Premium
Effect of active species mobility on soot‐combustion over Cs‐V catalysts
Author(s) -
Fino Debora,
Russo Nunzio,
Badini Claudio,
Saracco Guido,
Specchia Vito
Publication year - 2003
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.690490824
Subject(s) - catalysis , soot , microreactor , eutectic system , combustion , chemistry , isothermal process , activation energy , diesel fuel , diesel exhaust , kinetic energy , chemical engineering , catalytic combustion , carbon fibers , order of reaction , thermodynamics , reaction rate constant , analytical chemistry (journal) , kinetics , materials science , organic chemistry , physics , alloy , quantum mechanics , composite number , engineering , composite material
The soot combustion process promoted by some of the most promising diesel particulate combustion catalysts (Cs 2 O·V 2 O 5 , Cs 4 V 2 O 7 , CsVO 3 ) is discussed on the grounds of a theoretical analysis and an experimental test campaign involving reaction runs in microreactors (either in isothermal or in temperature‐programmed conditions) and in a DSC apparatus. Such investigations, beyond the prevalent kinetic parameters (activation energy, oxygen reaction order, preexponential kinetic constant), led to a definition of the role of catalyst‐to‐carbon contact conditions on the conversion rate. Particularly, the role of formation of eutectic liquid phases, which dominates the catalytic behavior of the Cs 2 O·V 2 O 5 catalyst, was fully elucidated on the grounds of either DSC runs or visual inspection through a heated optical microscope.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom