Bio-oil Production from Sweet Sorghum Bagasse Via Liquefaction Using Alkaline Solutions and Identification of Phenolic Products

Sehume, Thabo Z.; Strydom, Christien A.; Bunt, John R.; Schobert, Harold H.

doi:10.1007/s12649-019-00893-6

Cited by 9 publications

(4 citation statements)

References 48 publications

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“…The authors recovered and identified specific bioactive phenols for each woody species such as gallic acid, coniferyl alcohol, vanillic acid, syringaldehyde, and traces of epicatechin and catechin [96]. For the optimum alkali treatment concentration in sweet sorghum bagasse, different types of phenolic species were determined with the use of alkali treatments between concentrations of 3.0 and 6.0 M NaOH, resulting in high concentrations of phenol, 4-ethylphenol, and guaiacol [97].…”

Section: Chemicals Derived From Alkaline-based Methodsmentioning

confidence: 99%

Getting Environmentally Friendly and High Added-Value Products from Lignocellulosic Waste

Rodríguez¹,

Tamayo²,

Cervantes³

et al. 2021

Biotechnological Applications of Biomass

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In recent years, alternatives have been sought for the reuse of lignocellulosic waste generated by agricultural and other industries because it is biodegradable and renewable. Lignocellulosic waste can be used for a wide variety of applications, depending on their composition and physical properties. In this chapter, we focus on the different treatments that are used for the extraction of natural cellulose fibers (chemical, physical, biological methods) for more sophisticated applications such as reinforcement in biocomposites. Due to the different morphologies that the cellulose can present, depending from sources, it is possible to obtain cellulose nanocrystals (CNCs), micro- nanofibrillated cellulose (MFC/NFC), and bacterial nanocellulose (BNC) with different applications in the industry. Among the different cellulose nanomaterials highlighted characteristics, we can find improved barrier properties for sound and moisture, the fact that they are environmentally friendly, increased tensile strength and decreased weight. These materials have the ability to replace metallic components, petroleum products, and nonrenewable materials. Potential applications of cellulose nanomaterials are present in the automotive, construction, aerospace industries, etc. Also, this chapter exhibits global market predictions of these new materials or products. In summary, lignocellulosic residues are a rich source of cellulose that can be extracted to obtain products with high value-added and eco-friendly characteristics.

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Section: Chemicals Derived From Alkaline-based Methodsmentioning

confidence: 99%

Getting Environmentally Friendly and High Added-Value Products from Lignocellulosic Waste

Rodríguez¹,

Tamayo²,

Cervantes³

et al. 2021

Biotechnological Applications of Biomass

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“…A model biomass derived-phenolic mixture was based on the prominence of phenolic species identified in a previous study. 27 Liquified phenol (purity ≥89.0 % and impurities ≈10 %, water) was supplied by Sigma-Aldrich (South Africa). The following phenol derivatives' were purchased from Minema Chemicals (South Africa); p-cresol (99 %), 4-ethylphenol (99 %), 4-isopropylphenol (98 %), 2-propylphenol (97 %), and 4-ethylguaicol (98 %).…”

Section: Methodsmentioning

confidence: 99%

“…Sehume et al 27 identified the phenolic compounds obtained from a sweet sorghum bagasse biomass sample, which was subjected to liquefaction using an alkaline treatment method at low reaction temperatures. The main phenolic compounds produced at a temperature of 280°C and a NaOH concentration of 3.0 M were phenol (13.8 wt.…”

Section: Research Articlementioning

confidence: 99%

Solvent Extraction of a South African Bituminous Coal using a Model Biomass-derived Phenolic Mixture

Sehume¹,

Strydom²,

Bunt³

et al. 2019

S.Afr.j.chem.

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A model biomass-derived phenolic mixture was investigated for its solvent ability for extraction of a South African bituminous coal at temperatures of 300-360°C. A previous study showed that phenol gave the highest extraction yield of 49.5 wt. % (daf) for bituminous coal at 360°C, with an oil yield of 26.3 wt. % (daf). The phenolic products produced from sweet sorghum bagasse via an alkaline liquefaction process were identified and reported earlier and a model biomass-derived phenolic mixture was formulated, evaluated and results used in this study. The model mixture gave an extraction yield of 37.1 wt. % (daf) and oil yield of 16.9 wt. % (daf) at 360°C. This solvent mixture was found to be less effective for high extraction yields when compared to phenol at mild temperatures. This could be due to phenol being a better hydrogen carrier than the solvent mixture during the internal redistribution of hydrogen in the coal. The infrared spectroscopy results of the coal and extraction products obtained using the model mixtures showed similar functional groups. These results demonstrate that the use of a model biomass-derived phenolic mixture has the potential to depolymerize coal and produce high-value chemicals from coal.

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“…Using the liquid-liquid extraction technique and a solvent like methanol, phenol components from bio-oil could be removed. Sehume et al [63] in their research showed that the phenol that could be extracted from bio-oil from pyrolysis was as much as 40.0 wt% by using a 3M NaOH as solvent. From several research results on improving the bio-oil quality using the LLE method, optimization of phenol compound retrieval could still be optimized based on the solvent types and operating conditions of the extraction process.…”

Section: Bio-oil Upgrading Processmentioning

confidence: 99%

Bio Oil Production from Multi-Feed Stock Biomass Waste and The Upgrading Process for Quality Improvement - Mini Review

Prasetiawan,

Hadiyanto,

Fardhyanti

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Bio-oil is an environmentally friendly liquid fuel produced from the condensation of vapor product of pyrolysis process. Bio-oil has higher calorific value compared to other oxygenated fuels (such as methanol), but its calorific value is still lower than diesel and other light fuel oils. Bio-oil can be used directly as fuel; however, it has several characteristics that adversely affect high-tech machines. Bio-oil is corrosive since it has a high acidity level, unstable at room temperature due to the high content of oxygenate compounds and has a low higher heating value (HHV) due to its high water content. Therefore, an upgrading process is needed to improve the quality before it can be further processed into liquid fuel and chemicals. Meanwhile, the raw material for bio-oil also varies, not only using single feedstock but also using mixed feedstock. However, studies on mixed bio-oil raw materials are still very limited. Thus, it is possible to study the process of producing bio-oil from a mixture of biomass waste using the catalytic pyrolysis method and improve the quality of bio-oil through the collection of phenolic compounds using the extraction process.

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Bio-oil Production from Sweet Sorghum Bagasse Via Liquefaction Using Alkaline Solutions and Identification of Phenolic Products

Cited by 9 publications

References 48 publications

Getting Environmentally Friendly and High Added-Value Products from Lignocellulosic Waste

Getting Environmentally Friendly and High Added-Value Products from Lignocellulosic Waste

Solvent Extraction of a South African Bituminous Coal using a Model Biomass-derived Phenolic Mixture

Bio Oil Production from Multi-Feed Stock Biomass Waste and The Upgrading Process for Quality Improvement - Mini Review

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