INVITED REVIEW PAPER Re-refining of used lubricant oil by …
Fig. 11. FTIR analysis of recovered base oil by using MEK+bentonite. represented in 1,245, 847, 746 cm−1 peaks. CONCLUSIONS 1. Response surface methodology (RSM) was used to enhance process variables for re-refining used lubricant oil. 2. This re-refining method consumes low energy, as high temperatures and low pressure are not needed. 3.
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INCORPORATION OF WASTE FROM USED LUBE OIL RE …
refined oil. Automotive use represents 70% of Brazil's motor oil consumption. The re-refining process recovers most of the lube oil that is not burned during motor use. The acid/clay (Bernd ...
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Recycling process of spent bleaching clay: Optimization by
In the bleaching process of used-oil refining, absorbents such as natural bleaching clay, activated bleaching clay, activated carbon and amorphous silicates are used (Ismadji, et al., 2015). …
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Clay Adsorption Perspective on Petroleum Refining Industry
Hence, the bentonite-clay lattice can be disturbing the charge equilibrium by increasing in acid sites, that can be interact more selectively with the sulfur compound [30]. Wan et al., [17] studied a batch adsorption of oxidized sulfur compounds in diesel oil using activated clay at different process parameters.
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Comparative Study on the Regeneration of Used Motor Oil
Udonne, J.D.: A comparative study of recycling of used lubrication oils using distillation, acid and activated charcoal with clay methods. J. Pet. Gas Eng. 2(2), 12–19 (2011) Google Scholar Udonne, J.D., Bakare, O.: Recycling of used lubricating oil using three samples of acids and clay as a method of treatment. Int. Arch. Appl. Sci.
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re refining used oil using bentonite clay
re refining used oil using bentonite clay. Posted at: July 4, 2013 [ 4.9 - 4227 Ratings ] INCORPORATION OF WASTE FROM USED LUBE OIL RE-REFINING … which is rich in clay (bentonite) and re-refined oil. Thermal analysis…
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(PDF) Acid activation of bentonite clay for recycled automotive oil
In this study, the use of bentonite clay modified by acid activation is proposed. Sulfuric acid, acetic acid (v-acid/w-clay ratio=20, 40 and 60%) and sulfuric/acetic mixtures (1:1 ratio) were used ...
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The Use of Mozambican Bentonite in Edible Oil Refining
bentonite is composed mainly of montmorillonite (MMT) in about 60 wt.%, with cristobalite being the major impurity. The presence of MMT in the clay is of utmost importance as it confers the bleaching power to clay, making this bentonite a potential candidate to be used as adsorbent agent in the bleaching stage. However, it
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(PDF) Rehabilitating Used Generator Oil via Acid-Bentonite …
The idea of recycling of used oil was presented in the year of 1930. Initially the used oil was burned to produce energy, and later this oil was re-blended to engine oil after treatment. Recycle of used oil has been carried out by several methods [Kamal and Khan, 2009]. Recycling technology is the most important used oil re-refining.
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Re-refining of used Oil- an Insight
In this process used oil is treated with strong acid and then clay. To this method, they an alternative method that is ecofriendly and produces good quality refined oil.
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Effect of Extraction and Adsorption on Re-refining of Used Lubricating Oil
A Kamal and F Khan / Effect of Extraction and Adsorption on Re-refining of Used Lubricating Oil. ACKNOWLEDGMENT. ... The carbon and clay were characterized using FTIR, BET, SEM-EDX, XRF, and XRD ...
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Re-refining of used lube oil, II-by solvent/clay and acid/clay
The optimization of recycling of used engine oil with clay sample has been studied using Response Surface Methodology.
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Re-refining of used lubricant oil by solvent extraction using
Re-refining of used lubricant oil by solvent extraction using central composite design method. ... temperature and time of contact. The best conditions in the process of adsorption by activated bentonite were a ratio of clay/extract oil=15 wt/vol%, temperature=120 oC, and time of contact=150 minutes. The recovered base oil was analyzed by ...
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Comprehensive investigation of various re-refining …
Further the work elaborates on the various conventional techniques of re-refining of waste lubricating oil like acid clay, vacuum distillation, hydrotreating, solvent extraction, extraction...
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Recent Advances in Reclamation of Used Lubricant Oil
2.1 Acid/Clay Method. The method is based on treating the used lubricant oil to eliminate different contaminants from waste oil using different types of acids [] (sulphuric, acetic, phosphoric, and formic) to remove contaminants present in waste oil and then adsorbent mainly clay is used to neutralize the resulting product.This process involves the following step …
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Design Aspects of Used Lubricating Oil Re-Refining
Publisher Summary. This chapter investigates the solvent composition of oil and the used lubricating oil. The investigation was based on three variables; the first variable (x 1) was the 2-propanol solvent volume percentage with an operating range of 10–40%; the second variable (x 2) was the 1-butanol solvent volume percentage with an operating range of 35–65%; and the third ...
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Statistical Model for Re-Refining of Used Lubricating Oil by …
Key takeaway: 'The solvent extraction+ clay adsorption technique effectively recycles used lubricating oils, achieving 72% yield and restoring properties close to base oil specifications.'
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Waste Lubricating Oil Treatment by Adsorption Process …
In this study, adsorption process is investigated for the treatment of waste lubricating oil using different adsorbents such as egg shale powder, date palm kernel powder, acid activated date …
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Re-refining and recycling of used lubricating oil: An option for
The paper reviews the re-refining of used automotive engine lubricating oils to obtain lube stock with the right characteristics and additives' response suitable for blending automotive engine lubricating oil. The caustic treatment and subsequent vacuum distillation method for re-refining of used automotive gasoline engine lubricating oils was used in this …
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(PDF) Bentonite as a Refining Agent in Waste Cooking Oils …
The paper proposes the development of advanced, integrated technologies for materials with properties of adsorbents (e.g. bentonite), and the use of these material in processes of used …
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RE-REFINING OF USED LUBE OIL, I- BY SOLVENT …
The re-refining using vacuum distillation gave the highest oil yield of about 84% compared to solvent extraction (about 78%). Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 224,253,628 papers from all fields of science ... Statistical Model for Re-Refining of Used Lubricating Oil by Solvent ...
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Re-refining of used Oil- an Insight
Turkish Journal of Engineering. Refining of waste mineral oils is usually done by distillation or acid/clay methods, or a combination of both. In this study, waste oil refining was carried out in order to obtain higher efficiency than acid /clay method by using more environmentally friendly physicochemical methods which could be an alternative to acid /clay method and distillation …
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(PDF) Waste Engine Oil Remediation Using Low Cost Natural Clay
In this study, the use of bentonite clay modified by acid activation is proposed. Sulfuric acid, acetic acid (v-acid/w-clay ratio=20, 40 and 60%) and sulfuric/acetic mixtures (1:1 ratio) were used in the bentonite clay activation. ... — The re-refining of waste lubricating oil using activated Ukpor clay as an adsorbent was investigated. Clay ...
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Re-refining of used lubricant oil by solvent extraction using central
The primary aim of this study was to recover base oil from used oil using solvent extraction followed by the adsorption method. Many effective variables were examined within the solvent extraction method, including using different solvents, solvent/used oil, temperature and speed of blending. Central composite design (CCD) was applied as the statistical method. …
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Waste lubricating oil treatment by extraction and adsorption
Higher percent sludge removal means better quality of re-refined oil, which will enhance downstream refining stages, such as, vacuum distillation and finishing stages by clay …
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Kinetic Modelling of the Adsorption Treatment of Waste …
Abstract—The re-refining of waste lubricating oil using activated Ukpor clay as an adsorbent was investigated. Clay ... The clay (Bentonite) used in this work was obtained from a clay deposit at ...
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New Methods of Bentonite Activation and Their Efficiency in Used …
This research paper focuses on producing high-quality lubricating oil from used motor oil that has run between 15 000 and 20 000 km using an adsorption process involving activated bentonites. Bentonite is a clay mineral mostly composed of montmorillonite [7].
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Bentonite as a Refining Agent in Waste Cooking Oils …
Clarification of waste recycled cooking oil (WCO) is very important in order to refine the intermediate regenerated base resulting from the previous steps. Bentonite has been …
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The Use of Mozambican Bentonite in Edible Oil Refining
We're Hiring! Help Center; less; download. Download Free PDF. Download Free PDF. The Use of Mozambican Bentonite in Edible Oil Refining: Characterization, Acid Activation and Performance Evaluation. Antonio Cumbane. 2020, DOAJ (DOAJ: Directory of Open Access Journals) See full PDF download Download PDF.
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(PDF) Statistical Model for Re-Refining of Used Lubricating Oil by
A re-refining process based on an integrated solvent extraction and hydrotreatment unit is introduced as a media to re-valorize the waste lubricating oil (WLO) …
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