Renewable energy, 2011-05, Vol.36 (5), p.1374-1378
2011
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Details
- Autor(en) / Beteiligte
- Titel
- Energy cost of rapeseed-based biodiesel as alternative energy in China
- Ist Teil von
- Renewable energy, 2011-05, Vol.36 (5), p.1374-1378
- Ort / Verlag
- Oxford: Elsevier Ltd
- Erscheinungsjahr
- 2011
- Quelle
- ScienceDirect
- Beschreibungen/Notizen
- As a substitute for diesel and considered a renewable energy, rapeseed-based biodiesel has attracted increasing attention in China. The present work to estimate energy cost of rapeseed-based biodiesel in China is based on embodied energy intensities for various inputs out of a recent extended input–output analysis for Chinese economy, and the accounted life-cycle process of biodiesel production includes four main stages as agricultural crop production, transportation, industrial conversion characterized by alkali-catalyzed transesterification and wastewater treatment. Due to the low rapeseed yield and intensive chemical fertilizer use in China, the overall energy cost of rapeseed-based biodiesel is estimated at 1.1 times of its biodiesel energy output, corresponding to a negative energy return, with essential policy-making implications, in contrast to the positive ones usually reported in previous researches.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0960-1481eISSN: 1879-0682DOI: 10.1016/j.renene.2010.11.026Titel-ID: cdi_proquest_miscellaneous_856771129
- Format
- –
- Schlagworte
- Agrochemicals, Alternative energy, Alternative fuels. Production and utilization, Applied sciences, Biodiesel, Biofuel, crop yield, crops, Economic data, embodied energy, Energy, energy costs, Energy economics, Exact sciences and technology, fertilizers, Fuels, General, economic and professional studies, Methodology. Modelling, Miscellaneous, Natural energy, rapeseed, Renewable energy, transesterification, transportation, wastewater treatment