Industrial & Engineering Chemistry Research · 2005 · 94 citations · 16 references
Natural SciencesChemical EngineeringChemistryCatalysisInorganic ChemistryReaction EngineeringCatalytic MaterialsCatalytic Reaction KineticsChemical Kinetics ModelingIndustrial CatalysisIndustrial Catalytic ProcessesKinetic ModelingActivation EnergyCatalyst ActivityCatalytic EfficiencyGasificationPower-law ModelProduct Gas CompositionReaction Network ModelingReactive Gas Chemistry
One of the major problems for biomass gasification is the presence of tar in the product gas. We are presently investigating catalytic behavior of olivine as a prospective bed additive for biomass gasifiers for tar removal. The present investigation is a continuation of our work using pretreated olivine as a tar removal catalyst, and the effect of different gas components is described in this paper. H 2 O, CO 2, and H 2 have a strong influence on naphthalene decomposition reactions. H 2 O and CO 2 have an enhancing effect, and H 2 has an inhibiting effect. Kinetic parameters were determined in the presence of the main gas components from a gasifier using a simple power law kinetic model, and an activation energy of 213 kJ mol -1 was found over pretreated olivine as the catalyst. An attempt is made to postulate the reaction network for naphthalene decomposition in the presence of a reactive gas mixture.
16
Mechanisms of catalyst deactivation
Calvin H. Bartholomew · Applied Catalysis A General · 2001 · 3K citations