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Q.

What are disadvantages of Bio fuels?

Tags: careers, education, bio
Asked by ankit shivam, 13 Aug '10 10:19 am
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Answers (3)

 
1.

Biofuels are heavily debated at the moment. At the gas station, the fuel looks nice and clean, but one has to consider the entire production chain to judge its environmental and economic soundness. We highlight the three main issues with current biofuel production: limited CO2 reductions, land and water use and destruction of wild habitats.

Many people believe that the production of biofuels is a CO2-neutral process in which organic matter grows (absorbing CO2 from the atmosphere), is turned into a fuel, and combusted (releasing the same amount of CO2). This, however, completely ignores that growing the biomass is a very CO2 intensive process because of the use of machinery and fertilizer. Some estimate that for each tonne of CO2 released during combustion, about 0.75 tonnes of CO2 were used in the production process. This largely undermines the often-mentioned carbon advantages of biofuels. Some experts, such as chemist Richard Templer of the Imperial College London, even claim t ...more
Answered by hena akhtar, 13 Aug '10 10:25 am

 
  
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2.

Biodiesel is more expensive than normal diesel fuel.
It is less suitable for use in low temperatures.
It cannot be transported in pipelines.
Biodiesel is more likely to attract moisture than petroleum diesel, which can cause problems in cold weather.
Production of ethanol requires large amounts of land and this too can lead to environmental destruction. For example, Brazil, produces ethanol from sugar cane but in the process it is cutting down the Amazon rain forest, thus causing great damage to the environment.
Answered by Ram, 13 Aug '10 10:39 am

 
  
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3.

Debateable issue
Answered by anil garg, 14 Mar '11 05:00 pm

 
  
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