Glycerine Purification

Activated Carbon for Glycerine Purification

From crude biodiesel byproduct to pharmaceutical-grade material.

Glycerine purification spans a wide quality spectrum. At every level, the challenge is removing color, odor, and trace organic impurities without introducing contaminants that would fail downstream specifications. The carbon must perform in a viscous, high-boiling-point matrix where mass transfer is slow and conventional adsorption kinetics do not apply.

The Challenge & PureStar Approach

The Core Pain Point: Viscosity-limited mass transfer.

Glycerine's high viscosity slows contaminant diffusion to adsorption sites, meaning that standard contact times and carbon dosages developed for aqueous systems are inadequate. Facilities often compensate with excessive carbon doses or extended batch times, inflating cost and reducing throughput.

PureStar's glycerine grades address viscosity through high-mesopore, rapid-equilibrium powder formulations. Our food-grade and pharmaceutical-grade powdered carbons achieve adsorption equilibrium in high-viscosity media faster than conventional products, reducing batch cycle times and carbon dosage. Low-ash formulations ensure that the carbon itself does not introduce metal impurities that would fail pharmaceutical or food-grade specifications.