SYSTEM AND PROCESS FOR AN ACTIVE DRAIN FOR GAS-LIQUID SEPARATORS
    1.
    发明申请
    SYSTEM AND PROCESS FOR AN ACTIVE DRAIN FOR GAS-LIQUID SEPARATORS 有权
    气液分离器主动排水系统及工艺

    公开(公告)号:US20130180404A1

    公开(公告)日:2013-07-18

    申请号:US13825128

    申请日:2011-09-20

    IPC分类号: B01D19/00

    摘要: An apparatus and process to effectively create an active drain for high and low pressure gas-liquid separator. The invention accomplishes a deterministic drainage rate of variable volume and viscosity liquid fractions from the separator. The mechanisms and methods thereof create a flow path from the separator that dramatically favors controlled liquid flow over a wide range of flow rates and viscosities while restricting gas flow. The invention is a superior method of drainage over conventional systems that employ pressure, vacuum, isolation valves and/or passive flow restrictors to achieve drainage of the separators. The embodiments are primarily directed to the fields of preparative supercritical fluid chromatography (SFC) and supercritical fluid extraction (SFE). An advantage of one embodiment allows the economical conversion of typical HPLC systems to state of-the-art supercritical fluid chromatography (SFC) systems with minimal modification to system components.

    摘要翻译: 一种有效地创建高压和低压气液分离器的主动排水的装置和方法。 本发明实现了来自分离器的可变体积和粘度液体馏分的确定性排水速率。 其机制和方法从分离器产生流动路径,其在限制气体流动的同时显着地有利于在宽范围的流速和粘度下控制的液体流动。 本发明是采用压力,真空,隔离阀和/或被动流量限制器以实现分离器排水的常规系统的优选排水方法。 实施方案主要涉及制备型超临界流体色谱(SFC)和超临界流体萃取(SFE)领域。 一个实施方案的优点允许将典型的HPLC系统经济地转化为现有技术的超临界流体色谱(SFC)系统,同时对系统组分进行最小的修改。

    Rapid sample collection in supercritical fluid chromatography
    3.
    发明授权
    Rapid sample collection in supercritical fluid chromatography 有权
    超临界流体色谱快速采样

    公开(公告)号:US06632353B2

    公开(公告)日:2003-10-14

    申请号:US10113599

    申请日:2002-03-29

    IPC分类号: B01D1508

    摘要: A process and device for chromatography, such as preparative and analytical supercritical fluid chromatography, or supercritical fluid extraction for a liquid phase SFC collection system that separates and retains eluted components from sample injections. The process efficiently separates liquid and gas phases in the flow stream upstream of a collection vessel and without additional pressure schemes or solvent extractions imposed on the flowstream. Sample fractions are collected from sample component concentration peaks based upon the chromatographic elution of the sample components. Samples are repeatedly the injected into the mobile phase flow stream and collected into large volume collection containers, thereby allowing longer unattended run times and cost-efficient sample purification and recovery.

    摘要翻译: 用于层析的方法和装置,例如制备和分析超临界流体色谱法或用于液相SFC收集系统的超临界流体萃取,其从样品注射中分离并保留洗脱的组分。 该方法有效地分离收集容器上游的流动流中的液相和气相,而没有施加在流动流上的额外的压力方案或溶剂萃取。 基于样品组分的色谱洗脱,从样品组分浓度峰中收集样品级分。 将样品重复注入流动相流中并收集到大容量收集容器中,从而允许更长的无人值守运行时间和经济高效的样品纯化和回收。

    Converting a pump for use in supercritical fluid chromatography
    4.
    发明授权
    Converting a pump for use in supercritical fluid chromatography 无效
    转换泵用于超临界流体色谱

    公开(公告)号:US06561767B2

    公开(公告)日:2003-05-13

    申请号:US09918436

    申请日:2001-08-01

    IPC分类号: F04B1924

    摘要: A method for converting a pump for use in a flow stream containing a mixture of highly compressed gas, compressible liquid or supercritical fluid wherein the pump delivers a compressible fluid against a back-pressure regulator which in turn delivers a controllable flow rate downstream of the regulator without performing variable compressibility compensation adjustments on the pump. By using a pressurized source of compressible fluid combined with isocratic conditions, the delivery pressure from the pump is controlled at a rate higher than the downstream gradient with the back-pressure regulator, and an inexpensive pump may be used in place of specialized, expensive pumps and compressibility compensation systems for use in stems operating at or near supercritical fluid levels of compressible fluids. Significant capital and operating laboratory costs are saved through a simpler and cheaper system for accurately delivering compressible fluids into mobile phase flow streams.

    摘要翻译: 一种用于转换用于包含高压缩气体,可压缩液体或超临界流体的混合物的流动流的泵的方法,其中所述泵将可压缩流体递送抵靠背压调节器,所述背压调节器又传递调节器下游的可控流量 不对泵进行可变的压缩补偿调整。 通过使用与等度条件相结合的可压缩流体的加压源,来自泵的输送压力以比背压调节器高的下游梯度的速度被控制,并且可以使用廉价的泵来代替专门的,昂贵的泵 以及用于在可压缩流体的超临界流体水平处或附近操作的茎中的压缩性补偿系统。 通过更简单和更便宜的系统节省大量资本和操作实验室成本,将可压缩流体精确传递到流动相流动流中。

    Apparatus and method for preparative supercritical fluid chromatography
    5.
    发明授权
    Apparatus and method for preparative supercritical fluid chromatography 有权
    制备超临界流体色谱仪的设备和方法

    公开(公告)号:US06413428B1

    公开(公告)日:2002-07-02

    申请号:US09607316

    申请日:2000-06-26

    IPC分类号: B01D1508

    摘要: A fractionated sample collection process and device having at least one pressurized chamber used to gather and store liquid samples generated from a flow stream containing a mixture of highly compressed gas, compressible liquid, or supercritical fluid and a relatively incompressible liquid. A bank of multiple collection chambers is secured together in a frame to form a cassette unit. Each collection chamber may house a replaceable liner such as a test tube vial, to hold a fractionated liquid phase sample. After filling with sample, a collection chamber is returned to a clean state and ready for refilling with a new sample by manually or automatically replacing the liner.

    摘要翻译: 分级样品收集过程和装置具有至少一个加压室,用于收集和储存从含有高度压缩气体,可压缩液体或超临界流体和相对不可压缩液体的混合物的流动流产生的液体样品。 多个收集室的一组在框架中固定在一起以形成盒单元。 每个收集室可以容纳诸如试管小瓶的可更换的衬里,以容纳分馏的液相样品。 填充样品后,收集室返回到清洁状态,并通过手动或自动更换衬垫,准备用新样品进行再填充。

    High efficiency packed column supercritical fluid chromatography
    7.
    发明授权
    High efficiency packed column supercritical fluid chromatography 失效
    高效填充柱超临界流体色谱

    公开(公告)号:US5340476A

    公开(公告)日:1994-08-23

    申请号:US78802

    申请日:1993-06-17

    摘要: A method and device are disclosed for performing supercritical fluid chromatography in packed columns of at least about 0.5 mm inside diameter. The column provides at least 50,000, preferably at least 100,000, theoretical plates with pressure drop across the column of at least 25 bar. The outlet pressure is controlled by the back pressure regulator. The column may comprise a plurality of individual columns in series. Separation is performed at a rate of at least 25 plates/min, preferably at least 100 plates/min.

    摘要翻译: 公开了用于在至少约0.5mm内径的填充柱中进行超临界流体色谱的方法和装置。 该柱提供至少50,000个,优选至少100,000个理论塔板,压力塔跨过至少25巴。 出口压力由背压调节器控制。 该柱可以包括串联的多个单独的列。 以至少25张/分钟,优选至少100张/分钟的速率进行分离。

    Supercritical fluid chromatography
    8.
    发明授权
    Supercritical fluid chromatography 失效
    超临界流体色谱

    公开(公告)号:US4962662A

    公开(公告)日:1990-10-16

    申请号:US377420

    申请日:1989-07-10

    申请人: Terry A. Berger

    发明人: Terry A. Berger

    摘要: In a system for analyzing a chemical sample by chromatographic separation of said sample into components a method and apparatus are provided for maximizing detector resolution and minimizing duration by maintaining the linear velocity of the mobile phase at a desired level by affecting the viscosity and density characteristics of the mobile phase as it passes through a restrictor by programming the restrictor temperature.

    摘要翻译: 在用于通过色谱分离所述样品到组分中分析化学样品的系统中,提供了一种方法和装置,用于通过将流动相的线速度维持在期望的水平来使检测器分辨率最大化并使其持续时间最小化,从而影响粘度和密度特性 流动相通过节流器温度的编程而通过限流器。

    System and process for an active drain for gas-liquid separators
    9.
    发明授权
    System and process for an active drain for gas-liquid separators 有权
    气液分离器主动排水系统及工艺

    公开(公告)号:US09114330B2

    公开(公告)日:2015-08-25

    申请号:US13825128

    申请日:2011-09-20

    IPC分类号: B01D19/00 B01D15/10 B01D15/40

    摘要: A device includes a gas-liquid separator that receives and separates a biphasic pressurized flow stream and delivers flow to at least one exit port enriched in vapor phase composition and at least one exit port enriched in liquid phase composition. The device further includes a low restriction inlet conduit in communication with the separator exit port enriched in liquid phase composition, and a positive displacement pump having an inlet port in communication with the inlet conduit to receive flow from the gas-liquid separator and an outlet port in communication with an outlet conduit.

    摘要翻译: 一种装置包括气 - 液分离器,其接收和分离两相加压流,并将流量输送至至少一个富含气相组成的出口和至少一个富含液相组成的出口。 该装置还包括与富含液相组合物的分离器出口连通的低限制入口导管,以及容积式泵,其具有与入口导管连通的入口端口,以接收来自气液分离器的流动和出口端口 与出口导管连通。

    Low noise back pressure regulator for supercritical fluid chromatography
    10.
    发明授权
    Low noise back pressure regulator for supercritical fluid chromatography 有权
    用于超临界流体色谱的低噪音背压调节器

    公开(公告)号:US08419936B2

    公开(公告)日:2013-04-16

    申请号:US12730223

    申请日:2010-03-23

    IPC分类号: B01D15/08

    摘要: A drive mechanism for back pressure regulator used in liquid chromatography, supercritical fluid chromatography, or supercritical fluid extraction allows very fine automated control over a very wide range of pressures by combining a linear actuator compressing a spring, pushing a pin. The nozzle assembly of the regulator comprises a flow through chamber containing a diaphragm and a seat, in which the pin pushes the diaphragm against the seat, together with an upstream pressure sensor and electronic feedback control to the motor of the actuator. The BPR of the embodiments exhibits high pressure stability and extremely low pressure noise, even at moderate to high pressures. The exemplary BPR can be use at either constant pressure or to generate pressure programs where the pressure is varied versus time. Further, the nozzle assembly has a field-replaceable head, requiring no mechanical adjustment on replacement.

    摘要翻译: 用于液相色谱,超临界流体色谱或超临界流体萃取的背压调节器的驱动机构通过组合压缩弹簧的线性致动器,推动销,可以在非常宽的压力范围内进行非常精细的自动化控制。 调节器的喷嘴组件包括流通室,其包含隔膜和座,其中销将隔膜压靠在座上,以及上游压力传感器和电子反馈控制到致动器的电动机。 实施例的BPR表现出高压稳定性和极低压力噪声,即使在中等至高压下。 示例性BPR可以在恒定压力下使用或产生压力程序,其中压力随时间变化。 此外,喷嘴组件具有现场可更换头部,在更换时不需要机械调节。