113results about "Treatment with polymerisation" patented technology

The invention relates to the technical field of petroleum processing, in particular to a method for simultaneously preparing a needle coke raw material and coated asphalt, a device for simultaneously preparing the needle coke raw material and the coated asphalt, needle coke and a lithium ion battery negative electrode material. The method comprises the following steps: (1) carrying out first distillation cutting on catalytic diesel oil to obtain a monocyclic aromatic hydrocarbon enriched component, a bicyclic aromatic hydrocarbon enriched component and a tricyclic aromatic hydrocarbon enriched component; (2) performing thermal polycondensation reaction on the bicyclic aromatic hydrocarbon enriched component to obtain pyrolysis gas and a thermal polycondensation product; (3) carrying out second distillation cutting on the thermal polycondensation product to obtain cracked light oil I, cracked light oil II, circulating oil and polycondensation heavy components; and (4) carrying out reduced pressure distillation cutting on the polycondensation heavy component to obtain polycondensation wax oil and polycondensation asphalt which are respectively used as a needle coke raw material and coated asphalt. According to the method, on one hand, the preparation process of the carbon material is enriched, and on the other hand, the resource utilization of the catalytic diesel oil is widened.

The invention relates to a method for preparing a gasoline component and an aviation fuel component through ethylene oligomerization, which comprises the following steps: contacting an ethylene-containing raw material with a first catalyst to carry out a first oligomerization reaction to obtain a first oligomerization product; the first catalyst comprises an FER structure molecular sieve; contacting the first oligomerization product with a second catalyst filled in the fixed bed reactor to carry out a second oligomerization reaction so as to obtain a second oligomerization product; the second catalyst is a molecular sieve catalyst and / or an amorphous silica-alumina catalyst; carrying out gas-liquid separation on the second oligomerization product to obtain a gas product and a liquid product, and carrying out distillation separation on the liquid product to obtain a C5-C9 fraction and a C9 + fraction; according to the method provided by the invention, the ethylene conversion rate is high, and the yield of C9 < + > fraction in the liquid product can be obviously improved.

A process for preparing an olefin stream for oligomerization includes fractionating the olefin stream to provide a light gas stream and an olefin-rich stream. Oxygenates are absorbed from the olefin-rich stream into a water wash stream to provide an oxygenate-rich water wash stream and a washed olefin stream. The washed olefin stream can then be oligomerized.

Methods for producing bio-olefins by fluidized catalytic cracking (FCC) may comprise introducing a feedstock comprising a C2-C4 bio-alcohol and a petroleum-based hydrocarbon feed into an FCC reactor containing a catalyst, wherein a concentration of the C2-C4 bio-alcohol in the feedstock is about 0.5 wt% to about 99.5 wt% and the C2-C4 bio-alcohol is introduced to a first reaction zone of the FCC reactor and the petroleum-based hydrocarbon feed is introduced to a second reaction zone of the FCC reactor, the first reaction zone being located spatially below the second reaction zone; dehydrating at least a portion of the C2-C4 bio-alcohol in the first reaction zone to produce a bio-olefin; cracking at least a portion of the petroleum-based hydrocarbon feed in the second reaction zone to produce a cracking product; and obtaining an FCC product comprising the bio-olefin and the cracking product.

A process for dimerizing and oligomerizing olefins to distillate fuels which subjects oligomerized product to hydrocracking and hydroisomerization in a single reactor to convert heavier oligomers to jet fuel range oligomers. A jet fuel product stream may be taken from a side of a stripping column which produces a heavy drag stream from a bottom of the stripping column to ensure an end point boiling specification is achieved.

The present invention relates to a process for manufacturing aliphatic C3−C5 aldehydes, aliphatic C9−C13 alcohols from plastic waste and chemical products based on aliphatic C3−C5 aldehydes and aliphatic C9−C13 alcohols from plastic waste. The process further comprises separating a steam cracker feedstock from a liquid stream comprising at least one pyrolysis oil which is preferably manufactured from plastic waste. The liquid stream is converted in a first hydroprocessing step, a stream depleted in organic compounds comprising C−C double bonds and / or C−C triple bonds is then separated from the hydroprocessed liquid stream and subjected to a second hydroprocessing step to produce a steam cracker feedstock stream from the hydroprocessed stream.

A process comprising (a) providing a feedstock that includes carbonaceous materials; (b) gasifying the feedstock to produce a gaseous stream including carbon monoxide, hydrogen, and carbon dioxide; (c) converting at least a portion of the carbon monoxide, hydrogen, and carbon dioxide to a mixture of alkanes; and (d) converting at least a portion of the mixture of alkanes to butadiene monomer.

Provided is a method for upgrading a bio-based material, the method including the steps of pre-treating bio-renewable oil(s) and / or fat(s) to provide a bio-based fresh feed material, hydrotreating the bio-based fresh feed material, followed by separation, to provide a bio-propane composition.

A continuous process for converting waste plastic to a regenerant for the polymerization of polyethylene is provided. The method includes selecting waste plastic containing polyethylene and / or polypropylene and preparing a blend of the biofeedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20% by weight of the blend. And introducing the blend into an FCC (Fluid Catalytic Cracking) device. A liquefied petroleum gas (LPG) olefin / paraffin mixture and naphtha are recovered from the FCC unit and can be forwarded to produce polyethylene.

A process for producing olefins from methanol over an MTO catalyst and oligomerizing the resulting olefin stream over an oligomerization catalyst to produce an oligomerized olefin stream. The oligomerization may include a first stage oligomerization of ethylene and / or propylene, followed by a second stage oligomerization of the first stage oligomerized olefin stream to higher olefins. The oligomerized olefin stream may be separated into a jet fuel stream and a diesel fuel stream.

A reactor, system, and method of converting methane non-oxidatively. A thermal catalytic reactor has a non-oxidative methane coupling (NMC) catalyst disposed on a first surface of a substrate. The NMC catalyst endothermically converts methane in a reaction zone on the catalyst side of the reactor to a product mixture. The reaction zone is heated by thermal conduction. The spatial temperature profile has a sharp increase and decrease that leads to selective control of the surface methane activation and gas phase reaction propagation. The reactor also has an inlet for introducing methane gas for contacting the NMC catalyst and an outlet for removing the product mixture. The heat source may generate the process heat chemically or electrically. Temperature profiles are controlled by zoning the combustion catalyst location or conductive heating element in the reactor.

This disclosure relates to the production of chemicals and plastics using pyrolysis oil from the pyrolysis of plastic waste as a co-feedstock along with a petroleum-based, fossil fuel-based, or bio-based feedstock. In an aspect, the polymers and chemicals produced according to this disclosure can be certified under International Sustainability and Carbon Certification (ISCC) provisions as circular polymers and chemicals at any point along complex chemical reaction pathways. The use of a mass balance approach which attributes the pounds of pyrolyzed plastic products derived from pyrolysis oil to any output stream of a given unit has been developed, which permits ISCC certification agency approval.

Provided is a continuous process for converting waste plastics into polypropylene for recycling. The process includes selecting waste plastics containing polyethylene and / or polypropylene and passing the waste plastics through a pyrolysis reactor to thermally decompose at least a portion of the polyolefin waste and produce a pyrolysis effluent. The pyrolysis effluent is separated into off-gas, a naphtha / diesel fraction, a heavy fraction, and a char. The pyrolysis oil and wax (including the naphtha / diesel fraction and the heavy fraction) are sent to a refinery FCC unit. A C3-C5 olefin / paraffin mixture of liquefied petroleum gas is recovered from the FCC unit and passed to a refinery alkylation unit. A propane fraction is recovered from the alkylation unit and passed to a dehydrogenation unit to produce propylene. The propylene is passed to a propylene polymerization reactor.

A process for dimerizing and oligomerizing an olefin into a distillate fuel manages the dimerization exotherm by diluting the olefin with a paraffin that is inert in the dimerization. The olefin stream can also be separated and fed to multiple dimerization reactors to further reduce the heat generated. The ethylene feed can also be cooled before entering the dimerization reactor. The paraffin is obtainable from a saturated oligomeric effluent.

The present invention relates to a process for the production of propylene-based polymers from waste plastics feedstocks comprising the steps in this order of: (a) providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock; (b) providing a hydrocarbon stream B; (c) supplying a feed C comprising a fraction of the hydrocarbon stream A and a fraction of the hydrocarbon stream B to a thermal cracker furnace comprising cracking coil(s); (d) performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D; (e) supplying the cracked hydrocarbon stream D to a separation unit; (f) performing a separation operation in the separation unit to obtain a product stream E comprising propylene; (g) supplying the product stream E to a polymerisation reactor; and (h) performing a polymerisation reaction in the polymerisation reactor to obtain an propylene-based polymer; wherein in step (d): • the coil outlet temperature is ≥ 800 and ≤ 850 °C, preferably ≥ 805 and ≤ 835 °C; and • the weight ratio of steam to feed C is > 0.3 and < 0.8. Such process allows for optimisation of the quantity of waste plastic material that finds its way back into a polypropylene that is produced as outcome of the process. The higher that quantity is, i.e. the higher the quantity of chemical building blocks that are present in the waste plastic material that are converted to the produced polypropylene, the better the sustainability footprint of the process is. The process allows for circular utilisation of plastics. In addition, the process allows for increased efficiency in the production of polypropylene in that the fraction of propylene in the cracked hydrocarbon stream D is increased.

The present disclosure provides a process to produce ethylene and hydrogen comprising: providing a first reactant mixture (15) comprising methane, oxygen; performing an Oxidative Coupling of Methane (OCM) reaction on the first reactant mixture (15) to produce a first product stream (17) comprising carbon monoxide, ethylene and hydrogen; providing a second reactant mixture (19); performing a steam cracking reaction on the second reactant mixture (19) to produce a second product stream 21 comprising ethylene and hydrogen; separating at least a part of the carbon monoxide; and performing a water gas shift reaction on the CO-rich stream 71 to produce an H2-rich stream 83; wherein the OCM reaction and the steam cracking reaction are performed simultaneously in separate chambers of a single reactor being a reactor 1, the reactor 1 is configured to transfer the heat generated by the OCM reaction to the steam cracking reaction.

The present invention describes a method to produce high purity hydrocarbon materials from renewable sources. The produced materials are chemically indistinguishable from highly refined mineral oils and / or synthetic hydrocarbons. These renewable hydrocarbon materials can be used as a drop-in replacement for mineral and synthetic hydrocarbon base oils, process fluids, white oils in products such as lubricants, rubber, personal care, pharma.

Provided is a continuous process for converting waste plastics into recycling for polyethylene polymerization. This process includes a step of selecting waste plastics containing polyethylene and / or polypropylene, and a step of preparing a blend of the biofeedstock and the selected plastics. The amount of plastic in the blend constitutes 20 wt% or less of the blend. The blend is passed through an FCC unit. Liquefied petroleum gas LPG olefin / paraffin mixture and naphtha are recovered from the FCC unit and can be used for the production of polyethylene.

The present invention relates to a method for simultaneously preparing a needle coke raw material and coating asphalt, a needle coke raw material and coating asphalt prepared by the method, needle coke prepared from the needle coke raw material, a lithium ion battery negative electrode material comprising the needle coke and / or the coating asphalt, and a device. The method comprises: (1) carrying out primary distillation cutting on catalytic diesel oil to obtain a bicyclic aromatic hydrocarbon enrichment component; (2) carrying out thermal polycondensation reaction on the bicyclic aromatic hydrocarbon enrichment component to obtain a thermal polycondensation product; (3) carrying out secondary distillation cutting on the thermal polycondensation product to obtain circulating oil and a polycondensation heavy component, wherein at least part of the circulating oil returns to step (2) for the thermal polycondensation reaction; and (4) carrying out reduced pressure distillation cutting on the polycondensation heavy component to obtain polycondensation wax oil serving as the needle coke raw material and polycondensation asphalt serving as the coating asphalt. The present invention improves the product yield, enriches the preparation process of a carbon material, and develops the reclamation of the catalytic diesel oil.

Provided is a continuous process for converting waste plastics for recycling for polyethylene polymerization or for linear alpha olefins. The process includes selecting waste plastics containing polyethylene and / or polypropylene and then passing the waste plastics through a pyrolysis reactor to thermally decompose at least a portion of the polyolefin waste and produce a pyrolysis effluent. The pyrolysis effluent is separated into off-gas, a naphtha / diesel fraction, a heavy fraction, and char. The naphtha / diesel fraction is passed to a crude refinery unit, from which a straight-run naphtha (C5-C8) fraction or a propane / butane (C3-C4) fraction is recovered. The straight-run naphtha fraction or the propane and butane (C3-C4) fraction is passed to a steam cracker for ethylene production. The ethylene is converted to linear alpha olefins and / or polyethylene. The heavy fraction from the pyrolysis reactor can also be combined with the heavy fraction of the linear alpha olefin stream recovered from the steam cracker. The combined heavy fraction and the heavy fraction of the normal alpha olefin stream may be passed through a wax hydrogenation zone to produce wax.

A process for dimerizing and oligomerizing olefins to distillate fuels in which the oligomerized product is subjected to hydrocracking and hydroisomerization in a single reactor to convert heavier oligomers to jet fuel range oligomers. A jet fuel product stream is removed from the side of a stripping tower and a heavy drag stream is produced from the bottom of the stripping tower to ensure that the end boiling point specification is met.

Provided is a continuous process for converting waste plastics into recycling for polypropylene polymerization. This process includes a step of selecting waste plastics containing polyethylene and / or polypropylene, and a step of preparing a blend of the biofeedstock and the selected plastics. The amount of plastic in the blend constitutes 20 wt% or less of the blend. The blend is passed through an FCC unit. A liquefied petroleum gas LPG olefin / paraffin mixture and naphtha are recovered from the FCC unit and can be used in the production of polypropylene.

A process for oligomerizing olefins into distillate fuels, wherein a recycle olefin stream is oligomerized with an input olefin stream in a first-stage oligomerization reactor, the first-stage oligomerization product is oligomerized in a second-stage oligomerization reactor to provide a second-stage oligomerization stream, and a recycle olefin stream is removed from the second-stage oligomerization stream.

A process for dimerizing and oligomerizing olefins to distillate fuels which manages the dimerization exotherm by diluting it with paraffins which are inert in the dimerization. The olefin stream can also be split and fed to multiple dimerization reactors to further reduce the heat generated. The ethylene feed can also be cooled before entering the dimerization reactor. The paraffins can be obtained from saturating oligomerized effluent.

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. In some aspects, recycled content aromatics (r-aromatics) from a hydrocarbon resin production facility 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 invention discloses a road asphalt material and a preparation method thereof. The preparation method of the road asphalt comprises the following steps: (1) fractionating catalytic slurry oil to obtain four components, namely a light component, a medium component, a heavy component and kettle residues; (2) respectively contacting the light component and the medium component separated in the step (1) with a solid strong acid catalyst for reaction to obtain a product I and a product II; mixing the heavy component in the step (1) with oxygen-containing gas for reaction to obtain a product III; and (3) mixing the kettle residue component in the step (1) with the product I, the product II and the product III obtained in the step (2) to obtain the road asphalt material. According to the preparation method of the road asphalt material provided by the invention, the obtained road asphalt material has outstanding comprehensive performance, meets the technical requirements of the existing road petroleum asphalt grade A, also makes the oil slurry resource fully and reasonably utilized while giving consideration to the performance of the road asphalt, and has relatively high resource utilization value.

Provided is a continuous process for converting waste plastics into recycling for the production of chemical substances. This process includes a step of selecting waste plastics containing polyethylene and / or polypropylene, and a step of preparing a stable blend of the biofeedstock and the selected plastics. The amount of plastic in the blend constitutes 20 wt% or less of the blend. The blend is passed through a conversion unit. Useful chemical substances including C3 and C4 olefins and aromatics are recovered.

The present invention relates to a process comprising the steps of: (a) providing a renewable cracker feed obtained by fractionating an isomeric hydrocarbon composition having an i-paraffin content of 85.0 wt.-% or more and a carbon number range of 20-32 into at least a low boiling fraction and a high boiling fraction, and providing at least a portion of the low boiling fraction or at least a portion of the high boiling fraction as renewable cracker feed, (b) pyrolyzing the renewable cracker feed in a pyrolysis furnace, optionally with co-feeds and / or additives, and (c) subjecting the pyrolysis furnace effluent of step (b) to a separation process to provide at least a light olefin fraction. The present invention further relates to a polymer composition obtained by using the olefins in the light olefin fraction.

The invention discloses a preparation method of a heavy aryl colloid cooling accelerant, and belongs to the technical field of metal material heat treatment, the method comprises the following steps: carrying out distillation cutting separation on a heavy aryl colloid coupling component to obtain a heavy aryl colloid coupling light component; and carrying out catalytic crosslinking condensation reaction on the heavy aryl colloid coupled light component, and carrying out deep decompression separation to obtain the heavy aryl colloid cooling accelerant. The special quenching oil with different quenching requirements can be blended by adopting the composite quenching oil additive bag and the base oil, and the use indexes such as the cooling speed characteristic of the synthesized special quenching oil exceed those of quenching oil blended by a commercially available imported cooling accelerant Kende-0834.

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. In some aspects, recycled content aromatics (r-aromatics) from a hydrocarbon resin production facility 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).