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Energies 2013, 6(5), 2644-2662; doi:10.3390/en6052644

Life Cycle GHG of NG-Based Fuel and Electric Vehicle in China

1
Institute of Energy, Environment and Economy (3E), Tsinghua University, Beijing 100084, China
2
China Automotive Energy Research Center (CAERC), Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Received: 27 February 2013 / Revised: 27 April 2013 / Accepted: 14 May 2013 / Published: 22 May 2013
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Abstract

This paper compares the greenhouse gas (GHG) emissions of natural gas (NG)- based fuels to the GHG emissions of electric vehicles (EVs) powered with NG-to-electricity in China. A life-cycle model is used to account for full fuel cycle and use-phase emissions, as well as vehicle cycle and battery manufacturing. The reduction of life-cycle GHG emissions of EVs charged by electricity generated from NG, without utilizing carbon dioxide capture and storage (CCS) technology can be 36%–47% when compared to gasoline vehicles. The large range change in emissions reduction potential is driven by the different generation technologies that could in the future be used to generate electricity in China. When CCS is employed in power plants, the GHG emission reductions increase to about 71%–73% compared to gasoline vehicles. It is found that compressed NG (CNG) and liquefied NG (LNG) fuels can save about 10% of carbon as compared to gasoline vehicles. However, gas-to-liquid (GTL) fuel made through the Fischer-Tropsch method will likely lead to a life-cycle GHG emissions increase, potentially 3%–15% higher than gasoline, but roughly equal to petroleum-based diesel. When CCS is utilized, the GTL fueled vehicles emit roughly equal GHG emissions to petroleum-based diesel fuel high-efficient hybrid electric vehicle from the life-cycle perspective. View Full-Text
Keywords: NG-based fuel; vehicle; GHG; life cycle analysis; China NG-based fuel; vehicle; GHG; life cycle analysis; China
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Ou, X.; Zhang, X.; Zhang, X.; Zhang, Q. Life Cycle GHG of NG-Based Fuel and Electric Vehicle in China. Energies 2013, 6, 2644-2662.

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