Tuesday, August 12, 2025
Discover how hemiformal compounds play a vital role in H2S removal. Learn about their chemistry, benefits, and applications.
With decades of combined experience, the Q2 Technologies team specializes in innovative hydrogen sulfide (H2S) scavenging solutions for the oil and gas, wastewater treatment, and industrial sectors.
When introduced into a stream afflicted with H2S, the hemiformal decomposes to release formaldehyde, which then reacts with hydrogen sulfide to form stable, non-volatile byproducts such as thiomethylene glycol. The reaction is typically fast and efficient, particularly in aqueous or mixed-phase environments. Unlike some traditional scavengers, hemiformal can maintain activity across a broad pH range and is less likely to generate problematic solids. When considering if hemiformal is the right product, certain operating conditions are reviewed, such as pH and temperature.
Hemiformal is used in a variety of upstream and midstream applications, including:
Its adaptability makes it especially useful in operations where system conditions fluctuate or where traditional triazine-based products may underperform.
While hemiformal offers many advantages, it is not a one-size-fits-all solution. The rate of formaldehyde release can vary depending on formulation and environmental conditions. Additionally, while safer than raw formaldehyde, hemiformal must still be handled with care and appropriate PPE.
For optimal results, formulation expertise and application-specific customization are key—something we at Q2 Technologies excel at delivering.
At Q2 Technologies, we’ve been at the forefront of H2S scavenger innovation for over two decades. Our hemiformal-based products (such as Pro3®) are engineered to provide targeted, efficient scavenging with reduced environmental and operational impact. We work closely with clients to match the right chemistry to the right conditions—ensuring performance, compliance, and safety.
Looking to explore whether hemiformal is the right fit for your operation?
Contact us to learn more about our tailored H2S solutions.
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Pro3® & ProM® use breakthrough non-amine/non-glyoxal H2S and Mercaptan removal technology.
Reduce chemical use by 50-75% as compared to glyoxal and MEA-Triazine.
Allows crude shippers to save on transport costs by sweetening crude to meet pipeline specifications.
Immediately remove H2S from crude oil and meet pipeline spec.
Pro3® is used by Producers, Midstreamers, and Traders and approved by major terminals and pipelines.
Pro3® & ProM® use breakthrough non-amine/non-glyoxal H2S and Mercaptan removal technology.
Reduce chemical use by 50-75% as compared to glyoxal and MEA-Triazine.
Allows crude shippers to save on transport costs by sweetening crude to meet pipeline specifications.
H2S & Mercaptan Scavenger and MEA-Triazine Manufacturers.
Proprietary H2S scavenger blends engineered to reduce solids formation in scrubbers.
Continuous gas treating equipment that prevents H2S scavenger to become overspent.
Since 2001, we bring our experience to control H2S and odor with environmentally friendly processes in the Wastewater, Pulp & Paper, Landfill Gas, and Biogas Digester industries with Enviro-Scrub® and Enviro-Scrub® Bio product lines.
Revolutionize your H2S removal process with Pro3®, the innovative non-triazine, non-amine H2S scavenger. Pro3® permanently removes hydrogen sulfide (H2S) from crude oil and liquid hydrocarbon applications, allowing you to meet pipeline specifications and increase the value of your barrels. Our solution offers significant cost savings by reducing chemical usage by 50-75% compared to traditional methods like glyoxal and MEA triazine. Pro3® is also safer and protects your assets, while providing scalability from wellheads to terminals and VLCCs.
Q2 Technologies leads the industry in pairing real-time H2S testing with precise H2S dosing treatments – all automated.
We remove H2S from millions of barrels with Pro3®. Immediately remove H2S from crude oil, meet pipeline spec.
Lower your lease operating expense, reduce chemical use by 50-75% as compared to glyoxal and MEA triazine
Pro3® non-amine scavenger increases the value of your barrels, leads to better market optionality
Pro3® provides safety & protects assets
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Since 2001, we bring our experience to control H2S and odor with environmentally friendly processes in the Wastewater, Pulp & Paper, Landfill Gas, and Biogas Digester industries with Enviro-Scrub® and Enviro-Scrub® Bio product lines.
The Pro3® chemical process is used to treat millions of barrels of crude oil and liquid hydrocarbons every month throughout major US basins with an increasing global footprint. Our team of experts will work with you to ensure we meet your commercial, operational, and safety requirements in regards to Hydrogen Sulfide (H2S) and mercaptans. You’ll be able to have a complete Hydrogen Sulfide removal system
It is a non-amine and non-glyoxal H2S removal technology, making it safe for refineries and pipelines.
Triazine-based treatment has been the go-to solution for many Producers, Midstreamers, and Refiners. But for some, implementing new technology such as non-triazine products has positively impacted their operations and has lowered their costs in their H2S removal efforts. Is one better than the other? That all depends on your use case and process conditions. Read more details here in our Triazine Vs. Non-Triazine blog.
We treat millions of barrels of crude and condensate and are successful in H2S removal to less than 10 ppm.
H2S in the oil and gas industry is very common. H2S removal products with Pro3® allows for Producers/Midstreamers to have safer operations and increase reliability. H2S compliance allows for safer transportation via pipelines which also allows for a better netback price of the barrels.
We are a leading manufacturer of H2S & Mercaptan scavenger chemistries including MEA-Triazine. We have over 20 years H2S and mercaptan removal experience in the Oil & Gas, Pulp & Paper, Wastewater, Landfill Gas, and Digester Biogas industries.
We are a leading manufacturer of H2S & Mercaptan scavenger chemistries including MEA-Triazine. We have over 20 years H2S and mercaptan removal experience in the Oil & Gas, Pulp & Paper, Wastewater, Landfill Gas, and Digester Biogas industries.
We are a leading manufacturer of H2S & Mercaptan scavenger chemistries including MEA-Triazine. We have over 20 years H2S and mercaptan removal experience in the Oil & Gas, Pulp & Paper, Wastewater, Landfill Gas, and Digester Biogas industries.
We are a leading manufacturer of H2S & Mercaptan scavenger chemistries including MEA-Triazine. We have over 20 years H2S and mercaptan removal experience in the Oil & Gas, Pulp & Paper, Wastewater, Landfill Gas, and Digester Biogas industries.
– $10K per month chemical savings by using Pro3®
– Deliveries cut by 50%
– Millions of barrels treated and hundreds of tankers and barges in spec.
– ProM® Chemistry allowed customer to meet mercaptan specifications that MEA-Triazine was unable to reach.
– H2S level reduced so that air can be discharged into atmosphere using Triazine.
-This continuous system has produced substantial economic benefits for the customer.
