A Comparative Environmental Evaluation of the Coal and Natural Gas Life Cycle
نویسندگان
چکیده
منابع مشابه
Comparative life-cycle air emissions of coal, domestic natural gas, LNG, and SNG for electricity generation.
The U.S. Department of Energy (DOE) estimates that in the coming decades the United States' natural gas (NG) demand for electricity generation will increase. Estimates also suggest that NG supply will increasingly come from imported liquefied natural gas (LNG). Additional supplies of NG could come domestically from the production of synthetic natural gas (SNG) via coal gasification-methanation....
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Liquid transportation fuels derived from coal and natural gas could helpthe United States reduce its dependence on petroleum. The fuels could be produced domestically or imported from fossil fuel-rich countries. The goal of this paper is to determine the life-cycle GHG emissions of coal- and natural gas-based Fischer-Tropsch (FT) liquids, as well as to compare production costs. The results show...
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چکیده ندارد.
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the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...
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ژورنال
عنوان ژورنال: Natural Resources
سال: 2013
ISSN: 2158-706X,2158-7086
DOI: 10.4236/nr.2013.48060