利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.015 秒)

    Light oil reflux heavies removal process
    2.
    发明授权
    Light oil reflux heavies removal process 有权

    公开(公告)号：US10899974B2

    公开(公告)日：2021-01-26

    申请号：US15926099

    申请日：2018-03-20

    申请人： CONOCOPHILLIPS COMPANY

    发明人： Paul R. Davies ,  Michael J. Calderon ,  Dale L. Embry ,  David W. Larkin ,  Qi Ma

    IPC分类号： B01D3/06 ,  C10G53/02 ,  C10G7/00 ,  B01D3/14 ,  B01D1/28

    摘要： The invention relates to various nonlimiting embodiments that include methods, apparatuses or systems for processing natural gas comprising a heavies removal column processing natural gas and light oil reflux. The overhead stream goes to heavies treated natural gas storage. The heavies removal column reboiler bottoms stream product is input to a debutanizer column. The debutanizer column overhead lights are input to a flash drum where the bottoms is pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the debutanizer reboiler bottoms product is stored as stabilized condensate. Alternatively, debutanizer column overhead lights are sent to heavies treated gas storage and the bottoms stream product goes to a depentanizer column, the overhead lights are pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the depentanizer reboiler bottoms product is stabilized condensate.

    Alternative two column HRU design with rich reflux
    5.
    发明授权
    Alternative two column HRU design with rich reflux 有权

    公开(公告)号：US11320197B2

    公开(公告)日：2022-05-03

    申请号：US15925873

    申请日：2018-03-20

    申请人： CONOCOPHILLIPS COMPANY

    发明人： Dale L. Embry ,  Paul R. Davies ,  Qi Ma ,  David W. Larkin ,  Michael J. Calderon

    IPC分类号： F25J3/02 ,  C10L3/10 ,  C10G5/06 ,  C10G5/04

    摘要： The invention relates to a system, method and apparatus for removing heavies from natural gas. Natural gas and an external rich reflux gas feed are processed in a single column refluxed absorber. A bottoms stream is routed to a first heat exchanger and then to a stabilizer column where an overhead stream from the stabilizer column is routed through a condenser for partial separation into an overhead stream. A rich solvent may be introduced to the stabilizer column. The overhead stream is routed through a condenser for partial separation into a stabilizer reflux and a second overhead stream lights. The second overhead stream lights is routed to a heat exchanger and then routed to a partial condenser where the stream is separated into a heavies rich reflux stream, a distillate stream and heavies treated natural gas stream. The rich reflux is routed through a heat exchanger and the rich reflux is pumped to the single column refluxed absorber to be introduced into the single column refluxed absorber as the external rich reflux gas feed.

    Standalone high-pressure heavies removal unit for LNG processing
    10.
    发明授权
    Standalone high-pressure heavies removal unit for LNG processing 有权

    公开(公告)号：US11604025B2

    公开(公告)日：2023-03-14

    申请号：US17072565

    申请日：2020-10-16

    申请人： ConocoPhillips Company

    发明人： Jinghua Chan ,  Qi Ma ,  Dale L. Embry ,  Attilio J. Praderio

    IPC分类号： F25J3/02 ,  F25J1/00 ,  F25J1/02

    摘要： Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a dry feed gas is received. The dry feed gas is chilled with clean vapor from a heavies removal column to form a chilled feed gas. The chilled feed gas is partially condensed into a vapor phase and a liquid phase. The liquid phase retains freezing components. The freezing components are extracted using a reflux stream in the heavies removal column. The freezing components are removed as a condensate. The vapor phase is compressed into a clean feed gas. The clean feed gas is free of the freezing components for downstream liquefaction.