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In late February, Sino-Korea Petrochemical's daily output of ethylene reached 2,800 tons, a new high, helping the company to continue to tackle tough problems and create profits
At the end of last year, the "leading" ethylene plant of Sino-Korean petrochemical and chemical sector completed a comprehensive overhaul and put into a new cycle of production
At the end of last year, the "leading" ethylene plant of Sino-Korean petrochemical and chemical sector completed a comprehensive overhaul and put into a new cycle of production
At present, the new cold box for the reconstruction and expansion of the device has not been put into use, and increasing the output brings great challenges to the operation of the cryogenic separation system
.
During the increase period, the high-load operation of the pre-demethanizer led to excessive C3, resulting in serious loss of propylene in the ethylene tower reactor
.
For this purpose, the device finely adjusts the top temperature of the C3 scrubber and the reflux tank of the high-pressure depropanizer, optimizes the load, and minimizes the loss of diene
.
At the same time, the amount of refrigerant in the pre-cooling system is adjusted, and the load of the expansion and recompressor is transferred to the cold box, so as to avoid the overload operation of the unit and improve the operation stability and economy of the device
.
