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Carbon Footprint Assessment of Palm, Jatropha, and Microalgal Biodiesel

Saranya, G and Ramachandra, TV (2022) Carbon Footprint Assessment of Palm, Jatropha, and Microalgal Biodiesel. [Book Chapter]

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Official URL: https://doi.org/10.1007/978-981-19-7226-3_2


Diminishing fossil fuel reserves, escalating oil prices, higher greenhouse gas footprint, and the adverse effects of climate change have propelled increased research focus during the twenty-first century on sustainable renewable energy transitions. Algal biofuel is gaining global interest due to its potential to convert biomass into a range of bioenergies and other value-added products. Life Cycle Assessment (LCA) aids in quantifying the environmental benefits of algal biodiesel over plant-oil-based biodiesel. The present chapter presents the environmental footprint of biodiesel from microalgae. It is compared with the terrestrial oil yielding feedstocks of first- (palm) and second-generation (Jatropha)-derived biodiesel by considering the mass and energy of production processes starting from feedstock generation to biodiesel production (cradle to gate analysis). The lifecycle impact of different generations of the biodiesel was assessed using OpenLCA software to understand the potential health and environmental implications (GHG, etc.)/soundness. Process-wise energy expenditure estimation shows a 68 and 45 reduction in energy expenditure and GHG emissions in algal biodiesel compared to first- (palm) and second-generation (jatropha) biodiesel, respectively. Results also reveasled a GHG mitigation potential in terms of direct GHG emission savings of 84, 90, and 95 for palm, Jatropha, and microalgal biodiesel compared to conventional fossil diesel. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Item Type: Book Chapter
Publication: Environmental Footprints and Eco-Design of Products and Processes
Publisher: Springer
Additional Information: The copyright for this article belongs to Springer.
Keywords: Cradle-to-gate LCA; Greenhouse gas footprint; Impact assessment; Jatropha; Lifecycle emissions; Microalgal biodiesel; Net energy ratio; Palm
Department/Centre: Division of Interdisciplinary Sciences > Center for Infrastructure, Sustainable Transportation and Urban Planning (CiSTUP)
Date Deposited: 09 Jan 2023 09:11
Last Modified: 09 Jan 2023 09:11
URI: https://eprints.iisc.ac.in/id/eprint/78939

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