Advantages and Applications of Ceramic Corrugated Packing
2023-09-13
Ceramic corrugated packing is a new type of structured packing composed of many packing units with the same geometric shape. Due to the unique structure of ceramics and its good hydrophilic properties, its surface can form a very thin turbulent liquid film, and the inclined and tortuous channels of the airflow can promote airflow without blocking it, making ceramic packing comparable to metal packing. Moreover, its corrosion resistance and high-temperature resistance cannot be matched by metal packing. The surface structure has good wettability, which accelerates liquid flow and minimizes liquid holdup in the packing, thereby reducing the chances of overheating, polymerization, and coking.
Ceramic corrugated packing has the following major advantages:
High throughput: New tower designs can reduce tower diameter, and old tower retrofits can significantly increase processing capacity;
High separation efficiency: Much larger specific surface area compared to random packing;
Low pressure drop: Can save a large amount of energy, offers great operational flexibility, and has no obvious scale-up effect;
Suitable for various tower diameters;
Strong resistance to acids and alkalis, especially corrosion from H2S and naphthenic acid chloride ions.
Ceramic corrugated packing is mainly used in:
Distillation of halogenated organic compounds
Distillation, absorption, and other processes of corrosive mixtures with strict requirements on pressure drop and theoretical plate number.
Towers with large amounts of inherently corrosive media such as sulfuric acid absorption, nitric acid concentration, and fertilizer plant gas purification.
Vacuum operations starting from an absolute pressure of 100 Pa.
Used as heat exchangers, demisters, or catalyst carriers, etc.
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