METHOD FOR VORTEX FAST PYROLYSIS OF CARBON-CONTAINING MATERIALS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC C10B49/12 

FIELD: machine engineering.

SUBSTANCE: in the cource of vortex fast pyrolysis, fine-grained material is subjected to thermal and mechanochemical exposure without oxygen access consecutively in two stages. First, substance particles are included into highly swirled vortex flow of gas suspension created in the pyrolysis reactor 3 at a temperature of 600-900°C. The contact time is 0.1-3 s. Then the gas stream purified from solid particles is sent to vortex gas intensifier, where it is accelerated in a Laval nozzle at a temperature of at least 500°C and then spin at high speed around the catalyst. The process control is performed by changing the temperature, the contact time and the nature of the catalyst. The pyrolysis reactor of a cylindrical shape comprises a pyrolysis chamber (17) with a jacket (16) in the form of thermal circuit. A gas supply pipe (18) and a nozzle (24) of a startup burner are tangentially located at the beginning of the chamber. At least two tangentially oriented branch pipes (20) are uniformly located along the chamber. The length of the pyrolysis chamber is equal to the sum of its three diameters multiplied by the number of branch pipes. The end walls (21) of the pyrolysis chamber and the axial lines of the nozzles (18, 19, 20) are parallel and are deflected by an angle of 5-10 degrees. The reactor axis is oriented horizontally with the possibility of changing inclination angle. The vortex gas intensifier is made in the form of a cylinder, in which upper part there is an inlet branch pipe configured in the form of the Laval nozzle and located tangentially. An outlet branch pipe is tangentially placed in the lower part. The catalyst unit is coaxially installed in the central part.

EFFECT: increase of lower hydrocarbons yield in pyrolysis gas, increase of gas combustion heat, reduction of resinous components content in liquid fuel, its use for electricity generation.

2 cl, 3 dwg