13C-NMR Characteristics of Biomass Components and CPD Pyrolysis Simulation

Li Shaohua, Jia Huan, Che Deyong

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Journal of Northeast Electric Power University ›› 2017, Vol. 37 ›› Issue (3) : 39-46.

13C-NMR Characteristics of Biomass Components and CPD Pyrolysis Simulation

  • Li Shaohua, Jia Huan, Che Deyong
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Abstract

The characteristics of the chemical structure of the cellulose,hemicellulose and lignin,three components of biomass,were studied by nuclear magnetic resonance spectroscopy (13C-NMR).The results reveal that aromatic and aliphatic carbon-carbon ratio in cellulose was significantly higher than those in hemicellulose and lignin,5.2:1,1.9:1 and 1:1.2,respectively,which led directly to the difference of the pyrolysis products of the three components.Based on the previous studies,a chemical percolation (CPD) model for biomass devolatilization was established.The chemical structure of each component of biomass was studied by 13C-NMR,and four input parameters of CPD model were obtained.The pyrolysis yield of the three components were predicted.According to the content of each component in pine sawdust,the product yield of pine sawdust pyrolysis was calculated.

Key words

Biomass / Nuclear magnetic resonance / Cellulose / hemicellulose / Lignin / Chemical structure / Pyrolysis simulation of CPD

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Li Shaohua, Jia Huan, Che Deyong. 13C-NMR Characteristics of Biomass Components and CPD Pyrolysis Simulation. Journal of Northeast Electric Power University. 2017, 37(3): 39-46

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