Simultaneous removal of CO_(2), NO_(x) and SO_(x) using single stage absorption column  

作　　者：Sriram Valluri S.Komar Kawatra 

机构地区：[1]Department of Chemical Engineering,Michigan Technological University,Houghton,Ml 49930,USA

出　　处：《Journal of Environmental Sciences》2021年第5期279-287,共9页环境科学学报（英文版）

基　　金：Michigan Technological University for their continued support for our research。

摘　　要：Capturing flue gases often require multiple stages of scrubbing, increasing the capital and operating costs. So far, no attempt has been made to study the absorption characteristics of all the three gases(NO, SO_(2) and CO_(2)) in a single stage absorption unit at alkaline p H conditions. We have attempted to capture all the three gases with a single wet scrubbing column. The absorption of all three gases with sodium carbonate solution promoted with oxidizers was investigated in a tall absorption column. The absorbance was found to be 100% for CO_(2), 30% for NO and 95% for SO_(2) respectively. The capture efficiency of sodium carbonate solution was increased by 40% for CO_(2) loading, with the addition of oxidizer. Absorption kinetics and reaction pathways of all the three gases were discussed individually in detail.

关 键 词：Carbon dioxide Nitric oxide Hydrogen peroxide ABSORBANCE Kinetics 

分 类 号：X701[环境科学与工程—环境工程]