Study on Optimization Experiment of SCR Denitrification Technologies in a Coal-fired Power Plant

Optimization experiment of SCR denitrification technologies on a 300MW unit was conducted. Adjustment of ammonia injection quantity of corresponding AIG was conducted after measuring the SCR export NOx concentration field in 250MW load, the distribution uniformity of NOx volume fraction at the outle...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2018-01, Vol.108 (5), p.52100
Main Authors: Zhang, Limeng, Dong, Xinguang, Hou, Fanjun, Liu, Ke, Che, Gang
Format: Article
Language:English
Subjects:
Ammonia
Catalysts
Catalytic activity
Coal-fired power plants
Denitrification
Experiments
Load distribution
Optimization
Power plants
Reactors
Stress concentration
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Optimization experiment of SCR denitrification technologies on a 300MW unit was conducted. Adjustment of ammonia injection quantity of corresponding AIG was conducted after measuring the SCR export NOx concentration field in 250MW load, the distribution uniformity of NOx volume fraction at the outlet of both reactor A and B was improved significantly, where the relative standard deviation of NOx reduced respectively from 29.83% to 13.01% and 24.54% to 9.26%, simultaneously, the amount of ammonia escape of A, B reactor decrease respectively by 24.76%, 19.45%. The results of optimization experiment show that, optimal adjustment can improve the NOx concentration distribution, reduce the amount of ammonia escape in a certain extent, and judge whether the catalytic activity of the regional catalyzer is in good condition. As to the area where catalyst is ineffective, the effect of optimization experiment is limited, the catalyzer should be the timely replacement, so as to better protect downstream equipment.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/108/5/052100