Sara Pourkarimi - Department of Chemistry and Chemical Engineering Rasht Branch, Islamic Azad University Rasht, Iran
Maryam Saberdel Sadeh - School of Civil Engineering University of Tehran Tehran, Iran
Asghar Alizadehdakhel - Department of Chemistry and Chemical Engineering Rasht Branch, Islamic Azad University Rasht, Iran

Commonly, Algae biomass is inconvenient to local ecosystems and is not economically feasible in all scenarios. Algae have stood out because of a few points of interest, one of which is the ability to catch CO۲. Another satisfiable argument for the usage of these kinds is that some have a quicker development rate and can develop in an aquatic medium.Thus, it might be possible for Macro-algae and microalgae to be profitably used as a suitable feedstock for renewable energy, biofuels, and other products like biodiesel, bio-methane, and bioethanol. Biofuels, for instance, can be used to reduce emissions and improve energy security. To convert algae to bio-oil, thermochemical methods are recently being used as a modern approach. To achieve this, a process called Pyrolysis is applied to the biomass which would gradually change this into bio-oil, gas, and char. Pyrolysis is broadly utilized for the treatment of waste biomass materials and the production of bio-oil due to its sensible cost and comparably easy operation. To realize such operations, different sorts of pyrolysis reactors have been used for bio-oil production, such as fixed-bed and bubbling fluidized-bed reactors. In this study, we review processing units of pyrolysis as well as its existing different types. We will also try to shed a light on two particular types of reactor models for the conversion of algae biomass.

Energy, Biomass, Pyrolysis, fixed-bed ractor, fluidized-bed reactor