Preparation of activated carbons from heavy-oil fly ashes

被引:32
作者
Caramuscio, P
De Stefano, L
Seggiani, M
Vitolo, S
Narducci, P
机构
[1] CNR, IMM, Sez Napoli, I-80124 Naples, Italy
[2] Enel Prod Ric, Litoranea Salentina, I-72020 Localita Cerano, Br, Italy
[3] Univ Pisa, Dipartimento Ingn Chim Chim Ind & Sci Mat, I-56126 Pisa, Italy
关键词
D O I
10.1016/S0956-053X(02)00118-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 [工学]; 0830 [环境科学与工程];
摘要
The use of heavy oil fly ash with high ash content (45 wt.%) as a precursor for the preparation of activated carbons has been investigated. The raw fly ash and the fly ash with lower ash content, obtained by a HCl/HF washing treatment, have been pyrolyzed at 900 degreesC and then activated with CO2 in the temperature range of 800-900 degreesC for different times. The activated carbons have been characterised as regards the surface area and the pore volume. The evolution of the porosity has been related to the burn-off degree. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:345 / 351
页数:7
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