COKE FORMATION IN THE HYDROCARBONS PYROLYSIS REACTORS REDUCTION METHOD Russian patent published in 2019 - IPC C10G9/16 

FIELD: chemistry.

SUBSTANCE: invention relates to the furnaces tubular reactors coke formation reducing method during the hydrocarbons pyrolysis process conducting in the presence of water vapor by the sulfidizing chemical supply into the water vapor or into the hydrocarbon feedstock. Method is characterized in the fact that used for the water vapor production inhibiting composition is supplied to the process water in the amount of 1–300 ppm to the supplied hydrocarbon feedstock, consisting of a neutralizing amine, as which the monoethanolamine, or the diethanolamine, or the triethanolamine, the volatile amine are used, as which the morpholine, or the methoxypropylamine, or the diethylamine are used, and compounds, which are both the oxygen absorber and the for free radicals acceptor, as which the carbohydrazide, or the diethylhydroxylamine, or the methyl ethyl ketoxime are used in the following ratio of components (wt.%): monoethanolamine, or diethanolamine, or triethanolamine 25–70; morpholine, or diethylamine, or methoxypropylamine 1–70; carbohydrazide, or methyl ethyl ketoxime, or diethylhydroxylamine 1–10; water 1–30.

EFFECT: use of the proposed method allows to reduce the coke formation in the pyrolysis process.

1 cl, 1 tbl, 10 ex