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Acetylene (C2H2)

DETECT C2H2 IN REAL TIME & IN SITU WITH UP TO PPB PRECISION

Acetylene

Major application

nanoplus lasers detect acetylene detection in numerous applications, such as quality control, breath gas analysis as well as explosion prevention.

Tunable diode laser spectroscopy allows measuring C2H2 with up to ppb precision in real time and in situ. Providing long-term stability and requiring little maintenance, nanoplus lasers are suitable for operation in harsh environments.

WHICH ABSORPTION LINE IS THE PERFECT ONE FOR YOUR APPLICATION?

Typical wavelength

Select your target wavelength

nanoplus offers various wavelengths to target the vibrational-rotational bands of aceytylene. Select the target wavelength that fits your application best.

The literature recommends several options. They are illustrated in the graphic on the right, which shows the relative intensities of the possible absorption lines. To define the most suitable C2H2 wavelength for your application, you may have a look at our literature recommendations below or refer to the HITRAN database from the Smithsonian Institute.

We present the most common Distributed Feedback lasers for C2H2 detection below. Learn more about their specifications.

Factors which you should consider in your setup

Above wavelengths as well as further customized wavelengths for acetylene detection are available from nanoplus.

When you choose your wavelength, you have to consider your product set up, environment and nature of the measurement.

These factors influence the optimum wavelength for your application. Do have a look at the Hitran Database to further evaluate your choice of wavelengths. Our application experts are equally happy to discuss with you the most suitable wavelength for your application.

Let us know the wavelength you require with an accuracy of 0.1 nm!

Read More

Further Reading

Applications & Papers

We compiled several papers on acetylene detection based on tunable diode laser absorption spectroscopy. Refer to below literature list to read more or select your paper by application.

Applications
C2H2
Explosion prevention

Acetylene (C2H2) is used for gas welding, because the flame is easily adjustable. At the same time, acetylene is highly explosive when it mixes with oxygen or when there is a sudden change in pressure or temperature. Even at relatively low temperatures, like 306°, a little electric spark is sufficient to cause an explosion. For workers' safety the acetylene concentration has to be continuously monitored.

C2H6 & C2H2
Monitoring of breath gas: C2H6 and C2H2

Medical breath analysis considers ethane and acetelyne as a biomarkers for asthma, schizophrenia or lung cancer. The research field of breath analysis uses methane as a biomarker for intestinal problems.

[ 10 ]
C2H2
Process Control: C2H2

Acetylene is a by-product in the cracking process of ethylene production. The petrochemical industry minimizes the compound via hydrogenation. This process enhances the purity and quality of the manufactured ethylene.

[ 7 , 2 ]
Papers & Links
# 2 Advanced Gas Sensing Applications Above 3 µm with DFB Laser Diodes
L. Naehle, L. Hildebrandt, M. Fischer, J. Koeth, Gases & Instrumentation, March/April 2012, pp. 25 - 28,
# 5 DFB lasers exceeding 3 µm for industrial applications
L. Naehle, L. Hildebrandt, Laser+Photonics, 2012, pp. 78-80,
# 7 DFB laser diodes expand hydrocarbon sensing beyond 3 µm
L. Hildebrandt, L. Naehle, Laser Focus World, January 2012, pp. 87-90,
# 8 ICLs open opportunities for mid-IR sensing
L. Naehle, L. Hildebrandt, M. Kamp, S. Hoefling, Laser Focus World, May 2013, pp. 70-73.,
# 9 DFB Lasers Between 760 nm and 16 µm for Sensing Applications
W. Zeller, L. Naehle, P. Fuchs, F. Gerschuetz, L. Hildebrandt, J. Koeth , Sensors, 10, 2010, pp. 2492-2510.,
# 13 Continuous-wave operation of type-I quantum well DFB laser diodes emitting in 3.4 µm wavelength range around room temperature
L. Naehle, S. Belahsene, M. von Edlinger, M. Fischer, G. Boissier, P. Grech, G. Narcy, A. Vicet, Y. Rouillard, J. Koeth and L. Worschech , Electron. Lett. 47, 1, Januar 2011, pp. 46-47.,
# 36 Single mode interband cascade lasers based on lateral metal gratings
R. Weih, L. Naehle, Sven Hoefling, J. Koeth, M. Kamp , Appl. Phys. Lett., 105,7, 2014, pp. 071111.,
# 74 Laser absorption diagnostic for measuring acetylene concentrations in shock tubes
I. Stranic, R. K. Hanson pp. 58-65, Journal of Quantitative Spectroscopy and Radiative Transfer, 142, July 2014, pp. 58 - 65,
# 149 Extraordinary evanescent field confinement waveguide sensor for mid-infrared trace gas spectroscopy
M. Vlk, A. Datta, S. Alberti, H. D. Yallew, V. Mittal, G. S. Murugan, J. Jagerska, Light Sci. Appl., Vol. 10, Art.26, 2021,
Do you have further questions?

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If you have any questions on above wavelengths or require advice on making your choice, our experts will assist you. Just email us or give us a call.