Fluid separation apparatus comprising fluid separation membrane, and fluid separation membrane module

A fluid separation apparatus comprising a fluid separation membrane extending in one direction and having a cross-section with a closed curve shape, wherein the fluid separation membrane has a thickness of 0.1 mm to 2 mm, and an outer diameter of 60 mm to 360 mm when the cross-section is adjusted to be circular, wherein the fluid separation membrane comprises a plurality of surface recesses and protrusions and a plurality of internal pores and does not comprise a complete opening that penetrates a surface and the other surface of the fluid separation membrane in a thickness direction.

A fluid separation apparatus comprising a fluid separation membrane extending in one direction and having a cross-section with a closed curve shape, wherein the fluid separation membrane has a thickness of 0.1 mm to 2 mm, and an outer diameter of 60 mm to 360 mm when the cross-section is adjusted to be circular, wherein the fluid separation membrane comprises a first tubular separation membrane and a second tubular separation membrane inserted into the first separation membrane to overlap the first separation membrane.