Energy conservation through recycling of used oil

Pawlak, Zenon; Urbaniak, Wiesław; Kałdoński, T.; Styp-Rekowski, M.

doi:10.1016/j.ecoleng.2010.08.007

Cited by 22 publications

(11 citation statements)

References 9 publications

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“…Moreover, such management poses a potential environmental threat [6]. The utilization of used oil as a preservative agent for wood or machine causes its permeation into the soil as a result of, for instance, washing off through precipitation.…”

Section: Resultsmentioning

confidence: 99%

Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Zając¹,

Szyszlak-Bargłowicz²,

Słowik³

et al. 2015

Pol. J. Environ. Stud.

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Taking into consideration the fact that used oils are considered hazardous and extremely toxic, their subsequent use creates a real threat to the environment. The only effective measure for protecting the natural environment from used oil contamination is collection and controlled utilization. Only appropriate used oil management can guarantee minimal environmental contamination and prevent its irreversible degradation.The aim of our study was to determine the content of select heavy metal elements in used engine oils originating from agricultural tractors and agricultural machines of varying mileage. The tests were carried out by using the HD XRF method. The researched samples showed a high content of zinc remaining at 726-1,389 mg·kg , and Pb 0.9-13.71 mg·kg -1 . Mercury and cadmium were not found in the tested oils.

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Section: Resultsmentioning

confidence: 99%

Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Zając¹,

Szyszlak-Bargłowicz²,

Słowik³

et al. 2015

Pol. J. Environ. Stud.

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“…Motor oil originates from base oils obtained from petroleum fractions. Petroleum, however, contains only a small percentage (2-4 %) 1 of components suitable for this purpose. The main base oil constituents are paraffins, olefins, aromates and cyclanes.…”

Section: Introductionmentioning

confidence: 99%

“…31 In the EU, at present, about 50 % of used oils are collected, of which approximately 87 % are incinerated and 13 % regenerated. 1 In UMO, high levels of toxic heavy metals are accumulated, originating from both abrasion and additives. The heavy metals involved are particularly Pb, Zn, Cu, Cd, As, Cr and others.…”

Section: Introductionmentioning

confidence: 99%

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Study of polyaromatic hydrocarbons in current used motor oils

Cvengroš¹,

Liptaj²,

Prónayová³

2017

IPCSE

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Used motor oils (UMO) are hazardous wastes due particularly to the content of polyaromatic hydrocarbons (PAH) which accumulate in UMO primarily as result of incomplete combustion of fuel. Thus, UMO constitute exceptionally harmful contaminants polluting the environment. This statement had full validity in the latter half of the past century, authentically reflecting an issue that actually had existed at that time. However, the progress in the field has substantially increased the quality of UMO so that it is now possible to consider whether the current UMO are or are not hazardous wastes. In this article, two methodologies were used for PAH evaluation, the IP 346 method with permitted value of the main cancerogene benzo(a)pyrene (b(a)p) 0.005%. and the methodology based on 1 H NMR spectroscopy, where the proportion of bay hydrogens (Hbay) must not exceed 0.35% of all the hydrogens present, respectively. 32 UMO samples were tested for PAH content and it was stated that every sample was well below the permitted limits. Also, heavy metal content in selected samples shows the levels order of magnitude lower than the maximum permitted values. This creates the possibility of energy utilization of UMO at the place of their obtaining without unnecessary legislation measures.

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“…While hydrocracking and incineration can give rise to only one second use for the waste oil, recovery for recycle provides the opportunity to achieve multiple reuse stages for recycled oils and should, with the use of suitable technologies, be the preferred management option. In 2010 the estimated annual consumption of lubricating oil in 15 EU countries (Pawlak et al, 2010;Hsu and Liu, 2011) was about 5Mt with only 1.7Mt being recovered for reuse.…”

Section: Introductionmentioning

confidence: 99%

Recovery of lubricant base oils using ionic liquid processes

Grimes¹,

Thompson²

2016

Proceedings of the Institution of Civil Engineers - Waste and R

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Two novel low-temperature ionic liquid processes are developed for the recovery of base oils from waste lubricant oils. One uses 3-(triethoxysilyl)-propylammonium-3-(triethoxysilyl)-propyl carbamate (TESAC), in which the waste lubricant base oil is insoluble, and the other uses trihexyltetradecylphosphonium chloride (P6, 6, 6, 14Cl) in which the base oil is soluble. In the TESA/TESAC process waste oil components, including the base oil, are dissolved in the solvent 3-aminopropyl-triethoxysilane (TESA) which is converted, in situ, with carbon dioxide to TESAC, recovering the base oil as an insoluble layer. In the P6,6,6,14Cl process the base oil is separated from most additives as a solution in the ionic liquid from which it can be extracted with methanol. The recovered oils from both processes have properties consistent with lubricant oils in commercial use and the ionic liquids can be recovered for recycle minimising reagent use and providing a route to closed-loop base oil recovery and recycle.

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Energy conservation through recycling of used oil

Cited by 22 publications

References 9 publications

Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Designation of Chosen Heavy Metals in Used Engine Oils Using the XRF Method

Study of polyaromatic hydrocarbons in current used motor oils

Recovery of lubricant base oils using ionic liquid processes

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