Biomethane analyzer

natural gasmethanemonitoring

The Biomethane TDLAS is a TDL analyzer (tunable diode laser absorption spectroscopy) for online measurement of high methane concentrations in biomethane and natural gas. It measures methane (CH4) only, is optimized for 80–100 vol.%, and the laser measurement is free of cross-sensitivity to other gas components.
Typical applications:

• Biomethane plants: gas quality before grid injection
• Biomethane CHP units
• Natural gas grid: monitoring gas composition for grid compliance
• Power-to-gas plants

What operators get:

• Accuracy of ±0.1 % of reading in the high concentration range that matters for biomethane
• A reading every second
• Automatic zero correction and patented temperature compensation, which keep maintenance low
• Up to 8 sample gas inlets with one laser methane analyzer
• 19-inch rack unit with touch display
• RS232 as standard; Profibus DP, Ethernet TCP/IP and Profinet as options

Technical data (excerpt):

• Gas component: CH4
• Measuring range: 0–100 vol.%, optimized for 80–100 vol.%
• Accuracy: ±0.1 % of reading; precision ±0.03 vol.%; resolution 0.01 vol.%
• Integration time: 1 s
• Gas flow: approx. 1 l/min; pressure range 0.8–1.2 bar (compensated)
• Sample gas inlets: 1, expandable to 8
• Housing: 19-inch rack, 400 mm deep, IP20
• Power: 230 V AC / 50 Hz, optionally 115 V AC / 60 Hz

Full specifications: Biomethane TDLAS product page on freseniusinstruments.com.