With Merichem Technologies exclusive sulfur recovery technology, this patented liquid redox system uses a chelated iron solution to convert H2S into innocuous, elemental sulfur.
Our unique H2S scavengers, adsorbents, and catalyst technologies deliver cost-effective hydrogen sulfide, mercaptan, and oxygen removal across upstream, midstream, and downstream business assets as well as biogas and advanced biotech applications.
First licensed in 1980, Merichem Technologies THIOLEX™ uses our proprietary FIBER FILM® Contactor as the mass transfer device, with caustic as the treating reagent in liquid and gas hydrocarbon streams.
Our Skid-Mounted Lead-Lag Vessel Systems using SULFURTRAP® adsorbents provide reliable H2S and light mercaptan removal for oil and gas, biogas, landfill gas and other industrial streams.

We’ve treated H2S all over the world.
For over 50 years we’ve helped clients like you, reliably and economically treat H2S and other sulfur contaminants.
Our experience includes a wide variety of industry sectors, feedstocks, treating requirements, and regulations.

Engineered for reliable H2S removal, low OPEX, and easy operation across variable conditions.
Maximum Reliability | Global Footprint | Superior Support | Fabrication | 50+ Years of Experience Providing H2S Solutions
Low to moderate H2S Loads
SULFURTRAP® Absorbent Vessel System
- Lease or purchase vessel packages available now
- Continuous operation with non-bridging SULFURTRAP®
- Optional changeout & installation services available
SULFURTRAP® Non-Bridging Media
- High-capacity SULFURTRAP® adsorbents
- 0 ppm H2S outlet
- Tolerant to high CO2 & light mercaptans
- No hydroblasting for faster & safer change-outs
Moderate to High H2S Loads
LO-CAT® Liquid Redox
- Guaranteed <1 ppm H2S outlet
- Continuously regenerated catalyst
- High turndown (up to 100%)
- No liquid waste streams
- No hazardous waste products produced
Selecting the right H2S removal solution for your operations
Merichem Technologies has a solution for the H2S present in your streams. The chart offers suggested ranges for our SULFURTRAP® media and LO-CAT® liquid redox technology.
If your flow or H2S concentration is between the two areas, we are happy to help you confirm which system could be most appropriate based on the needs of your operations.




