Title

Emergent Green Technologies for Cost-Effective Valorization of Microalgal Biomass To Renewable Fuel Products Under a Biorefinery Scheme

Document Type

Article

Publication Date

2-14-2021

Publication Title

Chemical Engineering Journal

Volume

415

First page number:

1

Last page number:

18

Abstract

© 2021 Elsevier B.V. The current COVID-19 pandemic is forcing radical change in the global energy economy. All energy sectors have experienced profound economic contraction in 2020, with the notable exception of renewable energy, which has grown by nearly 3%. These unprecedented circumstances offer a pristine opportunity to create new jobs, technologies, and infrastructure, aimed at engineering a climate-friendly and sustainable energy future. This review explores several pathways to renewable bioenergy by developing microalgal biorefinery systems which capitalize upon the unique abilities of microalgae to sequester carbon and produce biomass for bioenergy feedstock, without compromising food security or land use. This review further highlights the necessity of synergistically coupled upstream and downstream techniques to realize the economic viability of microalgal biorefinery systems, and details possible product pathways using either whole or fractionated biomass. The zero-waste circular biorefinery approach, when specifically tailored to local conditions, in terms of regional climate, economics, infrastructure, and available resources, is the answer to economically competitive microalgal bioenergy. The most promising emergent methods for microalgal biomass valorization to fungible bioenergy are reviewed herein.

Keywords

Biofuel production; Biomass upgrading; Biorefinery; Microalgal biotechnology; Renewable energy

Disciplines

Biotechnology | Chemical Engineering

Language

English

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