Advantages of structured packing
2022-09-23
Although the geometric structure of Structured Packing and the arrangement in the column are different, they have in common that the gas and liquid passages and the contact mass transfer mode of the same structure are artificially specified; the porosity and the effective contact surface area are increased; the two phases are strengthened. lateral mixing; reduce wall flow and channeling phenomena, etc. In this way, structured packing significantly overcomes the amplification effect and effectively improves the separation efficiency and throughput. It and random packing have different lengths and weaknesses, and each has its own scope of application, which together form a packing series with strong applicability and wide separation performance. In the development of the combination with the plate column, the packed column has more remarkable advantages. Column packing is the basic element of gas-liquid contact mass transfer in packed columns. The structured packing forms numerous mass transfer units with the same structure and spatial symmetry in the whole packed tower. The structure of the unit cell determines the gas-liquid two-phase flow mode and the contact mass transfer condition. To this end, structured packings are classified according to their basic structural characteristics. Corrugated structured packing is currently the best and most widely used structured packing. According to the structure, it can be divided into two categories: vertical corrugated type and horizontal corrugated type. The metal wire mesh corrugated packing is a disc-shaped packing composed of several parallel and in-line metal corrugated meshes. The corrugated mesh is the element that constitutes the corrugated packing of the wire mesh.
