High Efficient Biosynthesis 2-Ethylhexyl Palmitate in a Rotating Packed Bed Reactor.

Area of Science:

• Chemical Engineering
• Biocatalysis
• Process Intensification

Background:

• 2-Ethylhexyl palmitate (2-EHP) is a key chemical product typically synthesized via esterification.
• High viscosity of 2-EHP hinders mass transfer, impacting yield and reaction efficiency in conventional reactors.
• Enzymatic synthesis offers a greener alternative but faces challenges with mass transfer limitations.

Purpose of the Study:

• To investigate the application of a rotating packed bed (RPB) reactor for the enzymatic synthesis of 2-EHP.
• To address mass transfer limitations caused by high product viscosity in 2-EHP production.
• To compare the performance of the RPB reactor with a traditional continuous stirred-tank reactor (CSTR).

Main Methods:

• Enzymatic esterification of 2-EHP was performed in a rotating packed bed (RPB) reactor.
• Process parameters were optimized to enhance reaction efficiency and overcome mass transfer issues.
• Comparative analysis with a continuous stirred-tank reactor (CSTR) was conducted.

Main Results:

• The RPB reactor significantly improved the final yield of 2-EHP under optimal conditions.
• Reaction time was reduced to 1 hour in the RPB reactor, a substantial improvement over CSTR.
• The enzyme exhibited enhanced stability and longevity in the RPB reactor, achieving nearly 99% yield after 9 batches.

Conclusions:

• The rotating packed bed reactor demonstrates superior performance for the enzymatic synthesis of 2-EHP.
• RPB technology effectively overcomes mass transfer limitations associated with high-viscosity products.
• This study highlights the potential of RPB reactors for efficient and intensified biocatalytic production processes.