Columns with two diameters
Columns with two diameters
(OP)
Hi every body,
Regarding the distilation cloumns, Why most of the demethanser and Deethanizer has two diameters, for exampel the de-ethanizer has bigger diameter at the bottom and smaller one at the top, vise versa for De-c1.
Thanks and regards
Regarding the distilation cloumns, Why most of the demethanser and Deethanizer has two diameters, for exampel the de-ethanizer has bigger diameter at the bottom and smaller one at the top, vise versa for De-c1.
Thanks and regards





RE: Columns with two diameters
RE: Columns with two diameters
If you complicate the issue with multiple feeds and take-offs then the analysis becomes more complicated but the principle is the same.
Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com
RE: Columns with two diameters
RE: Columns with two diameters
1)drawn off from and/or
2)reboiled& fed back into.
the main distillation column thus the requirement of mass transfer intimate contact surface area greatly varies; and consequently the column diameters.
Best Regards
Qalander(Chem)
RE: Columns with two diameters
The amount of vapour above the feed or the top of a mixed NGL liquids stream de-ethanizer is small. In a gas plant where ther is only a de-ethanizer, the amount of methane and etahne vapours above the feed is very high.