Biomass, Biofuel, and Vegetable Oil: Pros & Cons
Biomass production involves using garbage or other renewable resources such as corn or other vegetation, to generate electricity. When garbage decomposes the methane
produced is captured in pipes and later burned to produce electricity.
Vegetation and wood can be burned directly, like fossil fuels, to
generate energy, or processed to form alcohols.
Vegetable oil is generated from sunlight and CO2 by plants. It is safer to use and store than gasoline or diesel as it has a higher flash point. Straight vegetable oil works in diesel engines if it is heated first. Vegetable oil can also be transesterified to make biodiesel which burns like normal diesel.
Pros
- Biomass production can be used to burn organic waste products
resulting from agriculture. This type of recycling encourages the
philosophy that nothing on this Earth should be wasted. The result is
less demand on the Earth's resources, and a higher carrying capacity
for Earth because non-renewable fossil fuels are not consumed.
- Biomass is abundant on Earth and is generally renewable. In theory,
we will never run out of organic waste products as fuel, because we are
continuously producing them. In addition, biomass is found throughout
the world, a fact that should alleviate energy pressures in third world
nations.
- When methods of biomass production other than direct combustion of plant mass, such as fermentation and pyrolysis,
are used, there is little effect on the environment. Alcohols and other
fuels produced by these alternative methods are clean burning and are
feasible replacements to fossil fuels.
- Since CO2 is first taken out of the atmosphere to make the
vegetable oil and then put back after it is burned in the engine, there
is no net increase in CO2. So vegetable oil does not contribute to the problem of greenhouse gas.
- Vegetable oil has a higher flash point and is safer than most fossil fuels.
- Transitioning to vegetable oil could be relatively easy as biodiesel works where diesel works, and straight vegetable oil takes relatively minor modifications.
- The World already produces more than 100 billion gallons a year for food industry, so we have experience making it.
- Algaculture has the potential to produce far more vegetable oil per acre than current plants.
- Infrastructure for biodiesel around the World is significant and growing.
Cons
- Direct combustion without emissions filtering generally leads to air pollution similar to that from fossil fuels.
- Producing liquid fuels from biomass is generally less cost effective than from petroleum, since the production of biomass and its subsequent conversion to alcohols is particularly expensive.
- Some researchers claim that, when biomass crops are the product of intensive farming, ethanol fuel
production results in a net loss of energy after one accounts for the
fuel costs of fertilizer production, farm equipment, and the
distillation process. [23]
- Direct competition with land use for food production.
- Current production methods would require enormous amounts of land to replace all gasoline and diesel. With current technology, it is unfeasible for biofuels to replace the demand for petroleum.
- Growth in vegetable oil production is already resulting in deforestation.
- Converting forest land to vegetable oil production can result in a net increase in CO2.
- Demand for vegetable oil used as a fuel may drive up prices of vegetable oils in the food industry
- Costs to modify existing engines may outweigh fuel cost savings
This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia Encyclopedia article "Energy Development"
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