Corn stalks char from fast pyrolysis as precursor material for preparation of activated carbon in fluidized bed reactor.
Corn stalks char from fast pyrolysis was activated by physical and chemical activation process in a fluidized bed reactor. The structure and morphology of the carbons were characterized by N2 adsorption and SEM. Effects of activation time and activation agents on the structure of activation carbon were investigated. The physically activated carbons with CO2 have BET specific surface area up to 880 m(2)/g, and exhibit microporous structure. The chemically activated carbons with H3PO4 have BET specific surface area up to 600 m(2)/g, and exhibit mesoporous structure. The surface morphology shows that physically activated carbons exhibit fibrous like structure in nature with long ridges, resembling parallel lines. Whereas chemically activated carbons have cross-interconnected smooth open pores without the fibrous like structure.
['Wang|Zhiqi|Z|', 'Wu|Jingli|J|', 'He|Tao|T|', 'Wu|Jinhu|J|']
D000327:Adsorption D019149:Bioreactors D001709:Biotechnology D002606:Charcoal D006358:Hot Temperature D009584:Nitrogen D016062:Porosity D013997:Time Factors D014866:Waste Products D003313:Zea mays
Activation carbon Fluidized bed reactor Activating agents Bio-char