APPARATUS FOR MIXING IN CATALYTIC CRACKER REACTOR

    公开(公告)号:WO2022169739A1

    公开(公告)日:2022-08-11

    申请号:PCT/US2022/014687

    申请日:2022-02-01

    Abstract: The present invention provides a catalytic cracking reactor comprising a conduit, configured to allow the passage of a flow of catalyst particles, and an injection zone comprising a ring of feed injectors extending inwardly from the wall of reactor and angled to inject feed into the flow of catalyst particles, characterised in that the reactor also comprises a contacting device protruding into the reactor from the inner wall of said reactor upstream of the injection zone. The present invention also provides a method of mixing a fluidised stream of catalyst particles with a hydrocarbon feed, said method comprising the steps of: a) creating a stream of fluidised catalyst particles in a reactor; b) passing said stream of fluidised catalyst particles past a contacting device protruding into the reactor from the inner wall of said reactor; c) subsequently passing the stream of fluidised catalyst particles through an injection zone comprising a ring of feed injectors extending inwardly from the wall of the reactor and contacting said stream of fluidised catalyst particles with hydrocarbon feed provided through said feed injectors; d) passing the stream of fluidised catalyst particles contacted with hydrocarbon feed to a downstream section of the reactor to convert the hydrocarbon feed to a converted product in the presence of the catalyst particles.

    RECOVERY OF ALIPHATIC HYDROCARBONS
    8.
    发明申请

    公开(公告)号:WO2022079059A1

    公开(公告)日:2022-04-21

    申请号:PCT/EP2021/078227

    申请日:2021-10-12

    Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid stream comprising aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, involving a) liquid-liquid extraction of said liquid stream with an extraction solvent; b) mixing the extract stream, comprising extraction solvent, heteroatom containing organic compounds and optionally aromatic hydrocarbons, with a demixing solvent to remove part of the heteroatom containing organic compounds and optional aromatic hydrocarbons; and c) separation of the remaining stream into a demixing solvent stream and an extraction solvent stream, wherein before and/or after step c) additional heteroatom containing organic compounds and optional aromatic hydrocarbons are removed from that remaining stream and/or from a stream resulting from step c), respectively, by contacting the latter stream (s) with a sorption agent. Further, the invention relates to a process for the recovery of aliphatic hydrocarbons from plastics comprising the above-mentioned process; and to a process for steam cracking a hydrocarbon feed comprising aliphatic hydrocarbons as recovered in one of the above-mentioned processes.

    RECOVERY OF ALIPHATIC HYDROCARBONS
    10.
    发明申请

    公开(公告)号:WO2022079025A1

    公开(公告)日:2022-04-21

    申请号:PCT/EP2021/078172

    申请日:2021-10-12

    Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid stream comprising aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, involving (i) contacting said liquid stream with a washing solvent thereby removing heteroatom containing organic compounds; a) liquid- liquid extraction of the washed stream with an extraction solvent thereby recovering part of the aliphatic hydrocarbons; b1) mixing the extract stream, comprising extraction solvent, aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, with a demixing solvent to recover additional aliphatic hydrocarbons; b2) mixing the remaining stream with additional demixing solvent to remove heteroatom containing organic compounds and optional aromatic hydrocarbons; and c) separation of the remaining stream into a demixing solvent stream and an extraction solvent stream. Further, the invention relates to a process for the recovery of aliphatic hydrocarbons from plastics comprising the above-mentioned process; and to a process for steam cracking a hydrocarbon feed comprising aliphatic hydrocarbons as recovered in one of the above-mentioned processes.

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