DISTILLATION

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To correctly cook and condition the material prior to Flaker. Vertical, multi-stage unit with fabricated shell and trays where heating is carried out by indirect steam. The gates operated by mechanical level system automatically control the flow of material and the level in each stage. A central shaft driven by a gearbox carried agitator blades to ensure a good mix, a homogenous treatment of the material and prevents burning on the stage bottoms. A vertical duct extracts exhaust vapors from each stage. Provision is made to adjust final moisture levels of the material by injecting water or direct steam.

 

SALIENT FEATURES

• The suction load data of each steam jet ejector is precisely calculated which ensures lowest possible consumption of steam, thus reduction in recurring expenses along with reduction in heat load on condensation system.
• Distillation is carried out in three stages of vacuum. There by achieving incremental concentration of miscella at predetermined rate. Further more each stage is differentiated by incorporation of precisely designed U type siphon pipe, eliminating the use of centrifugal pump. This ensures continuous flow of miscella, & reduces power consumption.
• Economizer is specially designed having built in flasher, which provides the compact design, Minimum plant space and reduction in unwanted piping. This design itself provides the high efficiency flashing which increase the miscella concentration up to 75%.
• The final stage striping is carried out in presence of steam under higher vacuum of 700 mmHg. This allows the lower temperature distillation and they’re by ensuring undamaged crude oil without color fixation.