Sampling System for a Paper Mill
Issue Identified:
The heavy use of steam during the production process requires large boilers for its generation. The thermal capacity, amounting to several tens of MW, makes the installation of a Continuous Emissions Monitoring System (CEMS) mandatory. The legally required measurements include: CO, NOx, Oâ‚‚, flow rate, and temperature. The company turned to Opus for the replacement of the old CEMS that was analyzing the flue gases of a diesel-fired steam generator. At the same time, a new boiler powered by natural gas had to be integrated. The new CEMS therefore had to analyze flue gases during operation with both diesel and natural gas.
Solution:
The CEMS is a continuous emissions monitoring system consisting of:
Sampling and transport
Sample gas treatment system
Analyzers
Sensors for physical measurements
The installed boiler can operate with a dual fuel system, either CHâ‚„ or diesel. The CEMS and the DatiSME software automatically set the validation, correction, and normalization parameters according to the type of fuel used. The steam produced by the combined cycle feeds a turbine that injects energy into the national power grid. The software records parameters related to electricity production.
Results Achieved
- Compliance with ARPA regulations
Thanks to the new CEMS, the company has been able to fully comply with current environmental regulations, continuously and accurately monitoring the parameters required by law (CO, NOx, Oâ‚‚, flow rate, temperature). This has eliminated the risk of penalties and ensured operations in line with regulatory standards. - Operational flexibility and fuel adaptability
The implementation of a CEMS capable of analyzing flue gases for both diesel and natural gas has enabled the company to efficiently manage the transition between the two fuels, without interruptions and with automated adjustment of validation and normalization parameters. - Increased efficiency and process control
Through integration with the DatiSME software, the company has achieved more precise and centralized monitoring of emissions and energy production, optimizing industrial processes and improving the plant’s sustainability.
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