Identifying economical route for crude glycerol valorization: Biodiesel versus polyhydroxy-butyrate (PHB)

Crude glycerol, a by-product of biodiesel industry, has been used for production and polyhydroxy-alkanoates. But question is: which product is economically favorable using crude glycerol as substrate? In this study, energy balance economic assessment carried out valorization B10 polyhydroxy-butyrate (PHB) production. For same quantity utilized, ratio was higher than PHB while unit cost lower that PHB. 50 million L plant capacity biodiesel, 0.77 $/L 2 kg PHB, 4.88 $/kg Thus, in present scenario seems better PHA with raw material. This study useful researchers, environmental scientists industries identifying effective route valorization.