A study on adsorption isotherm and kinetics of petroleum by cellulose cryogels

Lazzari, Lídia Kunz; Zampieri, Vitória Boeira; Neves, Roberta Motta; Zanini, Márcia; Zattera, Ademir J.; Baldasso, Camila

doi:10.1007/s10570-018-2111-x

Cited by 27 publications

(15 citation statements)

References 53 publications

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“…30,34,35 Sorption is a phenomenon that englobes two processes: absorption and adsorption, where factors like porosity, morphology, and functional properties of the material's surface must be considered. 4,[7][8][9]36,37 Porous sorbents as PUs have a promising perspective for this finality. [38][39][40] This study proposes a method to prepare green PU foams with different polyol: isocyanate concentrations (1:0.3; 1:0.5; 1: 1.0; 1:1.5; and 1:2.0) for the diesel sorption (S500 and S10).…”

Section: Introductionmentioning

confidence: 99%

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Efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500: Influence of porous size and statistical analysis

Alves

Santos

Monticeli

et al. 2021

Polymers and Polymer Composites

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This study evaluates the efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500, focusing on the influence of the pores’ size. Different foams were produced by varying the polyol: isocyanate ratio (1:0.3; 1:0.5; 1:1.0; 1:1.5; and 1:2.0). The physicochemical properties, morphology, density, and Hg porosity were determined. The sorption capacity was influenced by exposure time, oil viscosity, and concentration of the reagents, considering variations in the hydrophobicity, void content, and morphology. The results showed that the foam produced at an in the same mass proportion (PUC) has a higher sorption capacity in exposure time from 25 to 40 h due to higher void content and larger pore diameter size. It was observed that the lower viscosity of S10 diesel contributes to the higher sorption efficiency compared to S500 one. The Taguchi method corroborated the mentioned results, indicating a higher sorption trend by varying the reagent concentration and exposure times.

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Section: Introductionmentioning

confidence: 99%

“…Sorption is a phenomenon that englobes two processes: absorption and adsorption, where factors like porosity, morphology, and functional properties of the material’s surface must be considered. 4,7–9,36,37 Porous sorbents as PUs have a promising perspective for this finality. 38–40…”

Section: Introductionmentioning

confidence: 99%

Efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500: Influence of porous size and statistical analysis

Alves

Santos

Monticeli

et al. 2021

Polymers and Polymer Composites

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“…Literature reports the thermal degradation of lignocellulosic materials in the following order: around 100 °C (elimination of water/humidity), around 200 °C (degradation of hemicellulose), around 270 °C (degradation of cellulose) and, around 400 °C (degradation of lignin) [31][32][33] . All the results presented in Figure 1 corroborates with the literature.…”

Section: Cellulose Chemical Compositionmentioning

confidence: 99%

Thermal Degradation Kinetics and Lifetime Prediction of Cellulose Biomass Cryogels Reinforced by its Pyrolysis Waste

et al. 2022

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Degradation kinetics is an important tool in order to understand and improve energy conversion and the final application of a material. Cellulose cryogels (CC) are a new class of materials that can be reinforced by several types of particle, including biochar. Apart from it, degradation kinetics and lifetime prediction of biomass cellulose cryogels reinforced by cellulose pyrolysis waste (BC) has been investigated using TG techniques and iso-conversional model free methods. Additionally, the same study was applied to cellulose cryogels reinforced by graphene nanoplatelets (NPG) to compare the behavior of a filler from waste (BC) and a noble filler (NPG). Furthermore, the influence of the addition of the fillers into the cellulose biomass were evaluated in terms of thermal stability and crystallinity. BC and GNP led to higher values of activation energies ( a E ) calculated from modelfree isoconversional methods and all samples degraded in two-steps. Finally, lifetime prediction was successfully applied and the CC cryogel became more stable over time, maintaining almost 80% of the mass for 1 year exposed at 180 °C. The results of this study shown that only cellulose biomass cryogels are more suitable to produce thermal insulators due to it higher thermal stability.

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“…In recent years, several studies have been conducted on oil cleaning using natural materials, such as cotton [5,[9][10][11], kapok fiber [5,11], peat [12], wheat and barley straw [13,14], palm tree leaves or pith waste [15,16] banana trunk fibers [16,17], different cellulose-based materials [18,19], and natural sponge [6], among others. For sustainable and effective oil spill treatment, bio-based materials should be studied extensively, as one material is unlikely to be suitable in all possible oil spill scenarios [8].…”

Section: Introductionmentioning

confidence: 99%

Application of Different Vegetable Fibers as Natural Sorbents and Their Use in Water Decontamination from Crude Oil

et al. 2021

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The petroleum sorption capacities of plant fibers from Eucalyptus sp., Bambusa tuldoides, and sugarcane bagasse fibers were investigated as innovative and lowcost alternatives from renewable sources. Characterization of the fibers was performed according to their morphological aspects and physicochemical characteristics. The oil used was classified according to its American Petroleum Institute (API) gravity, viscosity, and density. Sorption tests performed with crude oil mixed with deionized water in a static or agitated system revealed maximum sorption capacities of the fibers in the range of 5.08-5.87 g g -1 . The biosorbent based on eucalyptus fibers is a promising material for the cleaning of oil spills in water bodies as it is the most hydrophobic material. Sugarcane bagasse and bamboo gave good results for oil sorption applications in the absence of water, validating their use as well.

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A study on adsorption isotherm and kinetics of petroleum by cellulose cryogels

Cited by 27 publications

References 53 publications

Efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500: Influence of porous size and statistical analysis

Efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500: Influence of porous size and statistical analysis

Thermal Degradation Kinetics and Lifetime Prediction of Cellulose Biomass Cryogels Reinforced by its Pyrolysis Waste

Application of Different Vegetable Fibers as Natural Sorbents and Their Use in Water Decontamination from Crude Oil

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