Experimental investigation on the mechanism for removal of NOX by solution of urea /additive

This paper introduced mass transfer theory and correlation analysis of the NOx liquid absorption. Experiments using urea as the absorbent and triethanolamine as additive were performed in the bubbling absorption reactor. The influencing factors of the NOx removal such as the oxygen existence, sulfur...

Full description

Saved in:
Bibliographic Details
Main Authors: Jianpu Yin, Yuanquan Xiong, Hongyin Xie, Zhanfei Shi, Shouzhong Zheng
Format: Conference Proceeding
Language:chi ; eng
Subjects:
Absorption
additive
Additives
denitrification
Hydrogen
Inductors
Ions
Kinetic theory
mechanism
Publishing
urea
wetting
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper introduced mass transfer theory and correlation analysis of the NOx liquid absorption. Experiments using urea as the absorbent and triethanolamine as additive were performed in the bubbling absorption reactor. The influencing factors of the NOx removal such as the oxygen existence, sulfur dioxide existence, triethanolamine existence, absorbent concentration and ammonium sulfite were studied, and the ion concentration of NH 4 + , NO 2 - , SO 3 2- and SO 4 2- in the solution was analyzed. This study has concluded that oxygen existence could increase oxidation of nitric oxide, which increased the denitrification efficiency. SO 2 existence could introduce sulfite ion and also promoted NOx removal efficiency. Triethanolamine could play a buffer and catalytic role in promoting NOx removal efficiency. Ammonium sulfite on denitrification efficiency had an obvious influence.
DOI:10.1109/RSETE.2011.5964498