Fractionation of pyrolysis oil via supercritical carbon dioxide extraction: Optimization study using response surface methodology (RSM)

Chan, Yi Herng; Yusup, Suzana; Quitain, Armando T.; Uemura, Yoshimitsu; Loh, Soh Kheang

doi:10.1016/j.biombioe.2017.10.005

Cited by 27 publications

(39 citation statements)

References 34 publications

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“…CO 2 can be supplied to the system by different types of positive displacement pumps such as pneumatic [64], syringe [126], and diaphragm [43]. In some cases, the pumped CO 2 is preheated before entering the extractor [43,84,126,[128][129][130]. The extraction vessel may contain an insert that can be dismounted for easy charging of the feed and retrieving the residue [64,127].…”

Section: Sco 2 Extraction Of Lignocelulosic Bio-oilsmentioning

confidence: 99%

“…On the contrary, the long chain fatty acids (i.e., C6-C18, LFA) and the aromatic acids (i.e., dehydroabietic acid, ArAcid) initially exhibit K-values lower than 1 and, at the latest stages, they are extracted K-values correspond to the pressure, temperature, and compositional ranges reported in the literature. The boxes include the 50% distributed around the average, the red line is the median value, the whiskers are the extreme values (over 75% and under 25%), and the "+" denotes values considered outliers [58,64,84,126,127,129,130]. SFA, short chain fatty acid; LFA, long chain fatty acid; PAH, polyaromatic hydrocarbon.…”

Section: Chemical Composition Sco 2 Extractsmentioning

confidence: 99%

“…(a) H/C atomic ratio and (b) oxygen mass fraction of bio-oils (feed) and their sCO2 extracts on a waterfree basis. A: Montesantos et al[58]; B: Montesantos et al[64]; C: Chan et al[129]; D: Feng and Meier[130]…”

mentioning

confidence: 99%

“…Typical chemical classes and key components observed in sCO 2 extracts[43,58,64,84,103,126,129,130,132,133].…”

mentioning

confidence: 99%

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Supercritical Carbon Dioxide Extraction of Lignocellulosic Bio-Oils: The Potential of Fuel Upgrading and Chemical Recovery

Montesantos

Maschietti

2020

Energies

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Bio-oils derived from the thermochemical processing of lignocellulosic biomass are recognized as a promising platform for sustainable biofuels and chemicals. While significant advances have been achieved with regard to the production of bio-oils by hydrothermal liquefaction and pyrolysis, the need for improving their physicochemical properties (fuel upgrading) or for recovering valuable chemicals is currently shifting the research focus towards downstream separation and chemical upgrading. The separation of lignocellulosic bio-oils using supercritical carbon dioxide (sCO2) as a solvent is a promising environmentally benign process that can play a key role in the design of innovative processes for their valorization. In the last decade, fundamental research has provided knowledge on supercritical extraction of bio-oils. This review provides an update on the progress of the research in sCO2 separation of lignocellulosic bio-oils, together with a critical interpretation of the observed effects of the extraction conditions on the process yields and the quality of the obtained products. The review also covers high-pressure phase equilibria data reported in the literature for systems comprising sCO2 and key bio-oil components, which are fundamental for process design. The perspective of the supercritical process for the fractionation of lignocellulosic bio-oils is discussed and the knowledge gaps for future research are highlighted.

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Section: Sco 2 Extraction Of Lignocelulosic Bio-oilsmentioning

confidence: 99%

Section: Chemical Composition Sco 2 Extractsmentioning

confidence: 99%

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Supercritical Carbon Dioxide Extraction of Lignocellulosic Bio-Oils: The Potential of Fuel Upgrading and Chemical Recovery

Montesantos

Maschietti

2020

Energies

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“…Statistic software Design-Expert 10 was used to design, analyze, and optimize experimental models. Analysis of variance (ANOVA) was used to validate the statistical significance of the parameters that influence the responses, and the quality of the predicted model (Chan et al, 2017;Mohammed et al, 2018). The coefficient of determination (R 2 ) shows the total predictive performance of the model, it represented the validity and fit quality of the model's quadratic polynomials.…”

Section: Experimental Design For Optimization and Statistical Analysismentioning

confidence: 99%

Model development to enhance the solvent extraction of rice bran oil

Mas’ud

Fajar

Bangngalino

et al. 2019

OCL

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Rice bran oil (RBO) extraction with ethanol using maceration method accompanied by stirring has been optimized using response surface methodology (RSM) based on central composite design (CCD). Experiments were conducted to investigate the influence of extraction time, ethanol concentration, and ethanol volume on the oil yield, g-oryzanol, and vitamin E of RBO as the response. The experiment consisted of twenty units including six replicates of the center points. The data were analyzed using Design-Expert 10 software to develop and evaluate models and to plot the response curve as 3D surfaces. The result showed that the maximum of the oil yield, g-oryzanol, and vitamin E of RBO was achieved under the optimum conditions of x 1 = 5.30 h, x 2 = 89.21% and x 3 = 686.66 mL (50 g rice bran), respectively. Maximum of the response under these conditions was 14.47%, 783.65 mg.L À1 , and 127.01 mg.L À1 , respectively. This study has resulted in the development of a model for RBO extraction using ethanol as solvent, it is feasible to be applied to the RBO industry with an efficient process, as well as an implementation of the "green" solvent concept.

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Production and separation of acetic acid from pyrolysis oil of lignocellulosic biomass: a review

Sarchami

Batta

Berruti

2021

Biofuels Bioprod Bioref

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Bio‐oil from lignocellulosic biomass pyrolysis is a promising feedstock as a precursor for the production of transportation fuels and value‐added chemicals. The presence of significant concentrations of oxygen, water, and acids makes it difficult to use bio‐oil directly as a transportation fuel without costly upgrading. The acidity of pyrolysis liquids is mainly derived from volatile acids, such as acetic acid, causing chemical instability and corrosion. The extraction of acids from bio‐oil can therefore offer strategies for improved applications and economic value. Moreover, acetic acid is a valuable reagent and the building block for several commercially important chemicals. This review presents the results of important research related to the production of bio‐oil‐derived acetic acid. The discussion is intended to summarize the effect of biomass type and pretreatment method, pyrolysis processing conditions, and separation techniques on acetic acid production via pyrolysis. On this basis, acetic acid characterization techniques are also presented along with an overview of acetic acid applications and economic considerations. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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Fractionation of pyrolysis oil via supercritical carbon dioxide extraction: Optimization study using response surface methodology (RSM)

Cited by 27 publications

References 34 publications

Supercritical Carbon Dioxide Extraction of Lignocellulosic Bio-Oils: The Potential of Fuel Upgrading and Chemical Recovery

Supercritical Carbon Dioxide Extraction of Lignocellulosic Bio-Oils: The Potential of Fuel Upgrading and Chemical Recovery

Model development to enhance the solvent extraction of rice bran oil

Production and separation of acetic acid from pyrolysis oil of lignocellulosic biomass: a review

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