Valorization of spent coffee ground by mixing with various types of residual biomass for pellet production: evaluation of solid biofuel properties at different mixtures
Michael-Alexander Kougioumtzis, Vasileios Filippou, Anatoli Rontogianni, E. Karampinis, P. Grammelis, E. Kakaras
Biofuels, Bioproducts and Biorefining