Production of granular activated carbon from fruit stones and nutshells and evaluation of their physical, chemical and adsorption properties

被引：557

作者：

Aygün, A ^{[1
]}

Yenisoy-Karakas, S

Duman, I

机构：

[1] Tech Univ Istanbul, Inst Sci & Technol, Dept Engn Met, TR-34469 Istanbul, Turkey

[2] TUBITAK Marmara Res Ctr, Mat & Chem Technol Res Inst, TR-41470 Gebze, Kocaeli, Turkey

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2003年 / 66卷 / 2-3期

关键词：

granular activated carbon; chemical activation; adsorption isotherms; wastes utilization; physico-chemical characterization;

D O I：

10.1016/j.micromeso.2003.08.028

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

An investigation of several agricultural wastes (almond shell, hazelnut shell, walnut shell and apricot stone) revealed that their suitability for granular activated carbon production is not determined by material specific (elemental composition) but type-specific features. Granular activated carbons were evaluated for their physical (attrition, bulk density), chemical (elemental composition, % weight loss), surface (surface area, surface chemistry) and adsorption properties (iodine number, phenol and methylene blue adsorption). Pyrolysis temperature and activation time with ZnCl2 had influence on the phenol and methylene blue adsorption capacities of especially for the activated carbons produced from hazelnut and walnut shells. Adsorption isotherm data were fitted to both Langmuir and Freundlich models. The following order of suitability of raw materials for activated carbon production was established: hazelnut shell > walnut shell approximate to apricot stone > almond shell. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：189 / 195

页数：7

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