The high pressure dryer comprises of three columns. The first column is filled with packing to avoid any void and for proper mixing and the second and third are filled with anhydrous calcium chloride. It is solid and improves performance. It is very imperative that the high-pressure drier is fully filled up with Calcium Chloride, as any void in high-pressure area is against the required safety. It must be ensured that acetylene high pressure drier is of high quality and meets the international quality standards.