PROCESSES INTEGRATING HYDROCARBON CRACKING WITH METATHESIS FOR PRODUCING PROPENE

    公开(公告)号:US20230093607A1

    公开(公告)日:2023-03-23

    申请号:US17404379

    申请日:2021-08-17

    Abstract: Processes for producing olefins include passing a hydrocarbon feed to a hydrocarbon cracking unit that cracks the hydrocarbon feed to produce a cracker effluent, passing the cracker effluent to a cracker effluent separation system that separates the cracker effluent to produce at least a cracking C4 effluent including 1-butene, 1,3-butadiene, and isobutene, passing the cracking C4 effluent to an SHIU that contacts the cracking C4 effluent with hydrogen in the presence of a selective hydrogenation catalyst to produce a hydrogenation effluent having a 2-butenes concentration greater than or equal to the sum of the concentrations of 1-butene and isobutene. The processes include passing the hydrogenation effluent to a metathesis unit that contacts the hydrogenation effluent with a metathesis catalyst and a cracking catalyst downstream of the metathesis catalyst to produce a metathesis reaction effluent comprising at least propene.

    Integrated process with a deasphalting column for crude oil direct catalytic upgrading

    公开(公告)号:US11555156B2

    公开(公告)日:2023-01-17

    申请号:US17683513

    申请日:2022-03-01

    Abstract: A catalytic upgrading process includes introducing a feed comprising crude oil to a first catalytic deasphalting reactor to deasphalt the feed, thereby producing polymerized asphaltenes and deasphalted oil (DAO). The DAO is introduced to a steam cracking unit, thereby producing pyrolysis gas (PG), which is introduced into a selective hydrogenation unit, thereby producing an olefin-free product, which can then be introduced to a separation unit. The resulting benzene-toluene-xylenes (BTX)-containing stream and liquid petroleum gas (LPG) are separated, and the BTX-containing stream is introduced to a BTX complex to produce refined BTX. After deasphalting, a wash solvent may be introduced into the first catalytic deasphalting reactor to remove the polymerized asphaltenes, regenerate the catalyst, and produce a mixture comprising the wash solvent and the polymerized asphaltenes. The wash solvent is separated from the polymerized asphaltenes.

    TWO STAGE CATALYTIC PROCESS FOR PYROLYSIS OIL UPGRADING TO BTX

    公开(公告)号:US20230002689A1

    公开(公告)日:2023-01-05

    申请号:US17365008

    申请日:2021-07-01

    Abstract: A method for upgrading pyrolysis oil includes contacting a pyrolysis oil feed with hydrogen in the presence of a mixed metal oxide catalyst in a first slurry reactor, where: the pyrolysis oil feed comprises multi-ring aromatic compounds comprising greater than or equal to sixteen carbon atoms, and contacting the pyrolysis oil feed with hydrogen in the presence of the mixed metal oxide catalyst in the first slurry reactor to convert at least a portion of the multi-ring aromatic compounds in the pyrolysis oil feed to light aromatic compounds comprising di-aromatic compounds, tri-aromatic compounds, or both, passing an intermediate stream comprising the light aromatic compounds to a second slurry reactor downstream of the first slurry reactor; and contacting the intermediate stream with hydrogen in the presence of a mesoporous zeolite supported metal catalyst in a second slurry reactor.

    SYSTEMS AND METHODS FOR UPGRADING PYROLYSIS OIL TO LIGHT AROMATICS OVER MIXED METAL OXIDE CATALYSTS

    公开(公告)号:US20220243135A1

    公开(公告)日:2022-08-04

    申请号:US17167489

    申请日:2021-02-04

    Abstract: A system for upgrading pyrolysis oil may include a pyrolysis upgrading unit having a mixed metal oxide catalyst and a separation unit operable to separate used mixed metal oxide catalyst from a reaction effluent. A method for upgrading pyrolysis oil may include contacting the pyrolysis oil with hydrogen in the presence of the mixed metal oxide catalyst at reaction conditions to produce a reaction effluent. The pyrolysis oil may include multi-ring aromatic compounds. The mixed metal oxide catalyst may include a plurality of catalyst particles and each of the plurality of catalyst particles having a plurality of metal oxides. Contacting the pyrolysis oil with hydrogen in the presence of the mixed metal oxide catalyst at the reaction conditions may convert at least a portion of the multi-ring aromatic compounds in the pyrolysis oil to the light aromatic compounds.

    Integrated process for the production of isononanol and stable / lubricating alcohol gasoline blending components

    公开(公告)号:US11326108B1

    公开(公告)日:2022-05-10

    申请号:US17198705

    申请日:2021-03-11

    Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing alcohol gasoline blending components includes cracking, in a steam cracker, a hydrocarbon feed to form a first ethylene stream, a first propylene stream, and a C4 stream comprising isobutene and butadiene; reacting, in a methyl tertiary butyl ether (MTBE) unit, the C4 stream with a methanol stream to form MTBE and a butadiene-rich C4 stream; selectively hydrogenating, in a butadiene unit, the butadiene-rich C4 stream to form a butene-rich C4 stream including butene-1, cis-butene-2, and trans-butene-2; producing, in an isononanol unit, isononanol and an olefin-rich stream from the butene-rich C4 stream; and hydrating the olefin-rich stream in a hydration unit by combining the olefin-rich stream with a water stream and a catalyst composition to produce the alcohol gasoline blending components.

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