Characterization of tar formation during high temperature gasification of different chemical compositions in biomass

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Zubair Yahaya, Ahmad^1 ; Rao Somalu, Mahendra^1 ; Muchtar, Andanastuti^1^2 ; Anwar Sulaiman, Shaharin^3 ; Wan Daud, Wan Ramli^1^4

Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^1

Centre for Materials Engineering and Smart Manufacturing (MERCU), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^2

Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, Perak

31750, Malaysia^3

Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^4

关键词: characterisation;    Chemical compositions;    Coconut shells;    Downdraft fixed beds;    Downdraft gasification;    High-temperature gasification;    Palm kernel shells;    Polycyclic aromatic hydrocarbons (PAHS);   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012142/pdf
DOI  :  10.1088/1755-1315/268/1/012142

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The characteristics of tar generated from tropical-plant-based biomass with different chemical compositions during high temperature gasification are crucial to understand the tar formation. In this paper, lignin-rich palm kernel shell (PKS) and hemicellulose and cellulose-rich coconut shell (CS) were gasified in a downdraft fixed-bed reactor at 900 °C. Fourier transform infrared spectroscopy (FTIR) and gas chromatography coupled with mass spectrometry (GC-MS) were used to examine the functional groups and tar compounds. The results of FT-IR indicate that the PKS tar has a lower intensity peak in the fingerprint region than that of CS. The GC-MS results exhibits that the higher molecular weight of tar compounds, such as polycyclic aromatic hydrocarbons (PAHs) are higher in CS tar compared to that in PKS tar. PKS tar is susceptible to create a lighter molecular weight of tar compounds, such as phenolics. Both of the materials have a great potential to be used for renewable energy feedstock.