Mass transfer equipment
for olefin recovery units
By Neil Sandford and Pat Quotson
The columns used for olefin separation are often referred to as splitters, more specifically C2, C3, and C4 splitters. C2 splitters often have more than 90-100 stages. C3 splitters usually have 150 to 200 stages. C4 splitters have between 60 and 90 stages.
Trays are most frequently used in these columns, but random packings have been used in smaller splitter towers.
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