NEW ARYL-CONTAINING TRIAZINE DERIVATIVES AND HYDROGEN SULFIDE AND LOW THIOL ABSORBER BASED ON THEM Russian patent published in 2024 - IPC C07D251/04 C10G29/20 C10L1/22 

FIELD: oil production.

SUBSTANCE: composition for the absorption of hydrogen sulphide and/or low thiols in a hydrocarbon or a mixture of hydrocarbons, including at least one compound of general formula (1), where R₁ and R₂ independently of each other represent -H, alkyl C₁-C₃₀, aryl C₆-C₂₄, oxyalkyl C₁-C₃₀, alkoxy C₁-C₃₀, [-CH₂-CH₂-O-]_n-H, [-CH₂-CH(CH₃)-O-]_n-H, with n=1-20, substituents X and Y independently of each other are [-CH₂-]_m, where m=0, 2-8 for substituent X and m=0-8 for substituent Y, the substituents R₃, R₄ and R₅ independently represent -H, C₁-C₃₀ alkyl, C₁-C₃₀ oxyalkyl, C₁-C₃₀ alkoxy or C₆-C₂₄ aryl, wherein the compound of formula (1) is not N-benzyl-hexahydrotriazine, hexahydro-1-(phenylmethyl)-1,3,5-triazine, tetrahydro-3,5-bis(phenylmethyl)-1,3,5-triazine-1( 2H)-butanol or 1-benzyl-3,5-dioctyl-1,3,5-triazinane, and at least one solvent. The invention also relates to a method for reducing the concentration of hydrogen sulphide and/or low thiols in a hydrocarbon or a mixture of hydrocarbons, including the introduction of at least one liquid hydrocarbon composition according to the invention.

EFFECT: high degree of solubility of the products of interaction of the absorbent with hydrogen sulphide and/or low thiols, as well as long-term and stable operation of oil field, pumping and/or oil refining equipment when using the invention.

18 cl, 6 tbl, 2 dwg, 26 ex