Tray for a mass-transfer column

Patent metadata

Field	Value
Publication number	US-11033831-B2
Application number	US-201816496856-A
Country	US
Kind code	B2
Filing date	Mar 15, 2018
Priority date	Mar 22, 2017
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

A tray for a mass-transfer column permits contact between a liquid phase and a gas phase. The tray may comprise a tray feed via which the tray is charged with the liquid phase, a tray drain via which the liquid phase drains from the tray, and first guide means for guiding the liquid phase where the first guide means forms a first course path along which the liquid phase flows from the tray feed to the tray drain, enabling contact with the gas phase. A second guide means may form a second course path overlapping with the first course path, which leads from an inlet to an outlet. The first guide means may have at least two partial concentric paths. Temperature-control fluid may flow along the second course path in at least one of the at least two partial paths opposite the flow direction of the liquid phase.

First claim

What is claimed is:

1. A tray for a mass-transfer column, wherein the tray is configured to enable contact between a liquid phase and a gas phase, the tray comprising:
a tray feed via which the tray is charged with the liquid phase;
a tray drain via which the liquid phase drains from the tray;
first guide means for guiding the liquid phase, wherein the first guide means forms a first course path along which the liquid phase flows from the tray feed to the tray drain, the first course path having at least two partial paths that are arranged concentrically relative to one another and that each extend as a partial circular path;
an inlet for a temperature-control fluid;
an outlet for the temperature-control fluid; and
second guide means for guiding the temperature-control fluid for a heat exchange with the liquid phase, wherein the second guide means forms a second course path overlapping with the first course path, which leads from the inlet to the outlet, wherein the temperature-control fluid flows along the second course path in at least one of the at least two partial paths in a direction opposite a flow direction of the liquid phase.

2. The tray of claim 1 wherein the tray feed comprises a first entry that is disposed at an edge of the tray, wherein the tray drain comprises a first exit that is disposed in a center of the tray, wherein the first guide means comprises concentrically arranged conducting weirs that form the first course path.

3. The tray of claim 1 wherein the liquid phase flows in a first of the at least two partial paths along a rotational direction and in a second of the at least two partial paths in a direction opposite the rotational direction.

4. The tray of claim 1 wherein the second guide means for guiding the temperature-control fluid forms the second course path having a plurality of individual paths arranged concentrically to one another and each extending as a partial circular path.

5. The tray of claim 1 wherein the inlet and the outlet for the temperature-control fluid are disposed along a longitudinal axis intersecting a center of the tray, which divides the tray into a first section and a second section.

6. The tray of claim 1 wherein the second guide means for guiding the temperature-control fluid forms the second course path having a plurality of individual paths arranged concentrically to one another and each extending as a partial circular path, wherein the inlet and the outlet for the temperature-control fluid are disposed along a longitudinal axis intersecting a center of the tray, which divides the tray into a first section and a second section, wherein the inlet and the outlet for the temperature-control fluid are positioned offset by 180° relative to one another, wherein the plurality of individual paths of the second course path provided in the first section of the tray guide the temperature-control fluid only in a rotational direction, wherein the plurality of individual paths of the second course path provided in the second section of the tray guide the temperature-control fluid only in the direction opposite the rotational direction.

7. The tray of claim 1 wherein the tray feed comprises a first entry that is disposed at an edge of the tray, wherein the tray drain comprises a first exit that is disposed in a center of the tray, wherein the first guide means comprises at least three concentrically arranged conducting weirs that form the first course path having at least three partial paths linked to one another therein, wherein the inlet and the outlet for the temperature-control fluid are disposed along a longitudinal axis intersecting a center of the tray, which divides the tray into a first section and a second section, wherein the liquid phase passes through the at least three partial paths and changes its flow direction with each transition between two of the at least three partial paths by 180°.

8. The tray of claim 1 wherein the tray feed comprises a first entry that is disposed at an edge of the tray, wherein the tray drain comprises a first exit that is disposed in a center of the tray, wherein the first guide means comprises concentrically arranged conducting weirs that form the first course path, wherein the inlet and the outlet for the temperature-control fluid are disposed along a longitudinal axis intersecting a center of the tray, which divides the tray into a first section and a second section, wherein the tray feed comprises a second entry that is disposed at the edge of the tray, wherein the tray drain comprises a second exit that is disposed in the center of the tray, wherein the first entry and the first exit are located in the first section of the tray, wherein the second entry and the second exit are located in the second section of the tray, wherein the first guide means comprises at least three second conducting weirs that are positioned in the second section of the tray and form the first course path therein having at least three partial paths linked to one another, wherein the at least three partial paths extend concentrically, wherein the liquid phase passes through the at least three partial paths and changes its flow direction by 180° with each transition between two of the at least three partial paths.

9. The tray of claim 1 wherein the inlet and the outlet for the temperature-control fluid are disposed along a longitudinal axis intersecting a center of the tray, which divides the tray into a first section and a second section, wherein the first guide means comprises a separating weir arrangement positioned along the longitudinal axis, which separates the liquid phase in the first section and the liquid phase in the second section.

10. The tray of claim 1 wherein the inlet and the outlet for the temperature-control fluid are disposed along a longitudinal axis intersecting a center of the tray, which divides the tray into a first section and a second section, wherein the second guide means for guiding the temperature-control fluid forms the second course path having a plurality of individual paths arranged concentrically to one another and each extending as a partial circular path, wherein the at least two partial paths formed by the first guide means and the plurality of individual paths are substantially semicircular paths.

11. The tray of claim 10 wherein the second guide means for guiding the temperature-control fluid forms the second course path having the plurality of individual paths arranged concentrically to one another, wherein the inlet and the outlet for the temperature-control fluid are disposed along the longitudinal axis, wherein the inlet and the outlet for the temperature-control fluid are positioned offset by 180° relative to one another, wherein the plurality of individual paths of the second course path provided in the first section of the tray guide the temperature-control fluid only in a rotational direction, wherein the plurality of individual paths of the second course path provided in the second section of the tray guide the temperature-control fluid only in the direction opposite the rotational direction, wherein a flow direction of the liquid phase changes by 180° with each transition between two of the at least two partial paths.

12. The tray of claim 11 wherein the flow direction of the liquid phase changes at least twice by 180° in each of the first section and the second section.

13. The tray of claim 1 wherein the second guide means is configured as pipelines that are positioned for contact with the liquid phase and that extend parallel to the first course path.

14. The tray of claim 1 configured as a screen tray, a valve tray, a bell tra

Assignees

• Thyssenkrupp Ind Solutions Ag
• Thyssenkrupp Ag

Inventors

• Minne Pascal
• Honecker Horst

Classifications

• B01D3/166 Primary

  Heating and/or cooling of plates · CPC title

• B01D53/185

  Liquid distributors · CPC title

• B01D3/16 Primary

  Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32) · CPC title

• B01D3/22

  with horizontal sieve plates or grids; Construction of sieve plates or grids · CPC title