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The main objective of the proposed research is to estimate the energy potentials of the olive trees pruning residues and olive husk residues in the Apulia region (Southern Italy) and to compare the possible bioenergy conversion routes for heat and power generation. 46 006_Pantaleo(537)_37 27-07-2009 11:20 Pagina 46 The part I of the research proposes a preliminary review of the olive oil chain residues in the Apulia region and an assessment of technical potentials and biomass supply costs. The investigation is carried out through a review of existing literature, structured interviews with operators, elaboration of available statistical data, assessment of the typology and current use of the by-products, analysis of olive trees pruning techniques and olive milling processes. The results show a high potential of pruning residues (about 177 kt/year at 15% moisture content) and crude olive husk (about 915 kt/year at 50% average moisture content). The supply costs are, in most cases, compatible with the energy conversion routes, and in particular they result in the range of 45-55 €/t (35% moisture content) for rotobales and chips from PR.
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