scholarly journals Characterization of Pyrolysis Products Obtained During the Preparation of Bio-Oil and Activated Carbon

10.5772/39368 ◽  
2012 ◽  
Author(s):  
Rosa Miranda ◽  
Csar Sosa ◽  
Diana Bustos ◽  
Eileen Carrillo ◽  
Mara Rodrguez-Cant
Keyword(s):  
Activated Carbon ◽  
Pyrolysis Products ◽  
Bio Oil

scholarly journals Characterization of selected pyrolysis products of diseased orange wood

BioResources ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 7118-7126
Author(s):  
Carolina Kravetz ◽  
Carlos Leca ◽  
José Otávio Brito ◽  
Daniel Saloni ◽  
David C. Tilotta
Keyword(s):  
Value Added ◽  
Chemical Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Pyrolysis Products ◽  
Bio Oil ◽  
Potential Applications ◽  
Domestic Use ◽  
Immediate Analysis ◽  
Orange Trees

Orange trees in Brazil are often burned as a means of eradication when they become infected with Huanglongbing disease. Rather than destroying them, which is a low-value proposition, one potential option is to utilize the biomass through pyrolysis. In this preliminary work, orange trees (Citrus sinensis) otherwise selected for purging, were sampled and pyrolyzed at 500 °C, and the charcoal and bio-oil were evaluated for potential value-added use. The results showed that the pyrolysis process resulted in 26.3% charcoal, 57.6% bio-oil, and 16.0% non-condensable gases. Qualitative analysis of the bio-oil by gas chromatography/mass spectrometry found 178 chemical compounds; however, only 25% of those compounds could be reliably identified. Potential applications of the compounds identified in the bio-oil were determined by examining the published literature, and it was found that at least 73% of them showed promise. Finally, initial studies on the immediate analysis of the pyrolysis charcoal showed that it potentially meets the standards set forth for Brazilian domestic use.

scholarly journals Characterization of Pyrolysis Products and Kinetic Analysis of Waste Jute Stick Biomass

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 837
Author(s):  
Jayanto Kumar Sarkar ◽  
Qingyue Wang
Keyword(s):  
Fixed Bed ◽  
Maximum Temperature ◽  
Heating Rates ◽  
Pyrolysis Products ◽  
Thermogravimetric Analyzer ◽  
Potential Source ◽  
Thermochemical Process ◽  
Bio Oil ◽  
Derivative Thermogravimetry

Thermochemical process of biomass is being considered as a latest technique for the restoration of energy source and biochemical products. In this study, the influence of the different heating rates on pyrolysis behaviors and kinetic of jute stick were investigated to justify the waste jute stick biomass as a potential source of bioenergy. Pyrolysis experiments were carried out at four several heating rates of 10, 20, 30 and 40 °C/min, by utilizing the thermogravimetric analyzer (TG-DTA) and a fixed-bed pyrolysis reactor. Two different kinetic methods, Kissinger–Akahira–Sunose (KAS) and Ozawa–Flynn–Wall (OFW) were used to determine the distinct kinetic parameters. The experimental results showed that, the heating rates influenced significantly on the position of TG curve and maximum Tm peaks and highest decomposition rate of the jute stick biomass. Both the highest point of TG and the lowest point of Derivative thermogravimetry (DTG) curves were shifted towards the maximum temperature. However, the heating rates also influenced the products of pyrolysis yield, including bio-char, bio-oil and the non-condensable gases. The average values of activation energy were found to be 139.21 and 135.99 kJ/mol based on FWO and KAS models, respectively.

Energia da Biomassa: termoconversão e seus produtos

2020 ◽  
Author(s):  
Lisiane dos Santos Freitas ◽  
Roberta Menezes Santos ◽  
Diego Fonseca Bispo ◽  
Thainara Bovo Massa ◽  
Thiago Vinícius Barros ◽  
...  
Keyword(s):  
Economic Value ◽  
Thermal Conversion ◽  
Chemical Characteristics ◽  
Pyrolysis Process ◽  
New Techniques ◽  
Pyrolysis Products ◽  
Critical Knowledge ◽  
Thermochemical Process ◽  
Bio Oil

In this book, the authors briefly present a description of the main pyrolysis process, the pretreatment of biomass, the characteristics of biomass, and pyrolysis products through an upgraded methods and its application. The book is divided into ten chapters dedicated to showing the potential of the thermochemical process to convert biomass into biogas, bio-oil, pyrolysis water, and biochar, which are products that can be used as intermediates in the chemical industry, in agriculture, or as biofuels. The critical knowledge of the characteristics of the biomass and possible pretreatment methods before pyrolysis can be used to help determine the routes to obtain products with superior economic value. The main types of thermal conversion, the technologies, reactors, and catalyst used to upgrade the bio-oil into biofuels, is presented is a didactic form. The characterization of classic and new techniques is addressed in order to clarify the main information obtained about the chemical characteristics of biomass and pyrolysis products. The content also shows the importance and main applications of pyrolysis products for the economy and the environment.

Characterization of Vacuum Pyrolysis Products from Phenolic Resin Laminate Substrate

2010 ◽  
Vol 38 (1) ◽  
pp. 72-76
Author(s):  
Wen-Biao WU ◽  
Ke-Qiang QIU ◽  
Cheng-Long LI ◽  
Xiao-Qun XU
Keyword(s):  
Phenolic Resin ◽  
Pyrolysis Products ◽  
Vacuum Pyrolysis

Pyrolysis of the Caupi Bean Pod (Vigna unguiculata): Characterization of Biomass and Bio-Oil

2020 ◽  
Author(s):  
Roberta Santos ◽  
Diego Bispo ◽  
Honnara Granja ◽  
Eliana Sussuchi ◽  
André Luis Ramos ◽  
...  
Keyword(s):  
Vigna Unguiculata ◽  
Bio Oil

scholarly journals Bio-Oil Characterizations of Spirulina Platensis Residue (SPR) Pyrolysis Products for Renewable Energy Development

2020 ◽  
Vol 849 ◽  
pp. 47-52
Author(s):  
Siti Jamilatun ◽  
Aster Rahayu ◽  
Yano Surya Pradana ◽  
Budhijanto ◽  
Rochmadi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Spirulina Platensis ◽  
Pyrolysis Temperature ◽  
Renewable Energy Sources ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Oil Yield ◽  
Optimum Temperature ◽  
Pyrolysis Products ◽  
Bio Oil

Nowadays, energy consumption has increased as a population increases with socio-economic developments and improved living standards. Therefore, it is necessary to find a replacement for fossil energy with renewable energy sources, and the potential to develop is biofuels. Bio-oil, water phase, gas, and char products will be produced by utilizing Spirulina platensis (SPR) microalgae extraction residue as pyrolysis raw material. The purpose of this study is to characterize pyrolysis products and bio-oil analysis with GC-MS. Quality fuel is good if O/C is low, H/C is high, HHV is high, and oxygenate compounds are low, but aliphatic and aromatic are high. Pyrolysis was carried out at a temperature of 300-600°C with a feed of 50 grams in atmospheric conditions with a heating rate of 5-35°C/min, the equipment used was a fixed-bed reactor. The higher the pyrolysis temperature, the higher the bio-oil yield will be to an optimum temperature, then lower. The optimum temperature of pyrolysis is 550°C with a bio-oil yield of 23.99 wt%. The higher the pyrolysis temperature, the higher the H/C, the lower O/C. The optimum condition was reached at a temperature of 500°C with the values of H/C, and O/C is 1.17 and 0.47. With an increase in temperature of 300-600°C, HHV increased from 11.64 MJ/kg to 20.63 MJ/kg, the oxygenate compound decreased from 85.26 to 37.55 wt%. Aliphatics and aromatics increased, respectively, from 5.76 to 36.72 wt% and 1.67 to 6.67 wt%.

scholarly journals Pretreatment of Switchgrass for Production of Glucose via Sulfonic Acid-Impregnated Activated Carbon

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 504
Author(s):  
Yane Ansanay ◽  
Praveen Kolar ◽  
Ratna Sharma-Shivappa ◽  
Jay Cheng ◽  
Consuelo Arellano
Keyword(s):  
Activated Carbon ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Methanesulfonic Acid ◽  
Biofuel Production ◽  
Acid Catalysts ◽  
Effects Of Temperature ◽  
Carbon Catalysts ◽  
Hydrolysis Of

In the present research, activated carbon-supported sulfonic acid catalysts were synthesized and tested as pretreatment agents for the conversion of switchgrass into glucose. The catalysts were synthesized by reacting sulfuric acid, methanesulfonic acid, and p-toluenesulfonic acid with activated carbon. The characterization of catalysts suggested an increase in surface acidities, while surface area and pore volumes decreased because of sulfonation. Batch experiments were performed in 125 mL serum bottles to investigate the effects of temperature (30, 60, and 90 °C), reaction time (90 and 120 min) on the yields of glucose. Enzymatic hydrolysis of pretreated switchgrass using Ctec2 yielded up to 57.13% glucose. Durability tests indicated that sulfonic solid-impregnated carbon catalysts were able to maintain activity even after three cycles. From the results obtained, the solid acid catalysts appear to serve as effective pretreatment agents and can potentially reduce the use of conventional liquid acids and bases in biomass-into-biofuel production.

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