Effects of different heating patterns on the decomposition behavior of white pine wood during slow pyrolysis

Authors

  • Yajun Wang College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100
  • Kang Kang College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100
  • Zonglu Yao Key Laboratory of Energy Resource Utilization from Agricultural Residues, Chinese Academy of Agricultural Engineering, Beijing 100125, China
  • Guotao Sun College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China
  • Ling Qiu 1. College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China; 2. Northwest Research Center of Rural Renewable Energy Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Yangling 712100, China
  • Lixin Zhao Key Laboratory of Energy Resource Utilization from Agricultural Residues, Chinese Academy of Agricultural Engineering, Beijing 100125, China
  • Guan Wang Key Laboratory of Energy Resource Utilization from Agricultural Residues, Chinese Academy of Agricultural Engineering, Beijing 100125, China

Keywords:

pyrolysis, variable heating rates, constant heating rate, product yields

Abstract

This study investigated the effect of different heating rates on the pyrolysis behavior of the white pine wood residues. The raw materials were tested via two heating patterns with variable heating rates and compared with three other heating patterns with constant heating rates. The yields and characteristics of products such as char, pyrolysis oil and non-condensable gases under different heating rates were also determined. The gas, liquid, and solid phase yields of the products via heating with decreasing heating rates were similar to the yields obtained from constant heating rate at 2.3°C/min. The pyrolysis process by decreasing heating rates resulted in 30.04 % char, 44.53% bio-oil, and 25.43% non-condensable gases, which displayed higher char yield and pyrolysis gas than the other heating patterns. The results of thermo-gravimetric analysis showed that variable heating rate significantly changed the weight loss profiles during pyrolysis. It was observed during gas chromatography test that CO and CO2 were released earlier than CH4 and H2. The analysis of the chemical components confirmed that the bio-oil produced by heating process with decreasing rates contains less macromolecular organic matter content than the other patterns. Keywords: pyrolysis, variable heating rates, constant heating rate, product yields DOI: 10.25165/j.ijabe.20181105.3156 Citation: Wang Y J, Kang K, Yao Z L, Sun G T, Qiu L, Zhao L X, et al. Effects of different heating patterns on the decomposition behavior of white pine wood during slow pyrolysis. Int J Agric & Biol Eng, 2018; 11(5): 218–223.

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Published

2018-09-29

How to Cite

Wang, Y., Kang, K., Yao, Z., Sun, G., Qiu, L., Zhao, L., & Wang, G. (2018). Effects of different heating patterns on the decomposition behavior of white pine wood during slow pyrolysis. International Journal of Agricultural and Biological Engineering, 11(5), 218–223. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/3156

Issue

Vol. 11 No. 5 (2018): IJABE

Section

Renewable Energy and Material Systems

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