Brief of Recycle Process

- Filtration

This process is to take out fluid, food waste, substances and fine particles in the waste cooking oil before being fed into the reaction process.

- Mixing of Methanol with Catalyst

A titration process is used to determine the amount of methanol used. The catalyst is typically Sodium or Potassium Hydroxide.

- Reaction

The Methanol/catalyst mix is charged into the oil or fat which go through the transesterification reaction process in a totally closed vessel to prevent VOC (volatile organic compound) emission into the atmosphere. The reaction takes place with agitation in a low temperature environment just below the boiling point of methanol. The reaction is an eco-friendly and low energy demand manufacturing process.


The Transesterification process is adopted for several reasons:

It is a low temperature and low pressure (Atmospheric Pressure) process.

It yields high conversion (around 90%) with good reaction time.

It is a direct conversion to biodiesel with no intermediate compounds.

No exotic materials of construction are needed.

- Separation

Once the reaction is complete, two major products exist: glycerin and biodiesel. Each has a substantial amount of the excess methanol that was used in the reaction. The two products are separated and the excess methanol will be further separated from both the products.

- Refinery

Biodiesel will be refined by advance technologies to meet with EU EN14214 quality standard. It becomes an alternate green & renewable energy which can substitute the use of petroleum diesel.