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Open AccessFeature PaperReview

The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review

1
Department of Chemical Engineering, Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Roma, Italy
2
Department of Environmental Sciences, Universidad Francisco de Paula Santander, Av. Gran Colombia No. 12E-96, Cucuta 540003, Colombia
*
Author to whom correspondence should be addressed.
Catalysts 2021, 11(1), 22; https://doi.org/10.3390/catal11010022
Received: 25 September 2020 / Revised: 25 November 2020 / Accepted: 27 November 2020 / Published: 28 December 2020
Over the last decades, microalgal biomass has gained a significant role in the development of different high-end (nutraceuticals, colorants, food supplements, and pharmaceuticals) and low-end products (biodiesel, bioethanol, and biogas) due to its rapid growth and high carbon-fixing efficiency. Therefore, microalgae are considered a useful and sustainable resource to attain energy security while reducing our current reliance on fossil fuels. From the technologies available for obtaining biofuels using microalgae biomass, thermochemical processes (pyrolysis, Hydrothermal Liquefaction (HTL), gasification) have proven to be processed with higher viability, because they use all biomass. However, due to the complex structure of the biomass (lipids, carbohydrates, and proteins), the obtained biofuels from direct thermochemical conversion have large amounts of heteroatoms (oxygen, nitrogen, and sulfur). As a solution, catalyst-based processes have emerged as a sustainable solution for the increase in biocrude production. This paper’s objective is to present a comprehensive review of recent developments on the catalyst-mediated conversion of algal biomass. Special attention will be given to operating conditions, strains evaluated, and challenges for the optimal yield of algal-based biofuels through pyrolysis and HTL. View Full-Text
Keywords: microalgal biomass; thermochemical conversion; catalytic upgrading; liquid fuels; hydrothermal liquefaction; pyrolysis; gasification microalgal biomass; thermochemical conversion; catalytic upgrading; liquid fuels; hydrothermal liquefaction; pyrolysis; gasification
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MDPI and ACS Style

Zuorro, A.; García-Martínez, J.B.; Barajas-Solano, A.F. The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review. Catalysts 2021, 11, 22. https://doi.org/10.3390/catal11010022

AMA Style

Zuorro A, García-Martínez JB, Barajas-Solano AF. The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review. Catalysts. 2021; 11(1):22. https://doi.org/10.3390/catal11010022

Chicago/Turabian Style

Zuorro, Antonio; García-Martínez, Janet B.; Barajas-Solano, Andrés F. 2021. "The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review" Catalysts 11, no. 1: 22. https://doi.org/10.3390/catal11010022

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