Gas-liquid contact plate and gas-liquid contactor

• US 20020178925A1
• Filed: 01/02/2002
• Published: 12/05/2002
• Est. Priority Date: 04/11/2001
• Status: Abandoned Application

• Current Assignee: Kansai Electric Power Company Incorporated, Mitsubishi Heavy Industries, Ltd.
• Original Assignee: Kansai Electric Power Company Incorporated
• Inventors: Yoshizumi, Naoyuki, Mimura, Tomio, Yoshiyama, Ryuji, Iwasaki, Kenji, Ohira, Hiroshi, Nojo, Takashi
• Application Number:
  US10/032,554
• Publication Number:
  US 20020178925A1
• Time in Patent Office: Days
• US Class Current: 96/299
• CPC Class Codes: B01D 3/16 Fractionating columns in which vapour bubbles through liquid packing elements B01J19/30, B01J19/32
• CPC Class Codes: B01D 53/185 Liquid distributors
• CPC Class Codes: B01J 19/32 Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
• CPC Class Codes: B01J 2219/3221 Corrugated sheets
• CPC Class Codes: B01J 2219/32227 Vertical orientation
• CPC Class Codes: B01J 2219/32237 Sheets comprising apertures or perforations
• CPC Class Codes: B01J 2219/32408 Metal
• CPC Class Codes: B01J 2219/328 Manufacturing aspects
• CPC Class Codes: B01J 2219/3288 Punching
• CPC Class Codes: B01J 2219/3325 Counter-current flow
• CPC Class Codes: Y10T 29/496 Multiperforated metal article making

Abstract

The gas-liquid contact plate is constructed so that a plurality of straight rows are provided; irregularities are formed over both surfaces of the plate at equal intervals in the row; the adjacent rows have repeated irregularities opposite to each other; and in a peak or valley portion of the irregularities, there is formed an opening connecting the surface to the back surface between the adjacent rows. There is provided a gas-liquid contact plate that has high wettability, being capable of improving the gas-liquid contact efficiency, and is light in weight and advantageous in terms of manufacturing cost.

Claims

1. A gas-liquid contact plate in which a plurality of straight rows are provided;

irregularities are formed over both surfaces of the plate at equal intervals in said row;

the adjacent rows have repeated irregularities opposite to each other; and

in a peak or valley portion of said irregularities, there is formed an opening connecting the surface to the back surface between the adjacent rows.

2. The gas-liquid contact plate according to claim 1, wherein wavy irregularities are formed over both surfaces of the plate at equal intervals in said row, and said wavy irregularities of the adjacent rows have a substantially opposite phase at the equal period.

3. The gas-liquid contact plate according to claim 1 or 2, wherein one or two or more flat plate portions without irregularities are formed almost perpendicularly to said straight rows.

4. A gas-liquid contactor in which the gas-liquid contact plate according to claim 1 or 2 are provided substantially in parallel with the flow of a gas, and a liquid supplied from the upper part toward the lower part flows down along the surface of said gas-liquid contact plate and comes into contact with the gas supplied from the lower part.

5. The gas-liquid contactor according to claim 4, wherein the gas is an exhaust gas containing carbon dioxide;

the liquid is a carbon dioxide absorbing solution; and

carbon dioxide in the exhaust gas is absorbed and removed by the contact of said exhaust gas with said carbon dioxide absorbing solution.