A method of predicting effective solvent extraction parameters for recycling of used lubricating oils

Elbashir, Nimir O.; Al-Zahrani, S.M.; Mutalib, M.I. Abdul; Abasaeed, Ahmed E.

doi:10.1016/s0255-2701(02)00006-5

Cited by 60 publications

(44 citation statements)

References 3 publications

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“…For Elbashir et al (2002), that difference is 6 and 7 for the 1-butanol and 2-propanol, respectively; hence, the lubricant base oil solubility was higher in 1-butanol than in 2-propanol. Their data is consistent with the results presented in this work (Fig.…”

Section: Solvent Extractionmentioning

confidence: 96%

“…Additives and carbon impurities, normally present in waste oils, are not miscible in the solvent; thus, they flocculate and eventually sediment by gravity, forming lees. The solvent used in this operation can be recovered by distillation and recycled (Elbashir et al, 2002). One of the main steps in this process is the extraction system planning, which includes the selection of the solvent and the appropriate oil:solvent ratio (Hamad et al, 2005;Elbashir et al, 2002).…”

Section: Brazilian Journal Of Chemical Engineeringmentioning

confidence: 99%

“…The percentages of lubricant base oils extracted by the various solvents were calculated by employing Equation (1), according to the procedure described by Elbashir et al (2002).…”

Section: Solvent Extraction Of Lubricant Base Oilmentioning

confidence: 99%

“…The recovered oil percentages in the different systems were plotted as a function of solvent:used oil ratio and the Critical Clarifying Ratio (CCR) determined (Elbashir et al 2002).…”

Section: Solvent Extraction Of Lubricant Base Oilmentioning

confidence: 99%

“…04, pp. 687 -697, October -December, 2010 On the other hand, among the various alternative processes recently proposed, extraction with solvents (Coto et al, 2006;Elbashir et al, 2002;Espada et al, 2007;Martins, 1997;van Grieken et al, 2008) gained a good deal of attention because it is simple, economical and ecologically correct since their waste products (organic sludge) can be used in the asphalt industry. The foundations of this process have been used to recover polluted areas because the handling of oil solubilizing solvents, not miscible in water, allows their removal with no harm to the environment (Wei et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Liquid-liquid extraction and adsorption on solid surfaces applied to used lubricant oils recovery

Filho

Moura

Ramos

2010

Braz. J. Chem. Eng.

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-In this work, the recovery of base oils from waste lubricants following the steps of solvent extraction, adsorption on solids and solvent removal by evaporation was evaluated. In the step of solvent extraction, the most efficient was 1-butanol, followed by tert-butanol, 2-propanol and ethanol; for the step of adsorption, activated carbon was the most effective solid for PAH removal, confirming the similarity of these compounds with petroleum aromatic fractions. Thus, the optimum solvent-adsorbent pair for the recovery of used lubricant oils through the proposed methodology was 1-butanol/activated carbon. At the end of the process, it was possible to establish a set of steps that permit the recovery of lubricant base oils with lower content of contaminants.

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Section: Solvent Extractionmentioning

confidence: 96%

Section: Brazilian Journal Of Chemical Engineeringmentioning

confidence: 99%

“…The percentages of lubricant base oils extracted by the various solvents were calculated by employing Equation (1), according to the procedure described by Elbashir et al (2002).…”

Section: Solvent Extraction Of Lubricant Base Oilmentioning

confidence: 99%

“…The recovered oil percentages in the different systems were plotted as a function of solvent:used oil ratio and the Critical Clarifying Ratio (CCR) determined (Elbashir et al 2002).…”

Section: Solvent Extraction Of Lubricant Base Oilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Liquid-liquid extraction and adsorption on solid surfaces applied to used lubricant oils recovery

Filho

Moura

Ramos

2010

Braz. J. Chem. Eng.

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Optimization of the Aromatic/Paraffinic Composition of Synthetic Jet Fuels

et al. 2016

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Aviation fuels derived from the gas-to-liquid (GTL) technology may be used as drop-in alternatives to conventional oil-derived fuels. Reliable composition-property relations must be developed based on experimental data to correlate the hydrocarbon compositions of formulated synthetic fuels with their properties to be certified for aviation commercial use. An experimental and property-integration framework for the design of synthetic jet fuels from GTL-based kerosene derived by evaluating the role of aromatics on resultant fuel properties is presented. The experimental results were used to develop property-mixing rules and linear programming for the design of optimum fuel compositions that meet the ASTM specifications. The role of aromatics on critical physical properties for jet fuel certification is revealed. A practical solution for jet fuels blending through optimization of jet fuel formulation based on cost and technically effective manners is provided.

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Polycyclic aromatic hydrocarbons (PAHs) adsorption on solid surfaces applied to waste lubricant oils recovery process

2010

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Lubricant oils undergo degradation increasing polycyclic aromatic hydrocarbons (PAHs) concentration. In this work, PAHs adsorption onto activated carbon, powder silica, and powder chitosan surfaces was estimated, with their concentrations in organic solvents (ethanol, 2-propanol, 1-butanol, and terc-butanol) monitored by UV-visible absorption. Equilibrium concentration was attained after 72 h and the isotherms presented characteristic of multilayer formation. The greater surface density was determined for the chitosan, but the system containing activated carbon and 1-butanol presented better efficiency for PAHs removal. Results indicated that the adsorption evaluated in this work can be a potential stage in the waste lubricant oils global recovery process.Les huiles de lubrification subissent une dégradation augmentant la concentration d'hydrocarbures aromatiques polycycliques (HAP). Dans ce travail, on a estimé l'adsorption de HAPs sur du carbone activé, de la silice en poudre et des surfaces de chitosane en poudre, leurs concentrations dans des solvants organiques (éthanol, 2-propanol, 1-butanol et terc-butanol)étant suivies par absorption UV et dans le domaine visible. Une concentration d'équilibre aété atteinte après 72 h et les isothermes présentaient des caractéristiques de formation de couches multiples. La densité de surface la plus importante aété déterminée pour le chitosane mais le système contenant du carbone activé et du 1-butanol présentait une meilleure efficience en matière de retrait des HAPs. Les résultats indiquaient que l'adsorptionévaluée dans ce travail pourrait constituer uneétape potentielle du processus global de récupération des résidus d'huiles de lubrification.

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A method of predicting effective solvent extraction parameters for recycling of used lubricating oils

Cited by 60 publications

References 3 publications

Liquid-liquid extraction and adsorption on solid surfaces applied to used lubricant oils recovery

Liquid-liquid extraction and adsorption on solid surfaces applied to used lubricant oils recovery

Optimization of the Aromatic/Paraffinic Composition of Synthetic Jet Fuels

Polycyclic aromatic hydrocarbons (PAHs) adsorption on solid surfaces applied to waste lubricant oils recovery process

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