TDLAS Gas Analyzer With Gas Conditioning System High Temperature Extraction Type Monitoring HCL/HF/NH3

Here are some key details about TDLAS (Tunable Diode Laser Absorption Spectroscopy) gas analyzers:

- Make use of tunable diode lasers that can be precisely tuned to the absorption wavelength of the gas to be measured.
- Lasers in the near-infrared range are commonly used, matching the absorption bands of gases like methane, H2O, CO2, CO, NH3.
- The laser beam passes through the sample gas and the amount of laser light absorbed by the target gas molecules is measured.
- The gas concentration is proportional to the measured absorption following the Beer-Lambert law.
- Extremely fast measurement response times, on the order of seconds or less. Enables real-time analysis.
- High sensitivity and selectivity. Can measure gas concentrations down to ppm or ppb levels.
- Suitable for process control and monitoring applications requiring speed and precision.
- Provides in-situ measurements without requiring extractive sampling.
- Immune to cross-interferences from other gases or changes in temperature and pressure.
- Tuning the laser wavelength mitigates interferences from other gases. Multiple lasers can be used in one TDLAS analyzer.
- Requires periodic calibration using a known concentrated certified reference gas.
- Main applications include measurement of gases like CO2, CO, CH4, H2O, NH3 in industries such as natural gas, chemicals, oil refining.
- Major suppliers include Yokogawa, ABB, Siemens, Emerson, Coulton, NEO Monitors.

In summary, TDLAS analyzers provide rapid and sensitive in-situ gas quantification for critical process monitoring applications.

Applications

☑ SCR, incineration & combustion processes

☑ Emission monitoring:Power generation, engine development, waste incineration furnaces, …

☑ Environmental monitoring: Landfill & green-house gases, livestock, …

☑ Chemical engineering: Production control & monitoring …

☑ Safety: Leak detection, refrigeration, toxic gases, .

☑ Climate control & monitoring: Livestock, climate chambers & rooms