期刊
ENERGY
卷 128, 期 -, 页码 475-486出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2017.04.040
关键词
Life cycle assessment; Well-to-combustion; CO2 emissions; Crude; Uncertainty; Monte Carlo
资金
- NSERC/Cenovus/Alberta Innovates Associate Industrial Research Chair Program in Energy and Environmental Systems Engineering [IRCPJ 436795, 436794 - 2011]
- Cenovus Energy Endowed Chair Program in Environmental Engineering
Many studies have calculated deterministic point estimates of well-to-combustion (WTC) emissions of transportation fuels from crude oil in an attempt to determine which crude oils have lower or higher emissions. However, there is considerable variation in the published results, resulting in uncertainty. The purpose of this study is to identify GHG emissions ranges for five conventional and two unconventional crudes by performing an uncertainty analysis using an improved version of the FUNdamental ENgineering PrinciplEs-based ModeL for Estimation of GreenHouse Gases (FUNNEL-GHG). Distributions for key inputs in the Monte Carlo simulation were determined based on values obtained from the literature. Eleven scenarios were developed, nine historical and two current, the former using life-long average production data from the oil fields studied and the latter using recent production data to illustrate how WTC emissions change as the fields age. The mean WTC emissions ranges for the eleven scenarios are 97.5-140 gCO(2)eq/MJ. The uncertainty in the WTC emissions ranges from +/- 3% to +/- 11%. The largest source of uncertainty in the WTC emissions is from the venting, fugitive, and flaring volumes, fluid injection rates, and refinery yields. (C) 2017 Elsevier Ltd. All rights reserved.
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