New, Biomethane Monitoring System

Over the last decade upgrading biogas plants to biomethane has become widespread in some countries where production of biogas from the collection systems in urban waste dumps, wastewater treatment plants and from digestion were already consolidated with anaerobic digestion of agricultural and agro-industrial biomasses.

ETG’s new 8500 M is a complete package for biomethane gas analysis. The system includes a pre-treatment sample system enabling connection to raw biogas sources, the 8500 M system measures CH4, H2S, CO2, O2, LHV, HHV, water dew point , relative density and Wobbe Index.  The system includes ETG’s proprietary software, a monitor touch screen, alarms, Digital Input and Digital output and is delivered within a single cabinet and ready for operation. The operating principles include an NDIR analyser for CH4 and CO2, a paramagnetic analyser for O2 and a TDLAS analyser for H2S dew point measurement.

The 8500 M complies with the Italian UNI/TR 11537 Standard for the introduction of biomethane in transport networks and distribution of natural gas. This analyser offers operators real-time analysis, displays the last 30 minutes of analysis data, automatic calibration of CH4, CO2 and O2, remote access via LAN and WLAN and CSV downloadable data. This compact unit measures 1600x800x600mms, weighs in at 105Kg and the enclosure is manufactured from AISI 304 stainless steel. The communication protocol options are Modbus , Profibus and Ethernet.