Journal
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
Volume 7, Issue 4, Pages 547-554Publisher
WILEY-BLACKWELL
DOI: 10.1002/apj.605
Keywords
activated carbon; furfural production waste; chromium; phenol; gas separation
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Funding
- institute of processes engineering of Chinese Academy of Sciences [062702]
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Activated carbon (ACs) was produced by chemical activation of industrial furfural production waste (FPW) by different chemical activators. The carbon (HP-AC500) produced from pyrolysis of H3PO4-FPW at 500 degrees C is microporous carbon with certain proportion of mesopores whose Brunauer-Emmett-Teller (BET) surface area and pore volume could reach 751.8 m2/g and 0.63 mL/g, respectively. The carbon (ZN-AC600) produced from pyrolysis of ZnCl2-FPW at 600 degrees C is essentially microporous carbon whose BET surface area and pore volume could reach 1143 m2/g and 0.61 mL/g, respectively. ZN-AC600 carbon shows better performance in adsorbing phenol with its maximum monolayer adsorption capacity reaching 166 mg/g, while HP-AC500 carbon shows its better performance in adsorbing Cr (VI) with maximum monolayer adsorption capacity reaching 27 mg/g. The adsorption model based on Unilan together with Clausius-Clapeyron equation provides a satisfactory representation for low-pressure CO2, CH4, N2 adsorption on ZN-AC600 and HP-AC500, respectively. Both equilibrium and kinetic results show that the HP-AC500 carbon has better CO2 separation performance. Copyright (c) 2011 Curtin University of Technology and John Wiley & Sons, Ltd.
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