期刊
BIORESOURCE TECHNOLOGY
卷 162, 期 -, 页码 21-29出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.03.121
关键词
Co-gasification; Fluidized bed reactor; Biomass and plastics; Modeling; Methanol synthesis
资金
- Slovenian Research Agency (ARRS) [P2-0152, P2-0346]
- Holding Slovenske elektrarne d.o.o
Thermo-gravimetric analysis (TGA) of volatilization reaction kinetics for 50 wt.% mixtures of plastics (PE) and biomass (wood pellets) as well as for 100 wt.% plastics was conducted to predict decomposition times at 850 degrees C and 900 degrees C using iso-conversional model method. For mixtures, agreement with residence time of dual fluidized bed (DFB) reactor, treated as continuous stirred-tank reactor (CSTR), was obtained at large conversions. Mono-gasification of plastics and its co-gasification with biomass were performed in DFB pilot plant, using olivine as heterogeneous catalyst and heat transfer agent. It was found that co-gasification led to successful thermochemical conversion of plastics as opposed to mono-gasification. Unknown flow rates were determined applying nonlinear regression to energy and mass balances acknowledging combustion fuel, air, steam, feedstock, but also exiting char, tar, steam and other components in DFB gasification unit. Water-gas shift equilibrium and methanol synthesis requirements were incorporated into gasification model, based on measurements. (C) 2014 Elsevier Ltd. All rights reserved.
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