Application of waste from biodiesel synthesis for the production of fuel pellets and biogas

Abstract The enzymatic process of simultaneous oil extraction and interesterification (in situ) using methyl formate as acyl receptor can be applied for biodiesel synthesis. This process produces waste (a mixture of rapeseed cake and enzymatic catalyst), which is suitable for energy purposes—production of fuel pellets and biogas. Fuel pellets were produced using hemp seed husks and waste from the interesterification, the amount of which in the mixture with hemp husks ranged from 0 to 25%. The optimal composition of raw