Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics

2021 ◽  
Vol 121 ◽  
pp. 255-264
Author(s):  
Honggang Fan ◽  
Jing Gu ◽  
Yazhuo Wang ◽  
Haoran Yuan ◽  
Yong Chen ◽  
...  
2014 ◽  
Vol 535 ◽  
pp. 734-737 ◽  
Author(s):  
Qian Liu ◽  
De Kui Shen

Fractionated pyrolysis of biomass and its three main components (viz. hemicellulose, cellulose and lignin) was carried out on a thermogravimetric analyzer, which effectively separated the pyrolysis progress of different compositions. Three temperature ranges of 40-300 °C, 300-400 °C and 400-700 °C were presented with hemicellulose, cellulose and lignin as the dominant component, respectively. Fir contains much more cellulose and lignin than rice straw, and thus the weight loss in 300-400 °C is much higher, as 66.4% of the total weight loss. Rice straw contains more extractives and hemicellulose, resulting in higher mass loss in the early pyrolysis stage of 40-300 °C. The pyrolysis of biomass was predicted by hemicellulose, cellulose and lignin according to the additivity law, and the fractionated pyrolysis showed good performance in the prediction of volatile and residue yields of wood biomass. The interactions of biomass components were revealed to be unneglectable.


2020 ◽  
Vol 14 (2) ◽  
pp. 195-202 ◽  
Author(s):  
Fanjun Meng ◽  
Qiaoyan Shang ◽  
Dongliang Hua ◽  
Lei Chen ◽  
Laizhi Sun ◽  
...  

Seed-induced synthesis of ZSM-5 aggregates was carried out without organic templates. The prepared ZSM-5 aggregates were used upgrading polar sawdust-derived pyrolytic vapors for the selective production of naphthalene and alkyl naphthalene. Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments were conducted to analyze the pyrolytic product distribution and evaluate the catalyst performance. Due to the mesopores and proper acidities of ZSM-5 aggregates, the yield of naphthalene and methylnaphthalene over ZSM-5 aggregates were 36.0 and 123.7 mg/g, which were 2.7 and 2.6 times of those respectively over the commercial ZSM-5. The total selectivities of naphthalene and alkyl naphthalene could reach 61.56%.


2012 ◽  
Vol 26 (5) ◽  
pp. 2968-2974 ◽  
Author(s):  
Anqing Zheng ◽  
Zengli Zhao ◽  
Sheng Chang ◽  
Zhen Huang ◽  
Fang He ◽  
...  

2018 ◽  
Vol 32 (8) ◽  
pp. 8530-8536 ◽  
Author(s):  
Shule Wang ◽  
Henry Persson ◽  
Weihong Yang ◽  
Pär Göran Jönsson

2017 ◽  
Vol 34 (12) ◽  
pp. 3077-3084 ◽  
Author(s):  
Shilin Zhao ◽  
Meng Liu ◽  
Liang Zhao ◽  
Jianhong Lu

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