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| Srl | Item |
| 1 |
ID:
118272
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| Publication |
2013.
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| Summary/Abstract |
The dual forces of population growth and climate change will exacerbate pressures on land use, water access, and food security.
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| 2 |
ID:
124283
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| Publication |
2013.
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| Summary/Abstract |
Pyrolysis is an alternative form of renewable energy production and a potential source of greenhouse gas emissions mitigation. This study examines how poplar-based biochar can be applied in Taiwan for electricity generation and for soil improvement and to what extent it brings economic and environmental benefits. It is a preliminary study and focuses on the balances of different economic and environmental items. This paper reports on a case study examination of the economic and greenhouse gas implications of pyrolysis plus biochar utilization. The case study involves using poplar grown on set-aside land in Taiwan with the biochar applied to rice fields. We examine both fast and slow forms of pyrolysis and find how the profitability varies under different price structures. The results show that fast pyrolysis is more profitable than slow pyrolysis under current electricity price, GHG price and crop yield as the slow pyrolysis generates relatively less electricity but lower value product-biochar. We also find that fast pyrolysis and slow pyrolysis offset about 1.4 t and 1.57 t of CO2 equivalent per ton of raw material, respectively.
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| 3 |
ID:
171466
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| Summary/Abstract |
In 2017, Taiwan announced that it would replace nuclear power, which accounts for approximately 4.43% of its total energy supply (or 8.30% of total electricity supply), with renewable energy by 2025. Thus developing reliable and stable renewable energy sources has become an urgent need. This study analyzes the portfolio of renewable energy technologies available to achieve such a goal. In doing such we consider potential of power generated from municipal solid waste (MSW), animal manure, energy crops, crop residues, wind power, and photovoltaic (PV) sources. The results show that up to an additional 5896 GWh (or million kWh) could be generated from recycled MSW, 3107 from animal manure, 6440 from energy crops and crop residues, 3685 from solar and 609 from wind power. Collectively, an increase in renewable energy production could expand to supply as much as 6.15% of current usage. Meanwhile, before replacing nuclear the use of fossil fuels can be reduced by up to 4.51%, increasing energy security, but a greater promotion on renewable energy development should be focused when nuclear power is phased out. We also discuss the cost of such a transition.
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