137results about "Naphtha reforming" patented technology

A novel synthetic crystalline molecular sieve material called boron SSZ-121 is provided. Boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cation as a structure directing agent. Boron SSZ-121 can be used in organic compound conversion reactions and / or sorption processes.

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.

In some embodiments, a method of transporting hydrogen, may comprise: at a first hydrocarbon processing facility, hydrocracking a hydrocarbon feed to form a hydrocracked effluent, transporting the hydrocracked effluent, or a portion thereof, from the first hydrocarbon processing facility to a second hydrocarbon processing facility, and at the second hydrocarbon processing facility, dehydrogenating a portion of the hydrocracked effluent to form hydrogen gas. The first hydrocarbon processing facility and the second hydrocarbon processing facility may be at least 100 km apart from one another.

The present invention relates to the field of catalyst technology, and in particular to a naphtha cracking catalyst and a preparation method and application thereof. The preparation method comprises the following steps: a) spraying and molding a mixed solution of a seed, a carrier and a binder and calcining to obtain microspheres; the seed is an MFI structure molecular sieve; b) in-situ crystallizing the microspheres in an alkaline atmosphere to obtain crystallized microspheres; c) calcining the crystallized microspheres to obtain a naphtha cracking catalyst. In the present invention, in a solid phase system, the MFI structure molecular sieve is used as a seed, and in an alkaline atmosphere, a microsphere catalyst containing an active component of the MFI structure molecular sieve is prepared in situ. There is no separation, washing and other operations in the preparation process, no wastewater is generated, and the preparation process is green, clean and harmless. The prepared catalyst has a single composition and mainly contains silicon, aluminum and phosphorus elements. When used in a naphtha cracking reaction, the diene yield, especially the propylene yield, can be greatly improved, and the catalyst has excellent water and heat stability.

A method for producing liquid organic hydrogen carriers from plastic oil. The method includes passing a plastic oil stream and an input hydrogen stream to a hydrogenation unit to form a hydrotreated effluent stream and passing the hydrotreated effluent stream to a separator to isolate the liquid organic hydrogen carriers as an LOHC stream from the unreacted hydrogen and byproducts as a residual stream. The method further includes passing the residual stream to a reclamation unit to recover the unreacted hydrogen as a recovered hydrogen stream from the residual stream and passing the recovered hydrogen stream to the hydrogenation unit to offset hydrogen demand from the input hydrogen stream. The remainder of the residual stream upon recapture of the unreacted hydrogen generates a byproducts stream.

A method for transporting hydrogen may comprise, at a first hydrocarbon processing facility, passing a heavy naphtha stream, a C9+ aromatic compounds-containing stream, and an input hydrogen-containing stream to a hydrotreater to form a hydrotreated effluent stream; passing the hydrotreated effluent stream to a separation unit to form a naphthenics-containing stream and a separation unit effluent stream; transporting the naphthenic stream to a second hydrocarbon processing facility; and at the second hydrocarbon processing facility, passing at least a portion of the naphthenic stream to a dehydrogenation unit to form a hydrogen product stream. The first hydrocarbon processing facility and the second hydrocarbon processing facility may be separated by a distance of at least 100 km. Further disclosed herein are methods of processing hydrogen which produce aromatic compounds, including C9+ aromatic compounds containing streams.

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 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 method for producing liquid organic hydrogen carriers (LOHCs). The method includes passing a hydrocarbon feed stream rich in aromatics to a selective hydrogenation reactor configured to saturate olefins selectively without aromatic saturation to generate a hydrotreated feed stream; passing the hydrotreated feed stream to a fractionation unit to form a light fraction stream and a heavy fraction stream split at 218℃ to 250℃; and passing the light fraction stream to an aromatics extraction unit to form an aromatic compounds stream. The method also includes passing the non-aromatic compounds stream to a naphthene separator to generate a naphthenic stream; passing the aromatic compounds stream, the naphthenic stream, and an input hydrogen stream to a hydrogenation unit to form a hydrotreated effluent stream; and passing the hydrotreated effluent stream to a separator to remove unsaturated compounds to isolate the saturated compounds as a LOHC stream.

A steam pre-reforming catalyst comprising a) an inorganic oxide support selected from alumina, magnesium aluminate or a mixture thereof, b) a mixture of nickel, lanthanum and cerium oxides and c) plat

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.

The present invention relates generally to methods for producing renewable detergent compounds. More specifically, the invention relates to methods for producing detergent intermediates, including bio-linear alkylbenzene (LAB), bio-alcohols, and long chain bio-paraffins, from natural oils.

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 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.

A method for producing liquid organic hydrogen carriers from plastic oil. The method includes passing a plastic oil stream and an input hydrogen stream to a hydrogenation unit to form a hydrotreated effluent stream and passing the hydrotreated effluent stream to a separator to isolate the liquid organic hydrogen carriers as an LOHC stream from the unreacted hydrogen and byproducts as a residual stream. The method further includes passing the residual stream to a reclamation unit to recover the unreacted hydrogen as a recovered hydrogen stream from the residual stream and passing the recovered hydrogen stream to the hydrogenation unit to offset hydrogen demand from the input hydrogen stream. The remainder of the residual stream upon recapture of the unreacted hydrogen generates a byproducts stream.

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.

The vehicle rocker assembly (10) includes a sill outer panel (14) and a sill inner panel (12) to define an elongated hollow interior (16). The vehicle rocker assembly also includes a rocker insert (40) disposed within the hollow interior. The rocker insert includes a first stiffening member (41) having a top wall (80), a bottom wall (82), and a side wall (84). The rocker insert also includes a second stiffening member (42) including a plurality of wall sections, each of the wall sections including an upper portion that engages the top wall and a lower portion that engages the bottom wall at a location spaced along the length of the rocker insert from the upper portion. The top and bottom walls of the first stiffening member are configured to be supported by the second stiffening member upon an inboard lateral impact force to enhance the lateral bending strength of the rocker insert.