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    High pressure polymerization of ethylene and apparatus therefore
    111.
    发明授权
    High pressure polymerization of ethylene and apparatus therefore 失效
    乙烯和其设备的高压聚合

    公开(公告)号：US3692763A

    公开(公告)日：1972-09-19

    申请号：US3692763D

    申请日：1970-09-17

    Applicant: PIETER VAN SAANE ,  ROBERT J M PAUMEN

    Inventor： SAANE PIETER VAN ,  PAUMEN ROBERT J M

    IPC: B01J3/02 ,  B01J3/04 ,  C08F2/00 ,  C08F10/00 ,  C08F3/04 ,  C08F1/60 ,  C08F1/98

    CPC classification number: B01J3/042 ,  B01J3/02 ,  C08F10/00 ,  C08F4/28

    Abstract: A process for the high pressure polymerization of ethylene in an autoclave reactor is disclosed, wherein the autoclave contents are maintained in a thoroughly mixed condition by converting the pressure energy of the ethylene feed into kinetic energy by throttling the flow of ethylene feed into the autoclave, to create a turbulent flow wherein the Reynolds number exceeds 2100, to produce macroscopic circulations in the autoclave. Such a process has numerous advantages, primarily in the reduction of the number of explosive decompositions of ethylene. Apparatus for conducting such a process are also disclosed, wherein such apparatus includes an autoclave having at least one ethylene feed inlet which imparts a rotary motion to the autoclave contents.

    Abstract translation: 公开了一种在高压釜反应器中进行乙烯高压聚合的方法，其中高压釜内容物通过将乙烯进料的流动节流到高压釜中而将乙烯进料的压力转化为动能，保持在充分混合的状态， 以产生湍流，其中雷诺数超过2100，以在高压釜中产生宏观循环。 这种方法具有许多优点，主要是减少乙烯的爆炸分解的数量。 还公开了用于进行这种方法的设备，其中这种设备包括具有至少一个乙烯进料入口的高压釜，其向高压釜内容物提供旋转运动。

    Pressure vessel
    116.
    发明授权
    Pressure vessel 有权

    公开(公告)号：US12128346B2

    公开(公告)日：2024-10-29

    申请号：US17595018

    申请日：2020-04-30

    Applicant: LINDE GMBH

    Inventor： Alexander Gnadl ,  Verena Kramer

    IPC: B01D53/04 ,  B01J3/04 ,  B01J8/00 ,  F16J12/00 ,  F17C13/00

    CPC classification number: B01D53/0423 ,  B01D53/0462 ,  B01J3/042 ,  B01J8/008 ,  F16J12/00 ,  F17C13/002 ,  B01J2208/00495

    Abstract: A pressure vessel comprising a cylindrical middle section, at a first end of which there is provided a top end cover, and at the second end of which there is provided a bottom end cover, the pressure vessel comprising an outer casing, wherein at least in the cylindrical middle section there is provided an insulation arrangement on the inside of the outer casing, the insulation arrangement comprising at least one insulation material layer, and a protective layer provided on the inside of the insulation arrangement, wherein at least one insulation material layer comprises a plurality of insulation material plates, especially ceramic fibre plates, and/or the protective layer comprises a plurality of protective plates, and wherein the cylindrical middle section is provided with a plurality of rings adapted to secure the at least one insulation layer and/or the protective layer to the outer casing.

    CARRIER FOR HIGH-PRESSURE PROCESSING AT MODERATE TEMPERATURES
    118.
    发明公开
    CARRIER FOR HIGH-PRESSURE PROCESSING AT MODERATE TEMPERATURES 审中-公开

    公开(公告)号：US20240149234A1

    公开(公告)日：2024-05-09

    申请号：US18549043

    申请日：2022-02-25

    Applicant: HIPERBARIC, S.A.

    Inventor： Carole TONELLO SAMSON ,  Ricardo VILLALBA POZA ,  Andrés HERNANDO SAIZ

    IPC: B01J3/04

    CPC classification number: B01J3/042

    Abstract: A carrier is provided for high pressure processing of food (HPP), beverage, cosmetic, pharmaceutical, or biological products at moderate temperatures in horizontal machines. The carrier includes a cylindrical body, an inner space to accommodate the products, and one or more small openings longitudinally distributed along the carrier side wall. The carrier also has one or several inner pieces, acting as ballast, placed on the diametrically opposite side wall of the openings. The one or several inner pieces are coated by one or more sheets of a material with high adiabatic heating properties upon compression.

    PROCESSES FOR REDUCING SHUTDOWN TIME OF SUB-SYSTEMS IN LOW-DENSITY POLYETHYLENE PRODUCTION
    120.
    发明公开
    PROCESSES FOR REDUCING SHUTDOWN TIME OF SUB-SYSTEMS IN LOW-DENSITY POLYETHYLENE PRODUCTION 审中-公开

    公开(公告)号：US20230201783A1

    公开(公告)日：2023-06-29

    申请号：US17999183

    申请日：2021-05-18

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Cindy DEWITTE

    IPC: B01J3/04 ,  B01J4/00

    CPC classification number: B01J3/042 ,  B01J4/008 ,  B01J2219/00162 ,  B01J2219/0027

    Abstract: Processes for reducing shutdown time of a sub-system/ reactor component in an LDPE process. The process includes closing one or more pairs of upstream lock-out valves, each pair of upstream lock-out valves being located in an inlet stream upstream of the reactor component and configured to cease fluid flow into the reactor component through said inlet stream when said pair of upstream lock-out valves is closed; closing one or more pairs of downstream lock-out valves, each pair of downstream lock-out valves being located in an outlet stream downstream of the reactor component and configured to cease fluid flow out of the reactor component through said outlet stream when said pair of downstream lock-out valves is closed; depressurizing the reactor component; introducing purge gas comprising N2 into the reactor component at and withdrawing the purge gas from the reactor component.

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