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 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Aho A, Tokarev A, Backman P, Kumar N, Eranen K, Hupa M, Holmbom B, Salmi T, Murzin DY
Publisher: SPRINGER/PLENUM PUBLISHERS
Publication year: 2011
Journal: Topics in Catalysis
Journal acronym: TOP CATAL
Volume number: 54
Issue number: 13-15
Start page: 941
End page: 948
Number of pages: 8
ISSN: 1022-5528


Abstract

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.


Keywords

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

Last updated on 2019-23-09 at 03:11