Techno-economic and environmental assessment of an olive stone based biorefinery |
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| Institution: | 1. Instituto de Biotecnología y Agroindustria, Departamento de Ingeniería Química, Universidad Nacional de Colombia sede Manizales, Km 9 Vía al Aeropuerto la Nubia, Manizales, Colombia;2. Department of Chemical, Environmental and Materials Engineering, Agrifood Campus of International Excellence (ceiA3), University of Jaén, 23071 Jaén, Spain;1. Department of Chemical, Environmental and Materials Engineering, Agrifood Campus of International Excellence (ceiA3), Universidad deJaén, 23071 Jaén, Spain;2. Department of Food Phytochemistry, Instituto de la Grasa, CSIC, Ctra. de Utrera, km.1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain;1. Instituto de Biotecnología y Agroindustria, Departamento de Ingeniería Química, Universidad Nacional de Colombia sede Manizales, Cra. 27 No. 64-60, Manizales, Colombia;2. Departamento de Ingeniería Química, Ambiental y de los Materiales, Universidad de Jaen, Campus Las Lagunillas, Spain |
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| Abstract: | Olive tree cultivation is spreading worldwide as a consequence of beneficial effects of olive oil consumption. Olive oil production process and table olive industries are the major sources of olive stones. Currently, this by-product is used in direct combustion to produce energy as electricity or heat. However, there are other possibilities for taking full advantage of a renewable source of interesting compounds. In this work the techno-economic and environmental assessment of two biorefinery schemes and its comparison with the direct combustion (base case) of this residue are presented. The first biorefinery scheme describes the integrated production of xylitol, furfural, ethanol and poly-3-hydroxybutyrate (PHB). The second biorefinery scheme considers the production of xylitol, furfural, ethanol and PHB integrated to a cogeneration system for producing bioenergy from the solid residues resulting from the mentioned processes. The results showed that in the first biorefinery scheme, the net profit margin is approximately 53%, while the second present a net profit margin of 6%. |
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| Keywords: | Biorefinery Olive stone Ethanol Xylitol PHB Furfural |
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