Hybrid Distillation

Hybrid Wiped Film/Fractional Still Systems

Customized Hybrid Fractionating Column systems expertly combine the multi-plate efficiency of fractional columns with the gentle reboiling effect of Wiped-Film Evaporators. This proven Hybrid technology excels in the purification of heat-sensitive materials that are similar in volatility and would be challenging to separate using conventional methods. Available in glass, stainless steel, or alternative alloys, these systems can be configured from lab to pilot plant skid systems, and up to full production process scales. Pope designs and builds these multi-component systems specifically tailored to your application and desired results, ensuring precision and efficiency.

Understanding Hybrid Wiped-Film Distillation

Hybrid Wiped-Film Distillation uniquely combines low thermal stress processing capabilities with the enhanced separation efficiency of a Packed Fractionating Column. This approach allows the wiped-film to act as a once-through, low thermal stress, and low hold-up partial reboiler for the distillation process.

Key Operational Parameters for Hybrid Wiped-Film Distillation:

• Constant, Controlled Feed Rate: Ensures uniform processing.

• Steady Vacuum Level: Optimizes evaporative efficiency.

• Consistent Evaporator Temperature: Maintains product integrity by preventing thermal degradation.

The Packed Fractionating Column, connected to the vapor arm of the Wiped-Film Evaporator, utilizes commercially available distillation column packing types to enhance separation. The diameter and height of the column are meticulously selected based on the feed rate and the number of theoretical plates required for the desired separation. These critical design parameters ensure the column does not overpressurize, which could necessitate a higher reboiler temperature and potentially degrade the material being processed.