Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 133, Issue -, Pages 147-153Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2018.04.009
Keywords
Catalytic co-pyrolysis; Fusel alcohol; Aromatic hydrocarbon; Fluidized bed; Isotopic labeling
Funding
- National Natural Science Fund Program of China [51706043, 51776042]
- Jiangsu Natural Science Foundation [BK20170679]
- Key Laboratory of Coal Science and Technology, Taiyuan University of Technology
- Key Laboratory of Coal-based CO2 Capture and Geological Storage, Jiangsu Province (China University of Mining and Technology) [2017B05]
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In order to enhance aromatic hydrocarbon production, catalytic fast co-pyrolysis (co-CFP) of corn stover and fusel alcohol is conducted with ZSM-5 catalyst in a fluidized bed reactor. Effects of co-CFP temperature, catalyst loading and mass ratio of fusel alcohol to biomass on aromatic hydrocarbon yields are investigated and the experimental results show that bio-derived aromatic hydrocarbons can be formed through Diels-Alder cycloaddition and catalyst-induced hydrocarbon pool. It is found that co-CFP temperature of 550 degrees C results in the maximum aromatic hydrocarbon yield and the carbon and hydrogen yields of individual and total aromatic hydrocarbons increase dramatically with an elevated catalyst loading amount. Additionally, an apparent synergy between biomass and fusel alcohol is observed during co-CFP. With the consideration of aromatic hydrocarbon yields in bio-oil, the mass ratio of fusel alcohol to biomass of 1:1 in the blends is the best option. Moreover, isotopic labeling technique is utilized to unearth the origin of carbon and hydrogen in aromatic hydrocarbons, and the results demonstrate that carbon and hydrogen atoms from both feedstocks can coexist in the individual aromatic hydrocarbon and make up the targeted products during co-CFP of the blends.
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