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Olivine as a tar removal catalyst during fluidized bed gasification of plastic waste
Author(s) -
Mastellone Maria Laura,
Arena Umberto
Publication year - 2008
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.11497
Subject(s) - fluidized bed , tar (computing) , waste management , syngas , materials science , hydrogen , yield (engineering) , chemical engineering , olivine , catalysis , chemistry , metallurgy , organic chemistry , mineralogy , engineering , computer science , programming language
Natural olivine was used as bed material during the gasification of plastic waste in a pilot‐scale bubbling fluidized bed reactor. The results indicate that it works as an excellent in‐situ tar reduction agent, considerably improving the quality of the gas produced, in terms of low tar content, high hydrogen volume fraction and large syngas yield. The phenomena concurring to the activation of the catalyst are described together with those that can contribute to deactivate it. A phenomenological description of the different stages occurring during gasification of plastic waste in a fluidized bed of olivine particles is also reported. © 2008 American Institute of Chemical Engineers AIChE J, 2008