METHOD OF PRODUCING AROMATIC HYDROCARBONS FROM NATURAL GAS AND APPARATUS THEREFOR Russian patent published in 2015 - IPC C07C15/00 C07C1/20 C07C2/76 C07C31/04 C10G3/00 

FIELD: chemistry.

SUBSTANCE: method includes producing synthesis gas, converting the synthesis gas into methanol, producing a concentrate of aromatic hydrocarbons and water from the methanol in the presence of a catalyst, separating the water, blowing off hydrocarbon residues from the water, separating the formed concentrate of aromatic hydrocarbons and a hydrogen-containing gas, which is at least partially used when producing synthesis gas, to change the ratio H₂:CO=1.8-2.3:1 therein. The production of aromatic hydrocarbons from methanol in the presence of a catalyst is carried out in two series-connected aromatic hydrocarbon synthesis reactors - a first low-temperature isothermic aromatic and aliphatic hydrocarbon synthesis reactor and a second high-temperature adiabatic reactor for synthesis of aromatic and aliphatic hydrocarbons from the aliphatic hydrocarbons formed in the first reactor and subsequent stabilisation in a unit for stabilising the concentrate of aromatic hydrocarbons. At least part of the hydrogen-containing gas is fed into a synthesis gas production unit and used to obtain synthesis gas using an autothermal reforming technique with a pre-reforming or non-catalytic partial oxidation unit using oxygen or oxygen-air mixtures as the oxidising agent to change the ratio according to the relationship (m.f.H₂-m.f.CO₂)/(m.f.CO+m.f.CO₂)≥2, where m.f. is the molar fraction of a component in synthesis gas. The invention also relates to an apparatus.

EFFECT: high efficiency of producing concentrates of aromatic hydrocarbons.

12 cl, 2 dwg, 1 ex