Upgrade of Corrosiveness Nature of Fish Waste Bio-Oil Using a Hybrid Catalyst (MgO/Na2CO3) Optimization Process

In this work, catalytic cracking of waste fish oil (WFO) to bio-fuel for diesel engine was studied over hybrid catalysts (Sodium carbonate Na₂CO₃/Magnesium oxide). The experiments were conducted using a fix-bed reactor. The effect of catalyst-to-WFO ratio and the amount of each catalyst were studied over the yields of bio-oil and acid value AV, of the bio-oil following central composite design (CCD). The statistical analysis showed that catalyst significantly affected the bio-oil yield and acid value. A higher bio-oil yield over 70 wt% with a lower acid value (2.7 mg_KOH/g_oil) were identified at catalyst-to-WFO of 1:7 by using the same amount of sodium carbonate and magnesium oxide. The optimum bio-oil was analyzed and properties have been investigated and compared to diesel fuel physical properties.