1035results about "Hydrocarbon oil cracking" patented technology

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 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.

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.

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.

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.

Described is a computer-implemented method for modeling an equilibrium separation in a chemical separator. The method can include representing a feedstock of the chemical separator as a collection of molecules, each molecule having a mole fraction. A cluster analysis is performed on the feedstock based on a property of the collection of molecules to generate thermodynamic lumps. A mapping identity table is generated that identifies each molecule of the collection of molecules in the feedstock. A simulation of a chemical separation of the thermodynamic lumps is performed. The mole fraction of molecules in a resultant first phase and the mole fraction of molecules in a resultant second phase is determined.

The invention belongs to the field of petrochemical engineering, and discloses a bimetallic Ni-Pt / RFE hydroisomerization catalyst and a preparation method and application thereof. The preparation method comprises the following steps: dissolving a nickel precursor in water, stirring until clarification, and dropwise adding ammonia water to obtain a mixed solution 1; rFE is added into the mixed solution 1, the pH value is adjusted to be 9-11.5, suction filtration, washing and drying are conducted after stirring, and Ni / RFE is obtained; dissolving a platinum precursor in water, stirring until the solution is clear, and dropwise adding ammonia water to obtain a mixed solution 2; and adding the Ni / RFE into the mixed solution 2, adjusting the pH value to 9-11.5, stirring, and carrying out suction filtration, washing, drying and roasting to obtain the Ni-Pt / RFE. The method is simple and convenient to operate and mild in condition, the catalyst activity and the isomerization efficiency are remarkably improved through the synergistic effect of Ni and Pt, the catalyst preparation cost is greatly reduced while the use amount of precious metal is reduced, efficient conversion of long straight-chain alkane can be achieved, and the isomerization conversion rate of n-dodecane within 60 minutes can reach nearly 90%.

The invention discloses a residual oil hydrogenation microbubble generating device, which is arranged at the front end of a residual oil hydrogenation fixed bed reactor, is used for pretreating a gas-liquid two-phase material, and comprises a first crushing assembly which is arranged in a tank body of a generating tank, is positioned at the lower part of the tank body and is provided with rotary crushing cutters which are arranged in a layered manner; the rotary crushing cutter is driven by a driving unit, rotates along a vertical rotating shaft and is used for crushing large bubbles into small bubbles; and the second crushing assembly is arranged in the tank body of the generation tank and located above the first crushing assembly, the second crushing assembly is provided with a horizontally-arranged filtering and crushing plate, and the filtering and crushing plate can be driven by the same motor in the driving unit to reciprocate in the vertical direction and is used for crushing the small bubbles into microbubbles. According to the invention, large bubbles in residual oil can be broken into small bubbles, so that the mass transfer and reaction efficiency of gas and liquid phases in a residual oil hydrogenation system is effectively improved.

A method of recycling waste lubricant. The method includes providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocracking the pretreated waste lubricant-derived oil fraction. The method has economic advantages in that waste lubricant can be recycled into fuel oil and high-grade lube base oil with a relatively high yield compared to a lube base oil manufacturing process utilizing only unconverted oil as a feedstock.

A nano-sized mesoporous zeolite beta composition and processes for the synthesis and use of the nano-sized mesoporous zeolite beta. The nano-sized mesoporous zeolite beta is synthesized using a hydrothermal treatment without drying and calcination of the zeolite prior to or after hydrothermal treatment. A process for hydrocracking a hydrocarbon feedstock using the nano-sized mesoporous zeolite beta is also provided.

Processes and facilities for producing a recycled content organic chemical compound directly or indirectly from waste plastic. Processing schemes are described herein for converting waste plastic (or hydrocarbon having recycled content derived from waste plastic) into useful intermediate chemicals and final products. The waste plastic can be liquified before being introduced to downstream processing. In some aspects, recycled content aromatics (r-aromatics) can be processed to provide recycled content paraxylene (r-paraxylene), which can then be used to provide recycled content terephthalic acid (r-TPA) and / or recycled content polyethylene terephthalate (r-PET).

The present disclosure relates to a process for conversion of hydrocracked pitch into distillates in a slurry hydro-conversion reactor in presence of hydrogen gas with recycling of a hydrocracked pitch residue to achieve improved overall conversion and minimize fresh addition of catalyst. The slurry hydro-conversion of hydrocracked vacuum residue along with recycle of hydrocracked pitch residue (4d) provides improved overall conversion of >97% with very less yield of <3 wt. % pitch (>540° C.) along with distillates (C6+−370° C.) in a yield of 55 wt. % and VGO (370-540° C.) in a yield of 28.3 wt. %. The recycling of hydrocracked pitch residue back to slurry hydro-conversion reactor facilitates the minimization of the addition of fresh catalyst to the reactor section.

Systems and methods for producing olefins and / or aromatics are disclosed. The methods include aquaprocessing of crude and / or heavy oils, at high severity, prior to processing in a steam cracking unit to produce ethylene and propylene at a mass ratio of propylene to ethylene (P / E) of 0.6 or higher. The systems include an aquaprocessing unit capable of being operated at high severity and a steam cracking unit capable of producing ethylene and propylene at a mass ratio of propylene to ethylene (P / E) of 0.6 or higher.

A method of catalytic hydrocracking. The method includes flowing a hydrocarbon feed comprising a heavy oil into a hydrocracking unit; and hydrocracking the hydrocarbon feed in the hydrocracking unit using a composite catalyst. The composite catalyst includes an ordered amorphous silica-alumina (OASA) having mesopores, a zeolite component having micropores, a first metal component, a second metal component, and a support material, where at least a fraction of the heavy oil is converted within the mesopores into an intermediate, and at least a fraction of the intermediate is further converted within the micropores to form a product stream including a middle distillate fraction.

The invention discloses a co-catalytic cracking method for biomass oil and heavy oil, which comprises the following steps: firstly, adding alkaline earth metal salt and a ligand compound into water, mixing, heating to 70 DEG C, reacting at a constant temperature, and filtering to obtain an alkaline earth metal complex; adding an alkaline earth metal complex into the biomass oil, stirring and mixing, reacting the alkaline earth metal complex serving as a deoxidizing agent with phenolic substances in the biomass oil to form a metal-phenol complex, adding an extracting agent after the reaction, uniformly mixing, dissolving the metal-phenol complex into the extracting agent, and layering the solution; and uniformly mixing the treated layered solution with heavy oil, and carrying out catalytic cracking under the action of a catalyst. The alkaline earth metal complex not only can remove oxygen-containing compounds in the biomass oil, but also can effectively resist heavy metal pollution of heavy oil and strengthen the activity of the catalyst, so that the light oil yield is remarkably increased, the proportion of coke to dry gas is reduced, the formation of coke is reduced, and the economical efficiency and environmental friendliness of the catalytic cracking process are greatly optimized.

The present invention relates to a sulfuration type hydrocracking catalyst and a preparation method and application thereof, and relates to the technical field of catalysts, the preparation method of the sulfuration type hydrocracking catalyst comprises the following steps: mixing a Y molecular sieve, amorphous silica-alumina, macroporous pseudo-boehmite, microporous pseudo-boehmite and sesbania powder, and spraying a nitric acid aqueous solution, sequentially rolling to obtain an extrudable paste, extruding into strips, drying and roasting to prepare a catalyst carrier; soluble tungsten salt and soluble nickel salt are dissolved in water to prepare a uniform solution, and steeping liquor is obtained. The invention provides a sulfuration type hydrocracking catalyst which is completely sulfurized and has fully exposed active sites, and a preparation method thereof. The sulfuration type hydrocracking catalyst is used in the field of distillate hydrocracking. The catalyst adopts a mild vulcanization method, the vulcanization process does not pass through a metal oxidation state, sulfur-containing tail gas is not generated, and the preparation method is simple, low in cost and environment-friendly, meets the green development requirement and is suitable for industrial amplification application.

This invention relates to the technical field of organometallic compound production, and discloses a method and apparatus for synthesizing a homogeneous organic molybdenum-containing compound and its application. The method is implemented in a system containing a first reaction unit and a second reaction unit. The first reaction unit comprises at least two batch reactors connected in series. The batch reactors are cylindrical structures containing an inner cylinder and an outer cylinder. The inner cylinder and the outer cylinder are kept in communication so that the material in the inner cylinder can overflow into the outer cylinder. The method includes: introducing a molybdenum-containing material and an organic ligand material into reaction unit 1 for a first reaction to obtain gas phase I and liquid phase I; introducing the organic ligand material and the liquid phase I into the second reaction unit for a second reaction to obtain gas phase II and the homogeneous organic molybdenum-containing compound. The method provided by this invention features high reaction mass transfer efficiency and high conversion rate.

The invention provides a preparation method of a diesel oil hydrocracking catalyst. The method comprises the following steps: carrying out kneading molding on a Y molecular sieve loaded with hydrogenation active metal and alumina loaded with hydrogenation active metal to obtain the final hydrocracking catalyst, the average pore size of the aluminum oxide is greater than that of the Y molecular sieve. The catalyst prepared by the method can improve the diffusion performance of macromolecules in inferior diesel oil in molecular sieve pore channels, improve the catalytic reaction activity, lower the reaction temperature, lower the energy consumption and prolong the operation cycle of a device.

The present invention relates to a process for the hydroconversion of a heavy hydrocarbon feedstock implementing at least one entrained bed reactor in the presence of a solid catalyst entrained in the form of single-sheet molybdenum disulfide (MoS2) nanoparticles, obtained according to an ex-situ preparation process from an organosoluble precursor comprising at least one molybdenum-sulfur bond.

The utility model belongs to the field of high-octane gasoline production, and particularly relates to a device for producing high-octane gasoline from topped oil through non-hydroisomerization. The raw material conveying pump is connected with the C4 feeding device through a valve and is used for conveying the raw materials; the raw material / reaction product heat exchanger is connected with the raw material conveying pump and is used for carrying out heat exchange on the raw materials; according to the utility model, the topped oil of the reforming device is used as a raw material, a second-section feeding process and a third-section feeding process are added in the reactor, and a circulating gas process from the outlet of the compressor to the reaction system is added, so that the raw material / reaction product is obtained. Under the non-hydrogen condition, the reaction depths of alkane cracking, selective hydrogenation, isomerization and the like of the low-octane-number topped oil are improved on the basis of the catalyst, the low-octane-number topped oil is converted into the high-octane-number gasoline blending component, the octane number of the produced gasoline can reach 89-90, the saturated vapor pressure is 65-80 kPa, the improvement cost is low, and the production operation is simple.

To provide, regarding hydrotreating reaction of raw oil including gas oil fraction, an information processing method capable of estimating a hydrogen consumption, a hydrogen consumption calculation device capable of estimating the hydrogen consumption, a hydrogen consumption calculation program, and a non-temporary readable recording medium for a computer.SOLUTION: An information processing method, regarding hydrotreating reaction of raw oil including gas oil fraction, includes: an information acquisition step to acquire information on raw oil in a fixed period, and information on product oil; and a hydrogen quantity calculation step to calculate a hydrogen quantity consumed by the hydrotreating reaction in fixed period on the basis of the acquired information on raw oil, and the acquired information on product oil.SELECTED DRAWING: None

Systems and methods are disclosed for detecting temperature excursion in a chemical plant or petrochemical plant or refinery. Aspects of the disclosure provide an enhanced control system for a reactor, such as in hydroprocessing. The enhanced control system may provide early warnings of impending undesirable events, directly or indirectly manipulate certain process variables to reduce undesirable outcomes, and / or directly or indirectly manipulate of certain process variables so as to place a reactor unit in a "safe park" state. This may avoid a high temperature trip, depressuration, associated operating risks, allow for faster recovery from temperature excursions, and / or avoid unplanned emergency shutdowns of the reactor, chemical process, plant, or refinery.

According to one embodiment, a heavy oil may be processed by a method that may include upgrading at least a portion of the heavy oil to form an upgraded oil, where the upgrading comprises contacting the heavy oil with a hydrodemetalization catalyst, a transition catalyst, a hydrodenitrogenation catalyst, and a hydrocracking catalyst to remove at least a portion of metals, nitrogen, or aromatics content from the heavy oil and form the upgraded oil. The method may further include passing at least a portion of the upgraded oil to a separation device that separates the upgraded oil into one or more transportation fuels; and where the final boiling point of the upgraded oil is less than or equal to 540 °C.

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.

The present invention discloses a hydrocracking method for producing chemical raw materials. The method includes: (1) in the presence of hydrogen, a hydrocarbon oil raw material enters a first hydrocracking reaction zone to selectively crack the n-alkanes in the hydrocarbon oil raw material to obtain a first hydrocracking product; wherein, in the first hydrocracking product, the mass content of C7 + n-alkanes is controlled below 5.0%; (2) in the presence of hydrogen, the first hydrocracking product enters a second hydrocracking reaction zone to obtain a second hydrocracking product containing monocyclic cyclic hydrocarbons; (3) the second hydrocracking product is separated and fractionated to obtain a gas fraction, light naphtha, and heavy naphtha. When using the hydrocarbon oil as a raw material to produce chemical raw materials, this method can significantly improve the yield and quality of chemical raw materials.

A process for producing a sustainable aviation fuel component is described, wherein the process comprises two integrated sub-processes A and B. The sub-processes A comprises providing a renewable feedstock comprising triglycerides, hydrolyzing the triglycerides into free fatty acids which are subjected to a hydrocracking to produce a first hydrocarbon intermediate A. In the sub-processes B of the integrated process, any light hydrocarbons, oxygenates and glycerol released in the sub-processes A are refined into further hydrocarbons, hydrocarbon intermediate B, which together with hydrocarbon intermediate A are isomerized and a sustainable aviation fuel or sustainable aviation fuel component is provided.

The application relates to a method for efficient utilization of solid waste, in particular to a catalytic method for polyolefin waste. The application provides a preparation method of a catalyst for catalyzing polyolefin waste, which comprises the following steps: 1) mixing an acid molecular sieve and an active metal precursor, and roasting to obtain a catalyst precursor; and 2) reducing the catalyst precursor by a reducing agent to obtain the catalyst. In the application, the acid molecular sieve is used as a carrier, solid ion exchange is carried out through high-temperature roasting, the active metal component is solidified in the molecular sieve channel structure, the reduced catalyst has rich acid sites, defect sites and high-dispersed active metals, and in combination with the shape selection and confinement of the molecular sieve structure, efficient conversion of the polyolefin waste into naphtha can be realized.

Methods for converting hydrocarbonaceous feedstocks to value added products via a hydroisomerization / hydrocracking catalyst that contains at least two or more zeolitic materials comprising hierarchical porosity, each material having a mesostructure between 2-50 nm are described. Specifically, the improved acid function in these catalysts is obtained by mesoporizing a first zeolite and blending the mesoporized first zeolite with an as-synthesized mesoporous second zeolite; or mesoporizing a first zeolite; mesoporizing a second zeolite, and blending the mesoporized first zeolite with the mesoporized second zeolite; or blending a first zeolite and a second zeolite; and mesoporizing the blend of the first zeolite and the second zeolite; wherein the first zeolite comprises Y zeolite, and the second zeolite comprises a one-dimensional, 10-ring zeolite.