Uploaded December 2016 | Updated September 2026, 2 days ago

---

During the shutdown process, columns are brought back to atmos-pheric conditions. The most important thing to consider when doing so is vapor rate, as you don’t want to exceed the design of the column. Learn more about pressurizing and depressurizing a column with AIChE’s Distillation Technology for Operators course, aiche.org/ela113