Oil Pumps in Biodiesel Production

Oil Pumps in Biodiesel Production

For efficient biodiesel production, ensuring the timely and appropriate movement of feedstocks, intermediates, and finished product is of utmost importance. Oil pumps, essentially the “heart” of the biodiesel operation, are responsible for the circulation and transfer of these liquids. This guide will elucidate the significance, types, and considerations of oil pumps in biodiesel production.

Importance of Oil Pumps

  • Consistent Flow: Oil pumps ensure a consistent flow of feedstocks and products, vital for steady production.
  • Pressure Control: Certain stages of the biodiesel process require precise pressure levels, and pumps help achieve and maintain these conditions.
  • Temperature Regulation: Circulation can assist in maintaining even temperatures, especially when integrated with heaters.

Common Types of Oil Pumps in Biodiesel Production

1. Centrifugal Pumps

Uses a rotating impeller to impart energy to the fluid, propelling it outward.

Advantages: Smooth flow, easily scalable, and can handle large volumes.

Common Use: Transfer of large volumes and circulation in big reactors.

2. Gear Pumps

Uses interlocking gears to move fluid.

Advantages: Precise volumetric flow, can handle higher viscosities.

Common Use: Feedstock and finished biodiesel transfer, especially when precision is required.

3. Diaphragm Pumps:

Uses a flexible diaphragm to create a variable-volume chamber for fluid movement.

Advantages: Can handle sludgy or viscous fluids, self-priming.

Common Use: Handling waste vegetable oil or feedstocks with particulates.

4. Screw Pumps:

Utilizes intertwined screws to move fluid.

Advantages: Smooth, pulse-free flow and can handle a range of viscosities.

Common Use: Feedstock movement and integration into continuous processes.

Key Considerations for Oil Pumps

  • Material Compatibility: Pumps should be made of materials resistant to biodiesel, feedstocks, and other chemicals encountered.
  • Flow Rate & Pressure: Select pumps based on required flow rates and pressures essential for your production scale.
  • Viscosity Handling: Ensure the pump is suited for the viscosity of the fluid it will handle.
  • Maintenance & Durability: Opt for pumps known for longevity and ease of maintenance.
  • Energy Efficiency: Energy-efficient pumps reduce operational costs in the long run.
  • Integration: Ensure the chosen pump integrates seamlessly with other equipment in your biodiesel production setup.


Oil pumps play an indispensable role in biodiesel production, ensuring that the process runs seamlessly and efficiently. By understanding the demands of each stage and selecting the right pump, producers can optimize throughput, reduce downtimes, and enhance overall product quality.