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Article
Life cycle assessment of the production of hydrogen and transportation fuels from corn stover via fast pyrolysis
The International Journal of Life Cycle Assessment
  • Yanan Zhang, Iowa State University
  • Guiping Hu, Iowa State University
  • Robert C. Brown, Iowa State University
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
7-1-2014
DOI
10.1007/s11367-014-0745-y
Abstract

This life cycle assessment (LCA) evaluates and quantifies the environmental impacts of the production of hydrogen and transportation fuels from the fast pyrolysis and upgrading of corn stover. Input data for this analysis come from Aspen Plus modeling, a GREET model database and a U.S Life Cycle Inventory Database. SimaPro 7.3 software is employed to estimate the environmental impacts. The results indicate that the net fossil energy input is 0.25 MJ and 0.23 MJ per km traveled for a light-duty vehicle fueled by gasoline and diesel fuel, respectively. Bio-oil production requires the largest fossil energy input. The net Global Warming Potential (GWP) is 0.037 kg CO2eq and 0.015 kg CO2eq per km traveled for a vehicle fueled by gasoline and diesel fuel, respectively. Vehicle operations contribute up to 33% of the total positive GWP, which is the largest GHG (greenhouse gas) footprint of all the unit processes. The net GWPs in this study are 88% and 94% lower than for petroleum-based gasoline and diesel fuel (2005), respectively. Biomass transportation has the largest impact on ozone depletion among all of the unit processes. Sensitivity analysis shows that fuel economy, transportation fuel yield, bio-oil yield, and electricity consumption are the key factors that influence GHG emissions.

Comments

This is a manuscript of an article from The International Journal of Life Cycle Assessment 19 (2014): 1371, doi: 10.1007/s11367-014-0745-y. Posted with permission. The final publication is available at Springer via http://dx.doi.org/10.1007/s11367-014-0745-y

Copyright Owner
Springer International Publishing
Language
en
Date Available
2014-08-17
File Format
application/pdf
Citation Information
Yanan Zhang, Guiping Hu and Robert C. Brown. "Life cycle assessment of the production of hydrogen and transportation fuels from corn stover via fast pyrolysis" The International Journal of Life Cycle Assessment Vol. 19 Iss. 7 (2014) p. 1371 - 1381
Available at: http://works.bepress.com/guiping_hu/13/