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Difference between revisions of "Pyrolysis"
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=== Origin and composition === | === Origin and composition === | ||
Since all kind of biowaste contains hydrocarbonaceous material it can also be processed via pyrolysis. However, the composition of the feedstock has an impact on the pyrolysis process and therewith on the products which can be obtained | Since all kind of biowaste contains hydrocarbonaceous material it can also be processed via pyrolysis. However, the composition of the feedstock has an impact on the pyrolysis process and therewith on the products which can be obtained. | ||
=== 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-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" />: | ||
* Physical pre-treatments | * Physical pre-treatments | ||
** Sizing (e.g. chipping, grinding) | ** Sizing (e.g. chipping, grinding) | ||
** Densification (e.g. pressure-densification) | ** Densification (e.g. pressure-densification) | ||
* Chemical pre- | * Chemical pre-treatment | ||
** Acid and alkali pre-treatment (e.g for the removal of minerals) | ** Acid and alkali pre-treatment (e.g for the removal of minerals) | ||
** Hydrothermal pre-treatment (e.g. torrefaction) | ** Hydrothermal pre-treatment (e.g. torrefaction) | ||
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=== Char === | === Char === | ||
[[File:Charcoal.jpg|thumb|Wood-based char]] | |||
As mentioned the functional properties of char may vary which includes carbon content, functional groups, heating value, surface area, and pore-size distribution. The application possibilities are versatile, the char can be used as soil amendment for carbon sequestration, soil fertility improvement, and pollution remediation. Furthermore the char can be used for catalytic purposes, energy storage, or sorbent for pollutant removal from water or flue-gas. | As mentioned the functional properties of char may vary which includes carbon content, functional groups, heating value, surface area, and pore-size distribution. The application possibilities are versatile, the char can be used as soil amendment for carbon sequestration, soil fertility improvement, and pollution remediation. Furthermore the char can be used for catalytic purposes, energy storage, or sorbent for pollutant removal from water or flue-gas. | ||