Life Cycle Assessment of Gasoline and Diesel Produced via Fast Pyrolysis and Hydroprocessing
In this work, a life cycle assessment (LCA) estimating greenhouse gas (GHG) emissions and net energy value (NEV) of the production of gasoline and diesel from forest residues via fast pyrolysis and hydroprocessing, from production of the feedstock to end use of the fuel in a vehicle, is performed. The fast pyrolysis and hydrotreating and hydrocracking processes are based on a Pacific NorthwestNational Laboratory (PNNL) design report. The LCA results show GHG emissions of 0.142 kg CO2-equiv. per km traveled and NEV of 1.00 MJ per km traveled for a process using grid electricity. Monte Carlo uncertainty analysis shows a range of results, with all values better than those of conventional gasoline in 2005. Results for GHG emissions and NEV of gasoline and diesel from pyrolysis are alsoreported on a per MJ fuel basis for comparison with ethanol produced via gasification. Although pyrolysis-derived gasoline and diesel have lower GHG emissions and higher NEV than conventional gasoline does in 2005, they underperform ethanol produced via gasification from the same feedstock. GHG emissions for pyrolysis could be lowered further if electricity and hydrogen are produced from biomassinstead of from fossil sources.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1009274
- Report Number(s):
- NREL/TP-6A20-49341
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
BIOMASS
DESIGN
ELECTRICITY
ETHANOL
FORESTS
GASIFICATION
GASOLINE
GREENHOUSE GASES
HYDROCRACKING
HYDROGEN
LCA
LIFE CYCLE ASSESSMENT
NET ENERGY
PRODUCTION
PYROLYSIS
RESIDUES
SAFETY REPORTS
biofuels
biomass
greenhouse gas emissions
hydroprocessing
life-cycle assessment
net energy value
pyrolysis
thermochemical