CHARCOAL ABSTRACT Vivencia up an era where energy is central mionetto sergio to supply human needs.

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CHARCOAL ABSTRACT Vivencia up an era where energy is central mionetto sergio to supply human needs. However, some energy sources are depleting mionetto sergio up due to exploitation and consumption "abusive" of man. The production of charcoal is obtained by means of the wood or wood. Obtaining that wood comes through the overthrow of reforested or native trees. The charcoal is derived from wood burning or charring after this process results in the substantia nigra. It is used as fuel for heaters, fireplaces, grills and wood stoves. The way to capture, use and production means, source of geothermal mionetto sergio energy, mionetto sergio obtaining sources, advantages and disadvantages, in addition to the environmental impacts of this new alternative energy will be seen in this paper.
The Charcoal is a black substance obtained by carbonization of wood or wood. It is used as fuel for heaters, fireplaces, grills and wood stoves. Until the 50s, coal was the most used fuel in the world. The discovery of petroleum fuels, which allowed the development of combustion engines and opened greater prospects of speed and power, and the emergence of nuclear energy, coal relegated to subsidiary power supply condition. However, the availability of large deposits of coal and the low cost of the charcoal fuel that still confers an important role.
Brazil can be considered a dependent country in terms of energy use of coal as an energy source. mionetto sergio This argument would be enough to greater incentives for increased use of charcoal.
According to studies, the charcoal mionetto sergio was having a continuous decrease in consumption. Since 1999 the sector seems to be revitalizing with a slight increase, but it seems that this condition will tend to increase continue. The steel industry is responsible for consuming 85% of charcoal, while the other 15% is consumed in homes. Environmentally, the biggest advantage of charcoal is that it comes from a renewable source. But the current carbonization mionetto sergio processes are not free from pollution. However, new technologies of the carbonization process promise to further increase the benefits of their use.
Charcoal is a black substance obtained by carbonization mionetto sergio of wood or wood. It is used as fuel for heaters, fireplaces, grills and wood stoves. Considered a herbal, charcoal for medical use (activated carbon) comes from certain soft and not resinous woods (extracted from woody parts, bark and sawdust), obtained by incomplete combustion, which gives the absorbent capacity.
Since ancient times already know the use of charcoal. In ancient Egypt it was used in the purification of oils and medicinal applications. In World War II was used to remove toxic gases due to its absorbent capacity with an extremely porous material. And among Brazilian Indians there is also record of use, mixed animal fats in the treatment of tumors and malignant ulcers.
Brazil also makes use of charcoal in the industrial production (steel), a practice that has ceased to be developed in the central countries, the country ranks first in the production of this substance. Thus, about 85% of the coal produced is used in industries, households account for 9% of consumption and the commercial sector as pizzerias, bakeries and barbecue 1.5%.
Brazil stands out in the industry as the world's largest producer and consumer of charcoal is the only country in the world in which this input has an industrial application on a large scale, as the main destination, the production of pig iron and steel and ferroalloys and still silicon metal.
Household coal: Coal should not be too hard, should be highly flammable and should generate as little smoke. Its chemical composition is not essential. This carbon can be obtained at low temperatures (350-400 C).
Metallurgical coal: Used in the reduction of iron ore in blast furnaces, casting, etc. The preparation of coal demand more elaborate techniques. The carbonization should be conducted at high temperature (at least 650 C) with a very long process duration. The quality requirements for this type of coal are quite severe. From the mechanical point of view, it must be dense, somewhat brittle and have a good resistance. From the standpoint of chemical composition, the rate of volatiles and ash must be low. Coal must be at mínimo80% carbon. mionetto sergio
Coal to syngas. Driving force: The characterization criteria are less severe than the previous. The coal should not be too crumbly, its apparent density n