The increasing need for sustainable waste management has increased interest in the valorization of agro-industrial residues. A wide range of biomass are available, including forestry and agricultural residues and food-processing wastes such as coconut husk, pine wood chips, orange peel, ginger residues, sugarcane bagasse, green coffee and coffee cherry husk. Within this context, this thesis focuses on spent coffee grounds (SCGs) due to their large accessibility and favorable chemical composition. Using an integrated experimental and techno-economic approach, this work explores the pyrolysis of SCGs as a route for the production of bio-oil, with biochar obtained as a valuable byproduct. Pyrolysis experiments were carried out to determine mass balances and products yields, and they showed bio-oil and biochar yield of approximately 37% and 30%, respectively.