Catalytic pyrolysis of tobacco rob: Kinetic study and fuel gas produced
2011; Elsevier BV; Volume: 102; Issue: 23 Linguagem: Inglês
10.1016/j.biortech.2011.09.053
ISSN1873-2976
AutoresYi Yang, Tan Li, Shiping Jin, Yixin Lin, Haiping Yang,
Tópico(s)Thermal and Kinetic Analysis
ResumoThe pyrolysis kinetics of tobacco rob (TR) was investigated using thermogravimetric analysis (TGA) under inert atmosphere, adding chemicals (dolomite and NiO) as catalysts by catalytic-mixing method. The TGA results showed that mass loss and mass loss rates were affected by catalysts. The conversion rates increased while the activation energy decreased. Moreover, the thermal decomposition behaviors of TR were studied in the fixed-bed reactor using dolomite and NiO/γ-Al2O3 as catalysts by catalyst-bed method. A series of experiments had been performed to explore the effects of catalysts, and reaction temperature on the composition and yield of fuel gas. The experiments demonstrated that the catalysts had a high activity of cracking tar and hydrocarbons, as well as yielding a high fuel gas production. For both methods, dolomite and NiO revealed better catalytic performance as a view of enhancing conversion rates and increasing product gas yield.
Referência(s)