Table 3: Repeated H2
S measurements of mercaptan, H2 1-Propanethiol
Without scrubber
Average SD
[ppm] [ppm] [ppm] [ppm] [ppm] [ppm]
2.09 0.07
2.14 1.98 2.08 2.17 2.11 2.05
Oil scrubber
0.20 0.02
0.19 0.22 0.22 0.20 0.18 0.21
In addition to solids, gases from the Claus process and tail gas treatment can also be fed directly into the H2
S
analyser with electrochemical detection. 10 mL in a gas- tight syringe are injected into the gas extraction chamber via the sample inlet septum. The result is available within 2 minutes. Even oxygen-free gases, such as biogases or digester gases, can be analysed reproducibly. The measuring system with continuous gas extraction automatically conditions itself between each new measurement. This makes the electrochemical sensor durable and low-maintenance.
From analysis to action – proactive H₂S management pays off
Hydrogen sulphide (H₂S) is an invisible but serious hazard – for people, equipment, and the environment. Modern, automated measurement technology enables continuous real-time monitoring and creates the basis for rapid and targeted countermeasures. Early measurement allows for faster intervention, prevents damage, avoids limit value exceedance, and reduces long-term operating costs. Investing in modern, fast H₂S analysis is therefore not only a matter of safety and environmental protection, but also an economically sensible step.
S and mixed samples using the H2 H2
Without scrubber
1.88 0.08
1.94 1.94 1.74 1.91 1.84 1.93
S standard Oil scrubber
1.77 0.08
1.80 1.90 1.74 1.79 1.68 1.71
S heating module. H2 S standard + 1-Propanethiol
Without scrubber
3.78 0.14
3.87 3.83 3.70 3.88 3.88 3.54
Oil scrubber
1.74 0.08
1.70 1.86 1.64 1.80 1.68 1.77
Figure 6: Determination of volatile H2 sulphur with the H2
S analyser.
S from Claus-process-
References
1. Demografi scher Wandel als Herausforderung für die Sicherung und Entwicklung einer kosten- und ressourceneffi zienten Abwasserinfrastruktur (Rights reserved); Dessau-Roßlau: Umweltbundesamt, 2010, only download available,
http://www.umweltbundesamt.de/uba-info-
2. U.S. Geological Survey, Mineral Commodity Summaries, January 2025, U.S. Geological Survey, Reston, Virginia;
https://pubs.usgs.gov/periodicals/mcs2025/mcs2025-sulphur.pdf
3. Oil 2025 - Analysis and forecast to 2030, International Energy Agency, June 2025,
https://www.iea.org/reports/ oil-market-report-july-2025
4. Bedarfsgerechte Dosierung von chemischen Abwasserbehandlungsmitteln zur optimalen Reduzierung von Geruch und Korrosion in Abwasserleitungen, Enrico Kerwel, Dr. Ute Urban, Tagungsband 14. Nachwuchswissenschaftlerkonferenz ost- und mitteldeutscher Fachhochschulen; 18.04.2013
Figure 7: Sample of sulphur powdered or molten form.
Interested in publishing a Technical Article?
Contact Gwyneth on +44 (0)1727 855574 or email:
gwyneth@intlabmate.com
Stirrers
Precision stirring and heating for advanced lab applications
Hamilton Company, a global leader in precision measurement and automated liquid handling solutions for over 70 years, is expanding its product portfolio with a new range of general laboratory equipment. The MagHeat, smart magnetic heater stirrer, marks the beginning of this expansion, setting the stage for Hamilton’s ambition to become a key player in the benchtop laboratory equipment market while maintaining its legacy of excellence in precision engineering.
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