Co-pelletization of microalgae Chlorella vulgaris and pine sawdust to produce solid fuels

Testing densification temperatures of 50, 75, and 100 °C revealed that by increasing the temperature from 50 to 75 °C, the pellets' quality was improved. However, further temperature increase to 100 °C enhanced properties of the pellets that had a higher fraction of sawdust. Similarly, increasing the compressive force from 2500 to 3500 N improved properties of the pellets having more sawdust. The results showed that adding microalgae to sawdust not only eliminates the need for elevated densification temperature and force, but also results in the production of pelleted fuels with improved quality.