The current energy sector is undergoing a rapid evolution toward sustainability, with biomethane and hydrogen blending playing a crucial role in the decarbonization of gas networks. In Italy, the regulatory framework—defined by standards such as UNI 11885:2022, ARERA 512/2021, and the SNAM Network Code—requires certified analytical instrumentation that guarantees the highest quality and safety of products fed into the grid. In this context, SRA Instruments offers cutting-edge solutions based on micro-gas chromatography technology.
Analytical Precision and Metrological Compliance
The μPGC 990 analyzer in the NG+H2 version is an innovative system designed for the analysis of natural gas, biomethane, and blends with hydrogen up to 20%. One of the distinctive advantages of this instrument is the use of helium as the sole carrier gas, dramatically simplifying logistics and reducing operating costs compared to architectures that require mixtures of different gases.
Precision is guaranteed by compliance with international standards: the analyzers are approved by NMi according to OIML R140:2007 Class A and the MID Directive. These features ensure maximum reliability in fiscal transactions and real-time calorific value calculations, in compliance with the ISO 6976:2016 standard.
Real-Time Performance and Modularity
Complete composition analysis (CH4, CO2, C1-C6+ hydrocarbons, H2, N2, O2, and other compounds) occurs in just 2 minutes. This rapid response is essential for continuous monitoring and the safety of grid injection processes.
The analyzers are designed based on a modular architecture with "Maintainable Modules." This structure allows for selective maintenance on individual analytical channels, reducing mean time to repair (MTTR) to less than two hours and eliminating extended plant downtime. Furthermore, ATEX Zone 1 certification allows for installation in areas classified as high-risk.
Digitization and Remote Management
Integration with industrial control systems is complete. Thanks to PROstation software and WELMEC 7.2 compliance, legally relevant data is protected and easily accessible. The system supports major communication protocols, such as Modbus RTU/TCP, RS485, and 4–20 mA, allowing remote monitoring via a web browser on any device (PC, tablet, or smartphone).
In conclusion, SRA Instruments' micro-PGC solutions not only optimize the management of low-carbon gases, but also provide the technological foundation needed to actively support the energy transition and the sustainability of national infrastructure.