Analytical Fast Pyrolysis of Glucose, Cellubiose and Cellulose: Comparison of the Pyrolytic Product Distribution

2013 ◽  
Vol 805-806 ◽  
pp. 186-190
Author(s):  
Hang Tao Liao ◽  
Yang Zhang ◽  
Qiang Lu ◽  
Chang Qing Dong
Keyword(s):  
Mass Spectrometry ◽  
Fast Pyrolysis ◽  
Product Distribution ◽  
Gas Chromatography Mass Spectrometry ◽  
Analytical Pyrolysis ◽  
Pyrolysis Gas ◽  
Pyrolysis Gas Chromatography ◽  
Pyrolytic Products ◽  
Fragmentation Reactions ◽  
Pyrolytic Product

Analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was employed for the fast pyrolysis of glucose, cellubiose and cellulose in this study. The pyrolytic products from the three glucose-based materials were determined and compared to reveal the distribution differences. The results indicated that fast pyrolysis of the three materials obtained similar pyrolytic products, including the anhydrosugars, furans, linear carbonyls and cyclopentanones, but the distribution of the pyrolytic products differed from each other. The cellulose formed more anhydrosugars, but less carbonyls and furans than the glucose and cellubiose. The glycosidic bond of the cellubiose and cellulose would favor the pyrolytic depolymerization reactions to form various anhydrosugars, while inhibit the pyrolytic fragmentation reactions to produce linear carbonyls.

Naphthalene and Alkyl Naphthalene from Catalytic Fast Pyrolysis of Biomass Over ZSM-5 Aggregates

2020 ◽  
Vol 14 (2) ◽  
pp. 195-202 ◽  
Author(s):  
Fanjun Meng ◽  
Qiaoyan Shang ◽  
Dongliang Hua ◽  
Lei Chen ◽  
Laizhi Sun ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Fast Pyrolysis ◽  
Product Distribution ◽  
Gas Chromatography Mass Spectrometry ◽  
Pyrolysis Gas ◽  
Pyrolysis Gas Chromatography ◽  
Organic Templates ◽  
Pyrolysis Of Biomass ◽  
Pyrolytic Product

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%.

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