Technology




Carbonization


Technology Description (Abstract)



Pyrolix® technology is a pyrolysis process carried out in intermittent flow chambers heated by closed loop thermal fluid
in a temperature range of 300 – 330 °C. It is a patented technology, with the ownership rights belonging to the Federal University of Minas Gerais (UFMG), in Brazil and partner institutions.

Depending on the waste properties, it is necessary to shred the waste. The process begins with the waste being loaded by a conveyor belt to the pyrolysis chamber, which is subjected to indirect heat. In this initial phase, the process
is endothermic, and the energy for heating the thermal fluid is provided by the furnace. Exhaustion gases from the furnace and the Pyrolix® process are treated in a two stage cleaning process thus achieving zero harmful emmitions.



When the chamber reaches a certain temperature (approximately 200 °C), pyrolysis reaction starts. The reaction generates heat, which is sufficient for maintaining the running of the process. In the same way, the gases and vapors generated
in the chamber are processed and also used in the furnace as fuel to provide energy to heat the thermal fluid.

The thermal fluid operates in a closed circuit, passing through the chamber and the fluid heater, which maintains the temperature in a suitable level for the process. The carbonized waste is discharged to a cooling chamber to a temperature
below 60 °C. The Pyrolix® cycle will take up to 2.5 hours.




Important facts:


  • The Pyrolix® process deals with healthcare waste (HCW) with complete safety with no residue going to sanitary landfill and no harmfull emmitions;


  • The Pyrolix® concentrations of pollutant emmitions into the atmosphere is bellow the limits imposed by legislation (dioxins and furans, particulate matter, oxides of nitrogen and sulphur, etc.);


  • Concentration of emissions of dioxins and furans < 0.1 ng. NM-³ (0.0162 ng. NM-³);


  • Municipal solid waste charred presented PCI 24.7 MJ. Kg-1;


  • Gravimetric Yield pyrolysis process of 33%.


  • Reduction in the mass and the volume of the waste processed between 60% and 90%;


  • Elimination of leachate in the processed waste;


  • Biological waste processed Blanketing;


  • Reduction of footprint in relation to other waste treatment facilities;


  • Pyrolix® is a modular system that can be expanded to accomodate increased waste streams;





Electrical Generation


Between the heat, gases, and the Carbonized Waste Residue (CWR), there are a number of options for electrical generation. It is the size of the project and the type of waste stream, that determines how the electrical generation will be created.