Thermochemical Conversion of Biomass Waste-Based Biochar for Environment Remediation

2020 ◽  
pp. 1-16
Author(s):  
Sudipta Ramola ◽  
Tarun Belwal ◽  
Rajeev Kumar Srivastava
Keyword(s):  
Thermochemical Conversion ◽  
Biomass Waste

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

2021 ◽  
Author(s):  
Vanuza O. Santos ◽  
Rayanne O. Araujo ◽  
Flaviana C. P. Ribeiro ◽  
Leandro S. Queiroz ◽  
Mariana N. Guimarães ◽  
...  
Keyword(s):  
Isothermal Kinetics ◽  
Thermochemical Conversion ◽  
Biomass Waste ◽  
Seed Biomass ◽  
Conversion Technology

scholarly journals Impact of Pretreatment on Hydrothermally Carbonized Spruce

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2984
Author(s):  
Anna Partridge ◽  
Ekaterina Sermyagina ◽  
Esa Vakkilainen
Keyword(s):  
Treated Wood ◽  
Hydrothermal Carbonization ◽  
Proximate Analysis ◽  
Thermochemical Conversion ◽  
Energy Yield ◽  
Strongly Correlated ◽  
Mass Yield ◽  
Biomass Waste ◽  
Heating Value ◽  
Lignin Extraction

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.

Chemical Kinetics Modeling on Bio-Oil Production from Pyrolysis of Sugarcane Bagasse

2021 ◽  
Vol 1034 ◽  
pp. 199-205
Author(s):  
Dewi Selvia Fardhyanti ◽  
Megawati ◽  
Haniif Prasetiawan ◽  
Noniek Nabuasa ◽  
Mohammad Arik Ardianta
Keyword(s):  
Sugarcane Bagasse ◽  
Alternative Energy ◽  
Fixed Bed ◽  
Raw Material ◽  
Fixed Bed Reactor ◽  
Thermochemical Conversion ◽  
Pyrolysis Process ◽  
Product Analysis ◽  
Biomass Waste ◽  
Bio Oil

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.

Thermochemical Conversion of Biomass Waste to Amorphous Phase Carbon for Treating Industrial Waste Water

2021 ◽  
pp. 239-264
Author(s):  
Shajalal Md Shibly ◽  
Zaira Zaman Chowdhury ◽  
Abu Nasser Mohammad Faisal ◽  
Ahmed Elsayid Ali ◽  
Arnab Barua ◽  
...  
Keyword(s):  
Waste Water ◽  
Amorphous Phase ◽  
Industrial Waste ◽  
Thermochemical Conversion ◽  
Industrial Waste Water ◽  
Biomass Waste

scholarly journals One‐Step Thermochemical Conversion of Biomass Waste into Superhydrophobic Carbon Material by Catalytic Pyrolysis

2020 ◽  
Vol 4 (4) ◽  
pp. 1900085 ◽  
Author(s):  
De‐Chang Li ◽  
Wan‐Fei Xu ◽  
Hui‐Yuan Cheng ◽  
Kun‐Fang Xi ◽  
Bu‐De Xu ◽  
...  
Keyword(s):  
Carbon Material ◽  
Catalytic Pyrolysis ◽  
Thermochemical Conversion ◽  
Biomass Waste ◽  
One Step

scholarly journals Chemical Recycling of WEEE Plastics—Production of High Purity Monocyclic Aromatic Chemicals

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 530
Author(s):  
Tobias Rieger ◽  
Jessen C. Oey ◽  
Volodymyr Palchyk ◽  
Alexander Hofmann ◽  
Matthias Franke ◽  
...  
Keyword(s):  
High Purity ◽  
Fractional Distillation ◽  
Gas Chromatography Mass Spectrometry ◽  
Thermochemical Conversion ◽  
Chemical Recycling ◽  
Pyrolysis Oil ◽  
X Ray ◽  
Benzene Toluene ◽  
Halogen Content ◽  
Methyl Styrene

More than 200 kg real waste electrical and electronic equipment (WEEE) shredder residues from a German dismantling plant were treated at 650 °C in a demonstration scale thermochemical conversion plant. The focus within this work was the generation, purification, and analysis of pyrolysis oil. Subsequent filtration and fractional distillation were combined to yield basic chemicals in high purity. By means of fractional distillation, pure monocyclic aromatic fractions containing benzene, toluene, ethylbenzene, and xylene (BTEX aromatics) as well as styrene and α-methyl styrene were isolated for chemical recycling. Mass balances were determined, and gas chromatography–mass spectrometry (GC-MS) as well as energy dispersive X-ray fluorescence (EDXRF) measurements provided data on the purity and halogen content of each fraction. This work shows that thermochemical conversion and the subsequent refining by fractional distillation is capable of recycling WEEE shredder residues, producing pure BTEX and other monocyclic aromatic fractions. A significant decrease of halogen content (up to 99%) was achieved with the applied methods.

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