Evaluating the Effects of Reactor Type on Pyrolysis of Nannochloropsis Oculata on Bio-Oil and Bio-Char Products, and Bio-Oil Upgrading Using Catalysts
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Pyrolysis products from microalgae using two types of reactors, a batch and an auger, will be investigated and compared at a temperature of 500oC. Also, the bio-oil will be upgraded through hydrotreatment to be used as a substitution of petroleum fuels. The pyrolysis products of bio-char, bio-oil, and combustible gases will be analyzed. The ultimate analysis will also completed and it shows the HHV (Higher heating value) of the bio-oil from a batch reactor. Chemical compositions of bio-oils using Gas Chromatography-Mass Spectrometry (GC-MS) will be categorized which indicates a potential of bio-oil as a substitute for crude petroleum oil. HHV of bio-char will also evaluated and it is anticipated to contain considerable energy and to be used for additional energy sources or other applications. Then, the produced bio-oil from a batch reactor will be upgraded in a catalytic reactor. A hydrotreatment process will be applied that uses catalysts with hydrogenation and deoxygenation, which reduces the oxygen contents of bio-oil. The initial oxygen content in algae bio-oil will be reduced with catalysts while the carbon and hydrogen contents will be increased. The O/C ratio of bio-oil will be obtained and it will be compared to the O/C ratio of petroleum products (less than 0.06). The pyrolysis results using the microalgae feedstock (N.oculata) will show that the products are potentially valuable sources of fuels and chemicals.
Kim, Changkyu (2016). Evaluating the Effects of Reactor Type on Pyrolysis of Nannochloropsis Oculata on Bio-Oil and Bio-Char Products, and Bio-Oil Upgrading Using Catalysts. Undergraduate Research Scholars Program. Available electronically from