Patent Number: 6,254,667

Title: Method of treating carbon dioxide-containing gas and apparatus therefor

Abstract: The apparatus of the present invention includes an inverted J-shaped pipe disposed under the sea and including shorter and longer open end portions, and a connecting portion joining them such that the shorter and longer portions extend downward from connecting portion to their respective open ends. An injector nut injecting the carbon dioxide-containing gas into a portion of said short pipe adjacent to said first open end into said shorter pipe. An accumulator is in fluid communication with the connecting portion for collecting gas, which remains undissolved in the seawater during the passage of the carbon dioxide-containing gas through said shorter pipe. According to the method of the invention, the injection of the carbon dioxide-containing gas forces the seawater to enter into first open end, to flow upward together with the carbon dioxide-containing gas through the shorter pipe portion, to flow downward through the longer pipe portion and to be discharged from the second open end, with the carbon dioxide being dissolved in the seawater during the passage of the carbon dioxide-containing gas through the shorter pipe portion, so that the seawater discharged from the second open end contains carbon dioxide dissolved therein.

Inventors: Saito; Takayuki (Tsukuba, JP), Kajishima; Takeo (Toyonaka, JP), Tsuchiya; Katsumi (Tokushima, JP)

Assignee: Director-General of Agency of Industrial Science and Technology

International Classification: B01D 53/14 (20060101); B01F 3/04 (20060101); B01F 3/08 (20060101); B01F 5/04 (20060101); B01D 019/00 ()

Expiration Date: 07/03/2018