Gas-liquid separator and super-critical fluid device

Patent metadata

Field	Value
Publication number	US-10585076-B2
Application number	US-201415510740-A
Country	US
Kind code	B2
Filing date	Sep 17, 2014
Priority date	Sep 17, 2014
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

A gas-liquid separator according to an embodiment of the present invention separates a mobile phase containing a gas and a liquid into a gas and a liquid. The gas-liquid separator according to the embodiment of the present invention includes an introduction flow channel to which a mobile phase is introduced, and a plurality of discharge flow channels connected to the introduction flow channel. A gas and a liquid are discharged from a discharge port of the discharge flow channel.

First claim

The invention claimed is:

1. A gas-liquid separator that separates a mobile phase containing a gas and a liquid into a gas and a liquid, the gas-liquid separator comprising:
an introduction flow channel to which a mobile phase is introduced; and
a plurality of discharge flow channels connected to the introduction flow channel,
wherein from a discharge port of the plurality discharge flow channels, discharges a gas and a liquid and separates the gas and the liquid after discharge; and
further comprising a liquid collecting member having an outer wall surface on which a liquid discharged from the discharge port of the discharge flow channel moves while being adhered thereto.

2. The gas-liquid separator according to claim 1 , wherein the liquid collecting member has a cylindrical shape or a cone shape.

3. The gas-liquid separator according to claim 1 , wherein
at least a part of the discharge flow channel is formed within the liquid collecting member, and
the discharge port of the discharge flow channel is formed on the outer wall surface of the liquid collecting member.

4. The gas-liquid separator according to claim 1 , wherein an internal diameter of the discharge flow channel is 2 mm or less.

5. The gas-liquid separator according to claim 1 , wherein the discharge flow channel is vertically arranged.

6. A super-critical fluid device comprising a pump, a back pressure regulator, and the gas-liquid separator according to claim 1 , wherein
a mobile phase containing a liquid and a super-critical fluid or a liquefied gas is fed by the pump, and a mobile phase having passed through the back pressure regulator is introduced into the gas-liquid separator.

7. The super-critical fluid device according to claim 6 , wherein between the back pressure regulator and the gas-liquid separator, a cooler is connected.

8. The super-critical fluid device according to claim 7 , wherein the cooler has an orifice.

9. The super-critical fluid device according to claim 7 , further comprising:
a sample injector connected between the pump and the back pressure regulator;
a column connected between the sample injector and the back pressure regulator; and
a detector connected between the column and the back pressure regulator.

10. The super-critical fluid device according to claim 9 , further comprising:
a temperature detector for detecting a temperature of a mobile phase immediately before being introduced into the gas-liquid separator, a temperature of the cooler, or a temperature of the gas-liquid separator; and
a control unit which causes the sample injector to operate upon determining that a result of monitoring of a temperature detected by the temperature detector becomes a specified value or below.

Assignees

• Shimadzu Corp

Inventors

• Goto Hiroomi
• KAJIYAMA Risa
• Mori Takahiro

Classifications

• B01D19/0042

  modifying the liquid flow (B01D19/0021 takes precedence) · CPC title

• B01D19/00

  Degasification of liquids · CPC title

• G01N30/02

  Column chromatography · CPC title

• G01N30/80 Primary

  Fraction collectors · CPC title

• B01D15/40

  using supercritical fluid as mobile phase or eluent · CPC title