Life cycle GHG emissions from microalgal biodiesel - a CA-GREET Model

TitleLife cycle GHG emissions from microalgal biodiesel - a CA-GREET Model
Publication TypeJournal Article
Year of Publication2014
AuthorsWoertz I.C, Benemann J.R, Du N., Unnasch S., Mendola D., Mitchell B.G, Lundquist T.J
JournalEnvironmental Science & Technology
Volume48
Pagination6060-6068
Date Published2014/06
Type of ArticleArticle
ISBN Number0013-936X
Accession NumberWOS:000336952000003
Keywordsenergy; environmental impacts; technoeconomic analysis
Abstract

A life cycle assessment (LCA) focused on greenhouse gas (GHG) emissions from the production of microalgal biodiesel was carried out based on a detailed engineering and economic analysis. This LCA applies the methodology of the California Low Carbon Fuel Standard (CA LCFS) and uses life cycle inventory (LCI) data for process inputs, based on the California-Modified Greenhouse Gases, Regulated Emissions, and Energy use in Transportation (CA GREET) model. Based on detailed mass and energy balances, calculated GHG emissions from this algal biodiesel system are 70% lower than those of conventional diesel fuel, meeting the minimum 50% GHG reduction requirements under the EPA RFS2 and 60% for the European Union Renewable Energy Directive. This LCA study provides a guide to the research and development objectives that must be achieved to meet both economic and environmental goals for microalgae biodiesel production.

DOI10.1021/es403768q
Short TitleEnviron. Sci. Technol.
Integrated Research Themes: 
Student Publication: 
Yes
Student: