共 2 条
VAPOR-PHASE CRACKING OF EUGENOL, A LIGNIN-DERIVED BIOMASS TAR COMPOUND
被引:0
作者:
Ledesma, Elmer B.
[1
]
Hoang, Jennifer N.
[1
]
Hernandez, Valeria
[1
]
Ton, Maria N.
[1
]
Dixon, Elizabeth A.
[1
]
Nguyen, Mitchell P.
[1
]
Campos, Cristian
[1
]
机构:
[1] Univ St Thomas, Dept Chem, Houston, TX 77006 USA
来源:
PAPERS OF THE 22ND EUROPEAN BIOMASS CONFERENCE: SETTING THE COURSE FOR A BIOBASED ECONOMY
|
2014年
关键词:
pyrolysis;
gasification;
thermochemical conversion;
tar;
lignin;
modelling;
D O I:
暂无
中图分类号:
Q81 [生物工程学(生物技术)];
Q93 [微生物学];
学科分类号:
071005 ;
0836 ;
090102 ;
100705 ;
摘要:
The vapor-phase cracking of eugenol has been investigated in a nonisothermal, laminar-flow reactor at temperatures between 300-900 degrees C and a residence time of one second. Products identified by gas chromatography were oxygenated compounds such as phenols, furans, ethers, and acids, single-ring and polycyclic aromatic hydrocarbons, C1-C6 hydrocarbon gases, and carbon monoxide. Temperature had a marked effect in governing the overall product composition. Conversion of eugenol to products increased above 400 degrees C and was completed at 600 degrees C. Reaction rate parameters derived from the conversion data were A = 10(14) s(-1) and E-a = 50.7 kcal mol(-1). The oxygenated compounds were observed as products in the range 450-800 degrees C, peaking in yields below 700 degrees C. The aromatic hydrocarbons and light gases dominated the product composition above 600 degrees C, especially at 900 degrees C, the highest temperature investigated. Based on the experimental data showing the effect of temperature on product composition, reaction pathways leading to products formation are proposed.
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页码:1252 / 1257
页数:6
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