Biofuel Crops Production, Physiology and Genetics
Liquid biofuels have been around for more than a century. Inventors of automotive engines had envisioned farm-grown energy sources to play an important role in supplying fuel to run these vehicles. Biofuels have met their extinction several times due to the price advantage enjoyed by fossil fu...
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
| Được phát hành: |
CABI
2014
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/37186 |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | Liquid biofuels have been around for more than a century. Inventors of automotive engines had
envisioned farm-grown energy sources to play an important role in supplying fuel to run these
vehicles. Biofuels have met their extinction several times due to the price advantage enjoyed by
fossil fuels, but always managed to resurface after an interval during times of petroleum shortage.
Farm survival and rural development has been the main impetus behind promoting biofuels.
However, during the last three or four decades environmental benefits and energy security have
also emerged as reasons for the use of biofuel thereby providing it a more stable market base.
Global biofuel production has grown from 16 billion l in 2000 to more than 100 billion l in 2010.
Currently, biofuels account for approximately 3% of total world road transport fuel, but they are
projected to meet up to 27% of the world demand by 2050. Under this scenario, biofuels may
help reduce CO2 emission by 2.1 gigatonnes (Gt) per year.
To be sure, critics of biofuel abound. There has been fierce debate concerning the wisdom of
using food crops for biofuel and holding it responsible for grain price rises of recent years. The
greenhouse gas remediation value of biofuel has also been questioned with the argument that the
inputs of fossil fuels required in tillage, fertilizers, transportation and processing essentially negates
the perceived CO2 sequestration advantage. Regardless of the validity of these claims and the data
base from which these conclusions were derived, these criticisms had the positive impacts of
pushing the biofuel industry to chart a future course based on more sustainable and non-food
source lignocellulosic feedstocks that indisputably provide CO2 remediation benefits and to
develop processes essential for their efficient conversion to biofuel. In addition, much research
and development emphasis has been placed on making the biofuel fully compatible with the
existing distribution systems and to make the volumetric energy content of biofuels equivalent to
fossil fuels. |
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