Editing Pyrolysis (section)

===Types===
Specific types of pyrolysis include: 
* [[Carbonization]], the complete pyrolysis of organic matter, which usually leaves a solid residue that consists mostly of elemental [[carbon]].
* [[#Methane pyrolysis for hydrogen|Methane pyrolysis]], the direct conversion of methane to [[hydrogen]] fuel and separable solid [[carbon]], sometimes using molten metal catalysts.
* [[Hydrous pyrolysis]], in the presence of [[superheated water]] or steam, producing hydrogen and substantial atmospheric carbon dioxide.
* [[Dry distillation]], as in the original production of [[sulfuric acid]] from [[sulfate]]s.
* [[Destructive distillation]], as in the manufacture of [[charcoal]], [[coke (fuel)|coke]] and [[activated carbon]].
** [[Charcoal burning]], the production of charcoal.
** [[Tar]] production by destructive distillation of wood in [[tar kiln]]s.
* [[Caramelization]] of sugars.
* High-temperature [[cooking]] processes such as [[roasting]], [[frying]], toasting, and [[grilling]].
* [[Cracking (chemistry)|Cracking]] of heavier [[hydrocarbon]]s into lighter ones, as in [[oil refining]].
* [[Thermal depolymerization]], which breaks down plastics and other polymers into [[monomer]]s and [[oligomer]]s.
* [[Ceramization]]<ref name=pdcs>{{cite journal |last1=Wang |first1=Xifan |last2=Schmidt |first2=Franziska |last3=Hanaor |first3=Dorian |last4=Kamm |first4=Paul H. |last5=Li |first5=Shuang |last6=Gurlo |first6=Aleksander |title=Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry |journal=Additive Manufacturing |date=May 2019 |volume=27 |pages=80–90 |doi=10.1016/j.addma.2019.02.012 |arxiv=1905.02060 }}</ref> involving the formation of [[polymer derived ceramics]] from [[preceramic polymers]] under an [[inert atmosphere]].
* [[Catagenesis (geology)|Catagenesis]], the natural conversion of [[kerogen|buried organic matter]] to [[fossil fuels]].
* [[Flash vacuum pyrolysis]], used in [[organic synthesis]].


Other pyrolysis types come from a different classification that focuses on the pyrolysis operating conditions and heating system used, which have an impact on the yield of the pyrolysis products. 
{| class="wikitable"
! Pyrolysis
! Operating conditions
! Pyrolysis product yield (wt%)
|-
|'''Slow low temperature pyrolysis'''<ref name="auto">{{cite book |doi=10.1016/B978-0-12-804568-8.00008-1 |chapter=Pyrolysis of Biomass for Aviation Fuel |title=Biofuels for Aviation |date=2016 |last1=Jenkins |first1=R.W. |last2=Sutton |first2=A.D. |last3=Robichaud |first3=D.J. |pages=191–215 |isbn=978-0-12-804568-8 }}</ref>
|Temperature: 250-450 °C

Vapor residence time: 10-100 min

Heating rate: 0.1-1 °C/s

Feedstock size: 5-50 mm
|Bio-oil ~30

Biochar~35

Gases~35
|-
|'''Intermediate pyrolysis'''<ref name="auto2">{{cite journal |last1=Tripathi |first1=Manoj |last2=Sahu |first2=J.N. |last3=Ganesan |first3=P. |title=Effect of process parameters on production of biochar from biomass waste through pyrolysis: A review |journal=Renewable and Sustainable Energy Reviews |date=March 2016 |volume=55 |pages=467–481 |doi=10.1016/j.rser.2015.10.122 |bibcode=2016RSERv..55..467T }}</ref>
|Temperature: 600-800 °C

Vapor residence time: 0.5-20 s

Heating rate: 1.0-10 °C/s

Feedstock size: 1-5 mm
|Bio-oil~50

Biochar~25

Gases~35
|-
|'''Fast low temperature pyrolysis'''<ref name="auto"/>
|Temperature: 250-450°C

Vapor residence time: 0.5-5 s

Heating rate: 10-200 °C/s

Feedstock size: <3 mm
|Bio-oil ~50

Biochar~20

Gases~30
|-
|'''Flash pyrolysis'''<ref name="auto"/>
|Temperature: 800-1000 °C

Vapor residence time: <5 s

Heating rate: >1000 °C/s

Feedstock size: <0.2 mm
|Bio-oil ~75

Biochar~12

Gases~13
|-
|'''Hydro pyrolysis'''<ref name="auto2"/>
|Temperature: 350-600 °C

Vapor residence time: >15 s

Heating rate: 10-300 °C/s
|Not assigned
|-
|'''High temperature pyrolysis'''
|Temperature: 800-1150 °C
Vapor residence time: 10-100 min

Heating rate: 0.1-1 °C/s
|Bio-oil ~43
Biochar~22

Gases~45
|}