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WO/2023/052624A1 |
The invention relates to a method for separating all or some of the compounds from a biogas in the liquid state or in the two-phase liquid/vapour state containing methane, CO2 and optionally a hydrocarbon or a mixture of hydrocarbons fro...
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WO/2023/049994A1 |
A method for upgrading biogas comprising methane and nitrogen, where the biogas is provided in at least one pressurized vessel at a pressure of at least 65 atm (6586 kPa). The method includes a pressure swing adsorption (PSA) cycle havin...
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WO/2023/044278A1 |
Advantaged separation of xylene isomers may be realized by separating o-xylene and other components, such as styrene, from an aromatic hydrocarbon mixture comprising m-xylene and p-xylene. Separation of xylene isomers may comprise: provi...
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WO/2023/041862A1 |
The invention relates to a method for purifying a feedstock resulting from a method for depolymerising styrene compounds, referred to as purification method feedstock, comprising at least one step of separation which produces an extract ...
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WO/2023/040641A1 |
An acylation solution and a process method for continuously synthesizing acyl naphthalene using an acylation solution, belonging to the technical field of chemical synthesis. The process method comprises: configuring an acylation solutio...
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WO/2023/041455A1 |
A process for producing isopentane and isoamylene can comprise passing a feed stream comprising C5 hydrocarbons through a hydrodesulfurization assembly to produce a first stream; passing the first stream to a first separation assembly to...
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WO/2023/038266A1 |
The present invention relates to a monomer composition for synthesizing recycled plastic, a method for preparing same, recycled plastic using same, and a molded product, the monomer composition containing a high-purity aromatic diol comp...
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WO/2023/038270A1 |
The present invention relates to a monomer composition for synthesizing a recycled plastic, a method for manufacturing same, a recycled plastic using same, and a molded product, the monomer composition containing a high-purity aromatic d...
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WO/2023/038114A1 |
Provided are organic nanocrystals that are isolated and dispersed and that have high crystallinity. The organic nanocrystals according to one mode of the present disclosure are formed from an organic compound having π-electron conjugati...
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WO/2023/038269A1 |
The present invention relates to a monomer composition for synthesizing a recycled plastic, a method for preparing same, a recycled plastic using same, and a molded product, wherein the monomer composition contains a high-purity aromatic...
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WO/2023/038268A1 |
The present invention relates to a monomer composition for synthesizing a recycled plastic, a method for manufacturing same, a recycled plastic using same, and a molded product, the monomer composition containing a high-purity aromatic d...
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WO/2023/038267A1 |
The present invention relates to: a monomer composition for synthesis of recycled plastic containing a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin; a method for ...
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WO/2023/038271A1 |
The present invention relates to: a monomer composition for synthesizing a recycled plastic, comprising an aromatic diol compound and having a color coordinate b* of 0.1-1; a preparation method therefor; and a recycled plastic and a mold...
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WO/2023/031733A1 |
A method and a system for converting ethane to ethylene are provided. An exemplary method includes providing a feed stream including the ethane and oxygen to an oxidative dehydrogenation reactor and converting at least a portion of the e...
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WO/2023/021593A1 |
Provided are: a method for producing a plant-derived solid paraffin, by which production costs can be reduced; and a plant-derived solid paraffin. After adding alcohol to a plant oil to obtain a fatty acid ester, a solid paraffin is obta...
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WO/2023/019773A1 |
The present utility model discloses a cryogenic alkylation refrigeration system, which comprises a fresh C4 feed cooler (E1), a fresh C4 feed refrigeration unit (B1), a reactor (R1), a refrigeration compressor (C1), an air cooler (E2), a...
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WO/2023/020044A1 |
A method for reducing the risk of burning and explosion in a deoxygenation process of an oxygen-containing gas. The method comprises: in the presence of a gaseous alkane, mixing an oxygen-containing gas from which an unsaturated hydrocar...
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WO/2023/023280A1 |
Described are membranes for separating olefins from a mixture that includes olefins and non-olefins. The membrane includes polymers and metal ions associated with the polymers. The metal ions mediate the transport of the olefins through ...
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WO/2023/022847A1 |
A salt ion membrane may be paired with an absorption device to provide advantaged separation processes comprising: introducing a first aqueous salt stream and a mixed feed stream comprising at least one olefin and at least one paraffin t...
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WO/2023/021350A1 |
A feed stream including ethane is flowed to a purification unit that includes a first oxidative dehydrogenation catalyst. The feed stream is contacted with the first oxidative dehydrogenation catalyst at a first temperature to reduce a c...
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WO/2023/009619A1 |
Disclosed herein are embodiments of a method and system for converting ethanol to para-xylene. The method also provides a pathway to produce terephthalic acid from biomass-based feedstocks. In some embodiments, the disclosed method produ...
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WO/2023/003029A1 |
[Problem] To improve energy efficiency in a carbon dioxide recovery system. [Solution] A carbon dioxide recovery system 1 includes: an electrolytic reduction device 2 that produces a produced gas by the electrolytic reduction of carbon d...
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WO/2023/002704A1 |
In the present invention, overall costs are reduced, including plant construction costs and raw material and energy costs, and the quantity of carbon dioxide emitted is reduced. The present invention is a method for producing an aromatic...
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WO/2023/285090A1 |
An ethylene recycle method may include: obtaining an overheads stream comprising ethylene in a first gaseous state from an ethylene purification column; heating the overheads stream in a first heat exchanger to produce a heated overheads...
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WO/2023/284903A1 |
The present invention provides a process for the separation of propene from propane through the use of zeolite having PCR structure. The separation process employing adsorbent of the present invention can be used in variety of petrochemi...
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WO/2022/126082A9 |
A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series...
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WO/2023/275787A1 |
The present invention relates to a zirconium-based metal organic framework comprising at least a tetravalent zirconium ion (Zr4+) and a bidentate or tridentate linking ligand bonding the said tetravalent zirconium ion (Zr4+). Moreover, t...
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WO/2022/075336A9 |
[Problem] There is demand for devices that synthesize methane from hydrogen and carbon dioxide gas but can remove reaction heat and further reduce the progress and temperature of the reaction to improve percent conversion to methane. [So...
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WO/2022/250886A1 |
Methods for recycling ethylene from a reaction zone effluent stream from an oligomerization reaction zone, in which the reaction zone effluent stream contains an oligomer product effluent having at least 20 mass % octene(s), include a st...
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WO/2022/234115A1 |
The present disclosure relates to a process, a process plant and equipment for conversion of a feedstock rich in oxygenates to a hydrocarbon comprising the steps of directing said feedstock in combination with a recycle gas stream to a h...
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WO/2022/232393A1 |
Disclosed herein are compositions and methods for the selective photocatalytic reduction of an alkyne compound to an alkene compound (e.g., acetylene to ethylene).
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WO/2022/220634A1 |
The present invention relates to a method for recovering styrene monomers from waste polystyrene, and more specifically, to a method for recovering styrene monomers from waste polystyrene, wherein the waste polystyrene is depolymerized u...
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WO/2022/213370A1 |
An alkyne selective hydrogenation catalyst. The catalyst carrier is alumina or mainly alumina and has a bimodal pore distribution structure, and the specific surface area of the catalyst is 20-50 m2/g, wherein the pore diameter of small ...
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WO/2022/214644A1 |
The present invention relates to a process for recovering propylene from a gaseous stream comprising propylene and a light-boiling compound, the light-boiling compound having a boiling point at 1013 mbar(abs.) below - 50 °C, in a conden...
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WO/2022/213123A1 |
A process and apparatus integrate a deethanizer column with a cryogenic heat exchanger by reboiling the deethanizer column with a refrigerant stream and/or cooling a deethanizer overhead line in the cryogenic heat exchanger. A single sta...
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WO/2022/213124A1 |
A process and apparatus reboil a propylene splitter bottoms by heat exchange and/or a deethanizer bottoms stream with a compressed propylene splitter overhead stream. Use of single splitter compressor and operation of the propane-propyle...
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WO/2022/208416A1 |
The present invention is directed to metallocene catalyzed oligomerization of olefin feed stock without fractionation of alkane and olefin.
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WO/2022/205543A1 |
Disclosed are a monodisperse polymer containing a fluorene-butadiyne structure in the main chain, and a preparation method therefor and the use thereof. The monodisperse polymer has a structure, as shown in formula I, and is prepared by ...
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WO/2022/207418A1 |
The present invention relates to a process and a device for the treatment and separation of aromatic compounds from a gasoline feedstock, comprising the following stages/units: selective hydrogenation (A) of the gasoline feedstock (1) in...
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WO/2022/200119A1 |
The present invention relates to a simulated moving bed separation device and method, comprising a plurality of in-series adsorbers (1, 2) arranged alternately with upflow and downflow configuration, wherein each adsorber (1, 2) is divid...
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WO/2022/204563A1 |
A process for the separation of a natural gas stream is provided. The process includes receiving an effluent gas flow from a first fractionator operating at a first pressure, splitting the effluent gas flow into a first stream and a seco...
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WO/2022/189217A1 |
The invention relates to a process for starting up a plant for removing isobutene from an isobutene-containing C4-hydrocarbon mixture, the plant comprising an etherification unit containing moist acidic ion exchange resin, a first distil...
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WO/2022/189216A1 |
The invention relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture (1) in a plant comprising an etherification unit (3), a first distillation unit (5), an ether cleavage unit (8) and a second d...
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WO/2022/189219A1 |
The invention relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture (1) in a plant comprising an etherification unit (3), a first distillation unit (5), an ether cleavage unit (10) and a second ...
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WO/2022/189218A1 |
The invention relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture (1) in a plant comprising an etherification unit (3), a first distillation unit (5), an ether cleavage unit (8) and a second d...
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WO/2022/187320A1 |
Disclosed herein is a phosphorus modified UZM-35 zeolite, methods of its preparation, and methods of its use in hydrocarbon conversion processes, e.g., as part of a catalyst component and/or as part of a catalyst composition. Catalyst co...
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WO/2022/187815A1 |
A process increases the concentration of normal paraffins in a feed stream comprising separating a naphtha feed stream into a normal paraffin rich stream and a non-normal paraffin rich stream. A naphtha feed stream may be separated into ...
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WO/2022/187564A1 |
A method for the oxidation of ethylene to form ethylene oxide which comprises treating an aqueous stream in a cycle water treatment unit containing an anion exchange resin to reduce the content of the impurities.
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WO/2022/161869A1 |
The invention relates to a process for removing butenes from C4-hydrocarbon streams that contain butanes in addition to butenes, by extractive distillation with a suitable solvent. The process according to the invention is characterized ...
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WO/2022/161864A1 |
The invention relates to a method for separating butenes from C4 hydrocarbon streams containing butanes as well as butenes by means of extractive distillation with a suitable solvent. The method according to the invention is characterise...
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