Customer request:
Increasing the draw-off of the fourth vacuum side cut from column K-5 of the CDU/VDU-6 unit and improving its quality (reducing the colorimeter colour reading) while increasing the tar viscosity to approximately 300 mm²/s or higher,
Improving fractionation sharpness and optimising operation of the wash section in vacuum column K-5 of the CDU/VDU-6 unit.
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