![]() This is important to know since the nitrogen contribution on a weight basis to the treated fluid will be the same regardless of the amine used to create the triazine. The weight of amine released will vary depending on the amine, but the moles of nitrogen released are identical. One mole of triazine, regardless of the amine used to produce the triazine, will generally react with two moles of H2S and liberate two moles of amine. The primary reaction product is dithiazine. Althoughįormaldehyde is a listed carcinogen, in this form, the formaldehyde reactivity is retained without the adverse health impact.Īmines, such as methyl amine (MA) or monoethanolamine (MEA), are used to produce water-based triazines whereas higher-molecular-weight amines, such as methoxypropylamine (MOPA), are used to produce a water-free (oil-soluble) version. Triazine is a reaction product of an amine (nitrogen-based) and formaldehyde. Triazine has been the benchmark H2S scavenger for decades, especially in the oil field. For example, if a metal salt is used in a fuel oil, it may result in the ash content limit being exceeded and require the finished fuel to be discounted in price or reprocessed. Selecting the wrong scavenger can result in negative downstream impacts. ![]() As each application may be unique, characteristics to be considered when selecting an H2S scavenger should include treatment economics, ease of handling and use, efficiency of reaction, selectivity for H2S and irreversibility. Several classes of chemicals effectively lessen the hazards associated with H2S.
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