A method of separating an oligomerization reactor effluent, comprising:
flashing the oligomerization reactor effluent into a liquid portion and a
vapor portion, distilling the liquid and the vapor portions of the
oligomerization reactor effluent and recovering an oligomerization
product stream. A system for separating an oligomerization reactor
effluent comprising liquid and vapor portions: a vapor/liquid separator
to flash the oligomerization reactor effluent into a vapor portion and a
liquid portion, and a distillation column in fluid communication with the
vapor/liquid separator, wherein the distillation column has a side draw
for withdrawing an oligomerization product stream and receives as
separate feeds the vapor portion and the liquid portion from the
vapor/liquid separator.