公开(公告)号：US09823015B2

公开(公告)日：2017-11-21

申请号：US14747417

申请日：2015-06-23

Applicant: TECHNIP FRANCE

Inventor： Vanessa Gahier ,  Julie Gouriou ,  Loic Barthe ,  Sandra Thiebault

IPC: F25J3/02

CPC classification number: F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/30 ,  F25J2200/50 ,  F25J2200/76 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2230/24 ,  F25J2230/60 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2270/02 ,  F25J2270/04 ,  F25J2270/06 ,  F25J2270/88 ,  F25J2290/80

Abstract: This method envisions cooling the supply flow in a first heat exchanger, separation in a first separation flask in order to produce a light upper flow and a heavy lower flow and dividing the light upper flow into a supply fraction of a dynamic pressure reduction turbine and a supply fraction of a first distillation column. A cooled reflux flow is formed from an effluent from a dynamic pressure reduction turbine, the portion of the effluent being cooled and at least partially liquefied in a heat exchanger. The cooled reflux flow is introduced from the heat exchanger into the first distillation column.

公开(公告)号：US20200208911A1

公开(公告)日：2020-07-02

申请号：US16811953

申请日：2020-03-06

Applicant: TECHNIP FRANCE

Inventor： Vanessa Gahier ,  Julie Gouriou ,  Sandra Thiebault ,  Loic Barthe

IPC: F25J3/02

Abstract: This method comprises a separation of a feed stream (16) into a first fraction (41A) and a second fraction (41B). It comprises injecting the first cooled feed fraction (42) into a first separating flask (22) to produce a light head stream (44).The method comprises expanding a turbine feed fraction (48) resulting from the light head stream (44) in a first turbine (26) up to a first pressure and injecting the first expanded fraction (54) into a distillation column (30).The method comprises expanding the second fraction of the feed stream (41B) in a second turbine (40) up to a second pressure substantially equal to the first pressure.The second expanded fraction (91A) from the second dynamic expansion turbine (40) is used to form a cooled reflux stream (91B) injected into the column (30).

公开(公告)号：US20150153101A1

公开(公告)日：2015-06-04

申请号：US14412172

申请日：2013-07-05

Applicant: TECHNIP FRANCE

Inventor： Vanessa Gahier ,  Fabien Gaël Léo Lacroix ,  Vincent Patrick Mathieu

IPC: F25J1/00

CPC classification number: F25J1/0022 ,  C10L3/10 ,  C10L3/12 ,  C10L2290/06 ,  C10L2290/10 ,  C10L2290/46 ,  C10L2290/48 ,  C10L2290/543 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/72 ,  F25J2200/76 ,  F25J2200/78 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2215/62 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2270/04 ,  F25J2270/06 ,  F25J2270/88

Abstract: The method includes the following steps, sampling a recycling stream (152) in a head stream (131, 140, 141) stemming from a recovery column (35), establishing a heat exchange relationship of the recycling stream (152) with at least one portion of the head stream (131) stemming from the recovery column (35), reintroducing, after expansion, the cooled and expanded recycling stream into the recovery column (35). The method includes sampling in the bottom of the recovery column (35) of at least one bottom reboiling stream (165), and establishing a heat exchange relationship of the re-boiling stream with at least one portion of the initial natural gas (13) or/and with the recycling stream (152), the bottom reboiling being ensured by the calories taken from the initial natural gas stream (13) or/and from the recycling stream (152)

Abstract translation: 该方法包括以下步骤：对从回收塔（35）产生的头流（131,140,​​141）中的再循环流（152）进行采样，建立再循环流（152）与至少一个 从回收塔（35）产生的头部流（131）的部分，在膨胀之后再次引入冷却和膨胀的再循环流进入回收塔（35）。 该方法包括在至少一个底部再沸腾流（165）的回收塔（35）的底部取样，并且建立再沸腾流与至少一部分初始天然气（13）的热交换关系， 或/和再循环流（152），通过从初始天然气流（13）或/和再循环流（152）获取的热量来确保底部再沸腾，