Apparatus for gas wet treatment

• US 4,759,884 A
• Filed: 01/20/1987
• Issued: 07/26/1988
• Est. Priority Date: 01/20/1986
• Status: Expired due to Fees

• Current Assignee: Michimae Chikuru Kogyo Kabushiki Kaisha, The Brook Club Incorporated
• Original Assignee: MCK Kabushiki Kaisha, The Brook Club Incorporated
• Inventors: Onogi, Shozo, Michimae, Kiyoharu, Amamiya, Akira
• Primary Examiner(s): Miles, Tim
• Application Number:
  US07/005,257
• Time in Patent Office: 553 Days
• Field of Search: 261/113, 261/114.3
• US Class Current: 261/113
• CPC Class Codes: B01D 3/22 with horizontal sieve plates or grids; Construction of sieve plates or grids
• CPC Class Codes: B01F 23/215 by forcing the gas through absorbent pads containing the liquid

Abstract

An apparatus for gas wet-treatment which includes at least one perforated plate having a unique arrangement of round holes. The holes are provided with a cross-sectional area larger than about 1 cm² and a length of between 2 and 10 cm. The central axes of least some of the round holes have portions which meet the perforated plate at an acute angle. Gas is directed upwardly through the plate, while liquid proceeds in a downward direction to provide countercurrent contacting of the gas and the liquid.

Claims

1. An apparatus for gas-wet treatment, the apparatus comprising at least one perforated plate for countercurrent contacting of vapor and liquid within the apparatus, and means defining a multiplicity of round holes in said plate for distribution of vapor through the liquid, each of said round holes having a cross-sectional area larger than about 1 cm² and a length of from about 2 cm to about 10 cm, the central axes of at least some of said round holes having portions which meet said perforated plate at an accute angle, said holes being dimensioned so that under normal flow conditions, said liquid flows through each of said holes in an annular pipe-shaped stream having a rippled inner surface to thereby form a vapor passage along the central portion of the stream and to promote mixing of the vapor and the liquid, the configuration of said holes minimizing clogging of the perforated plate and avoiding an excessive pressure differential across the plate.

2. The apparatus as set forth in claim 1 wherein said perforated plate has a number of round holes each of which has a cross sectional area larger than about 1.5 cm² and a length of 4 up to 7 cm.