Simultaneous treatment of HCl-SO2-NOx gas with Mg-Al layered double hydroxide intercalated with CO32- and its recycling process

被引：11

作者：

Kameda, T. ^{[1
]}

Tochinai, M. ^{[1
]}

Kumagai, S. ^{[1
]}

Yoshioka, T. ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, 6-6-07 Aoba, Sendai, Miyagi 9808579, Japan

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY | 2020年 / 17卷 / 02期

关键词：

Simultaneous treatment; HCl-SO2-NOx; CO3 center dot Mg-Al LDH; Recycling; SELECTIVE CATALYTIC-REDUCTION; HYDROGEN-CHLORIDE; HYDROCHLORIC-ACID; SIMULTANEOUS REMOVAL; LOW-TEMPERATURE; OXIDE SLURRY; NO OXIDATION; SLAKED LIME; FLUE-GAS; SO2;

D O I：

10.1007/s13762-019-02529-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study presents a method for recycling Mg-Al layered double hydroxide intercalated with CO32- (CO3 center dot Mg-Al LDH) for acid gas treatment by combining the simultaneous removal of HCl, SO2, and NOx with CO3 center dot Mg-Al LDH and regeneration using Na2CO3 solution. CO3 center dot Mg-Al LDH shows simultaneous removal capability for HCl, SO2, and NO2 with HCl-SO2-NO2 mixtures. In addition, CO3 center dot Mg-Al LDH shows simultaneous removal capability for HCl and SO2 with HCl-SO2-NO mixtures, but the removal performance for NO is low. Recycling with the HCl-SO2-NO2 mixture had little effect on the acid gas removal up to the third treatment, thereby demonstrating that it is feasible to use CO3 center dot Mg-Al LDH for recycled acid gas treatment.

引用

页码：1179 / 1184

页数：6

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