Optimization of the preparation of activated carbon from steam activated cornstraw black liquor for phenol removal
Abstract
The activated carbon (AC) was produced from steam activation of cornstraw black liquor. Response surface methodology (RSM) and the central composite design (CCD) were employed for determining optimal adsorbents with maximum phenol removal capacity. The operational parameters such as activation temperature (°C), duration (min) and steam velocity (SV) (Lmin-1) were chosen as independent variables in CCD. The statistical analysis indicates that the effects of activation temperature, duration, steam flow rate and combined effect of activation temperature and duration are all significant to the phenol removal capacity. The optimal condition for achieving the maximum phenol adsorption capacity is obtained as the followings: carbonization temperature (850°C), duration (2.1h) and SV (38Lh-1) with phenol removal capacity reaching 130mg/g. The BET specific surface area of AC prepared at optimal conditions could reach 800m2/g. © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.
Document Type
Journal Article
Date of Publication
2016
Publication Title
Asia-Pacific Journal of Chemical Engineering
Publisher
Wiley
School
School of Engineering
RAS ID
24440
Copyright
subscription content
Comments
Sun, Y., Zhang, J. p., Guo, F., & Zhang L. (2016). Optimization of the preparation of activated carbon from steam activated cornstraw black liquor for phenol removal. Asia-Pacific Journal of Chemical Engineering, 11(4), 594-602. Available here