Glycerin is produced as a byproduct of the splitting reaction. A typical glycerin process consists of three operations, namely:

  • Sweet water Treatment
  • Evaporation
  • Glycerin distillation

Our process delivers:

  • High yield
  • Best color
  • High purity

Sweet Water Treatment

Sweet Water Treatment is for removal of Fatty matter and MONG. Alternate treatment methods can be implemented to deliver:

  • High purity, or minimum MONG
  • Minimum hardness in the treated sweet water
  • Optimum PH. For good quality crudes a lower pH may be used which improves recovery and provides a smooth boil-up during subsequent distillation.

Armaco Chemical Processes Systems



Glycerin Process


The sweet water from the treatment plant is evaporated in a double effect or triple effect evaporators to get crude glycerine.



Technical Specifications

Glycerin Process
Plant capacity
> 50 TPD
> 99.5%
APHA < 15


Glycerin Distillation

The crude glycerine from the evaporation plant is distilled under high vacuum in a distillation still with the addition of stripping steam. Care must be taken to ensure that the pH of crude glycerine is optimal. The distillation column design is with structured high efficiency packings and internals for low pressure drops and high capacity. Column top temperatures can be adjusted in a series of condensers to get the desired grade of distilled glycerine. It is then bleached in activated carbon beds, filtered and sent for storage.

As required, the process can be adjusted to obtain either USP or IP grade, from different feed stocks.