Bio-oil and biochar from the pyrolytic conversion of biomass: A current and future perspective on the trade-off between economic, environmental, and technical indicators

Vuppaladadiyam, Arun Krishna; Vuppaladadiyam, Sai Sree Varsha; Sahoo, Arun Kumar; Murugavelh, S.; Anthony, Edward J.; Bashkar, Thallada; Zheng, Ying; Zhao, Ming Ju; Duan, Huabo; Zhao, Yan; Antunes, Elsa; Sarmah, Ajit K.; Leu, Shao‐Yuan

doi:10.1016/j.scitotenv.2022.159155

Cited by 54 publications

(8 citation statements)

References 205 publications

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“…This is because biochar production is not on a sufficient scale to meet national needs. This drawback cannot be separated from the conditions of commercial biomass pyrolysis plants, which generally operate only on a medium scale of 5–11 tons/day 91 . The linkage between government, universities, and research institutes should also not be interrupted in order to support sustainable production on a feasible commercial scale.…”

Section: Resultsmentioning

confidence: 99%

Pyrolysis of macroalgae residue from the agar industry for silica‐rich biochar and other sustainable chemicals: Process performances, product applications, and simple business scenario

Putri,

Steven,

Oktavia

et al. 2024

Biofuels Bioprod Bioref

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The macroalgae residue from the industrial agar extraction process contains a significant amount of carbon and has potential as a renewable feedstock. Unfortunately, it is often overlooked and is poorly utilized. This study aims to valorize this macroalgae residue through pyrolysis to produce silica‐rich biochar and other value‐added products in the form of biocrude oil (BCO) and biopyrolysis gas. The macroalgae residue was pyrolyzed at 300–700 °C with a heating rate of 20–40 °C/min. Yields of biochar, BCO, and gas of 62%, 25%, and 13% were obtained at a temperature of 700 °C and a heating rate of 20 °C/min. Biochar has a porous structure, a surface area exceeding 15 m2/g, and is dominated by amorphous silica of up to 13%. This silica‐rich biochar also contains Na and K, which hold potential benefits in agriculture, serving as soil ameliorants and playing a crucial role in enhancing soil fertility and promoting plant growth. In the meantime, BCO contains 29.3% carboxylic acid group as the most important chemical component. Other than that, the biopyrolysis gas contains mainly CH4 and H2 (up to 24–32%), which can act as chemical building blocks. Finally, a simple business scenario of silica‐rich biochar production reveals that it has a specific cost of 0.37 US$/kg. It could be economically viable as a soil ameliorant or fertilizer. However, challenges persist in scaling up production to an industrial scale.

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Section: Resultsmentioning

confidence: 99%

Pyrolysis of macroalgae residue from the agar industry for silica‐rich biochar and other sustainable chemicals: Process performances, product applications, and simple business scenario

Putri,

Steven,

Oktavia

et al. 2024

Biofuels Bioprod Bioref

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“…Magnetic functionalized materials are acid sensitive and its vulnerability can adversely affect the performance and stability. To avert this, some authors have suggested the use of silica to coat the magnetic composite being that silica is inert to redox processes, stable in acid medium and contains hydroxyl groups which increases the functionality of the biochar [32,51]. Separate studies of some authors noted that surface modification of nanocomposites not only eliminate aggregation but also positively impacts on the core shell structure suspension medium dispensability of nanocomposites [47,52].…”

Section: Functionalizationmentioning

confidence: 99%

Functionalized Biochars for Enhanced Removal of Heavy Metals from Aqueous Solutions: Mechanism and Future Industrial Prospects

Nworie

Mgbemena²,

Ike-Amadi

et al. 2022

J. Hum. Earth Future

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Development of efficient modified bioinspired material for the sorption of heavy metals is currently on the fore front of environmental heavy metals remediation research. Functionalized biochar for heavy metals removal is highly advantageous because of striking properties such as regenerability, simplicity, low–cost, high efficiency, and mechanical stability, chemical inertness to many organic solvent, surface polarity, functionality, chelation property and decreased hydrophobicity absent in naked biochar. This review surveyed the sources of heavy metals, the bioavailability and effects on man and biota, and previous work on the method of preparation of the biochar, its modification, and its characterization. The paper also presented critical analysis on the preparation of biochar, modification methods, surface chemistry, mechanisms of interaction, extraneous variables, and characterization methods. A comparative treatment of the preparation conditions, characterization methods, and surface functionalities was presented. The perceived disadvantages were listed, and the future prospects of the new research area for industrial scale applications were thoroughly presented. Doi: 10.28991/HEF-2022-03-03-09 Full Text: PDF

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“…Biomass appears as an energy and environmental alternative, with a strong renewable potential for the production of chemicals, biofuels and raw material for chemical industry. Forest and agro-industrial residues from its use, mainly due to the presence of lignocellulosic materials, are important sources of biomass [1]. Its importance is related to the low cost, such as sugarcane residues (bagasse and straw), corncobs, stalk, wheat straw, rice husk, among others [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…There are several types of pyrolysis applicable to biomass, the choice of which depends on the ultimate purpose, operating conditions and reactor parameters. Fast pyrolysis is generally employed to maximize yield of liquid product, while slow pyrolysis is employed to maximize yield of solid product [1,14].…”

Section: Introductionmentioning

confidence: 99%

Liquid chromatographic fractionation of bio-oil from sugarcane bagasse: influence of heating rate on bio-oil yield and quality

Conrado,

Cardoso,

Farrapeira

et al. 2024

Cad. Pedagógico

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Brazil stands out in the field of using biomass as a source of energy and biomaterials, due to its territorial extension, biodiversity and climatic conditions. In this sense, one can highlight the high potential of bio-products generated from biomass. This is the case of sugarcane bagasse, produced in large quantities allied to the sugar and alcohol industry. In Brazil, much research has been done to improve its amount of fiber, aiming at the production of alternative fuels and generating the so-called "energy cane". Thus, it was studied the use of sugarcane bagasse for the production of bio-oil through pyrolysis and the isolation of fractions for industrial application. A comparison was also made between two types of sugarcane, a commercial variety (Saccharum sp.) and a variety with some genetic improvement (Erianthus arundinaceus). The final pyrolysis temperature was set at 500 ° C by varying the heating rates (25, 45, and 65 ° C min-1). The bio-oils were fractionated using preparative liquid chromatography and their fractions were analyzed by gas chromatography coupled to mass spectrometry. The fractionation of bio-oils increased the number of compounds identified by about 50%, besides allowing the isolation of apolar compounds. In addition, it was found that the genetic improved sugarcane presented higher bio-oil content, with higher hydrocarbon content, when compared to commercial sugarcane, demonstrating that the improvement process was efficient. Among the compounds identified were phenols, furfural derivatives and hydrocarbons, which indicates the potential use of bio-oil not only as bio-fuels, but also for industrial purposes.

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Bio-oil and biochar from the pyrolytic conversion of biomass: A current and future perspective on the trade-off between economic, environmental, and technical indicators

Cited by 54 publications

References 205 publications

Pyrolysis of macroalgae residue from the agar industry for silica‐rich biochar and other sustainable chemicals: Process performances, product applications, and simple business scenario

Pyrolysis of macroalgae residue from the agar industry for silica‐rich biochar and other sustainable chemicals: Process performances, product applications, and simple business scenario

Functionalized Biochars for Enhanced Removal of Heavy Metals from Aqueous Solutions: Mechanism and Future Industrial Prospects

Liquid chromatographic fractionation of bio-oil from sugarcane bagasse: influence of heating rate on bio-oil yield and quality

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