We offer a solution for continuous, high-speed oxidative pyrolysis of finely dispersed fuel using thermal shock in a vortex pyrolysis chamber developed by us. The advantage of our vortex chamber is its ability, through the aerodynamics of the vortex, to controllably retain material particles in a rotating bed without entrainment for the time required to complete the thermal-mechanical processes. The vortex flow creates the most favorable conditions for thermal shock—uniform and instantaneous heating of finely dispersed fuel particles—and enables the temperature difference between the heated fuel and the carrier gas at the outlet of the heating system to be minimized (20-30 degrees Celsius). The fuel heats up in a matter of hundredths or tenths of a second. The thermal shock experienced by the material in the vortex chamber also results in significant fragmentation of the fuel, the degree of which depends on the final heating temperature.

Despite the harsh temperature conditions, the fuel maintains a free-flowing state not only in the chamber but also in the collector, allowing the heated material to be separated from the heat-transfer gas without noticeable changes in its physicochemical properties.

Oxidative pyrolysis of high-molecular-weight thermal decomposition products yields chemical products similar in composition to those produced in coke-chemical production at relatively low final temperatures. The process implemented in our unit is autothermal: a small amount of oxygen supplied to the pyrolysis chamber exothermically breaks down the high-molecular-weight thermal decomposition products of the fuel into smaller fragments. The solid portion of the fuel, being less active, does not interact with oxygen under these conditions and is not oxidized. The resins, being the highly active portion, are oxidized, maintaining the reaction.

Furthermore, our complex utilizes heat recycling, using the sensible heat of the pyrolysis gas to heat the heat-transfer gas.

The high-speed thermal processing method ensures high efficiency in the utilization of potential heat, creating favorable conditions for a controlled process to produce pyrolysis gas and semi-coke. High-quality, refined, smokeless solid fuel—semi-coke—is essential for the development of the ferrous and non-ferrous metallurgy industries, the chemical industry, and for meeting the energy needs of municipal and residential consumers.

Fuels that can be used in our complex include coal, wood waste, sunflower husks, rice, oats, buckwheat, straw, and more. It's worth noting that biomass, unlike fossil fuels, is part of the natural carbon cycle, making it more climate-neutral.

Conditions required for successful high-speed pyrolysis:

1. High heat transfer rate

2. Thermal stability of the fuel bed

3. Rapid removal of pyrolysis vapors

4. High gas velocities without entrainment of fuel particles

5. High relative velocity between gas and solid fuel particles


ALL of these conditions are met in the vortex devices we developed!

At the same time, they are a significant limitation for traditional fuel pyrolysis systems.