What is the number of columns in a vapor phase unit, including the propane removal tower, ethane removal tower, and crude and refined propylene towers?
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What is the number of columns in a vapor phase unit, including the propane removal tower, ethane removal tower, and crude and refined propylene towers? According to GB30251-2013 – Limits on energy consumption per unit of product in oil refining, Appendix B: Three-column, four-column, five-column, and six-column processes for gas fractionation – how many columns are there in these processes? Here, is the propylene column considered one column or two columns?
How does your factory calculate it? Could you explain in detail?
So, in the four-tower process, which towers are those? What about the 5, 6 tower process?
The four-tower process includes light and heavy C4 separation towers, while the five-tower process also has a pentane removal tower.
This post was last edited by husnow on 2016-2-6 at 13:36. Add a tower for the separation of ethylene and ethane; six towers in total.