| 摘要 |
The present invention relates to a separating device using membranes. According to the present invention, a substance a user wants to separate can be separated in a highly selective manner by using a separation membrane having a small area; thus, efficiency and economic properties of a process can be outstandingly enhanced. The separating device using membranes includes: a first separation membrane through which supply flow, divided into a first penetration flow passing through the first separation membrane, and a first non-penetration flow that does not pass through the first separation membrane, is discharged; and a second separation membrane through which the first non-penetration flow, divided into a second penetration flow passing through the second separation membrane, and a second non-penetration flow that does not pass through the second separation membrane, is discharged. Selectivity and permeability of the first separation membrane and the second separation membrane are different from each other. |
