Distillation column utilizing structured packing having varying crimp angle

摘要: A distillation column for separating atmospheric gases in which structured packing having varying crimp angles is utilized within at least two sections or subsections of a single section column. In the case use multiple sections, angle used first greater than that second and selected such both operate same maximum design percentage flooding limit. The increased decreases HETP thereby allows reduced height. Structured different can be when subjected to possible variation vapor rate. Here are again manipulated so foregoing adaptation improves turndown performance.