Removal of hydrogen chloride from gaseous streams using magnesium-aluminum oxide

被引：32

作者：

Kameda, Tomohito ^{[1
]}

Uchiyama, Naoya ^{[1
]}

Park, Kye-Sung ^{[1
]}

Grause, Guido ^{[1
]}

Yoshioka, Toshiaki ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

CHEMOSPHERE | 2008年 / 73卷 / 05期

关键词：

Magnesium-aluminum oxide; Gaseous hydrogen chloride; Removal; Water vapor; Scrubbing;

D O I：

10.1016/j.chemosphere.2008.06.022

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Magnesium-aluminum oxide (Mg-Al oxide) obtained by thermal decomposition of Mg-Al layered double hydroxide (Mg-Al LDH) effectively removed HCl from gaseous streams. HCl removal was greater in the presence of added water vapor at all temperatures examined and increased with decreasing temperature in both the presence and absence of added water vapor. Wet and dry removal of gaseous HCl were attributed to the production Of MgCl(2) center dot 6H(2)O and MgCl(2) center dot 4H(2)O, respectively. For the wet scrubbing process, the reconstruction reaction of Mg-Al LDH from Mg-Al oxide was the primary mechanism for increased HCl removal. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：844 / 847

页数：4

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