The invention relates to a device for processing gaseous and solid precursors for obtaining carbonic nanotubes with applications in various scientific and technical fields. According to the invention, the device consists of a system for the supply of various gases and a system of supply with various carbonic nanostructures doped with catalysts and it comprises a thermocouple assembly (1) which controls the temperature directly in the fluid flow, an interface (2) with the synthesis plant, which is separately customized for each case, a fluid circulation path (3), a ceramic thermal insulation (4), a two-stage heating device (5) with maximum temperature of 1200°C, an external ceramic thermally-resistant insulation (6) as well as an end thermal insulation (7), an electric and mechanical interface (8), a process control unit (9), which includes the precursor supply systems, including solid precursors and the parameter control, a pyrolysis installation (10) and a thermal protection installation (11).