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Difference between revisions of "Pyrolysis"
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The pyrolysis is an endothermal process which requires the input of energy in form of heat which can either be directly (direct pyrolysis) applied via hot gases or indirectly (indirect pyrolysis) via external heating of the reactor. Compared to [[gasification]], the process takes place in an atmosphere without oxygen or at least under a limitation of oxygen. | The pyrolysis is an endothermal process which requires the input of energy in form of heat which can either be directly (direct pyrolysis) applied via hot gases or indirectly (indirect pyrolysis) via external heating of the reactor. Compared to [[gasification]], the process takes place in an atmosphere without oxygen or at least under a limitation of oxygen. | ||
In general, pyrolysis can be divided into different steps which | In general, pyrolysis can be divided into different steps which include: | ||
# Evaporation and vapourisation of water and other volatile molecules which is induced at temperatures > 100 °C | # Evaporation and vapourisation of water and other volatile molecules which is induced at temperatures > 100 °C | ||
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* Hydrocracking | * Hydrocracking | ||
* Thermal cracking | * Thermal cracking | ||
* Thermal depolymerisation | * Thermal depolymerisation | ||
=== Reactions === | === Reactions === | ||