Waste engine oil re refining and energy recovery pdf

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waste engine oil re refining and energy recovery pdf

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Used oil is any oil, whether refined from crude or synthetic, that has been contaminated by physical or chemical impurities as a result of use.

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Waste Engine Oils

Automotive oil recycling involves the recycling of used oils and the creation of new products from the recycled oils, and includes the recycling of motor oil and hydraulic oil. Oil recycling also benefits the environment: [1] increased opportunities for consumers to recycle oil lessens the likelihood of used oil being dumped on lands and in waterways. For example, one gallon of motor oil dumped into waterways has the potential to pollute one million gallons of water.

Recycled motor oil can be combusted as fuel, usually in plant boilers, space heaters, or industrial heating applications such as blast furnaces and cement kilns.

Used oil re-refining is the process of restoring used oil to new oil by removing chemical impurities, heavy metals and dirt. The used oil is first tested to determine suitability for re-refining, after which it is dehydrated and the water distillate is treated before being released into the environment. Dehydrating also removes the residual light fuel that can be used to power the refinery, and additionally captures ethylene glycol for re-use in recycled antifreeze.

Next, industrial fuel is separated out of the used oil then vacuum distillation removes the lube cut that is, the fraction suitable for reuse as lubricating oil leaving a heavy oil that contains the used oil's additives and other by-products such as asphalt extender. The lube cut next undergoes hydro treating, or catalytic hydrogenation to remove residual polymers and other chemical compounds, and saturate carbon chains with hydrogen for greater stability. Final oil separation, or fractionating, separates the oil into three different oil grades: Light viscosity lubricants suitable for general lubricant applications, low viscosity lubricants for automotive and industrial applications, and high viscosity lubricants for heavy-duty applications.

The oil that is produced in this step is referred to as re-refined base oil RRBL. The final step is blending additives into these three grades of oil products to produce final products with the right detergent and anti-friction qualities.

Then each product is tested again for quality and purity before being released for sale to the public. But you can not simply compare those ratios and conclude that refining from crude is immensely inefficient. Crude oil refining yields large amounts of fuels. Below is a comparison of refining from used motor oil and refining from crude.

The sludge "residue" associated with engine oil recycling, which collects at the bottom of re-refining vacuum distillation towers, is known by various names, including "re-refined engine oil bottoms" abbreviated "REOB" or "REOBs".

A report from the U. Some producers of asphalt for paving have—openly or secretly—incorporated REOBs into their asphalt, creating some controversy and concern in the traffic engineering community, with some experts suggesting it reduces the durability of the resulting pavement.

From Wikipedia, the free encyclopedia. See also: Motor oil: Re-refined motor oil. Environment portal Cars portal. The Oil Daily. Retrieved April 17, Environmental Encyclopedia. Loughborough University. Retrieved March 22, United Nations Environment Programme. Retrieved November 27, Waste Management. September Resource Recycling. May Archived from the original PDF on September 30, Retrieved Department of Transportation.

Cogeneration Composting Container deposit legislation Dumpster diving Ethical consumerism Freeganism Simple living Waste Waste-to-energy Waste collection Waste management law Waste management Waste management concepts. Environment portal Category by country by material by product organizations Index Commons. Categories : Motor oils Vehicle recycling Recycling by product Water pollution.

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Re-refining Technologies

These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.

Engine oils are made from crude oil and its derivatives by mixing of certain other chemicals additives for improving their certain properties. Lubricating oil is used to lubricate moving parts of engine, reducing friction, protecting against wear, and removing contaminants from the engine, act as a cleaning agent, and act as an anticorrosion and cooling agent. This research effort focuses on comparative study of re-refined engine oils by extraction of composite solvent, single solvent, and acid treatment methods. Composite solvent was made up of butanol-propane and butanone; propane was used as single solvent. Different properties of refined oil and waste oil were analyzed, such as cloud and pour point, flash point, specific gravity, ash content, viscosity, moisture ratio and acid value. Results from the flash point, pour point, viscosity, specific gravity, and ash percentage were improved at different degrees, but the best results were seen by using the composite solvent with having drawback of expensiveness. Large quantity of used engine oils from different sources is disposed as a harmful waste into the environment in Pakistan [ 1 ], and disposal of used oil in Arabian Sea, rivers, and lakes in the environment creates series of problems; their disposals in water bodies not only contaminate water but are also harmful to fresh water and marine life.

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Used oil reclaiming ; Used oil re-refining ; Used oil recycling ; Waste oil re-refining ; Waste oil recycling. Re-refining is the used oil processing aiming at recovering a valuable resource of mineral base oil, being as good as or better than the virgin base stock, and from which any petroleum-based lubricant can be produced. They involve several processing steps and hydrogenation. In the entry on used oil disposal and collection, we looked at the problems associated with used oil, its use as fuel, and simple recycling.

Waste Engine Oils presents a complete description of the field of engine used oils, widely collected in the networks of services-stations and garages. It describes the manufacture of base oils in refineries, and mentions the main additives playing an essential role in the quality of the marketed finished oils. The organization of the different systems of collecting in order to obtain a waste oil regenerable or used as fuel are explained.

These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online.

Re-refining Technologies

Automotive oil recycling

Automotive oil recycling involves the recycling of used oils and the creation of new products from the recycled oils, and includes the recycling of motor oil and hydraulic oil. Oil recycling also benefits the environment: [1] increased opportunities for consumers to recycle oil lessens the likelihood of used oil being dumped on lands and in waterways. For example, one gallon of motor oil dumped into waterways has the potential to pollute one million gallons of water. Recycled motor oil can be combusted as fuel, usually in plant boilers, space heaters, or industrial heating applications such as blast furnaces and cement kilns. Used oil re-refining is the process of restoring used oil to new oil by removing chemical impurities, heavy metals and dirt. The used oil is first tested to determine suitability for re-refining, after which it is dehydrated and the water distillate is treated before being released into the environment.

Коды, с которыми столкнулось агентство, больше не были шифрами, что разгадывают с помощью карандаша и листка бумаги в клетку, - теперь это были компьютеризированные функции запутывания, основанные на теории хаоса и использующие множественные символические алфавиты, чтобы преобразовать сообщение в абсолютно хаотичный набор знаков. Сначала используемые пароли были довольно короткими, что давало возможность компьютерам АНБ их угадывать. Если искомый пароль содержал десять знаков, то компьютер программировался так, чтобы перебирать все комбинации от 0000000000 до 9999999999, и рано или поздно находил нужное сочетание цифр. Этот метод проб и ошибок был известен как применение грубой силы.

Si! - вскрикивала она в интервалах между его рывками и впивалась ногтями ему в спину, стараясь ускорить его движения. Все смешалось в ее голове - лица бесчисленных мужчин, склонявшиеся над ней, потолки гостиничных номеров, в которые она смотрела, мечты о том, что когда-нибудь все это кончится и она заведет детей… Внезапно, без всякого предупреждения, тело немца выгнулось, замерло и тут же рухнуло на. Это. - подумала она удивленно и с облегчением и попыталась выскользнуть из-под. - Милый, - глухо прошептала .


PDF | Abstract Used oil – as its name implies – is any petroleum -based or best methods of used oil re-refining and compares its product specifications with those lubrication, cutting purposes, heat transfer, hydraulic power or insulation in.


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