CATALYST FOR PROCESSING STABLE GAS CONDENSATE INTO AROMATIC HYDROCARBONS, METHOD FOR PRODUCTION THEREOF AND METHOD FOR PRODUCTION OF AROMATIC HYDROCARBONS USING SAME Russian patent published in 2022 - IPC B01J29/48 B01J37/08 B01J37/02 C10G35/95 

FIELD: chemistry.

SUBSTANCE: invention relates to petrochemical industry and specifically to a method of producing a catalyst for processing stable gas condensate into aromatic hydrocarbons, as well as a catalyst obtained using said method, and a method of producing aromatic hydrocarbons. Proposed method of producing catalyst consists in preparing mixture, consisting of tetraethylorthosilicate, water, tetrapropylammonium hydroxide and aluminium isopropoxide, taken in molar ratio tetraethylorthosilicate:water:tetrapropylammonium hydroxide:aluminium isopropoxide, equal to 1:34–36:0.1–0.12:0.04–0.06, obtained mixture is crystallized by hydrothermal-microwave treatment at microwave radiation power of 60 W, radiation frequency of 2.45 GHz, pressure of 3.7 MPa, temperature of 180–200 °C, for 1.4–1.6 hours, followed by temperature reduction to 150–170 °C and repeated hydrothermal-microwave treatment under the above conditions, the formed precipitate is subjected to filtration, washing with distilled water, drying for 1.5–2 hours at temperature of 180–200 °C, then the formed powder is calcined at temperature of 540–560 °C to obtain a zeolite of MFI structure in hydrogen form, after which the said zeolite is impregnated with an aqueous solution simultaneously containing zinc and chromium nitrates, the impregnated zeolite is dried for 1.5–2 hours at temperature of 70–80 °C and calcination at temperature of 540–560 °C for 3–4 hours to decompose nitrates with formation of zinc and chromium oxides. Obtained catalyst contains high-silica zeolite of structure MFI in hydrogen form, zinc oxide, chromium oxide, with the following ratio of components, wt. %: zinc oxide 1.0–1.5, chromium oxide 1.2–1.8, said zeolite is the rest, up to 100.

EFFECT: disclosed group of inventions increases efficiency of the catalyst for processing stable gas condensate into aromatic hydrocarbons, a method for production thereof and a method of producing aromatic hydrocarbons using said catalyst.

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