With the rapid growth of global industry and increasingly stringent environmental regulations, the demand for accurate monitoring of industrial emission sources continues to rise. FPI’s Continuous Emission Monitoring System (CEMS) provides an integrated analytical solution that enables continuous, stable, and high-precision monitoring of flue gas emissions across a wide range of industrial applications.
Technology Principle of the CEMS-2000 System
The CEMS-2000 continuous emission monitoring system adopts an in-situ extraction method with high-temperature sampling (hot-wet sampling), through which flue gas samples are extracted from the stack and transported to the analytical system for measurement.
Using multiple analytical technologies, the system continuously monitors both pollutants and key process parameters in flue gas. Sulfur dioxide (SO₂) and nitric oxide (NO) are measured using UV differential optical absorption spectroscopy (UV-DOAS), while oxygen (O₂) is analyzed by a zirconium oxide analyzer and humidity (H₂O) is measured using the limiting current method. In addition, a platinum resistance sensor, pressure sensor, and S-type Pitot tube are used to monitor flue gas temperature, pressure, and flow rate in real time.
Application Case in Vietnam Factory
Y Company is a Korean enterprise specializing in the production of textiles, fabric finishing products, and coated fabrics. The project was implemented at one of its manufacturing plants located in northern Vietnam. To comply with local environmental regulations on industrial emissions and further improve surrounding ambient air quality, Y Company partnered with FPI to deploy an advanced continuous flue gas monitoring solution, enabling real-time monitoring of emissions during plant operation.
For this project, FPI supplied the CEMS-2000 multi-gas monitoring system to support safe plant operation and efficient measurement of flue gas concentrations. The system continuously monitors SO,NOx,CO,O2 , and particulate matter concentrations, while simultaneously measuring key parameters such as flue gas temperature, flow rate, and pressure, providing comprehensive insight into emission conditions. In addition to equipment supply, FPI delivered a full range of technical services, including project evaluation, system design, on-site installation and commissioning, and after-sales support to ensure the stable operation of the monitoring system.
Key Advantages of the CEMS-2000 System
The CEMS-2000 continuous emission monitoring system integrates particulate monitoring, flue gas temperature–pressure–flow parameter measurement, and gaseous pollutant analysis into a single platform, enabling comprehensive monitoring of pollutant concentrations and key emission parameters. Its advantages include:
- The adoption of UV-DOAS technology enables simultaneous monitoring of multiple gases, providing a significantly improved signal-to-noise ratio compared with conventional technologies and ensuring precise measurement.
- An innovative hot-wet extraction sampling system effectively prevents condensation, corrosion, and particulate crystallization, ensuring long-term stable operation.
- A modular system design significantly reduces maintenance costs while enhancing system reliability.
- A user-friendly interface and intelligent software support unattended operation and improve overall operational efficiency.
The system has been widely applied to emission monitoring at stationary sources such as industrial boilers and industrial kilns, with monitoring data capable of being transmitted in real time to environmental regulatory platforms. This supports enterprises in achieving regulatory compliance while contributing to continuous improvements in environmental air quality.
As a mature solution for industrial continuous monitoring, the FPI CEMS system has demonstrated reliable performance across multiple industrial sectors. With advanced monitoring technologies and a comprehensive service network, FPI continues to support global industrial customers in achieving efficient emission management and long-term environmental compliance.
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