64results about "Treatment with polymerisation" patented technology

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.

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 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.

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.

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 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).

The invention provides a preparation method of bio-based olefin and bio-based polyolefin. Compared with a bio-based ethanol method or a biolipid method, the preparation method comprises the following steps: taking easily available low-cost biomass as a raw material, preparing bio-based synthesis gas through a gasification method, and then preparing bio-based olefin and bio-based polyolefin through a catalytic conversion reaction, purification and a catalytic reaction. According to the preparation method, carbon neutralization of polyolefin can be achieved, the preparation method has feasibility, the biomass raw materials are wide in source and extremely low in cost, and large-scale preparation is easier to achieve. The performance of the bio-based polyolefin prepared by the method provided by the invention is equivalent to that of coal-based polyolefin or petroleum-based polyolefin.

Disclosed is oligomerization of ethylene to form 1-hexene in combination with aromatization of the 1-hexene formed by oligomerization, to form benzene.

The invention discloses road asphalt and a synthesis method thereof. The synthesis method of the road asphalt comprises the following steps: (1) fractionating catalytic slurry oil to obtain four components, namely a light component, a middle component, a heavy component and kettle residues; (2) respectively contacting the light component and the heavy component separated in the step (1) with a catalyst to react to obtain a product I and a product II, and mixing the medium component separated in the step (1) with a cross-linking agent to react to obtain a product III; the kettle residues in the step (1) and oxygen-containing gas are mixed for a reaction, and a product IV is obtained; and (3) blending all products obtained in the step (2) to obtain the road asphalt. According to the preparation method provided by the invention, the oil slurry resource which is relatively low in additional value and rich in resource is utilized, the components of the catalytic oil slurry are subjected to catalytic reaction, and a specific compound is matched for modulation, so that the road asphalt material meeting the road petroleum asphalt A-grade technical requirements is obtained.

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 hydrotreatment of a pyrolysis oil produced from a waste plastics feedstock; (b) optionally providing a hydrocarbon stream B; (c) supplying a feed C comprising a fraction of the hydrocarbon stream A and optionally 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. A further advantage of the process of the present invention is that the overall energy consumption towards polypropylene is reduced.

A process for dimerizing and oligomerizing olefins to produce a distillate fuel, the process managing the heat of dimerization by diluting with a paraffin that is inert in the dimerization. The olefin stream can be split and fed to a plurality of dimerization reactors to further reduce the heat generated. The ethylene feed may be cooled before entering the dimerization reactor. The paraffin can be obtained from the saturated oligomerization effluent.

The present disclosure provides a process scheme for enhancing the petrochemical feedstock through the routing of oligomer products obtained after C4 oligomerization to fluid catalytic cracking unit. More particularly, the present disclosure relates to a process and a system for integrating oligomerization of C4 hydrocarbon components and fluid catalytic cracking for enhancing the recovery of C3+ hydrocarbon components from FCC off-gases.

A process for oligomerizing olefins into distillate fuels, in which a recycle olefin stream is oligomerized with a feed olefin stream in a first-stage oligomerization reactor. The first-stage oligomerized product is oligomerized in a second-stage oligomerization reactor to provide a second-stage oligomerized stream. The second-stage oligomerized stream is hydrogenated to produce fuel. A stripping column is used to prepare a hydrogenated fuel stream for fractionation.

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 hydrotreatment of a pyrolysis oil produced from a waste plastics feedstock; (b) optionally providing a hydrocarbon stream B; (c) supplying a feed C comprising a fraction of the hydrocarbon stream A and optionally 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. A further advantage of the process of the present invention is that the overall energy consumption towards polypropylene is reduced.

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

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 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.

A process for oligomerizing olefins to distillate fuels which oligomerizes a recycle olefin stream with a charge olefin stream in a first-stage oligomerization reactor. The first-stage oligomerate is oligomerized in a second-stage oligomerzation reactor to provide a second-stage oligomerate stream. A recycle olefin stream is taken from said second-stage oligomerate stream.