Catalytic Deoxygenation Pyrolysis of Sacha Inchi Shell Over SBA-15 Catalyst: An Analytical PY-GC/MS

2018 2nd International Conference on Environmental, Industrial and Energy Engineering

生态环境科学;能源学

Soongprasit, C.^1 ; Aht-Ong, D.^1^2 ; Sricharoenchaikul, V.^3 ; Atong, D.^4

Department of Material Science, Faculty of Science, Chulalongkorn University, Thailand^1

Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Thailand^2

Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Thailand^3

National Metal and Material Technology Center, Thailand Science Park, Thailand^4

关键词: Catalyst ratios;    Chemical compositions;    Fast pyrolysis;    Hydrocarbon compounds;    Oxygenated compounds;    Pyrolysis temperature;    SBA-15 catalysts;    Thermal condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/219/1/012016/pdf
DOI  :  10.1088/1755-1315/219/1/012016

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Upgrading of pyrolysis vapors from fast pyrolysis of Sacha inchi shell biomass (SiS) over SBA-15 catalyst (5.81 nm pore diameter) were investigated. SiS had carbon of 41.08% with combustible compounds of 82.25%. Fast pyrolysis of SiS at 400-600°C using SBA-15 as catalyst were performed by Py-GC/MS. The effects of SiS particle size, pyrolysis temperature, and biomass to catalyst ratio (B/C 1:1 and 1:5) strongly affected chemical composition of pyrolysis vapors. Without catalyst, oxygenated compounds were found as major contributor of pyrolysis vapors (60.37-80.11%). Higher pyrolysis temperature and greater amount of catalyst led to increasing of hydrocarbons (aliphatic and aromatic) while nitrogenated compounds, oxygenated compounds and phenol decreased. Significantly improvement on hydrocarbon compounds was observed from 5.46% (thermal condition) to 20.09% and 47.75% when catalysts were added to 1:1 and 1:5 at 500°C, respectively. The drawback was that N-compounds increased when amount of catalyst increased. Aromatic HC content was significantly improved when pyrolysis temperature increased from 500°C to 600°C, while aliphatic HC reached the maximum at 500°C.