Effect of the Decationization of Brown Coal from the Kansk-Achinsk Basin on the Physicochemical Properties of the Resulting Sorbents

被引：2

作者：

Kuznetsov, P. N. ^{[1
]}

Kuznetsova, L. I. ^{[1
]}

Kutikhina, E. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk, Russia

来源：

SOLID FUEL CHEMISTRY | 2008年 / 42卷 / 03期

关键词：

D O I：

10.3103/S0361521908030063

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Data are presented on the effect of the decationization of brown coal from the Kansk-Achinsk Basin with a dilute solution of hydrochloric acid on the structural characteristics of the resulting sorbents and the sorption capacities for iodine and phenol. It was found that the partial removal of metal cations (among which calcium was predominant) resulted in the formation of carbonization products with low reactivity upon steam activation. As compared with sorbents prepared from the parent coal under the same conditions, the sorbents from the decationized coal exhibited lower pore volumes, specific surface areas, and sorption capacities. To prepare efficient low-ash sorbents from decationized coal, a longer activation treatment is required.

引用

页码：153 / 159

页数：7

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