Analytical Solution of the Supercritical Fluid Extraction Model Specified for Bidisperse Packed Beds of Plain Particles

Key Points

• This study aims to derive an analytical solution for the supercritical fluid extraction model applied to bidisperse packed beds of particles.
• Analyzed the supercritical fluid extraction process using the shrinking core model.
• Derived analytical solutions for equations governing extraction dynamics.
• Focused on a random mixture of two different particle sizes within a polydisperse bed.
• Conducted typical extraction regime analysis for experimental conditions.
• Identified high extraction rates during the initial stage of the process.
• Developed a phase portrait reflecting supercritical fluid extraction dynamics.
• Showed that the particle size mixture impacts extraction efficiency.

Abstract