Technical Study on Flue Gas Continuous Emission Monitoring Systems for Power Plant

2013 ◽  
Vol 846-847 ◽  
pp. 692-695
Author(s):  
Hai Ming Zheng ◽  
Tie Qiao Guo
Keyword(s):  
Power Plant ◽  
Flue Gas ◽  
Pollution Control ◽  
Continuous Monitoring ◽  
Continuous Emission ◽  
The Past ◽  
Emission Monitoring ◽  
Technical Study ◽  
Emission Limits ◽  
Continuous Emission Monitoring

Monitoring emissions of air pollution sources has become a complex and contentious issue. Regulations for continuous monitoring of these sources have expanded dramatically in scope over the past years. To demonstrate compliance with emission limits, and as required by Pollution Control Board, the power plant shall have a Continuous Emission Monitoring (CEM) System installed in each flue of the stack for each unit. This paper will mainly design a set of CEM system for flue gas from power plant. The measurement shall conform to EPA regulations.

Research on Performance of a Mercury Continuous Emission Monitoring System

2013 ◽  
Vol 341-342 ◽  
pp. 589-592
Author(s):  
Tie Jun Yang ◽  
Liang Ke ◽  
Wei Huang ◽  
Dao Zhu Hua ◽  
Chang Jin Pan ◽  
...  
Keyword(s):  
Monitoring System ◽  
Flue Gas ◽  
Pollution Control ◽  
Field Application ◽  
Performance Tests ◽  
Continuous Emission ◽  
Mercury Emission ◽  
Emission Monitoring ◽  
Continuous Emission Monitoring ◽  
Mercury Monitoring

The environmental pollution caused by coal-fired mercury emission has received worldwide attention, because of hazards for human health. Its significant to monitor mercury emission accurately in flue gas for mercury pollution control. In this paper, a detailed description of a mercury continuous emission monitoring system (Hg CEMS) built for the detection of mercury in flue gas is presented. The key performance parameters of the Hg CEMS were discussed in detail. The Hg CEMS was installed in a power plant to monitor mercury emission in flue gas continuously. Results from a series of laboratory performance tests and field application prove that the Hg CEMS is reliable and capable for mercury detection in flue gas. The Hg CEMS can meet the requirement of mercury monitoring in China well.

Research on Continuous Emission Monitoring System in Thermal Power Plant

2013 ◽  
Vol 427-429 ◽  
pp. 1117-1120 ◽  
Author(s):  
Bing Shi ◽  
Zheng Hua Ma ◽  
Jian Ming Jiang ◽  
Suo Lin Duan
Keyword(s):  
Power Plant ◽  
Real Time ◽  
Monitoring System ◽  
Thermal Power ◽  
Continuous Emission ◽  
Emission Data ◽  
Emission Monitoring ◽  
And Control ◽  
Profibus Dp ◽  
Continuous Emission Monitoring

The system aims to collect reliable emission data in real time, provide the operator with real-time emission parameters, and guide the optimization of unit operation and control of pollutants in flue gas emissions. One kind of continuous emission monitoring system is designed based on PROFIBUS-DP protocol in power plant, the architecture of system is presented and the principle is described in detail.

Research on Particulate Material Continuous Emission Monitoring Systems Calibration

2013 ◽  
Vol 807-809 ◽  
pp. 139-143
Author(s):  
Qiang Wang ◽  
Gang Zhou ◽  
Qi Zhang ◽  
Yang Zhang ◽  
Kai Yang
Keyword(s):  
Flue Gas ◽  
Particulate Material ◽  
Data Consistency ◽  
National Standard ◽  
Monitoring Systems ◽  
Calibration Model ◽  
Tolerance Interval ◽  
Continuous Emission ◽  
Emission Monitoring ◽  
Continuous Emission Monitoring

According to the current national standard and guidelines, the paper evaluates the quality assurance procedures and requirements for the calibration of particulate matter continuous emission monitoring systems (PM-CEMS). The effect of the experimental variables such as flue gas conditions, concentrations range, additional data consistency, correlation coefficient, calibration model, confidence intervals and tolerance interval on the reliability of CEMS are presented.

scholarly journals Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation

2020 ◽  
Vol 71 (5) ◽  
pp. 239-250
Author(s):  
Zhenmin Zhang ◽  
Yujie Zhu ◽  
Jianjun Shen ◽  
Anqi Tu ◽  
Yu Wu ◽  
...  
Keyword(s):  
Power Plant ◽  
Phosphoric Acid ◽  
Monitoring System ◽  
Continuous Emission ◽  
X Ray Diffraction ◽  
X Ray ◽  
Emission Monitoring ◽  
Low Emission ◽  
Treatment Measures ◽  
Continuous Emission Monitoring

Scanning electron microscopy (SEM) micro-morphology analysis, X-ray diffraction (XRD) and energy-dispersive X-ray diffraction (EDX) component analysis were conducted on the fouling of continuous emission monitoring system (CEMS) sampling tube at the outlet of limestone-gypsum wet flue gas desulfurization (WFGD) of unit 1 in a 600 MW supercritical coal-fired power plant in Inner Mongolia Autonomous Region. The results show that the main component of fouling was ammonium dihydrogen phosphate, which was generated by the reaction between phosphoric acid in the phosphoric acid titration device and the NH3 escaping from the selective catalyst reduction (SCR) denitrification system, and corresponding treatment measures were taken. It indicates that the average value of ammonia escape was reduced from 1.79 ppm to 1.54 ppm through the ammonia injection optimization test of the SCR denitrification system (at the load of 410 MW of the unit), which effectively reduced the generation of fouling. This research provides reference for improving the reliability of coal-fired unit operation after ultra-low emission transformation.

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