##tihuan2##Locally available clay samples collected from Niger State were modified using H2SO4 for the purpose of replacing imported clay used for bleaching palm oil and the bleaching performance of the ...
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##tihuan2##Expanded perlite was used as a bleaching agent to remove dark colour from repeatedly used palm oil. It was found that non-activated expanded perlite was able to bleach the dark colour.
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##tihuan2##Bentonite clay (400 gm) is activated by mixing (100 ml) diluted sulfuric acid under 100 °C for 4 hours. The extracted oil is treated by activated clay (Clay/Extracted oil =%15 wt) at (120°C) with mixing speed (500 rpm) for 90 minutes.
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##tihuan2##Re-refining of used Oil- an Insight Dr. Sunil Jayant Kulkarni Datta Meghe College of Engineering, Airoli, Navi Mumbai, Maharashtra, India ... (Bentonite clay) ratios with different combinations. They obtained 55% to 74.7 % yield during their investigation. They observed that acid percentage of 20% and adsorbent percentage
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##tihuan2##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. ... for re-refining used ...
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##tihuan2##— The re-refining of waste lubricating oil using activated Ukpor clay as an adsorbent was investigated. Clay activation was performed using sulphuric acid (H 2 SO 4) with equivalent concentrations varying between 0.5 – 2 mol/L at a constant …
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##tihuan2##While bentonite clay has been used for centuries around the world to promote better health and ward off diseases, those living in the U.S. and Europe have, for the most part, only recently become familiar with this product. ... Bentonite clay nourishes the skin by balancing oil production, removing dead skin cells, clearing clogged pores …
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##tihuan2##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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##tihuan2##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, …
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##tihuan2##Pour point, density, viscosity index, and total acid number of used engine oil and re-refined oils were measured in order to evaluate the two re-refining processes used and assess whether it is ...
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##tihuan2##Re-refining of used lube oil, I- by solvent extraction and vacuum ... In addition, bentonite clay (in this research) was composed of 0.96% CaO, 69.8% SiO 2 and 11.88% Al 2 O 3. Thermal remediation ...
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##tihuan2##— The re-refining of waste lubricating oil using activated Ukpor clay as an adsorbent was investigated. Clay activation was performed using sulphuric acid (H 2 SO 4) with equivalent concentrations varying between 0.5 – 2 …
WhatsApp: +86 18221755073
##tihuan2##Addresses and demonstrates the current knowledge of the process behaviour and re-refining technology of used lubricating oils Contains 94 figures and 22 tables that on results regarding the re ...
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##tihuan2##Utilization of Waste Lubricating Oil as a Diesel Engine Fuel Statistical Model for Re-Refining of Used Lubricating Oil by Solvent Extraction and Bentonite Clay …
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##tihuan2##Bentonite has been historically employed as a filling material for oil refining filters due to. ... (UMO) purification has become a topic of research. 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 ...
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##tihuan2##The best conditions in the process of adsorption by activated bentonite were a ratio of clay/extract oil=15 wt/vol%, temperature=120 °C, and time of contact=150 …
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##tihuan2##[10] Emam E A and Shoaib A M 2012 Re-refining of used lube oil, II- by solv ent/clay and acid/clay- percolation processes ARPN J. Eng. Appl. Sci. 2 1034–41
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##tihuan2##The effect of different refining techniques on the oil quality (flash point, pour point, viscosity, metal content, TAN, etc.), chemical composition of refined lubricating oil (by GC–MS,...
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##tihuan2##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 …
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##tihuan2##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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##tihuan2##The acid process followed by clay treatment is the oldest one. This process is capable of producing high-quality base oil with the lowest cost but have the highest environmental risk. ... Many studies have been conducted on the re-refining of used oil using solvent extraction (Whisman et al. 1978; Dos Reis and Jeronimo 1988; Alves dos …
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##tihuan2##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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##tihuan2##This work presents a design of a batch process for re-refining of used lubricating oils using a composite solvent technique. ... Panhwar, M.I., and Kazi, R.A., "Impact of Operating Variables on Re-Refining of Vehicle Waste Oil to Base-Oil by Acid Clay Process", Mehran University Research Journal of Engineering and Technology, Volume …
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##tihuan2##Activated bentonite clay is used as adsorbent. This is done at varying ratios of clay to oil. Fig. 1. Vacuum distillation set-up. Full size image. 2.2.2 Acid Clay Treatment. 1. ... Pavel F (2006) Design aspect of Used Lubricating Oil Re-Refining. Elsevier, Amsterdam. Google Scholar Harika E, Sebastien J, Philippe M, Jean B, Michel F (2011 ...
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##tihuan2##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 …
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##tihuan2##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 220,938,468 papers from all fields of science ... Statistical Model for Re-Refining of Used Lubricating Oil by Solvent ...
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##tihuan2##Bentonite clay, a unique type of clay derived from volcanic ash, has become a staple in the pottery world due to its remarkable properties. This fine-textured clay is known for its versatility and strength, making it an excellent choice for enhancing pottery projects. If you're a potter looking to improve the quality of your ceramic pieces, …
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##tihuan2##Bentonite clay is formed from ancient volcanic ash that was once exposed to seawater, at which point it absorbed a whole lot of minerals. It's often sourced from ancient seabeds (that are now dry land), and its name comes from Fort Benton, Montana—the location of the largest known deposit of bentonite clay. It's also called …
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##tihuan2##Activated bentonite clay was used as an adsorbent for refining used oil. The clay first washed and dried in a furnace at a temperature of 110 o C for 4 hours.
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