Investigation of operating parameters of water extraction processes for improving bio-oil quality

Yoosuk, Boonyawan; Boonpo, Jiraporn; Udomsap, Parncheewa; Sukkasi, Sittha

doi:10.1007/s11814-014-0190-4

Cited by 22 publications

(12 citation statements)

References 11 publications

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“…furan, furfural), phenolics (e.g. guaiacol), aldehydes, and ketones 1 2 3 4 5 6 . These bio-based chemicals and bio-based fuels are potential alternatives to petroleum-based chemicals and fuels.…”

mentioning

confidence: 99%

Catalytic Hydrodeoxygenation of Bio-oil Model Compounds over Pt/HY Catalyst

Lee

Kim

et al. 2016

Sci Rep

150

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The hydrodeoxygenation of a model compound of lignin-derived bio-oil, guaiacol, which can be obtained from the pyrolysis of biomass to bio-oil, has attracted considerable research attention because of its huge potential as a substitute for conventional fuels. In this study, platinum-loaded HY zeolites (Pt/HY) with different Si/Al molar ratios were used as catalysts for the hydrodeoxygenation of guaiacol, anisole, veratrole, and phenol to a range of hydrocarbons, such as cyclohexane. The cyclohexane (major product) yield increased with increasing number of acid sites. To produce bio-oil with the maximum level of cyclohexane and alkylated cyclohexanes, which would be suitable as a substitute for conventional transportation fuels, the Si/Al molar ratio should be optimized to balance the Pt particle-induced hydrogenation with acid site-induced methyl group transfer. The fuel properties of real bio-oil derived from the fast pyrolysis of cork oak was improved using the Pt/HY catalyst.

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confidence: 99%

Catalytic Hydrodeoxygenation of Bio-oil Model Compounds over Pt/HY Catalyst

Lee

Kim

et al. 2016

Sci Rep

150

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“…Parameters in water extraction include water temperature, stirring time and water:bio-oil ratio. The acidity of pyrolytic lignin was reported to decrease significantly and yield was increased as water:bio-oil ratio was varied from 5:1 to 15:1 [134]. The upgraded bio-oil using water extraction has lower acidity, a higher heating value and more stability due to removal of carboxylic acids, alcohols, sugars, ketones, and other reactive compounds [133]; (iv) Hot vapor filtration (HVF) is a technique to reduce inorganic content in bio-oil.…”

Section: Physical Upgradingmentioning

confidence: 99%

A Comprehensive Review on Biofuels from Oil Palm Empty Bunch (EFB): Current Status, Potential, Barriers and Way Forward

2021

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Biomass is an important renewable energy resource which primarily contributes to heating and cooling end use sectors. It is also a promising alternative source of biofuels to replace the depleting supply of fossil fuels. Surprisingly, few writers have been able to draw on the feedstock significance for oil palm empty fruit bunch (EFB) as the biomass resource for biofuels compared to the other types of biomass waste. Therefore, this paper presents a comprehensive review of EFB as a biomass resource presented in four major parts. First, the introduction covers the demand for bio-oil and describes the different kinds of feedstock, the relevance and potential of EFB biomass. Second, the characteristics of biomass are explained before it is upgraded as biofuel, drawing similarities and contrasts between EFB and other sources of biomass. Pyrolysis processes and reactors used for EFB conversion are described, and the factors affecting the bio-oil yield and quality are discussed. Major reactor parameters are summarized and reactor optimization is discussed. Third, comparison on the properties of the bio-oil vs. petroleum in transportation, power generation, and heating are compared followed by prioritizing the bio-oil properties from the most to least critical, revealing the most promising methods for upgrading. Fourth, the environmental impact, including CO2 emission, of the use of EFB as a promising renewable energy resource and a cleaner alternative fuel is recommended. This paper has comprehensively reviewed the conversion of oil palm empty fruit bunches into biofuels, including the similarities and differences between biomasses, the best reactors, its comparison with fossil fuels, and bio-oil upgrading methods. The upgrading mapping matrix is created to present the best upgrading strategies for the optimum quality of biofuels. This paper serves as a one-stop center for EFB conversion into biofuels.

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“…The bio-oil produced from non-catalytic pyrolysis contains a large amount of acetic acid (up to 12 wt%), resulting in high acidity and strong reactivity. [10][11][12] Instability of bio-oil also causes an increase in the oil viscosity when stored for a long time.…”

Section: Introductionmentioning

confidence: 99%

Conversion of Acetic Acid from the Catalytic Pyrolysis of Xylan Over CeO<SUB>2</SUB>

Lee¹,

Ko²,

Kwon³

et al. 2016

j nanosci nanotechnol

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CeO2 was synthesized hydrothermally in supercritical water and applied to the catalytic pyrolysis of xylan. Acetic acid, which is the main component in bio-oil produced from the non-catalytic pyrolysis of xylan, deteriorates the fuel quality of the oil. Catalysis over CeO2 effectively converted the acetic acid to ketone species, such as acetone, thereby reducing the acidity of the oil considerably. The content of aromatics in bio-oil was also increased substantially by catalysis.

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Investigation of operating parameters of water extraction processes for improving bio-oil quality

Cited by 22 publications

References 11 publications

Catalytic Hydrodeoxygenation of Bio-oil Model Compounds over Pt/HY Catalyst

Catalytic Hydrodeoxygenation of Bio-oil Model Compounds over Pt/HY Catalyst

A Comprehensive Review on Biofuels from Oil Palm Empty Bunch (EFB): Current Status, Potential, Barriers and Way Forward

Conversion of Acetic Acid from the Catalytic Pyrolysis of Xylan Over CeO<SUB>2</SUB>

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