Are pyrolysis and gasification 2 different method?
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The main difference is that they use less oxygen than traditional mass-burn incineration. ... The pyrolysis process thermally degrades waste in the absence of air (and oxygen). Gasification is a process in which materials are exposed to some oxygen, but not enough to allow combustion to occur.
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Biomass gasification proceeds via a two-step process; pyrolysis followed by gasification that includes gas and tars reforming plus char and soot conversion. ... The volatile hydrocarbons and char are subsequently converted to syngas in the presence of steam in the second step called gasification.
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