biofuels (biofuel) refers to extraction from biomass composition or solid, liquid or gaseous fuels. Alternatively gasoline and diesel can be taken from petroleum, it is a renewable energy exploitation of important direction. The so-called biomass is the use of air, water, land and other organisms produced by photosynthesis, i.e. all organic material can be grown with a life. It includes, animals and microorganisms. Unlike petroleum, coal, nuclear and other traditional fuels, which fuels are emerging renewable fuels.
1. Biofuel noun interpretation
biofuel solid, liquid or gaseous fuels from biomass composition or extraction (biofuel) refers. Alternatively gasoline and diesel can be taken from petroleum, it is a renewable energy exploitation of important direction. The so-called biomass is the use of air, water, land and other organisms produced by photosynthesis, i.e. all organic material can be grown with a life. It includes, animals and microorganisms. Unlike petroleum, coal, nuclear and other traditional fuels, which fuels are emerging renewable fuels.
2. The biofuels industry introduced
biofuels industry describes development of the affected oil resources, prices, environmental protection and global climate change, since the 1970s, many countries, the growing importance of biofuels, and achieved remarkable results. Chinese biofuel development has made great achievements, especially in the grain-based fuel ethanol production has begun to take shape. US scientists latest research results show, as the two most widely used biofuel, biodiesel and ethanol fuel despite more favorable than fossil fuels, but it is impossible to meet the energy needs of society. The researchers found that, even if all US corn and soybeans are grown for the production of bio-energy, we can only satisfy 12 6 percentage percentage of gasoline and diesel demand needs of society as a whole. The first corn and soybeans to meet food, feed and other economic needs, can not all be used to produce biofuels.
refers to a biofuel produced by biological resources ethanol and biodiesel fuel, gasoline and diesel can be taken alternatively from petroleum, it is an important direction of development and utilization of renewable energy. Affected world oil resources, prices, environmental protection and global climate change, since the 1970s, many countries are increasingly attach importance to the development of biofuels, and achieved remarkable results. Chinese biofuel development has made great achievements, especially in the grain-based fuel ethanol production, has begun to take shape. US scientists latest research results show, as the two most widely used biofuel, biodiesel and ethanol fuel despite more favorable than fossil fuels, but it is impossible to meet the energy needs of society. The researchers found that, even if all the corn grown in the United States and largeBeans are used in the production of bio-energy, we can only satisfy 12 6 percentage percentage of gasoline and diesel demand needs of society as a whole. The first corn and soybeans to meet food, feed and other economic needs, can not all be used to produce biofuels. Biofuels are not promising, because its source – agriculture.
a highly water industry, annual agricultural water consumed up to 70 percentage, and all this just to save non-renewable energy – using oil or coal, did not take into account the production of bio-energy process and consumed during transport water, electricity, oil, etc. are also a huge amount of research, development and utilization of bio-energy can be said to be shattering of human folly.
3. Kind of biofuel
Many kinds of bio-fuel, the most important are ethanol, alternative fuels, bio-diesel, industrial alcohol and the like.
● alcohol – an organic compound, because it contains a hydroxyl significantly different carbohydrate. Methanol and ethanol are two of the simplest alcohol.
● alternative fuels – methanol, ethanol, and other denatured alcohol; containing a mixture of methanol, ethanol, and other fuels, or alcohol-gasoline blends with other fuels containing at least 85% alcohol content; gas; liquefied petroleum gas; Hydrogen ; liquefied fuel coal extract; extracting biological material from the non-alcoholic fuels (e.g. biodiesel); electricity.
● Biodiesel – A biodegradable transportation fuel for diesel generators, is generated by the ester exchange reaction occurs between the organic extract oils and fats. Biodiesel is diesel fuel nowPart of the fuel. The future may be able to replace diesel.
● Industrial alcohol – ethanol containing small amounts of toxic substances, such as methanol or gasoline, it is generally difficult to remove toxic substances by chemical or physical methods. Alcohol for industrial use are required after denaturation, otherwise, you need to pay federal Taxes on alcoholic beverages.
4. Biofuel production problems
biofuel crops by burning or decomposition of biomass farming, resulting in carbon number of decades or even centuries need biofuels to compensate emissions . For the production of biofuels, much of the land was changed to agricultural land, especially in the development of new agricultural land will destroy the ecology. Extensive use of biomass fuels also contributed to higher food prices and threaten the survival of the poor.
In order to manufacture and transport biomass fuels cause pollution, the use of carbon dioxide and water, fertilizers. Production and use of biomass fuels can reduce these problems, but even in production, biofuels may still not worth it in environmental protection on the ground, and even some studies have shown that some already in mass production of bio-ethanol is not worth it economically ─ ─ such as the energy needed to manufacture corn ethanol corn ethanol would exceed the energy can provide.
may be used for the production of Jatropha biofuel, these crops can be grown in wasteland unsuitable for food crops, almost no fertilizer nor edible seeds, less impact on food production. But some people believe it to avoid the following situation: Some farmers in third world countries, may be in order to make money, and the land originally used for the production of food crops, used to grow energy crops; even if energy crops themselves can not eat, can also be in Do notFood is planted, but there are still reduce the risk of food production.
the use of used cooking oil to produce biodiesel afterlife will not take food sources, is considered to be the true worth promoting biofuels, waste oil but contains many unwanted substances, it will increase production problems.
5. The prospects of biofuels
biofuels do not even have an unpleasant odor. Users report that soybean for biodiesel, waste gas discharged after combustion bit like the taste of french fries. Experts say that even if food prices rise, if the United States in order to curb global warming and priority to the development of biofuels, could have a bright future, in fact, bio-fuel production process are far greater than any costs of an industry, because planting the same species of plants large area, it will lead to pests, which in turn lead to human use of insecticides, pesticides into the water, the water sources of human contamination, equal to suicide, just to be able to have cheap gasoline car, this comfortable and free of modern life can not be sustained for over a decade without introducing changes to human life.
Since the 1970s, people began to use gasoline mixed fuel, corn farmers have been urging people to greater use of ethanol as a gasoline fuel. In addition to use as livestock feed and export outside the production of biofuels has now become the third largest use of corn, which is why the diversity of farming being replaced by standardized high yield, which will directly lead to the loss of species diversity.
ethanol production using corn industry last year produced a total of 1.6 billion gallons of ethanol, and the scale of production is expanding, it also means that water resourcesSource consume more and more huge. Illinois Archer – Daniels – Midland Company’s production of ethanol accounts for about half of US production, the company intends to further expand ethanol production capacity of 20 percentage.
2007 The most amazing thing is the advent of biodiesel. Experimental results show that as good use of soybean oil and diesel fuel blended with ordinary diesel fuel effect (with the exception of particularly cold weather), but much cleaner than regular diesel. However, the standard mixed fuel diesel and 20 –80 percentage percentage of soybean oil – too expensive. According to the National Biodiesel Board said, in part because of low soybean prices, the price per gallon of biodiesel from $ 400 down to $ 1.25 to $ 2.25. The price and the price of regular diesel is almost enough to make many people consider the use of biodiesel. Although low soybean prices, but the price of water needed to grow soybeans is not cheap, but the price of water policy of many countries, ignoring the human valuable water resources and its real value, there is no place for the water resources really needed and industry, puts 70 percent of water waste in agriculture, which is part of agriculture to provide food and not for men, but for the developed countries to provide fuel, if humans do not stop this suicidal behavior, eventually one day boomerang or were reprimanded for future generations.