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WO/2021/071815A1 |
Systems and processes disclosed may be used to produce a high purity isobutane stream and a high purity 1 -butene stream from mixed C4 streams having disparate starting compositions.
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WO/2021/061780A1 |
A hydrocarbon stabilization apparatus is described herein. The hydrocarbon stabilization apparatus comprises a vessel, a heat source deployed inside the vessel, and a surface area structure located inside the vessel. The surface area str...
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WO/2021/057992A1 |
Provided is a method for producing p-xylene and ethylbenzene from a C8 aromatic hydrocarbon containing ethylbenzene, comprising: sending a C8 aromatic containing ethylbenzene to an ethylbenzene liquid phase adsorption separation apparatu...
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WO/2021/054607A1 |
The present invention relates to a method for decomposing a phenolic by-product and, more specifically, to a method for decomposing a phenolic by-product comprising the steps of: (S10) mixing a mixed by-product stream of a bisphenol-A by...
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WO/2021/054608A1 |
The present invention relates to a method for decomposing phenolic by-products and, more specifically, provides a method for decomposing phenolic by-products, the method comprising the steps of: supplying a phenolic by-product stream to ...
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WO/2021/048657A1 |
Systems and methods for recovering cyclopentadiene and/or isoprene from a mixture comprising C5 hydrocarbons are disclosed. A C5 mixture comprising cyclopentadiene and/or isoprene is flowed into a dimerization unit to form dimers. The di...
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WO/2021/048655A1 |
Systems and methods for producing 1,3 -butadiene from a C4 hydrocarbon mixture are disclosed. The C4 hydrocarbon mixture comprising 1,3 -butadiene, C4 acetylenes, and other C4 hydrocarbons is processed in an extractive distillation colum...
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WO/2021/043560A1 |
The present invention relates to a process of preparing alcohols with at least two C atoms by catalytic reaction of syngas to a mixture that contains alkanes, alkenes and alcohols, alkenes contained in said mixture being reacted to the c...
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WO/2021/043452A1 |
The present invention relates to a method for processing a gaseous composition which has been obtained by catalytic reaction of synthesis gas, wherein this composition contains at least alkenes, optionally alcohols and optionally alkanes...
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WO/2021/041049A1 |
A hydrocarbon separation system comprises a MOF of M2(4,6-dioxido-l,3- enzenedicarboxyiate(m-dobdc)), 1 -butene and 2-butene, wherein the M2 is Co2 or Ni2, and the -butene is selectively adsorbed to the MOF over the 2 -butene.
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WO/2021/039273A1 |
Provided is a method for recovering, by pressure swing adsorption, unreacted olefins from a stream of a chemical reaction process in which an olefin is used as a material, the method enables desorption of gas at a relatively high desorpt...
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WO/2021/033972A1 |
The present invention relates to a process for producing oligomers. Provided are a process and an apparatus for producing oligomers, the process comprising the steps of: supplying a feed stream containing monomers to a reactor so as to c...
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WO/2021/033957A1 |
The present invention relates to a method for preparing an alpha olefin, the method comprising the steps of: supplying a feed stream containing a gas-phase ethylene monomer to a monomer dissolving device to dissolve same in a solvent pro...
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WO/2021/033993A1 |
The present invention relates to an oligomer preparation method, and provides an oligomer preparation method and preparation apparatus, the preparation method comprising the steps of: supplying, to a reactor, a feed stream comprising mon...
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WO/2021/033971A1 |
The present invention relates to an oligomer preparation method and provides an oligomer preparation method and preparation device, the oligomer preparation method comprising the steps of: carrying out an oligomerization reaction by supp...
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WO/2021/029981A1 |
Selective removal of non-aromatic hydrocarbons from a xylene isomerization process for para-xylene production is accomplished using a membrane unit positioned within a xylene recovery loop. The membrane unit may include a one-stage or mu...
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WO/2021/029377A1 |
The present invention provides: a propylene tetramer which is able to be used as a starting material for various olefin derivatives each having a high degree of branching; and a method for producing a propylene tetramer. A propylene te...
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WO/2021/022550A1 |
The polymerization-inhibiting composition comprising or consisting of pyrocatechol (PC) and hydroquinone (HQ), and optionally phenothiazine (PTZ), wherein the weight ratio of PC: HQ is in the range of (0.3-3):1, preferably (0.4-1.6):1. T...
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WO/2021/021394A1 |
A method for reducing fouling in an upgrading reactor that includes upgrading C2 to C4 hydrocarbons within the upgrading reactor in the presence of a fouling inhibitor having a particle size D50 of less than 100 μm and forming linear al...
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WO/2021/015541A1 |
Provided is a method of recovering unreacted ethylene in an ethylene oligomerization process and reusing the ethylene as a raw material, and more particularly, to a method of recovering unreacted ethylene with an increased recovery rate ...
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WO/2021/015898A1 |
Alkyl-demethylation of C2+-hydrocarbyl substituted aromatic hydrocarbons can be utilized to treat one or more of a heavy naphtha reformate stream, a hydrotreated SCN stream, a C8 aromatic hydrocarbon isomerization feed stream, a C9+ arom...
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WO/2021/015901A1 |
Alkyl-demethylation of C2+-hydrocarbyl substituted aromatic hydrocarbons can be utilized to treat one or more of a heavy naphtha reformate stream, a hydrotreated SCN stream, a C8 aromatic hydrocarbon isomerization feed stream, a C9+ arom...
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WO/2021/015900A1 |
Alkyl-demethylation of C2+-hydrocarbyl substituted aromatic hydrocarbons can be utilized to treat one or more of a heavy naphtha reformate stream, a hydrotreated SCN stream, a C8 aromatic hydrocarbon isomerization feed stream, a C9+ arom...
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WO/2021/015945A1 |
An integrated process for maximizing recovery of aromatics is provided. The process comprises passing at least a portion of a xylene column bottoms stream to a heavy aromatics column to provide a heavy aromatics column bottoms stream com...
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WO/2021/006252A1 |
In this 1,3-butadiene manufacturing method, an ethanol supply source material is vaporized with a vaporizer (104), the result is supplied to two or more parallel first reactors (108) and the ethanol is converted to acetaldehyde in the pr...
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WO/2021/006250A1 |
In this 1,3-butadiene manufacturing method, an ethanol feedstock is vaporized in a vaporizer (104), ethanol is supplied to two or more parallel first reactors (108) and converted to acetaldehyde in the presence of a first catalyst, the g...
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WO/2021/005693A1 |
Provided is an absorption agent that uses a nanoparticle adsorption agent having a special functional porous silica base, removes undesirable sulfur hydrocarbon compounds, and is used at room temperature and ambient pressure. This adsorp...
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WO/2020/236089A3 |
The present invention relates to an olefins-paraffins separation process in feed stream containing hydrocarbons with 2 to 4 carbon atoms by facilitated transport membrane specific to olefins, comprising the following step: a. feeding the...
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WO/2020/263544A1 |
A method for operating an integrated system for producing olefins may include contacting a hydrogenation feed with a first hydrogenation catalyst to produce a hydrogenated effluent, the hydrogenation feed including at least a portion of ...
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WO/2020/263545A1 |
A method for operating an acetylene hydrogenation unit in an integrated steam cracking-fluidized catalytic dehydrogenation (FCDh) system may include separating a cracked gas from a steam cracking system and an FCDh effluent from an FCDh ...
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WO/2020/259595A1 |
The present invention provides a composite layer coalescing adsorbent, comprising an outer adsorbent layer containing a low silicon X molecular sieve and an inner adsorbent layer containing a high silicon X molecular sieve, the molar rat...
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WO/2020/263546A1 |
A method for operating an acetylene hydrogenation unit of a steam cracking system that integrates a fluidized catalytic dehydrogenation (FCDh) effluent from a fluidized catalytic dehydrogenation (FCDh) system may include separating a cra...
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WO/2020/244639A1 |
Disclosed is an oil and gas processing method, which can achieve high-efficient separation and recovery of gasoline components and C2, C3 and C4 components. Light hydrocarbon components is first separated from gasoline components, and th...
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WO/2020/246949A1 |
The invention relates to an improved method for separating 1,3-butadiene from a mixed hydrocarbon flow, more specifically to the production of 1,3-butadiene by extractive distillation with a selective solvent, with integration of post-ex...
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WO/2020/240347A1 |
Systems and methods for producing butadiene are disclosed. In a reaction unit, n-butane is dehydrogenated in the presence of a double-dehydrogenation catalyst to produce a mixture that includes butadiene and unreacted n-butane. An extrac...
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WO/2020/242924A1 |
A recycle content ethylene is fed to a reactor to make propionaldehyde having recycle content. The recycle ethylene feedstock is derived directly or indirectly from the cracking of recycle content pyrolysis oil. The cracking of the pyrol...
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WO/2020/243064A1 |
Systems and processes are provided to prevent light ends such as methane, ethylene and ethane from building up in an olefin/paraffin separation system that uses a combination of a membrane and distillation column for this separation. In ...
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WO/2020/236898A1 |
The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3l) and trifluoroacetyl chloride (CF3COCI), and a method of forming an azeotrope or azeotrope-like composition comprising the step...
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WO/2020/231671A1 |
Processes for recovering para-xylene from a para-xylene separation zone that receives two or more feed streams with different para-xylene amounts. One of the feed streams may have an equilibrium amount while the second may have a high am...
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WO/2020/231672A1 |
Processes and apparatuses for para-xylene separation. A stream of para-xylene is separated from a toluene stream in a fractionation column. An overhead stream of the fractionation column is compressed and then passed to a heat recovery z...
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WO/2020/223166A1 |
Methods of improving the selectivity of selective hydrogenation of residual 1,3-butadiene in a C4 fraction of a hydrocarbon raffinate stream in a fixed-bed reactor are described. The methods may include co-feeding a competitive chemical ...
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WO/2020/222168A1 |
Described herein is a base oil synthesis via ionic catalyst oligomerization further utilizing a hydrophobic process for removing an ionic catalyst from a reaction mixture with a silica gel composition, specifically a reaction mixture com...
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WO/2020/217197A1 |
The present invention relates to the adsorbent for separating organochloride compound from liquid hydrocarbon and a process thereof, wherein said adsorbent is the silica and aluminosilicate composite having infiltrate structure subjected...
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WO/2020/211572A1 |
The present invention relates to a method for preparing 2-alkyl anthracene, comprising the following step: separating 2-alkyl anthracene from a reaction product of an anthracene alkylation reaction, the anthracene alkylation reaction bei...
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WO/2020/202023A1 |
The treatment plant (10) comprises: a reactor (12) for the sublimation of organic material in order to obtain a syngas (GR); a filtration assembly (14) for filtering the syngas (GR) in order to obtain a filtered gas (GF), and a motor- ge...
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WO/2020/192204A1 |
Disclosed is a method for removing carbon dioxide from a reaction gas, comprising: S1. performing heat treatment by conducting heat exchange between the reaction gas and a washing water, and obtaining a gas stream III; S2. removing carbo...
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WO/2020/196110A1 |
A separation method that includes a separation step in which a zeolite membrane composite is used to separate a branched diolefin from a branched hydrocarbon mixture that includes the branched diolefin and at least one type of branched h...
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WO/2020/196176A1 |
Provided is a zeolite membrane composite comprising a porous support and a zeolite membrane formed on at least one surface of the porous support. The zeolite membrane of the zeolite membrane composite comprises X-MOR-type zeolite, where ...
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WO/2020/187572A1 |
The invention relates to a method (100) for producing one or more olefins, in which a reaction mixture is formed, containing oxygen and one or more paraffins, and in which a portion of the oxygen in the reaction mixture is reacted with a...
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WO/2020/189738A1 |
A method for producing dicyclopentadiene and isoprene, the method including: a separation step for obtaining, from a raw material mixture that contains a normal form and an iso form of a C5 hydrocarbon, a first mixture that contains the ...
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