Abstract
The production cost of biocrude oil from native polyculture microalgae is a challenging point, especially when set up in a commercial scale. This work studied a techno-economic analysis of biocrude oil from native polyculture microalgae in Indonesia on a 10-ha open raceway pond utilizing effluent and excess energy of palm oil mills. Specific operation strategies of flocculation method, pressure filtration, and hydrothermal liquefaction were applied for expenditure analysis. The results show that the biomass productivity was the most sensitive factor on biocrude production feasibility followed by the extraction system. The effluent and excess energy of palm oil mills saved operational costs for power supply and nutrients by up to 67.11 %. With the annual production of 161.4 kL/y, biocrude oil price form native polyculture microalgae was 2 USD/L to reach commercial production in Indonesia, whereas in Japan was 5.47 USD/L based on the utilization of wastewater treatment plant.
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