Title:
Catalytic Treatment of Pyrolysis Vapours in a Dual Fixed-Bed Reactor
Author(s):
Uzun, B.B., Putun, A.E., Putun, E.
Document(s):
Paper
Abstract:
In the present study, the aim is to choice of appropriate catalyst and operation conditions for maximizing the bio-oil yields. The upgrading of the rapid pyrolysis vapors was carried out with various catalysts (Clinoptilolite (NZ), ZSM-5, H-Y) under different conditions in a dual reactor. Both natural and synthetic zeolites were investigated for upgrading of pyrolysis vapors with various catalyst/feed ratios (C/F) when the second stage held at 400oC. The catalytic treatment with synthetic zeolites provided enhancement of the gas yields and reduction of the oil yields. Moreover, the high catalyst/feed ratio was favored to increase of gas yields. ZSM-5 was very effective in gas production, whereas natural zeolite (NZ) was in bio-oil production without any severe coking comparing with synthetic zeolites. H-Y showed a higher tendency of formation of coke and tar. According to GC analysis, after catalytic treatment, the long chains of alkanes and alkenes of the pyrolysis oil were converted to lower weight hydrocarbons. Consequently, comparing the natural zeolite with synthetics on bio-oil production, NZ showed a better effectiveness. In general, catalytic upgrading resulted with increase of isomerization. Thus gas compositions were determined after catalytic upgrading.
Keywords:
catalytic pyrolysis, pyrolysis of olive residue, bio-oil production
Topic:
Thermochemical conversion - Gasification for synthesis gas production
Subtopic:
Catalytic upgrading and syngas cleaning
Event:
18th European Biomass Conference and Exhibition
Session:
OB8.4
Pages:
802 - 808
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-OB8.4
Price:
FREE
