METHOD FOR PRODUCING A BIOCOAL-BASED SORBENT AND THERMAL ENERGY FROM SUNFLOWER HUSKS AND AN INSTALLATION FOR ITS IMPLEMENTATION Russian patent published in 2021 - IPC B01J20/20 C10B49/00 F23G7/00 C10L8/00 C10B53/00 F23G5/27 

FIELD: waste processing.

SUBSTANCE: group of inventions relates to the rapid vortex oxidative pyrolysis of plant biomass waste and can be used to obtain a bio-coal-based sorbent and thermal energy for the disposal of sunflower husk waste. The method for producing a biocoal-based sorbent and thermal energy from sunflower husks consists in thermal processing of sunflower husks, and the thermal processing of sunflower husks is carried out by vortex oxidative pyrolysis, while the drying of sunflower husks begins before entering the reactor, in a mixer; sunflower husk from the receiving hopper by means of an axial screw conveyor enters the feeding hopper, then by a screw feeder into the mixer, which simultaneously receives hot steam-gas pyrolysis products selected following an air-cooled cyclone, then a mixture of sunflower husk and steam-gas pyrolysis products passes through a recirculation fan and is fed through a straight flow burner with a divider into a vortex cyclone reactor, in which oxidative pyrolysis begins at temperatures of 300-400°C; simultaneously with the introduction of sunflower husk into the same zone of the vortex cyclone reactor, hot secondary blast air heated in the cooling casing of an air-cooled cyclone is tangentially supplied, and oxidative pyrolysis ends in an air-cooled cyclone at temperatures of 330-420°C, while it simultaneously separates solid particles from vapor-gas pyrolysis products that fall into a thermally insulated collection hopper and are a biocoal-based sorbent, and the vapor-gas products of oxidative pyrolysis leave the air-cooled cyclone and leave the installation.

EFFECT: obtaining bio-coal for use as a sorbent with good oil capacity (oil absorption capacity) and environment-friendly pure solid fuel, as the main product and steam-gas fuel for thermal energy generation, as a by-product.

6 cl, 1 dwg