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

International Journal of Agricultural and Biological Engineering 2018年第5期11卷 218-223页

作者： Yajun Wang Kang Kang Zonglu Yao Guotao Sun Ling Qiu Lixin Zhao Guan Wang College of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100China Key Laboratory of Energy Resource Utilization from Agricultural Residues Chinese Academy of Agricultural EngineeringBeijing 100125China Northwest Research Center of Rural Renewable Energy Exploitation and Utilization Ministry of Agriculture and Rural AffairsYangling 712100China

This study investigated the effect of different heating rates on the pyrolysis behavior of the white pine wood *** raw materials were tested via two heating patterns with variable heating rates and compared with three other heating patterns with constant heating *** yields and characteristics of products such as char,pyrolysis oil and non-condensable gases under different heating rates were also *** 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℃/*** 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 *** results of thermo-gravimetric analysis showed that variable heating rate significantly changed the weight loss profiles during *** was observed during gas chromatography test that CO and CO_(2) were released earlier than CH_(4) and H_(2).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.

关键词： pyrolysis variable heating rates constant heating rate product yields

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