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Difference between revisions of "Pyrolysis"
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=== Pre-treatment === | === Pre-treatment === | ||
The [[pre-treatment]] of the feedstock has an impact on the pyrolysis process, its efficiency, and the yield of certain products. The following pre-treatments may be considered <ref name=":0" />: | The [[Pre-treatments|pre-treatment]] of the feedstock has an impact on the pyrolysis process, its efficiency, and the yield of certain products. The following pre-treatments may be considered <ref name=":0" />: | ||
*[https://www.tech4biowaste.eu/wiki/Physical_pre-treatments#Sizing Sizing] (e.g. chipping, grinding) | |||
* [https://www.tech4biowaste.eu/wiki/Physical_pre-treatments#Densification Densification] (e.g. pressure-densification) | |||
* [https://www.tech4biowaste.eu/wiki/Physical_pre-treatments#Steam_explosion Steam explosion] | |||
* [https://www.tech4biowaste.eu/wiki/Physical_pre-treatments#Drying_(evaporation) Drying (evaporation)] (e.g. air drying, freeze-drying) | |||
* [[Chemical extraction]] (e.g. acid and alkali treatment for the removal of minerals) | |||
* [[Wet torrefaction]] | |||
*[[Ammonia fibre expansion]] | |||
* [[Decomposing]] (e.g. via fungi) | |||
== Process == | == Process == | ||
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. | ||