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Sustainable production of aromatics from bio-oils through combined catalytic upgrading with in situ generated hydrogen

Paper ID Volume ID Publish Year Pages File Format Full-Text
45586 46416 2015 8 PDF Available
Title
Sustainable production of aromatics from bio-oils through combined catalytic upgrading with in situ generated hydrogen
Abstract

•Bio-oils were upgraded through a combined catalytic process.•Aromatics were produced with a high carbon yield.•Methanol was added as the hydrogen donor and bio-oil homogenizing agent.•Hydrogen was in situ generated by reforming of methanol and low-weight components.

Pyrolysis liquids or bio-oils from rice husks are selectively converted into aromatics through a combined catalytic process, which includes two sequent steps: reforming and upgrading. Hydrogen from methanol and low-weight molecules in bio-oil is in situ generated in the reforming reactor. Methanol (16 wt% of total bio-oils) is added not only as the hydrogen donor, but also as polar solvent for homogenizing bio-oil and reducing its viscosity. Structured nickel nets are used as both the reforming catalyst and heating grid for gasifying high-boiling-point components of bio-oil. In the upgrading reactor, the combination of Co–Ru–Zr/silica with Pt-ZSM-5 gives the highest yield of aromatics (53.7%) and the lowest coke deposition (7.1%). Hydrogen for deoxygenation is generated from reforming of added methanol and low-weight molecules in bio-oil. Coke formation during fixed-bed upgrading can be significantly suppressed through the combined catalytic process.

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Keywords
Sustainable chemistry; Renewables; Catalytic upgrading; Bio-oils; Aromatics.
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Sustainable production of aromatics from bio-oils through combined catalytic upgrading with in situ generated hydrogen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 165, April 2015, Pages 547–554
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
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Full-text PDF Download
Online Support
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