91results about "Naphtha reforming" patented technology

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).

A method for scheduling a naphtha cracking center by at least one processor, includes the steps of: obtaining input information; determining, by the at least one processor, incoming tank information using a first agent based on the input information, wherein the first agent is a first artificial intelligence device configured to be learned by reinforcement learning; determining, by the at least one processor, mixing tank combination information using a second agent, wherein the second agent is a second artificial intelligence device configured to be learned by reinforcement learning; and determining, by the at least one processor, cracking furnace operation information using a third agent, wherein the third agent is a third artificial intelligence device configured to be learned by reinforcement learning.

The invention refers to the method for producing gasolines or aromatic compound concentrates, where three streams are used as feedstock, one of which includes hydrocarbon fraction, the second stream includes oxygenate, the third stream includes olefin-containing fraction with one or more olefins selected from the group consisting of ethylene, propylene, normal butylenes, isobutylene, in total from 10 to 50 wt %, and where three reaction zones filled with zeolite catalyst are used, with distribution of hydrocarbon fraction and oxygenate to the first reaction zone, and with olefin-containing fraction distributed over the three reaction zones, with the third stream mass fraction distributed to the final reaction zone higher than the mass fraction of the third stream distributed to each of the previous reaction zones. This method allows to increase the yield of C5+ hydrocarbons, enhance n-hexane and n-heptane conversion, reduce benzene content in the product, avoid recycling of gaseous products and decrease consumption of oxygenates. 1 independent claim and 35 dependent claims in the formula, 12 examples, 7 tables.

The application belongs to the technical field of new materials, and relates to a catalyst based on Sn modified KL molecular sieve as well as a preparation method and application thereof. An aluminum source and a potassium source are added into water to prepare a KAlO2 solution, an ethanol solution of a divalent tin salt is added into a silicon source to uniformly mix to obtain a mixed solution, the KAlO2 solution is added into the mixed solution to fully stir to obtain an initial sol, the initial sol is subjected to crystallization treatment, and then is heated to 450-650 DEG C to perform calcination treatment to obtain Sn modified KL molecular sieve, and Pt is loaded on the Sn modified KL molecular sieve by using an atomic layer deposition method. The catalyst based on the Sn modified KL molecular sieve prepared by the application has better catalytic performance in a naphtha reforming reaction for preparing aromatic hydrocarbons.

Proposed is a method for manufacturing aviation fuel, the method including preparing a feed, preparing an FT syncrude by subjecting the feed to a Fischer-Tropsch (FT) reaction, wherein the FT syncrude includes a first fraction and a kerosene fraction, the first fraction being a fraction with a boiling point range below that of kerosene, and the total content of the first fraction and the kerosene fraction in the FT syncrude being equal to or greater than 85 wt %, subjecting the first fraction to a reaction for increasing the boiling point, wherein the first fraction is converted to the second fraction, and the second fraction has a higher boiling point than the first fraction, and collecting aviation fuel from the kerosene fraction and the second fraction.

Systems and methods of producing biocrude oil include a well having a depth, a top positioned at surface, a bottom portion positioned at a subterranean location, the well comprising casing and tubing positioned therein, forming an annulus. The casing and tubing define a hydrothermal liquefaction (HTL) reaction zone in a bottom portion of the well and a heat transfer and separation zone above the HTL reaction zone. The well includes a cable having an electric heating element positioned in the tubing in the HTL reaction zone configured to transfer energy to biomass slurry flowing through the tubing, converting some of the biomass slurry into biocrude oil by HTL. The well depth and the electrical heating element are sized to produce temperature and pressure in the HTL reaction zone sufficient to form sub-critical water and produce a product fluid comprising the biocrude oil.

A method for reducing or preventing corrosion or fouling in an apparatus for carrying out a chemical process, where corrosion or fouling is caused by acidic compounds present in the chemical process, which comprises the addition of at least one quaternary ammonium hydroxide of the formula (I) to the apparatus, wherein the chemical process is carried out: [Chem. 1] where R1, R2, R3 are each independently C1-C10 alkyl; R4 is inter alia C1-C18 alkyl, benzyl, monocycloalkyl having 5, 6, 7 or 8 carbon atoms, bicycloalkyl having 6 to 8 carbon atoms, tricycloalkyl having 7 to 10 carbon atoms, where monocycloalkyl, bicycloalkyl and tricycloalkyl are unsubstituted or substituted by 1 or 2 methyl groups, or tri-C1-C4 alkyl ammonium groups. R1 and R2 together with the nitrogen atom may also form a 5 or 6-membered, saturated nitrogen heterocycle, which is unsubstituted or carries 1 or 2 methyl groups; and / or R3 and R4 together with the nitrogen atom may also form a 5 or 6-membered, saturated nitrogen heterocycle, which is unsubstituted or carries 1 or 2 methyl groups.

According to a first aspect, the present invention relates to a process and apparatus for the production of aromatic compounds, in which the raffinate (16) from an aromatic extraction unit (14) is sent to a dedicated catalytic reforming unit (17) to produce a reformate effluent (18), which is successively treated by: a recontacting section (4) to separate hydrogen (5); a stabilization section (7) to separate C1-C2 hydrocarbon compounds (8) and C3-C4 or C3-C5 hydrocarbon compounds (9); and a reformate separation column (11) to separate a C6-C8 fraction (12) and a C8+ fraction (13), the C6-C8 fraction (12) being sent back to the aromatic extraction unit (14). The present invention also relates to a method for modifying an existing apparatus for the production of aromatic compounds, comprising installing the process according to the first aspect in the existing apparatus. Figure 1 to be published

The invention discloses a preparation method of a C5 and C6 alkane isomerization alkylation catalyst, which comprises the following steps: (1) adding a roasted MOR molecular sieve into alkali liquor, and carrying out ultrasonic oscillation, so that the MOR molecular sieve is partially dissolved in the alkali liquor to obtain alkali liquor A with a basic structural unit of an MOR topological structure; (2) adding a nano ZSM-5 molecular sieve and an MOR seed crystal into the alkaline solution A, and stirring to obtain an alkaline solution B; (3) crystallizing, filtering, washing, drying and roasting the alkali liquor B to obtain a ZSM-5-MOR composite molecular sieve with nano ZSM-5 as a core and MOR on the outer surface as a shell; and (4) carrying out active metal modification on the ZSM-5-coated MOR composite molecular sieve according to an impregnation method to obtain the catalyst. According to the preparation method, the catalytic stability of the catalyst can be improved, and the alkylation performance of C5 and C6 alkanes is improved.

Provided is a method for preparing fuel of cracking furnace that includes: preparing a first methane off-gas stream derived from a liquid cracking furnace and a second methane off-gas stream derived from a gaseous cracking furnace, diverging a portion of the first methane off-gas stream into a methane off-gas export stream and obtaining a first fuel gas stream from the rest of the stream, obtaining a second fuel gas stream from the second methane off-gas stream, mixing the first and second fuel gas streams to prepare a mixed fuel gas stream, and mixing a hydrogen gas stream with the mixed fuel gas stream.

The invention relates to the technical field of organic chlorine treatment in reformate, in particular to a chlorine treatment agent and method for reformate and application. The chlorine treating agent is prepared by innovatively fusing various components such as a molecular sieve, zinc oxide, mesoporous silica and an MOFs material, supplementing with a titanium source and cerium source composite coating and carrying out mixing, molding, roasting and atomic layer deposition. The chlorine treatment agent can be used for dechlorinating reformate, solves the problems of poor organic chlorine removal performance and the like of the existing chlorine treatment agent, can effectively remove various organic chlorine and inorganic chlorine at the same time, has the advantages of high dechlorinating precision, large chlorine capacity, high active component utilization rate, good mechanical property and the like, prolongs the service life of the chlorine treatment agent, and meets the long-period operation requirement of a device.

A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and / or sorptive processes.

Catalysts and method of preparing the catalysts are disclosed. One of the catalysts includes a zeolite support, a Group VIII metal on the zeolite support, and at least two halides bound to the zeolite support, to the Group VIII metal, or to both, and can have an average crush strength greater than 11.25 lb based on at least two samples of pellets of the catalyst measured in accordance with ASTM D4179.

Processes for activating a high-chlorine content aromatization catalyst in a reactor system include the steps of contacting the aromatization catalyst with an inert gas stream in the reactor system at a drying temperature of 300-400° C. to form a treated catalyst, and then contacting the treated catalyst with a reducing gas stream in the reactor system to form an activated catalyst. Subsequently, a hydrocarbon feed can be contacted with the activated catalyst under reforming conditions in the reactor system to produce an aromatic product.

A novel synthetic crystalline molecular sieve material, designated boron ITQ-21, is provided. The boron ITQ-21 can be synthesized using an N,N-diethyl-5,8-dimethyl-2-azonium bicyclo [3.2.2] nonane cation as a structure directing agent. The boron ITQ-21 may be used in organic compound conversion reactions and / or sorptive processes.

This invention discloses a method for microwave-catalyzed dehydrogenation of naphtha to produce aromatics, specifically comprising the following steps: Step 1, oxidizing and etching the surfaces of four different diameter carbon fibers to obtain four modified carbon fibers; Step 2, preparing four platinum-carbon fibers of different diameters based on the four modified carbon fibers obtained in Step 1; Step 3, preparing a gradient-pore structured platinum-carbon fiber paper based on the four different diameter platinum-carbon fibers obtained in Step 2; Step 4, using the gradient-pore structured platinum-carbon fiber paper obtained in Step 3 to catalyze the dehydrogenation of naphtha to obtain aromatics. This invention uses microwave-assisted catalysis to lower the reaction temperature, achieving localized catalytic heating to reduce side reactions, and also achieves high dehydrogenation efficiency.

A catalyst composition including a metal oxide catalyst having a surface containing M-O site pairs of the acid-base Lewis type and of balanced acid-base strength; and a cracking component. The catalyst composition as disclosed herein is used in treating a variety of feeds including, but not limited to, naphtha, pyrolysis oil, polyolefins, or a combination thereof. The bifunctional catalytic nature of the catalyst composition enables catalytic cracking as well as hydrogenation and dehydrogenation reaction for the conversion of long-chain alkanes to mixture of short chain alkanes and alkenes using a catalyst composition based on metal-oxides that avoids the use of precious metals.

Provided is a method for preparing synthesis gas, and more particularly, a method for preparing synthesis gas including: supplying a cracked gas stream discharged from a cracking furnace of a naphtha cracking center (NCC) process to a gasoline fractionator, separating a side discharge stream from the gasoline fractionator using a first stripper, and separating a lower discharge stream from the gasoline fractionator using a second stripper, wherein a mixed oil stream of a PGO stream and a PFO stream formed by controlling a flow rate of each stream are used.

The application discloses a preparation method and application of a catalyst for removing trace olefins in reforming oil, and the preparation method comprises the following steps: (1) uniformly mixing Y type molecular sieve, SAPO-34 molecular sieve, a pore expanding agent and a slip agent into mixed powder; (2) adjusting alumina into glue with an inorganic acid solution, mixing the mixed powder in the step (1) into the glue to uniformly mix and knead, then shaping, drying and calcining to obtain a shaped catalyst; and (3) obtaining a finished catalyst by performing hydrothermal treatment and microwave treatment on the shaped catalyst. The catalyst prepared by the application has the advantages of low price, simple and efficient catalytic reaction system, good stability, mild reaction condition, a bromine index of product below 300 mgBr / 100g after 72h of reaction, small aromatic hydrocarbon loss rate, and little change in the amount of toluene components at the inlet and outlet. The catalyst performance meets the requirement of removing olefins from reforming oil.

Processes for activating a high-chlorine content aromatization catalyst in a reactor system include the steps of contacting the aromatization catalyst with an inert gas stream in the reactor system at a drying temperature of 300-400° C. to form a treated catalyst, and then contacting the treated catalyst with a reducing gas stream in the reactor system to form an activated catalyst. Subsequently, a hydrocarbon feed can be contacted with the activated catalyst under reforming conditions in the reactor system to produce an aromatic product.

Processes for activating a high-chlorine content aromatization catalyst in a reactor system include the steps of contacting the aromatization catalyst with an inert gas stream in the reactor system at a drying temperature of 300-400 °C to form a treated catalyst, and then contacting the treated catalyst with a reducing gas stream in the reactor system to form an activated catalyst. Subsequently, a hydrocarbon feed can be contacted with the activated catalyst under reforming conditions in the reactor system to produce an aromatic product.

A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and / or sorptive processes.

The present invention belongs to the technical field of hydrocarbon oil hydrogenation. Disclosed are a hydrogenation method and a hydrogenation system for a hydrocarbon oil. The method comprises the following steps: (1) subjecting a hydrocarbon oil raw material to a first hydrocracking reaction in the presence of hydrogen, so as to obtain a first hydrocracking reaction product, wherein in the first hydrocracking reaction product, the mass content of a C7+ n-alkane is 5% or below; (2) subjecting the first hydrocracking reaction product to a second hydrocracking reaction in the presence of hydrogen, so as to obtain a second hydrocracking reaction product; and (3) separating and fractionating the second hydrocracking reaction product. By taking a hydrocarbon oil as a raw material, the method can greatly improve the yield and quality of chemical raw materials (including a low-carbon olefin raw material and a reforming raw material).

The present invention provides a continuous reforming catalyst, a preparation method, and an application thereof. The preparation method of the continuous reforming catalyst comprises: preparing a Sn-containing alumina carrier molding; calcining the molding in an oxygen-free atmosphere to obtain an alumina carrier; impregnating the alumina carrier with an impregnation liquid, wherein the impregnation liquid comprises a Pt-containing compound, a K-containing compound, and a competitive adsorbent to obtain an impregnated alumina carrier; and drying, activating, and reducing the impregnated alumina carrier to obtain a continuous reforming catalyst. The continuous reforming catalyst of the present invention is prepared by the preparation method. The present invention also provides the application of the continuous reforming catalyst in the continuous reforming of naphtha to produce high-octane gasoline blending components or aromatics. The platinum atoms in the continuous reforming catalyst of the present invention have a strong interaction with the carrier, which can meet the high-rigidity reaction process requirements of catalytic reforming.

The present invention discloses a method for preparing high-octane gasoline. The method uses methanol and naphtha as raw materials. The raw materials are contacted with an aromatization catalyst in a moving bed reactor for reaction. The reacted materials are separated to obtain high-octane gasoline. The catalyst is discharged from the bottom of the moving bed reactor and recycled back to the moving bed reactor directly or after regeneration. The method can improve the liquid yield of gasoline and the service life of the catalyst, and can continuously produce high-octane gasoline.

The invention provides a novel synthetic crystal molecular sieve material which is named as boron ITQ-21. The boron ITQ-21 may be synthesized using a N, N-diethyl-5, 8-dimethyl-2-azoniumbicyclo [3.2. 2] nonane cation as a structure directing agent, and a method for synthesizing the boron ITQ-21 using the N, N-diethyl-5, 8-dimethyl-2-azoniumbicyclo [3.2. 2] nonane cation. The boron ITQ-21 may be used in organic compound conversion reactions and / or adsorption processes.

The invention provides a preparation method and application of a naphtha catalytic reforming catalyst, and the preparation method comprises the following steps: (1) modifying a Y molecular sieve with an alkali metal alcohol solution or an alkaline earth metal alcohol solution to obtain an alkali metal or alkaline earth metal modified non-acidic Y molecular sieve; (2) putting the molecular sieve prepared in the step (1) into a mixed solution of SnCl4 and acetone, stirring, drying and roasting to obtain a Sn-modified non-acidic Y molecular sieve; and (3) carrying out Pt loading on the Sn-modified non-acidic Y molecular sieve prepared in the step (2) by using a Pt source, and then carrying out reduction treatment to obtain the Pt-based catalyst with uniformly distributed Pt particles. According to the invention, a non-acidic molecular sieve is used as a carrier, and a Pt-based catalyst is prepared by optimizing a Pt loading mode and adjusting catalyst reduction conditions. The prepared Pt-based catalyst shows excellent reaction activity and aromatic hydrocarbon selectivity in aromatization of C6-C10 alkanes.

To provide a process for preparing molecular sieves of framework structure MEI, TON, MRE, MWW, MFS, MOR, FAU, EMT, or MSE.SOLUTION: The process includes preparing a synthesis mixture for molecular sieves, wherein the synthesis mixture includes a morphology modifier L selected from the group consisting of cationic surfactants having a quaternary ammonium group comprising at least one hydrocarbyl group having at least 12 carbon atoms, nonionic surfactants, anionic surfactants, sugars and combinations thereof.SELECTED DRAWING: Figure 1