Inactivated and acid activated clay [1,[22][23][24][25], attapulgite mineral [3], oil palm ash [2], activated carbon and silica based materials [16, [25][26][27][28] as adsorbent materials for ...
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Several techniques are available for the regeneration of used lubricating oil, among which are chemical treatment (Hani and Al-Wedyan, 2011) acid activated process that is similar to acid-clay ...
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DOI: 10.1016/S0308-8146(02)00551-4 Corpus ID: 96126375; The role of bleaching clays and synthetic silica in palm oil physical refining @article{Rossi2003TheRO, title={The role of bleaching clays and synthetic silica in palm oil physical refining}, author={Margherita Rossi and M. Gianazza and Cristina Alamprese and Ferruccio Stanga}, journal={Food …
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Used oil recycling technology has undergone significant changes over the past decade. With the newly developed re-refining technologies it is possible to produce higher quality base oil compared …
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Re-refining of used lubricating oil has appeared as a valuable technique to re-refining of used engine and industrial oils. This paper focused on the vacuum distillation thin wiped film ...
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Abstract The unique properties of clay and clay minerals had made them valuable in the wide range of industrial applications. Low cost, local availability and …
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Crankcase lubricating oil is composed of 75–85% base oil and the rest is additives. ... the conventional acid-clay method is most appropriate among the waste crankcase lubricating oil re-refining methods. It is ... of dissolved CaSO 4 salt that remained in the oil after neutralization and distillation as well as finer particles of …
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Used oil recycling technology has undergone significant changes over the past decade. With the newly developed re-refining technologies it is possible to produce higher quality base oil compared with the traditional and old acid clay methods. Among other methods used...
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Global "Activated Bleaching Earth for Oil Refining Market" reached a valuation of USD 7.5 Billion in 2023, with projections to achieve USD 12.5 Billion by 2031, a compound annual growth rate (CAGR ...
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Our TONSIL® range of bleaching earth or clay is based on over a century of experience in refining edible oils and fats. Today, Clariant remains a truly global player and thought leader for edible oil purification.
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The presence of hazardous and toxic contaminants in the used oil, also known as black oil, poses threat to the environment and has detrimental impacts. The present study focuses on refining black oil using different adsorbents like activated clay, silica, and conducting polymers (polyaniline) owing to their excellent adsorption property.
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Therefore, domestic oil refining manufacturers regard the oil content of waste clay as an important indicator for the selection of activated clay manufacturers. VI. Acceptance criteria of ...
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Spent bleaching earth (SBE) is a waste created by the vegetable oil refining industries that right now have restricted alternatives for advantageous reuse. An …
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The UGA Group had originally been producing Activated Clay since 1988. ... removal of color and impurities from edible oils, mineral oils and fats. Beginning in 2006, we shifted our production base to Inner Mongolia, China, in order to capitalize on the many competitive advantages on offer, achieving better economies of scale and further ...
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of the degumming acid on performance of the clay during refining of palm oil. Attapulgite clay A from Hudson Resource and acid-activated commercial clay W from the Taiko Group, Malaysia were used as the bleaching clays. MATERIALS AND METHODS Materials Crude palm oils were donated by FELDA Vegetables Oil Products Sdn Bhd, Port Klang, …
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UOP Direct Contact Hydrogenation (DCH) This innovative re-refining technology has evolved from the former commercial petroleum refinery technology [], and involves treating the entire waste oil in a heated hydrogen-rich atmosphere, whereby the yield of recyclable high-quality products is increased by up to 30 %, while at the same time eliminating the …
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This paper proposes a greener approach to the intensification of base oil recovery for truck engines (32,500 km of use) using ethanol, propan-2-ol, 2-methylpropan-1-ol, and butan-1-ol as solvents for the extraction of base oil, combining mechanical stirring (220 rpm) and ultrasound (25 °C, 24 kHz, and 400 W). The results indicated that the …
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PDF | On May 27, 2020, Sharad Shanbhag and others published Refining of used Engine Oil | Find, read and cite all the research you need on ResearchGate
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This study compared the effect of five different adsorbents (activated clay, activated carbon, attapulgite clay, bentonite, diatomite) on the levels of nutrients, harmful substance retention, and decolorization in rice bran oil. Among the adsorbents tested, activated carbon displayed the highest dec …
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A six-step process is first established according to the optimization results of alkali refining, activated clay treatment and alumina treatment of Jatropha curcas seed oil, combined with cold treatment, water washing and high temperature decompression treatment. ... Separation of soap base and oil after alkaline refining at room …
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The results showed that the acid-clay method was effective in re-refining the WCLO and returning the oil to a quality comparable to oils produced from fresh lube oil stocks.
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clay treated cracked naphtha to prevent gums formation in gasoline by removing diolefins [1]. The aim of this review is to summarize the applications of the different types of clay through adsorption process in the petroleum refining industry, such as the removal of sulfur compounds through desulfurization, base oil finishing, the
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At present, activated clay is widely used in edible oils. For example, activated clay is used to adsorb chlorophyll in oil; 0.5% activated clay is added to synergize with monochromatic light to ...
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The process includes various steps like supplementation of glacial acetic acid, mixing, centrifuging, mixing of kaolinite, dehydration and bleaching using activated charcoal.The unit is semi-automated,it is …
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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 …
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The oil is transferred to a new decanter where base oil, which is in a liquid phase, and acid sludge, which is in a solid phase and contains the degradation products during the lubricating life cycle, are separated. To eliminate chemicals that could give the base oil color, activated clay is added to the oil during the clarifying process.
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The used oil regeneration using extraction technique has been widely known as one of the cheapest and most competent processes. This research study the effect of activated clay treatment by nitric acid .The effects of some important factors such as acid concentration and contact time were studied on natural clay. The used oil treated by …
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The regenerated clay and newly activated clay were used to refine the lubricating base oil. Table 6 shows that regenerated clay has a similar ability to lower the oil color number as fresh clay.
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Oil extraction and re-activation of spent bleaching clay issued from re-refining of waste-lubricating oil in Sulaimani city, was studied under the three stages of solvent extraction, calcination ...
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