Exploration of Optimization Method for Blocking in the First Butadiene Extraction
At a certain temperature and pressure,the first extraction system of the butadiene extraction unit is prone to generating butadiene polymers due to the presence of trace oxygen and high concentration of butadiene,which can clog the tray,downcomer,pipeline,reboiler and other parts,affecting the normal production of the unit.Based on the main factors and mechanisms of polymer generation,and combined with the daily operation of this unit,optimization discussions are conducted from the aspects of controlling the oxygen content of the first extraction system,maintaining long-term stability of gas-liquid equilibrium,controlling the composition of raw materials,adding inhibitors that can slow down the activity of free radicals,and adding defoamers.This provides certain guiding significance for the long-term stable operation of the first extraction system.
the first extraction systemblockageoxygen contentpolymerization inhibitordefoamerssmooth operation
万方数据
维普
