利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.023 秒)

    Hydrocarbon recovery with pressure swing adsorption
    1.
    发明授权
    Hydrocarbon recovery with pressure swing adsorption 有权
    烃回收与变压吸附

    公开(公告)号：US09427694B2

    公开(公告)日：2016-08-30

    申请号：US14957412

    申请日：2015-12-02

    申请人： Chevron Phillips Chemical Company LP

    发明人： Lei Ji ,  Ai-Fu Chang

    IPC分类号： B01D53/047 ,  C07C7/12 ,  C07C7/13 ,  C08F10/02 ,  C07C7/00 ,  C07C7/04 ,  B01J8/20 ,  B01J19/24 ,  C08F2/14 ,  B01J19/18

    CPC分类号： B01D53/047 ,  B01D2253/108 ,  B01D2256/24 ,  B01D2257/702 ,  B01D2259/40086 ,  B01D2259/402 ,  B01J8/20 ,  B01J19/2435 ,  B01J19/245 ,  B01J2208/00265 ,  B01J2219/00105 ,  C07C7/005 ,  C07C7/04 ,  C07C7/12 ,  C07C7/13 ,  C08F10/02 ,  Y02P20/582 ,  C07C11/04 ,  C08F2/01 ,  C08F210/16 ,  C08F210/14 ,  C08F2/14

    摘要： A process for component separation in a polymer production system comprising: (a) separating a polymerization product into a gas stream and a polymer stream; (b) processing the gas stream in distillation columns to yield a light hydrocarbon stream (LHS) comprising ethylene and ethane; (c) contacting LHS with a purged hydrocarbon adsorber to yield a loaded hydrocarbon adsorber and a non-adsorbed gas stream, wherein ethane is adsorbed by the purged hydrocarbon adsorber at a first pressure to yield adsorbed ethane, and wherein the non-adsorbed gas stream comprises recovered ethylene; (d) contacting the loaded hydrocarbon adsorber with a sweeping gas stream at a second pressure to yield an unloaded hydrocarbon adsorber and a recovered adsorbed gas stream comprising the sweeping gas stream and desorbed ethane; and (e) contacting the unloaded hydrocarbon adsorber with the sweeping gas stream at the first pressure to yield the purged hydrocarbon adsorber and a spent sweeping gas.

    摘要翻译： 一种聚合物生产系统中组分分离的方法，包括：（a）将聚合产物分离成气流和聚合物流; （b）在蒸馏塔中处理气流以产生包含乙烯和乙烷的轻质烃流（LHS）; （c）使LHS与吹扫的烃吸附器接触以产生负载的烃吸附器和非吸附气流，其中乙烷在第一压力下被吹扫的烃吸附器吸附以产生吸附的乙烷，并且其中未吸附的气流 包括回收的乙烯; （d）在第二压力下使负载的烃吸附器与清扫气流接触，以产生无载烃吸附器和包含扫气流和解吸乙烷的回收吸附气流; 和（e）在第一压力下将未加载的烃吸附器与清扫气流接触，以产生清洗的烃吸附器和废清洁气体。

    System and method for rapid dump tank heating
    3.
    发明授权
    System and method for rapid dump tank heating 有权

    公开(公告)号：US11578145B2

    公开(公告)日：2023-02-14

    申请号：US17314236

    申请日：2021-05-07

    申请人： Chevron Phillips Chemical Company LP

    发明人： Joseph A. Curren ,  James E. Hein ,  Ralph W. Romig ,  Ai-Fu Chang

    IPC分类号： C08F2/01 ,  B01J4/00 ,  B01J19/00 ,  B01J19/18 ,  C08F6/00 ,  C08F2/00 ,  C08F10/00

    摘要： A method of operating a dump tank of a polymer production process by transferring all or a portion of a content of a polymerization reactor into the dump tank, wherein the reactor contents comprise solid polymer, and liquid and gaseous non-product components, and removing at least a portion of the liquid and gaseous non-product components from the dump tank by: reducing a pressure of the dump tank, subjecting the solid polymer to a first cleaning stage comprising heating the solid polymer by introducing a first heated treatment gas into the dump tank, and subjecting the solid polymer to a second cleaning stage comprising purging the solid polymer by introducing a second heated treatment gas into the dump tank.

    System and method for rapid dump tank heating
    6.
    发明授权
    System and method for rapid dump tank heating 有权

    公开(公告)号：US11021549B2

    公开(公告)日：2021-06-01

    申请号：US16404409

    申请日：2019-05-06

    申请人： Chevron Phillips Chemical Company LP

    发明人： Joseph A. Curren ,  James E. Hein ,  Ralph W. Romig ,  Ai-Fu Chang

    IPC分类号： C08F2/00 ,  C08F2/01 ,  C08F6/00 ,  B01J4/00 ,  B01J19/00 ,  B01J19/18 ,  C08F10/00

    摘要： A method of operating a dump tank of a polymer production process by transferring all or a portion of a content of a polymerization reactor into the dump tank, wherein the reactor contents comprise solid polymer, and liquid and gaseous non-product components, and removing at least a portion of the liquid and gaseous non-product components from the dump tank by: reducing a pressure of the dump tank, subjecting the solid polymer to a first cleaning stage comprising heating the solid polymer by introducing a first heated treatment gas into the dump tank, and subjecting the solid polymer to a second cleaning stage comprising purging the solid polymer by introducing a second heated treatment gas into the dump tank.

    SYSTEMS AND TECHNIQUES FOR HEATING POLYMER REACTOR FLASHLINES
    9.
    发明公开
    SYSTEMS AND TECHNIQUES FOR HEATING POLYMER REACTOR FLASHLINES 审中-公开

    公开(公告)号：US20230399419A1

    公开(公告)日：2023-12-14

    申请号：US17664275

    申请日：2022-05-20

    申请人： CHEVRON PHILLIPS CHEMICAL COMPANY LP

    发明人： Ai-Fu Chang ,  Hetian Li ,  Christina Barry

    IPC分类号： C08F2/01 ,  C08F10/02 ,  B01J19/00

    CPC分类号： C08F2/01 ,  C08F10/02 ,  B01J2219/00085 ,  B01J2219/00065 ,  B01J2219/00063 ,  B01J19/0013

    摘要： A polyolefin reactor flashline heater system may include an enclosure, a heating section, and a transformer. The heating section is contained in the enclosure and extends between a first end and a second end. The first end is fluidically coupled to a polyolefin reactor product inlet. The second end is fluidically coupled to a heated product outlet. One or more pipe sections are coupled in series between the first end and the second end. The one or more pipe sections are formed of an electrically conducting material and have a predetermined diameter to transport a polyolefin reactor stream from the first end to the second end. The transformer is electrically coupled to the first end and the second end and configured to heat the heating section by impedance heating. A polymerization system may include a polyolefin reactor coupled to the polyolefin reactor flashline heater system.