期刊
CATALYSTS
卷 10, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/catal10050508
关键词
biomass conversion; hydrogen production; kinetic models; lignocellulosic residue; thermal degradation
资金
- Colciencias (Francisco Jose de Caldas Fund)
- Universidad de La Sabana [548-2019, ING-221]
- International Relations Department of University of Alicante
Thermochemical processes for biomass conversion are promising to produce renewable hydrogen-rich syngas. In the present study, model fitting methods were used to propose thermal degradation kinetics during catalytic and non-catalytic pyrolysis (in N-2) and combustion (in synthetic air) of sugarcane residual biomass. Catalytic processes were performed over a Rh-Pt/CeO2-SiO(2)catalyst and the models were proposed based on the Thermogravimetric (TG) analysis, TG coupled to Fourier Transformed Infrared Spectrometry (TG-FTIR) and TG coupled to mass spectrometry (TG-MS). Results showed three different degradation stages and a catalyst effect on product distribution. In pyrolysis, Rh-Pt/CeO2-SiO(2)catalyst promoted reforming reactions which increased the presence of H-2. Meanwhile, during catalytic combustion, oxidation of the carbon and hydrogen present in biomass favored the release of H2O, CO and CO2. Furthermore, the catalyst decreased the overall activation energies of pyrolysis and combustion from 120.9 and 154.9 kJ mol(-1)to 107.0 and 138.0 kJ mol(-1), respectively. Considering the positive effect of the Rh-Pt/CeO2-SiO(2)catalyst during pyrolysis of sugarcane residual biomass, it could be considered as a potential catalyst to improve the thermal degradation of biomass for syngas production. Moreover, the proposed kinetic parameters are useful to design an appropriate thermochemical unit for H-2-rich syngas production as a non-conventional energy technology.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据