invention relates to the technical field of treatment of biological crude oil, in particular to a method for preparing traffic fuel oil from hydrothermal liquefied biological crude oil. The method comprises the following steps: carrying out distillation treatment on hydrothermal liquefied biological crude oil to obtain purified biological oil and distillation residues; carrying out hydrocracking reaction on the purified bio-oil to obtain cracked bio-oil; performing catalytic hydrogenation reaction on the cracked bio-oil to obtain refined bio-oil; and fractionating the refined bio-oil to obtain the traffic fuel oil. By means of the method, conversion from hydrothermal liquefaction of biological crude oil to traffic fuel oil which can be applied to diesel oil, gasoline and aero-engines is achieved. Distillation residues generated in the distillation process are subjected to metal recovery to prepare high-quality biochar for subsequent field returning. The hydrogen used in the hydrogenation process can come from hydrothermal liquefaction wastewater treatment, so that full recycling and energy regeneration of raw materials are realized.

A method of transporting hydrogen may comprise providing hydrogen gas comprising a first hydrogen gas portion produced by a method with no direct carbon emissions to the atmosphere and a second hydrogen gas portion produced by a method with direct carbon emissions to the atmosphere; at a first hydrocarbon processing facility, hydrogenating a hydrocarbon feed in the presence of the hydrogen gas to form a hydrogenated effluent; transporting a portion of the hydrogenated effluent from the first hydrocarbon processing facility to a second hydrocarbon processing facility; and at the second hydrocarbon processing facility, dehydrogenating the portion of the hydrogenated effluent to form a hydrogen gas product. On average, a mass flow rate of the first hydrogen gas portion may be at least 90% of a mass flow rate of the hydrogen gas product. The first hydrocarbon processing facility and the second hydrocarbon processing facility may be separated by a distance of at least 100 km.

The invention discloses a catalytic cracking system and a catalytic cracking method, relates to the technical field of catalytic cracking, and aims to solve the technical problems that in the prior art, the circulation amount of a catalyst is difficult to adjust, steam distribution is difficult to improve, the settler cleaning effect is poor, and the petroleum refining quality is affected. Comprising a lifting pipe, a catalyst connector arranged outside the lifting pipe and a feeding oil port. In the catalytic cracking reaction process, through cooperation of the guide assembly, on one hand, raw material gas can uniformly react with steam for multiple times, it is ensured that the raw material obtains enough steam for gasification, and then the risk of coking is reduced; according to the catalytic cracking system, gas can be in stable contact with steam in the circulation process, the reaction time of the raw materials and the steam is guaranteed, the possibility that the raw materials are not gasified and coked is further reduced, and the effect of guaranteeing the quality and the refining efficiency of petroleum refined by the catalytic cracking system is further achieved.

Provided is a continuous process for converting waste plastics to recycle for polyethylene polymerization. The process includes the steps of selecting a waste plastic comprising polyethylene and / or polypropylene, and preparing a blend of petroleum and the selected plastic. The amount of plastic in the blend comprises less than 20 wt% of the blend. The blend is passed to a refinery / hydrocracking unit. Liquefied petroleum gas C 3 -C 4 The olefin / paraffin mixture, and optionally naphtha, is recovered from the hydrocracking unit and passed to a steam cracker for ethylene production. A heavy fraction is also recovered from the hydrocracking unit and may be passed to an isomerization dewaxing unit to prepare base oil.

A process for separating fillers from catalysts and gases in plastics in a fluidized bed catalytic pyrolysis process is described that converts waste plastics, polymers, and other waste materials to useful chemicals and fuel products, such as aromatics such as paraffins, olefins, and BTX.

Provided is a continuous process for converting waste plastics to recycle for polypropylene polymerization. The process includes the steps of selecting waste plastics comprising polyethylene and / or polypropylene, and preparing a stable blend of petroleum and the selected plastics. The amount of plastics in the blend constitutes less than 20 wt% of the blend. The blend is passed to a refinery-hydrocracking unit. A liquefied petroleum gas C3 olefin / paraffin mixture is recovered from the hydrocracking unit. The C3 paraffins and C3 olefins are separated into different fractions, the C3 olefin fraction is passed to a propylene polymerization reactor, and the C3 paraffin fraction is optionally passed to a dehydrogenation unit to produce additional propylene. A heavy fraction is also recovered from the hydrocracking unit and can be passed to an isomerization dewaxing unit to prepare base oil.

A pyrolysis oil is contacted with a hydrocracking catalyst disposed within a hydrocracking unit to convert at least a portion of the pyrolysis oil into a lower alkane to produce a hydrocracking product stream. The hydrocracking product stream is separated into an ethane feed stream comprising ethane and a C3+ feed stream comprising at least one of a C3 alkane, a C4 alkane, or a higher alkane. The C3+ feed stream is diluted with steam to form a steam cracking feed stream. The steam cracking feed stream is heated in a steam cracker to convert at least a portion of the C3+ feed stream to ethylene. The ethane feed stream is diluted with an oxidant to form an oxidative dehydrogenation (ODH) feed stream. The ODH feed stream is contacted with an ODH catalyst disposed within an ODH reactor to convert at least a portion of the ethane to ethylene.

The present disclosure provides a method for preparing a Sustainable Aviation Fuel (SAF), the method comprising: a step of preparing a renewable feedstock, a step of preparing a renewable feedstock, a step of preparing a renewable feedstock, a step of preparing a renewable feedstock, a step of preparing a renewable feedstock, a step of preparing a renewable feedstock, a step of preparing a renewable feedstock, and a step of preparing the SAF, and a step of preparing the SAF. And a step for introducing the renewable feedstock as a reactant into a hydrogenation reaction in the presence of a catalyst comprising a metal and a zeolite, the zeolite being a 1D (dimensional) 10MR (membered-rns) zeolite, the conversion rate of the hydrogenation reaction of a fraction exceeding the boiling point of the SAF being 50% or less. The process enables the production of aviation fuels from environmentally friendly feedstocks. In addition, the SAF prepared by the method can replace aviation fuels previously prepared from fossil raw materials. In addition, the emission of carbon dioxide into the atmosphere can be reduced, and therefore it is expected that global warming caused by the emission of carbon dioxide can be suppressed.

Provided is a stable and efficient process for preparing ethylene in improved yields when starting with an industrial feedstock. Industrial feedstocks like vacuum gas oils, plastics- or tire-derived pyrolysis oils or renewable feedstocks generally comprise at least 5 wt. % C7 + n-paraffins or n-paraffin moieties. The reaction is run in the presence of an LTA type zeolite, which zeolite has an acid site concentration preferably about 2.7 mol / l or greater. A boiling range of n-paraffins is then collected from the hydroprocessing reactor comprising C2-C6 n-paraffins. The collected C2-C6 n-paraffins can then be pyrolyzed in a steam cracker with good results including improved ethylene production.

A process for improving yield of kerosene and / or diesel from a renewable feedstock involves hydrotreating a renewable feedstock and hydroisomerizing the hydrotreated liquid. The isomerized effluent is separated to produce an offgas stream, at least one fuel stream having a desired boiling point range, and a heavy fraction having a boiling point greater than the desired boiling point range. The heavy fraction is passed to a hydrocracking zone to produce a hydrocracked effluent. The hydro-cracked effluent is passed to the hydroisomerization zone.

[Problem] To provide a method that, by improving each step in a series of processes, can efficiently produce chemical products from waste tire-containing waste materials. [Solution] The chemical product production method comprises: a pyrolysis step for obtaining a first gas fraction, a pyrolysis oil, and a residue by pyrolyzing a pulverized material from a waste tire-containing waste material; a low-temperature hydrogenation step for obtaining a low-temperature hydrogenated oil by subjecting a starting oil containing at least a portion of the pyrolysis oil to a low-temperature hydrogenation treatment at 180°C to 350°C; a hydrocracking step for subjecting a starting oil containing at least a portion of the low-temperature hydrogenated oil to a hydrocracking treatment at a temperature higher than that of the low-temperature hydrogenation treatment, to obtain a second gas fraction, a light fraction having a boiling point of not more than 350°C, and a heavy fraction having a boiling point above 350°C; and a steam cracking step for subjecting a steam cracking starting oil containing at least a portion of the light fraction to a steam cracking treatment to obtain a chemical product, wherein the amount of the pyrolysis oil in the pyrolysis step is at least 40 mass% with reference to the total amount of the first gas fraction, pyrolysis oil, and residue.

The invention belongs to the technical field of synthesis of catalyst carrier materials, and particularly relates to amorphous silica-alumina containing moderately strong # imgabs0 # acid as well as a preparation method and application of the amorphous silica-alumina. According to the method disclosed by the invention, the contents of four-membered rings, five-membered rings and six-membered rings of molecular sieve secondary structure units contained in an amorphous sample are effectively modulated by changing factors such as an aluminum source, crystallization treatment temperature and crystallization treatment time; the ASA sample is formed by stacking a molecular sieve secondary structure unit and a nanoscale molecular sieve crystal nucleus, so that effective regulation and control of the content of the medium-strength # imgabs 1 # and the content of # imgabs 2 # at different positions in the whole are realized. The Pt / ASA type hydrocracking catalyst prepared by the method shows higher activity and diesel oil yield in a reaction for producing diesel oil by Fischer-Tropsch wax hydrocracking, and a new preparation strategy is provided for development of industrial hydrocracking catalysts taking Fischer-Tropsch wax as a raw material.

The present disclosure relates to methods for petrochemical production integrating a slurry phase hydrocracking process and an inline hydrotreating process. A slurry-phase hydrocracking feed comprising residue stream and / or a deasphalted residue stream is processed in a slurry-phase hydrocracking reaction zone to produce slurry-phase hydrocracking effluents. A first stream of slurry-phase hydrocracking effluents is discharged including unreacted hydrogen and which is under hydrogen partial pressure. The slurry-phase hydrocracking effluents are processed in an inline hydrotreating zone for hydrodesulfurization and / or hydrodenitrogenation to produce a hydrotreated effluent. Downstream FCC and petrochemicals production complex units are used to produce light olefins and aromatic products.

The invention relates to the technical field of catalysts, and discloses a heavy aromatics lightening catalyst and a preparation method thereof.The preparation method comprises the steps that deionized water, a nickel source and a molybdenum source are added into a container and stirred, then the solution is poured into the container containing a modified molecular sieve, drying, roasting and cooling are conducted after dipping, and the heavy aromatics lightening catalyst is obtained. A large number of carboxyl groups, imino groups and hydroxyl groups are introduced on the surface of the molecular sieve and are subjected to coordination complexation with nickel and molybdenum, and nickel-molybdenum oxide generated by high-temperature calcination can be uniformly distributed in a molecular sieve matrix, has more nickel-molybdenum catalytic active centers, can effectively catalyze C9 < + > heavy aromatics to generate light aromatics BTX, and can be used for preparing the light aromatics BTX. And the catalyst has good practical application in preparation of light aromatic hydrocarbon BTX by catalyzing heavy aromatic hydrocarbon.

Provided is a continuous process for converting waste plastics to recycle for polyethylene polymerization. The process includes the steps of selecting waste plastics comprising polyethylene and / or polypropylene, and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend constitutes less than 20 wt% of the blend. The blend is passed to a refinery-crude unit. A liquefied petroleum gas C3-C4 olefin / paraffin mixture, and optionally a naphtha stream, are recovered from the crude unit and passed to a steam cracker for ethylene production. The product stream from the crude unit can also be passed to a hydrocracking unit, and the recovered heavy fraction can then be passed to an isomerization dewaxing unit to prepare base oil.

The invention discloses a hydro-upgrading catalyst as well as a preparation method and application thereof, and belongs to the technical field of coal chemical industry. The catalyst comprises active metal and a carrier, wherein the active metal is loaded on the outer surface and in a pore channel of the carrier; the active metal comprises a first active metal and a second active metal; the first active metal comprises metal Ni or metal Co; the second active metal comprises metal Mo or metal W; the carrier comprises a mixture of pseudo-boehmite and a modified molecular sieve; the modified molecular sieve is obtained by modifying a molecular sieve with a modifier; the modifier is selected from at least one of boric acid, zirconium sulfate and magnesium sulfate. According to the novel hydro-upgrading catalyst provided by the invention, the acidity of the molecular sieve is moderately inhibited and the cracking ability of the catalyst is limited by introducing the specific modifier into the molecular sieve, so that the mitigation of hydrocracking is facilitated; the hydro-upgrading catalyst is reasonable in acid property, moderate in cracking activity and stable in pore structure.

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.

The invention provides a suspended bed hydrogenation reactor which comprises a box body, a hollow pipe which penetrates through the box body and is rotatably connected with the box body is arranged in the box body, the outer wall of the hollow pipe is fixedly connected with two L-shaped hollow rods communicated with the hollow pipe, and the outer wall of each L-shaped hollow rod is fixedly connected with a plurality of stirring rods; a plurality of through holes are formed in each L-shaped hollow rod in a penetrating manner; and the box body is fixedly connected with a product discharge port communicated with the box body. Raw oil and hydrogen discharged through a plurality of through holes are subjected to contact reaction, and materials are stirred in combination with rotation of a hollow pipe, an L-shaped hollow rod and a stirring rod, so that the hydrogen is in full contact with the materials, and the reaction effect is good; through rotation of the hollow pipe and cooperation of the hollow pipe and the reciprocating screw rod, the reciprocating screw rod, the L-shaped hollow rod and the stirring rod can move up and down while rotating, the contact effect of materials and hydrogen is better, the reaction is more sufficient, the effect and quality of hydrogenation reaction of raw oil are remarkably improved, and the production efficiency is improved.