Catalytic Pyrolysis of Pine Biomass Over H-Beta Zeolite in a Dual-Fluidized Bed Reactor: Effect of Space Velocity on the Yield and Composition of Pyrolysis Products

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Aho A, Tokarev A, Backman P, Kumar N, Eranen K, Hupa M, Holmbom B, Salmi T, Murzin DY
Förläggare: SPRINGER/PLENUM PUBLISHERS
Publiceringsår: 2011
Tidskrift: Topics in Catalysis
Tidskriftsakronym: TOP CATAL
Volym: 54
Nummer: 13-15
Artikelns första sida, sidnummer: 941
Artikelns sista sida, sidnummer: 948
Antal sidor: 8
ISSN: 1022-5528


Abstrakt

A dual-fluidized bed reactor was applied in the pyrolysis of pine wood and catalytic upgrading of the pyrolysis vapors over H-Beta zeolite. The temperatures of the pyrolysis and catalytic upgrading reactors were 400 and 440 degrees C, respectively. The effect of space velocity on the yield and composition of pyrolysis products was investigated. It was found that the catalytic upgrading affects all pyrolysis products, except the char yield which can be considered constant at all space velocities. By lowering the space velocity the gas, water and coke yields increased at the cost of the organic phase of the bio-oil. The coke yield was fairly high, 11 wt% of the biomass, at the lowest space velocity. The spent catalysts could be regenerated by burning away the formed coke and thereby regaining the surface area and most of the acid sites.


Nyckelord

Beta zeolite, Catalytic pyrolysis, Fluidized bed reactor, Woody biomass

Senast uppdaterad 2019-19-10 vid 04:31