- Title
- An experimental study on the formation of methoxyaromatics during pyrolysis of Eucalyptus pulverulenta: yields and mechanisms
- Creator
- Xu, Jing; Tahmasebi, Arash; Yu, Jianglong
- Relation
- Bioresource Technology Vol. 218, Issue October 2016, p. 743-750
- Publisher Link
- http://dx.doi.org/10.1016/j.biortech.2016.07.020
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2016
- Description
- The production of bio-oil rich in methoxyaromatics during catalytic pyrolysis of Eucalyptus pulverulenta (EP) was studied using a fixed-bed reactor in the temperature range of 300-500 °C and the bio-oil composition was analyzed by using a GC-MS. The results showed that the highest bio-oil yield of 38.45 wt% was obtained at 400 °C in the presence of Na₂CO₃, and the concentration of methoxyaromatics reached the maximum value of 63.4%(area) in the bio-oil. The major methoxyaromatics identified in bio-oil were guaiacol, syringol, 4-ethyl-2-methoxy phenol, and 1,2,4-trimethoxybenzene. The analysis of gaseous products indicated that CO₂ was the major gas at low-temperatures and concentrations of H₂ and CH₄ increased with increasing pyrolysis temperature. Na₂CO₃ promoted the formation of methoxyaromatics, while NaOH seems to have enhanced the formation of phenolics. The mechanism of the formation of methoxyaromatics during pyrolysis of EP was proposed.
- Subject
- biomass; catalytic pyrolysis; methoxyaromatics; alkaline catalyst
- Identifier
- http://hdl.handle.net/1959.13/1324455
- Identifier
- uon:25039
- Identifier
- ISSN:0960-8524
- Language
- eng
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