How to calculate the specific surface area of structured packing

The specific surface area of structured packings is usually indicated directly by their type. For example, in the specification model of corrugated structured packing, the number part represents the specific surface area value (in m²/m³), and the letters X and Y indicate that the ripple Angle is 30° and 45°, respectively. For example, a type 400X packing has a specific surface area of 400m²/m³1.

For other types of structured packings (such as holes, mesh, etc.), if the specific surface area is not directly marked by the model, it can be estimated by the following methods:

Geometric method: Calculate the surface area according to the geometric structure of the packing (such as the spacing of the corrugated sheet of the corrugated packing, the aperture, etc.);

Table lookup method: reference packing manual or professional database to obtain specific surface area data;

Measurement method: Using nitrogen adsorption method, water film method and other experimental means to determine 2.

It should be noted that the specific surface area of the structured packing is closely related to its corrugated Angle, material (such as metal, plastic) and hole structure, and it is recommended to select the appropriate model according to the specific working conditions in practical application or through experimental verification.