The Applied Analytics OMA H₂S Analyzer measures real-time H₂S concentration in liquid or gas process by monitoring the UV-Vis absorbance in a continuously drawn sample. The OMA H₂S Analyzer can analyze hydrogen sulfide in natural gas, crude oil, water, biogas and landfill gas, feed forward, lean/rich amine, stripped sour water, wastewater, syngas, flare gas, flue gas, hydrogen recycle gas, scrubber outlet gas, LPG and more.

Harvesting this rich data, the OMA H₂S Analyzer isolates the H₂S absorbance curve and provides a real-time value for H₂S concentration in your process.

H₂S occurs abundantly in the world’s fossil fuel reserves and also forms as a by-product in various industrial and biological processes. In order to produce clean-burning fuels, prevent acid rain, protect pipelines and equipment from corrosion, and — most importantly — protect workers from imminent disasters, H₂S levels are highly regulated using scrubbers, scavengers, sulfur recovery units, and other removal technologies.

To properly control the level of H₂S in fuel, wastewater, or emissions, you need a reliable method of measuring the H₂S concentration. Since safety is a major concern, only highly proven solutions are considered. For many years, that meant that customers were stuck with archaic paper tape technology, a maintenance headache with toxic consumables and frequent moving-part hardware failures.

With thousands of units shipped, the OMA H₂S Analyzer has been deployed for a wide range of applications across various industries:

• acid gas
• biogas
• catalyst pre-sulfiding
• CEMS
• CO₂ recycle
• cooling water
• crude oil
• feed forward
• flare gas

• flue gas
• fuel gas
• gasoline
• hydrogen recycle
• landfill gas
• lean amine
• LPG
• natural gas
• petroleum

• pipeline gas
• propane
• rich amine
• sales gas
• scrubber outlet
• seawater
• stack gas
• stripped sour water
• sulfur pit

H₂S Absorbance Spectrum

To measure H₂S concentration, the OMA detects the distinctive absorbance curve of pure H₂S and mathematically isolates this structure from the total sample absorbance. In accordance with Beer-Lambert Law, the OMA correlates the height of this curve directly to real-time hydrogen sulfide concentration.

Sampling: H₂S Analyzer

The OMA is built for direct analysis of the hot/wet sample, thus simplifying the scope of the sample system and retaining high sample integrity. From our vast experience in sampling design, we know that applications can be similar but are rarely identical. For this reason, we design and build sample conditioning systems on a project basis, working from the process to the drawing board.

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