Generating Fuel Energy by Catalytic Pyrolyzing of Microalgae

Pooja Jaiswal

Abstract

In biomass pyrolysis process, a catalyst is used to modify the pyrolysis gases' chemical composition and increase the bio-oil fraction. This process uses the byproducts of thermal conversion processes. It is anticipated that the introduction of pyrolysis catalysts in the case of microalgae will lower the bio-oxygen oil's content and increase the number of added-value compounds in this liquid fraction. Catalysts can also help decrease the nitrogen in bio-oil. As a result, enzymatic decomposition in both slow and rapid modes has been investigated for thermochemical microalgae conversion, often utilising fixed-bed reactor setups but also using MW-assisted heating, as will be covered in the next section. In order to transform oxygenates produced from biomass into aromatic hydrocarbons, a range of processes, including decarboxylation, decarbonylation, dehydration, isomerization, and aromatization, have been explored extensively for the pyrolysis of biomass using these microporous aluminosilicates. ZSM-5 has been widely employed for the decomposition of various types of biomass in this context due to its suitable balance among acid intensity and form selectivity. The appropriate way to lower the oxygen concentration of bio-oils is by catalytic pyrolysis of microalgae, according to several research. Even though the liquid output was lower than it would have been with noncatalytic pyrolysis under the identical circumstances, the energy recovery in the bio-oil fraction was about 40%. Similarly, the bio-oil that had been catalytically improved had a greater aromatic concentration and a lower acid content.

Abstract

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