MULTISTAGE POROUS BUBBLE COLUMN

摘要

PROBLEM TO BE SOLVED: To obtain a multistage porous plate bubble column with good reaction efficiency, etc., by making a porous plate having nonuniform pores closely contact the inner wall of a column and making the ratio of the total pare area to the cross section of the bubble column of the porous plate to be a given value or less. SOLUTION: In a bubble column 6, three or more porous plates 3 having nonuniform pore distribution, even a plate having the same pare distribution is a plate having different pare distribution, are made to contact the inner wall of the column. In this process, the largest ratio of the total pare area to the cross section of the bubble column 6 of each porous plate 3 is made 15%. In the bubble column using such porous plates, back mixing is controlled, and mixing efficiency, reaction efficiency, etc., improve remarkably.