FIELD: gas treatment.
SUBSTANCE: invention relates to catalytic treatment of natural gas to remove higher hydrocarbons and sulfur compounds contained therein while simultaneously converting hydrocarbons into aromatics and methane. Catalyst comprises crystalline aluminosilicate expressed by molar ratio in following way: xQ : (0.01-0.1)M2O : (0-0.08)Z2O3 : SiO2 : (0.0001-0.5)Me, wherein Q denotes tetrapropylammonium bromide; Z aluminum, gallium, or mixture thereof; x = 0-0.5; M represents at least proton or metal cation selected from sodium and potassium cations; and Me is at least one metal selected from zinc and copper. Preferably, zeolite H-ZSM-5 is employed and gas is treated at temperature above 600°C and pressure, which is prevalent in gas transportation pipelines.
EFFECT: improved gas treatment process.
5 cl, 5 tbl, 14 ex
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