20 Jul 2015

Sources of Used Oil Samples Ⅱ

From the experiences, many industrial used oils can be easily recycled and reused onsite through simple processing steps. In another way, automotive used oils mostly are collected by commercial recyclers and could become the major source for this research. However, since used oil is categorized as hazardous waste in California, it’s not easy to request used oil samples from commercial recyclers o......

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09 Jul 2015

Sources of Used Oil Samples Ⅰ

 Automotive used oils, including engine crankcase oil, diesel engine oil, and hydraulic brake, transmission, power steering fluids, constitute a large portion of used oils. Sources of used automotive oils are do-it-yourself oil changers (DIYers), service stations, repair and maintenance shops, vehicle dealers, truck and taxi fleets, military installations, and industrial/manufacturing facilities.......

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02 Jul 2015

Pretreatment by Chemical-Aided Ultrasonic Irradiation

  Although the pretreatment methods such as celite treatment, filtration, or washing with filtration developed by BNL were claimed to efficiently remove most of the heavy metal contents from used oil, these methods may not be useful to remove other toxic organic constituents. From an economic point of view, it is better to develop one pretreatment process that can remove all undesirable material......

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17 Jun 2015

Selection of Appropriate Used Oil Feedstock

 Used oil could come from different sources, though the two major categories are automotive used oil and industrial used oil. They may contain a very wide range of contaminants at various levels, and this makes the quality control and homogeneity of the used oil feedstock more difficult to achieve. We have also reviewed the two most popular technologies for used oil recycle/reuse options – repro......

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07 Jun 2015

Selection of Appropriate Used Oil Feedstock

 Used oil could come from different sources, though the two major categories are automotive used oil and industrial used oil. They may contain a very wide range of contaminants at various levels, and this makes the quality control and homogeneity of the used oil feedstock more difficult to achieve. We have also reviewed the two most popular technologies for used oil recycle/reuse options – repro......

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27 May 2015

Problems with Contaminants from the used oil

 When the chemical-aided ultrasonic irradiation method was proposed as the pretreatment process for biochemical process, we looked into the possibility to adopt this method as the pretreatment step for other used oil recycling/reusing processes if it proves to be economically feasible. Since the undesirable toxic contaminants in used oil that cause problems in other reclaiming, reprocessing or re......

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19 May 2015

Techno-Economic Evaluation of Used Oil Recycling

 The price of virgin oil dramatically affects the used oil management system,because used oil competes with virgin oil as a source of fuel and as a base stock for lubricating oil. Like all recycling markets, recycled oil products must be sold at a lower price than virgin oil products in order to compete. Used oil recyclers must cover the costs of collecting and recycling used oil, as well as main......

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12 May 2015

Current Recycle/Reuse Programs on Used oil Markets

 Used oil is not only a big problem for whole world,it also creates problems in every single country since it generates such large quantities of waste.In the process of evaluating the fesaibility of adaptation of biocemcial process for the used oil worldwide,efforts were done in surveying annual quantities of used oil generated and existing recycle/reuse programs in different countries.Regulatory......

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04 May 2015

Converting Used Oil into Valuable Bioproducts

 The change in virgin crude oil price can directly affect the used oil recycling options.if the crude oil prices drop,petroleum product prices will fall accordingly.Gasoline and fuel oil prices track crude oil prices very closely,while lubricating oil prices react very slow with crude oil price changes since lube oil contains many additives and other components that add to the final product cost.......

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28 Apr 2015

Reclaiming Of Used Oil

 There are many companies devoting their efforts to developing technologies for re-refining uses oils,profitable used oil re-refining has not been so widespread due to the high capital and operating cost. The use of waste lubricants for alternate, less strenuous lubricants applications is a common practice.Some specific types of industrial oils can be readily segregated and are suitable for relat......

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21 Apr 2015

Re-refining Of Used oil

 Used oil can be re-refined into base lube oil.Lube oil is a premium substance that can be re-refined and reused again and again.In general,water and dissolved low boiling point organic and removed by atmospheric or moderate vacuum distillation..Lube oil is then recovered and fractionated by distillation.Light ends by products are commonly used for plant combustion fuels.Diesel fraction and gas o......

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13 Apr 2015

Reprocessing Of Used Oil

 One of economically attractive ways to manage used oil is to burn it as fuel.Thus,most used oil being reprocessed is utilized as fuel.Compared to direct burning,the major advantage form reprocessing used oil is that it improves the burning quality of used oil by removing or reducing some contaminants.A typical used oil reprocessing system is simplified as shown in Figure 2-3.Processes such as ad......

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