Non-isothermal kinetics evaluation of buriti and inaja seed biomass waste for pyrolysis thermochemical conversion technology

Author(s):  
Vanuza O. Santos ◽  
Rayanne O. Araujo ◽  
Flaviana C. P. Ribeiro ◽  
Leandro S. Queiroz ◽  
Mariana N. Guimarães ◽  
...  
Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2984
Author(s):  
Anna Partridge ◽  
Ekaterina Sermyagina ◽  
Esa Vakkilainen

Upgrading biomass waste streams can improve economics in wood industries by adding value to the process. This work considers use of a hydrothermal carbonization (HTC) process for the residual feedstock after lignin and hemicelluloses extraction. Batch experiments were performed at 200–240 °C temperatures and three hours residence time with an 8:1 biomass to water ratio for two feedstocks: Raw spruce and spruce after lignin extraction. The proximate analysis and heating value showed similar results for both feedstocks, indicating that the thermochemical conversion is not impacted by the removal of lignin and hemicelluloses; the pretreatment processing slightly increases the heating value of the treated feedstock, but the HTC conversion process produces a consistent upgrading trend for both the treated and untreated feedstocks. The energy yield was 9.7 percentage points higher for the treated wood on average across the range temperatures due to the higher mass yield in the treated experiments. The energy densification ratio and the mass yield were strongly correlated with reaction temperature, while the energy yield was not. Lignocellulosic composition of the solid HTC product is mainly affected by HTC treatment, the effect of lignin extraction is negligible.


2021 ◽  
Vol 1034 ◽  
pp. 199-205
Author(s):  
Dewi Selvia Fardhyanti ◽  
Megawati ◽  
Haniif Prasetiawan ◽  
Noniek Nabuasa ◽  
Mohammad Arik Ardianta

Biomass is a source of alternative energy that is environmentally friendly and very promising as one of the sources of renewable energy at present. The best candidate for the biomass waste for pyrolysis raw material is sugarcane bagasse. The sugarcane bagasse is a fibrous residue that is produced after crushing sugarcane for its extraction. Sugarcane bagasse is very potential to produce bio-oil through a pyrolysis process. The advantage of utilizing sugarcane bagasse is to reduce the amount of waste volume. Pyrolysis is a simple thermochemical conversion that transforms biomass with the near absence of absence of oxygen to produce fuel. Experiments were carried out on the fixed bed reactor. The analysis was carried out over a temperature range of 300-500 °C under atmospheric conditions. Products that are usually obtained from the pyrolysis process are bio-oil, char, and gas. Product analysis was performed using Gas Chromatography (GC) and Mass Spectrometry (MS) analysis. This research is aimed to study the kinetics of the sugarcane bagasse pyrolysis process to produce bio-oil. Three different models were proposed for the kinetic study and it was found that model III gave the best prediction on the calculation of pyrolysis process. From the calculation results, kinetic parameters which include activation energy (Ea) and the k factor (A) at a temperature of 300 °C is 2.4730 kJ/mol and 0.000335 s-1, at a temperature of 400 °C is 3, 2718 kJ/mol and 0.000563 s-1, and at a temperature of 500 °C is 4.8942 kJ/mol and 0.0009 s-1.


2021 ◽  
pp. 239-264
Author(s):  
Shajalal Md Shibly ◽  
Zaira Zaman Chowdhury ◽  
Abu Nasser Mohammad Faisal ◽  
Ahmed Elsayid Ali ◽  
Arnab Barua ◽  
...  

2020 ◽  
Vol 4 (4) ◽  
pp. 1900085 ◽  
Author(s):  
De‐Chang Li ◽  
Wan‐Fei Xu ◽  
Hui‐Yuan Cheng ◽  
Kun‐Fang Xi ◽  
Bu‐De Xu ◽  
...  

2016 ◽  
Vol 20 (1) ◽  
pp. 49-57 ◽  
Author(s):  
Martins O. Omorogie ◽  
Jonathan O. Babalola ◽  
Emmanuel I. Unuabonah ◽  
Weiguo Song ◽  
Jian Ru Gong

Author(s):  
Jingjing Li ◽  
Binlin Dou ◽  
Hua Zhang ◽  
Hao Zhang ◽  
Haisheng Chen ◽  
...  

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