公开(公告)号：US5643469A

公开(公告)日：1997-07-01

申请号：US464099

申请日：1995-06-05

Applicant: Isabelle Prevost ,  Alexandre Rojey

Inventor： Isabelle Prevost ,  Alexandre Rojey

IPC: B01D17/02 ,  B01D17/038 ,  C10G33/02 ,  B01D21/26 ,  B03C5/00

CPC classification number: C10G33/02 ,  B01D17/0217 ,  B03C11/00 ,  B03C2201/02

Abstract: Device for separating a mixture consisting of at least a continuous phase (I) and of at least a conducting disperse phase (II) in the form of particles such as drops in the continuous phase, the two phases having different densities. The device includes at least two substantially cylindrical parts (1, 3) fitted into each other which delimit an annular zone (5), introducing means (6, 7) for introducing the mixture to be separated at the periphery of the outer tubular part (1), arranged so as to communicate a rotational motion to the mixture, means for applying between the two parts (1, 3) a potential difference capable of causing the particles of the disperse phase (II) to coalesce, receiving and decanting means (4), means (8, 9) for discharging the two phases (I) and (II) at least partly separated on account of the differentiated motion of the particles which have coalesced and means for establishing a circulation of the mixture.

Abstract translation: 用于分离由至少连续相（I）和至少导电分散相（II）组成的混合物的装置，其形式为连续相中的液滴形式，两相具有不同的密度。 该装置包括彼此嵌合的至少两个基本上圆柱形的部分（1,3），其限定环形区域（5）;引入装置（6,7），用于将待分离的混合物引导到外部管状部件 1），其布置成将混合物的旋转运动传递到在两个部分（1,3）之间施加能够使分散相（II）的颗粒聚结，接收和倾析的装置（1） 4），用于排出两相（I）和（II）的装置（8,9）至少部分地分离，这是由于已经聚结的颗粒的微分运动和用于建立混合物的循环的装置。

公开(公告)号：US5651269A

公开(公告)日：1997-07-29

申请号：US507277

申请日：1995-08-30

Applicant: Isabelle Prevost ,  Alexandre Rojey

Inventor： Isabelle Prevost ,  Alexandre Rojey

IPC: F25J1/00 ,  F25J1/02 ,  F25J3/02 ,  F25J3/06 ,  F25J3/00

CPC classification number: F25J3/0257 ,  F25J1/0022 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/0052 ,  F25J1/0202 ,  F25J1/0219 ,  F25J1/0254 ,  F25J1/0264 ,  F25J1/0282 ,  F25J1/0283 ,  F25J1/0288 ,  F25J3/0209 ,  F25J3/0233 ,  F25J2200/02 ,  F25J2200/70 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2230/20 ,  F25J2240/02 ,  F25J2240/30 ,  F25J2240/40 ,  F25J2245/02 ,  F25J2270/06 ,  F25J2270/12 ,  F25J2270/88

Abstract: The method of the invention for liquefying a natural gas consists in liquefying at least a part of this gas by expanding it with mechanical energy, whereby during this expansion the gas changes from a dense phase to a liquid phase without undergoing a phase transition.

Abstract translation: PCT No.PCT / FR94 / 01535 Sec。 371日期：1995年8月30日 102（e）日期1995年8月30日PCT 1994年12月26日PCT公布。 公开号WO95 / 18345 日本1995年7月6日本发明用于液化天然气的方法是通过用机械能膨胀来液化该气体的至少一部分，由此在该膨胀期间，气体从密相转变为液相而不经历 相变。

公开(公告)号：US5701761A

公开(公告)日：1997-12-30

申请号：US652527

申请日：1996-06-03

Applicant: Isabelle Prevost ,  Alexandre Rojey

Inventor： Isabelle Prevost ,  Alexandre Rojey

IPC: F25J1/00 ,  C10L3/06 ,  C10L10/14 ,  F25J1/02 ,  F25J3/02 ,  F25J3/00

CPC classification number: F25J3/0257 ,  F25J1/0022 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/005 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0092 ,  F25J1/0212 ,  F25J1/0214 ,  F25J1/0264 ,  F25J3/0209 ,  F25J3/0233 ,  F25J2200/02 ,  F25J2200/70 ,  F25J2215/04 ,  F25J2220/64

Abstract: A pressurized natural gas is liquefied through at least one cooling cycle, in which a mixture of cooling fluids is used, comprising at least the following steps: a) at least some of the said cooling mixture is condensed by compression and cooling, for example, using an external cooling fluid to obtain at least one vapor fraction and one liquid fraction, b) at least some of each of the vapor and liquid fractions is expanded separately to obtain a light fluid M1 comprising mostly a vapor phase and a heavy fluid M2 comprising mostly a liquid phase, c) the fluids M1 and M2 are at least partially mixed to obtain a low-temperature mixture, and d) the natural gas is liquified and undercooled under pressure by a process of heat exchange with the low-temperature mixture produced during step c).

Abstract translation: PCT No.PCT / FR95 / 01281 Sec。 371日期1996年6月3日 102（e）日期1996年6月3日PCT提交1995年10月3日PCT公布。 公开号WO96 / 11370 日期1996年4月18日加压天然气通过至少一个冷却循环液化，其中使用冷却流体的混合物，其至少包括以下步骤：a）至少一些所述冷却混合物通过压缩而冷凝， 冷却，例如，使用外部冷却流体获得至少一个蒸汽馏分和一个液体馏分，b）每个蒸气和液体馏分中的至少一部分分别膨胀以获得主要包含气相的轻质流体M1和 主要包含液相的重流体M2，c）流体M1和M2至少部分地混合以获得低温混合物，以及d）天然气在压力下被液化和过冷却通过与 在步骤c）期间产生的低温混合物。

公开(公告)号：US5466384A

公开(公告)日：1995-11-14

申请号：US147542

申请日：1993-11-05

Applicant: Isabelle Prevost ,  Alexandre Rojey

Inventor： Isabelle Prevost ,  Alexandre Rojey

IPC: B01D17/02 ,  B01D29/11 ,  B01D65/08 ,  F01M13/04 ,  B01D21/20

CPC classification number: B01D65/08 ,  B01D17/0217 ,  B01D29/115 ,  B01D2201/02 ,  B01D2321/2041 ,  B01D2321/30 ,  F01M2013/0427

Abstract: A device for separating a mixture comprised of at least a continuous phase I and at least a disperse phase II, one of the phases being a light phase and the other being a heavy phase, comprising canalization means for canalizing a current of the mixture and suited for communicating thereto a helical motion along a central shaft (A) and filtration means, the motion leading to a differentiated radial displacement of the light phase and of the heavy phase under the action of the centrifugal force, during which the continuous phase I flows at least partly through said filtration means. The canalization means and filtration means are arranged to define a helical passage which decreases according to a direction of flow of the mixture through the device.

Abstract translation: 用于分离由至少连续相I和至少分散相II组成的混合物的装置，其中一个相是轻相，另一个是重相，包括用于使混合物的电流导管适合的通道装置 用于与中心轴（A）和过滤装置一起传递螺旋运动，该运动在离心力的作用下导致轻相和重相的微分径向位移，在此期间连续相I流过 最少部分地通过所述过滤装置。 管道装置和过滤装置被布置成限定根据混合物通过装置的流动方向而减小的螺旋通道。

公开(公告)号：US5647981A

公开(公告)日：1997-07-15

申请号：US212762

申请日：1994-03-15

Applicant: Isabelle Prevost ,  Alexandre Rojey

Inventor： Isabelle Prevost ,  Alexandre Rojey

IPC: B01D17/02 ,  B01D17/038 ,  C10G33/02 ,  B01D21/26 ,  B03C5/00

CPC classification number: C10G33/02 ,  B01D17/0217 ,  B03C11/00 ,  B03C2201/02

Abstract: Device for separating a mixture consisting of at least a continuous phase (I) and of at least a conducting disperse phase (II) in the form of particles such as drops in the continuous phase, the two phases having different densities. The device includes at least two substantially cylindrical parts (1, 3) fitted into each other which delimit an annular zone (5), introducing means (6, 7) for introducing the mixture to be separated at the periphery of the outer tubular part (1), arranged so as to communicate a rotational motion to the mixture, means for applying between the two parts (1, 3) a potential difference capable of causing the particles of the disperse phase (II) to coalesce, receiving and decanting means (4), means (8, 9) for discharging the two phases (I) and (II) at least partly separated on account of the differentiated motion of the particles which have coalesced and means for establishing a circulation of the mixture.

Abstract translation: 用于分离由至少连续相（I）和至少导电分散相（II）组成的混合物的装置，其形式为连续相中的液滴形式，两相具有不同的密度。 该装置包括彼此嵌合的至少两个基本上圆柱形的部分（1,3），其限定环形区域（5）;引入装置（6,7），用于将待分离的混合物引导到外部管状部件 1），其布置成将混合物的旋转运动传递到在两个部分（1,3）之间施加能够使分散相（II）的颗粒聚结，接收和倾析的装置（1） 4），用于排出两相（I）和（II）的装置（8,9）至少部分地分离，这是由于已经聚结的颗粒的微分运动和用于建立混合物的循环的装置。

公开(公告)号：US06156950A

公开(公告)日：2000-12-05

申请号：US199351

申请日：1998-11-25

Applicant: Karine Ragil ,  Isabelle Prevost ,  Olivier Clause ,  Joseph Larue ,  Benoit Millot

Inventor： Karine Ragil ,  Isabelle Prevost ,  Olivier Clause ,  Joseph Larue ,  Benoit Millot

IPC: B01D53/22 ,  B01D53/04 ,  B01J20/34 ,  C07C7/04 ,  C07C7/12 ,  C07C7/144 ,  C07C9/15 ,  C07C9/16 ,  C07C11/00 ,  C07C15/00 ,  C10G25/00 ,  C10G31/00 ,  C10G45/58 ,  C10G51/02 ,  C10G51/06 ,  C10G53/02 ,  C10G53/08 ,  C07C7/00 ,  C07C5/13

CPC classification number: C10G45/58 ,  C10G53/02 ,  C10G53/08

Abstract: For producing three effluents which are respectively rich in straight chain paraffins, in mono-branched paraffins, and in di-branched and tri-branched paraffins possibly with naphthenic and/or aromatic compounds, from C5-C8 cuts or intermediate cuts (C5-C7, C6-C8, C7-C8, C6-C7, C7 or C8), comprising paraffic and possibly naphthenic, aromatic and olefinic hydrocarbons, the separation process of the invention uses at least two separation units operating either by adsorption or by permeation. It is of particular application when coupled with a hydro-isomerization process, which selectively recycles straight chain and mono-branched paraffins, necessary with paraffins containing more than 7 carbon atoms.

Abstract translation: 对于分别富含直链烷烃，单支链烷烃和可能具有环烷和/或芳族化合物的二支链和三支链烷烃中的三种流出物，来自C5-C8馏分或中间馏分（C5-C7 ，C6-C8，C7-C8，C6-C7，C7或C8），包括副作用和可能的环烷烃，芳族和烯烃，本发明的分离方法使用至少两个通过吸附或渗透操作的分离单元。 当与加氢异构化方法相结合时，它特别适用，该方法选择性循环使用含有多于7个碳原子的链烷烃所必需的直链和单支链烷烃。

公开(公告)号：US5905182A

公开(公告)日：1999-05-18

申请号：US936099

申请日：1997-09-23

Applicant: Christian Streicher ,  Isabelle Prevost

Inventor： Christian Streicher ,  Isabelle Prevost

IPC: C07C7/144 ,  C10G31/11 ,  C07C7/04

CPC classification number: C10G31/11 ,  C07C7/144

Abstract: A mixture that contains benzene, other aromatic hydrocarbons and paraffinic hydrocarbons and/or naphthenic hydrocarbons that have 5 to 10 carbon atoms undergoes distillation in a first column, producing a distillate and a residue; a phase is drawn off laterally from the first distillation column, preferably at a point on the column where the benzene content is essentially at maximum where the toluene content is low; the phase that is drawn off is sent toward a first permeation stage, which produces a permeate that is enriched with benzene and a retentate; at least a portion of said retentate is recycled toward said first distillation column; the benzene-enriched permeate from stage (3) is sent to a second distillation column, from which the purified benzene comes out at the bottom and a distillate vapor comes out at the top; the distillate vapor is condensed, and the condensed distillate is sent at least in part to a second permeation stage; in said second permeation stage, a permeate that is also enriched in benzene and a retentate are separated; the permeate is recycled to the second distillation column; and the retentate is recycled toward the inlet of the first permeation stage or directly toward the first distillation column.

Abstract translation: 含有5至10个碳原子的苯，其它芳烃和链烷烃和/或环烷烃的混合物在第一塔中进行蒸馏，产生馏出物和残余物; 相位从第一蒸馏塔横向排出，优选在苯含量基本上处于甲苯含量低的最大值的塔上; 被排出的相被送往第一渗透阶段，其产生富含苯和渗余物的渗透物; 所述渗余物的至少一部分被再循环到所述第一蒸馏塔; 将来自阶段（3）的富含苯的渗透物送入第二蒸馏塔，纯化的苯从底部出来，蒸馏出的蒸气在顶部; 馏出物蒸气冷凝，并且将冷凝的馏出物至少部分送至第二渗透阶段; 在所述第二渗透阶段中，分离富含苯和渗余物的渗透物; 渗透物再循环至第二蒸馏塔; 并且滞留物被再循环到第一渗透阶段的入口或直接朝向第一蒸馏塔。

公开(公告)号：US07211706B2

公开(公告)日：2007-05-01

申请号：US10211233

申请日：2002-08-05

Applicant: Thierry Gauthier ,  Christophe Chau ,  Denis Uzio ,  Isabelle Prevost

Inventor： Thierry Gauthier ,  Christophe Chau ,  Denis Uzio ,  Isabelle Prevost

IPC: C07C7/144 ,  B01D53/22

CPC classification number: B01D53/864 ,  B01D53/229 ,  B01D2257/702 ,  C01B3/501 ,  C01B2203/0405 ,  C01B2203/047 ,  C01B2203/048 ,  C01B2203/0485 ,  C10G70/045

Abstract: In order to recover hydrogen from a hydrogen-rich gaseous effluent, a procedure is used that comprises: in a stage (a), bringing a hydrocarbon-rich gaseous effluent into contact with the upstream face of a hydrogen-selective membrane at a pressure P1; in a stage (b), bringing a flow containing one or more unsaturated compound(s) into contact with the downstream face of a membrane at a pressure P2, which is smaller than P1, in the presence of a catalyst, to hydrogenate at least a portion of the unsaturated compound(s) using at least a portion of the hydrogen that passes by permeation through the upstream face to the downstream face of the selective membrane; and in a stage (c), transporting a flow containing the hydrogenated compound(s) into stage (b).

Abstract translation: 为了从富氢气态流出物回收氢气，使用的方法包括：在阶段（a）中，使富含烃的气态流出物在压力P下与氢选择性膜的上游面接触 1; 在阶段（b）中，在催化剂存在下，使含有一种或多种不饱和化合物的流体以小于P 1的压力P 2与膜的下游面接触氢化 至少一部分所述不饱和化合物使用通过所述上游表面渗透到所述选择性膜的下游表面的氢的至少一部分; 在阶段（c）中，将含有氢化化合物的流输送到载物台（b）中。

公开(公告)号：US06582495B2

公开(公告)日：2003-06-24

申请号：US10067533

申请日：2002-02-07

Applicant: Christophe Chau ,  Isabelle Prevost ,  Jean-Alain Dalmon ,  Sylvain Miachon

Inventor： Christophe Chau ,  Isabelle Prevost ,  Jean-Alain Dalmon ,  Sylvain Miachon

IPC: B01D5322

CPC classification number: B01D67/0048 ,  B01D67/0051 ,  B01D71/028 ,  B01D2323/08 ,  B01J35/065 ,  B01J2229/64

Abstract: A process is described for preparing a supported zeolite membrane constituted by a composite continuous zeolite/support layer of controlled thickness, wherein the zeolitic phase is principally localized in the pores of a porous support and optionally on the external surface thereof, the process comprising at least the formation of a precursor gel of the zeolite, bringing the gel into contact with the support and crystallizing the zeolite. The zeolite is crystallized by carrying out a thermal program comprising at least three steps in succession: a first constant temperature stage carried out at a temperature in the range 50° C. to 300° C., cooling to a temperature of strictly less than 50° C. followed by a second constant temperature stage carried out at a temperature range of 50° C. to 300° C. The prepared membrane is used in particular in processes for separating gas or separating liquids.

Abstract translation: 描述了一种用于制备由受控厚度的复合连续沸石/支撑层构成的负载型沸石膜的方法，其中沸石相主要位于多孔载体的孔中并任选地位于其外表面上，该方法至少包括 形成沸石的前体凝胶，使凝胶与载体接触并使沸石结晶。 通过执行包括至少三个步骤的热程序使沸石结晶：第一恒温阶段在50℃至300℃的温度下进行，冷却至严格小于50℃的温度 ℃，然后在50℃至300℃的温度范围内进行第二恒温阶段。所制备的膜特别用于分离气体或分离液体的方法中。

公开(公告)号：US5914435A

公开(公告)日：1999-06-22

申请号：US936100

申请日：1997-09-23

Applicant: Christian Streicher ,  Isabelle Prevost

Inventor： Christian Streicher ,  Isabelle Prevost

IPC: C10G31/11 ,  C07C29/80 ,  C07C7/144

CPC classification number: C10G31/11 ,  Y10S203/20

Abstract: To reduce the benzene content of a hydrocarbon mixture that contains benzene and other hydrocarbons, the mixture is fed to a distillation column so as to separate an overhead distillate, a bottom residue, and a sidestream having a benzene content richer than in the distillate and in the residue; the resultant sidestream is sent to at least one permeation zone to permeate the benzene selectively and retain a retentate having a reduced content of benzene; and at least part of the retentate is recycled to at least one level in the distillation column, preferably two levels, one at above and one below the feedpoint to the column. The permeate benzene stream is optionally subjected to extractive distillation in order to increase the purity of the resultant benzene.

Abstract translation: 为了降低含有苯和其他烃类的烃混合物的苯含量，将该混合物加入蒸馏塔中以分离塔顶蒸馏物，底部残留物和具有比在馏出物中富含的苯含量更高的侧流， 残留物 所产生的侧流被送到至少一个渗透区域以选择性地渗透苯，并保留苯含量降低的滞留物; 并且至少部分滞留物在蒸馏塔中再循环至至少一个水平，优选在柱的进料点的上方和下方一个水平上优选两个水平。 渗透物苯流任选进行萃取蒸馏，以提高所得苯的纯度。