Vacuum Booster Pumps: Cost Effective and Power Efficient

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To meet the process demand vacuum boosters of capacity 3000 m/hr were installed between the vessel and the condenser, as shown in figure (ref. Fig. 5). The booster was designed to handle super- heated steam at 2000C. The installation of booster was a simple operation, not demanding additional piping or auxiliary equipment.

Quick installation of the booster resulted in minimum down time. The system was put in operation and the following results were obtained:

Desired vacuum levels to the range of 755-758 mm of Hg was achieved.

Due to the vapour compression at the discharge, condenser efficiency increased allowing less stringent control on inlet water temperature.

Requirement of stripping stream was reduced substantially, since at lower vacuum levels higher specific volumes of steam were available for effective stripping.

With installation of vacuum booster between the vessel and the condenser, the cycle time was reduced thus it increased the plant capacity.

Concluding remarks

Installation of boosters would, in most of the vacuum distillation applications, yield tremendous success in achieving higher vacuums and pumping speeds, thereby increasing product quality and production rates at nominal additional power.

More on Vaccum Technology: Compressed Air/Vacuum Technology — Requirements Dictate System Design

* The article has been compiled on basis of actual field trials conducted by the technical cell of Everest Blowers.

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Vacuum Distillation

Vacuum Booster Pumps: Cost Effective and Power Efficient

Concluding remarks