Details

Autor(en) / Beteiligte

• Li, Fengbo
• Yuan, Yin
• Huang, Zhijun
• Chen, Bingfeng
• Wang, Fosong

Titel

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

Ist Teil von

• Applied catalysis. B, Environmental, 2015-04, Vol.165, p.547-554

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •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 (16wt% 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.