Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7077384 | Bioresource Technology | 2014 | 17 Pages |
Abstract
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 880Â m2/g, and exhibit microporous structure. The chemically activated carbons with H3PO4 have BET specific surface area up to 600Â m2/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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Zhiqi Wang, Jingli Wu, Tao He, Jinhu Wu,