Review on Prepation and Application of Biochar

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Extensive application of biochar in agricultural and forestry production, environmental protection,energy and other areas has attracted widespread attention by researchers at home and abroad.By reviewing the progress on preparation and application of biochar in recent years , introduced pyrolysis,microwave carbonization,hydrothermal carbonization and analyzed the factors influence the ratio of gas,oil,and biochar,pointed out that the slow pyrolysis and medium speed pyrolysis can get more biochar ,fast pyrolysis can get more liquid product and flash pyrolysis can get more gas. Moreover, microwave carbonization can short the reaction time greatly and hydrothermal carbonization not only saved energy but also had a high production of biochar . Furthermore, described the use of biochar in agriculture , environmental protection and energy,thengave direction for the future research.

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456-460

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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