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Upgrading of bio-oils over equilibrium FCC catalysts. Contribution from alcohols, phenols and aromatic ethers

Paper ID Volume ID Publish Year Pages File Format Full-Text
54799 47027 2013 6 PDF Available
Title
Upgrading of bio-oils over equilibrium FCC catalysts. Contribution from alcohols, phenols and aromatic ethers
Abstract

•Alcohols, phenols and aromatic ethers were converted on equilibrium FCC catalysts.•The reactants deoxygenated mainly through dehydration and decarboxylation.•Phenol and syringol yielded mainly C4-olefins among hydrocarbons.•Methanol and trimethoxybenzene yielded mainly aromatics in the gasoline range.•Coke yields were high with trimethoxybenzene and lower with the other reactants.

The conversions of oxygenated compounds of bio-oils (alcohols, phenols and aromatic ethers) on a equilibrium FCC catalyst were studied at 500 °C during 60 s in a fixed bed laboratory reactor. Methanol, phenol and 2,6-dimethoxyphenol were dissolved in water and 1,2,4-trimethoxybenzene in benzene at 5 %wt. Identical experiments were performed over inert SiC. Conversions were very different, the highest one being that of 1,2,4-trimethoxybenzene (95.7 %wt.), followed by 2,6-dimethoxyphenol (75.0 %wt.), methanol (60.8 %wt.) and phenol (54.9 %wt.). Deoxygenation in all the reactants was from dehydration and decarboxylation. The highest yield of hydrocarbons (47.1 %wt.) and coke (16.0 %wt.) were from 1,2,4-trimethoxybenzene, which, together with methanol, yielded mainly aromatics in the gasoline range. On the contrary, phenol and syringol yielded C4-hydrocarbons with high content of olefins. The highest amounts of oxygenated compounds were produced by 2,6-dimethoxyphenol. The thermal conversions were similar to the catalytic ones in the only case of 1,2,4-trimethoxybenzene, but much lower with the other reactants. In comparison to the catalytic experiments, thermal tests yielded much more hydrocarbons with 1,2,4-trimethoxybenzene, and oxygenated compounds with 2,6-dimethoxyphenol, than the other reactants. These tests could help in the prediction of specific contributions by these reactants if bio-oils are co-processed in FCC units or upgraded over acidic catalysts.

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Keywords
Bio-oils; Co-processing; FCC; Fuels
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Upgrading of bio-oils over equilibrium FCC catalysts. Contribution from alcohols, phenols and aromatic ethers
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 212, 1 September 2013, Pages 10–15
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us