The AMISTCO improved pall ring (AIPR) allows greater capacity, lower pressure drop, and even and thorough gas and liquid bed distribution. It is suitable for a wide range of applications, including gas dehydration, demethanizing, tall oil fractionating, CO2/H2S removal, high-vacuum distillation and vacuum crude stills. Although similar in outward appearance to Pall rings, AIPR packing offers more interior surface due to more twists and bends in the internal geometry. The manufacturer claims this geometric configuration creates greater gas/liquid contacting and 25–30% more transfer points per cubic foot than standard Pall rings. The AIPR’s high-strength geometry makes it well-suited for deep beds. The packing is available in a wide range of metal and alloy materials.
