One of the most efficient processes This hazardous waste oil needs proper for this purpose is hydro-treating, which is discussed management to maximize the amount of used oil in the present article. S, ]. This used lubricating oil has higher The first category is one of the best one and values of ash, carbon residue, asphaltenic materials, is the subject of this study.
The second one is not like, aldehydes, alcohols, phenolic compounds, acidic good as re-refining though produces acceptable compounds, non-stable products of hydrocarbons cracked products, where as the third one pollutes poly-condensation poly-nuclear aromatics, gums, the environment, as produces a lot of ash, which water, and other dirty materials; which are built contains heavy metals.
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In developing the following during the course of lubrication inside the engine. It absorbs NOx and the representatives of existing regeneration methods: acidic fuel combustion exhaust gas also, besides these compounds fuel, lubricating oil additives A Vacuum distillation plus clay treatment degradation products, fuel additives, dust, and soot B Vacuum distillation plus chemical treatment gradually reduces the lubricating oil quality.
C Hydrogen pre-treatment plus vacuum distillation Furthermore, the metallic scrapings act as catalysts at the high combustion temperature and oxygen At present, there are two most common vicinity, produce an asphalt-like sludge which technologies for used oil re-refining are: Sulfuric increases the viscosity. In the first very dangerous, so burying or using it in road re-refining method, some references quoted around pavements are not good ways for its disposal[2 tons of environmentally harmful by-products Missouri Department,].
Used oil was burnt generation, versus each tons of used oil many decades ago as a low grade fuel, but now this processed [Whisman M. To avoid from harmful product some to air. The importance of used oil re-refining is eliminate the catalyst bed plugging constituents such that the U.
The chemistry of hydro-treating lube oil is different In this experimental research, regenerated from those of light and middle petroleum cuts and the distillate hydro-cracking catalyst HC — was main objective of virgin base oil hydro-treatment used for the economic benefits can be greatly before being used is controlling its color stability, enhanced for refineries having such plants. In case of more severe conditions Liquid Hourly Space Velocity: 1 — 2.
In this dehydrator test, Another important aspect of this method is that, this when using the spent catalyst, a special preparation process has many advantages: Produces of high process has been done on it. Viscosity Index lube oil with well oxidation resistance and a good stable color and yet having low or no discards. At the same time, it consumes bad quality feed. In addition to that this method has advantage that all of its hydrocarbon products have good applications and product recovery is high with no or very low disposals.
Used Lubricating Oil Re-refining Systems
Other hydrocarbon products are: In oil refinery the light —cuts can be used as fuel in the plant itself. Gas oil may be consumed after being mixed with heating gas oil and the distillation residue can be blended with bitumen and consumed as the paving asphalt, because it upgrades a lot its rheological properties. Also, it can be used as a concentrated anti-corrosion liquid coating, for vehicles frames.
As in first stage process removes water from Equipment and Experimental Method the feedstock and in the second stage catalyst is This experimental research work was carried washed by naphtha in a vessel equipped with a out on pilot scale rig that was designed and fabricated mechanical mixer to remove hydrocarbons on its on batch system, the various technologies were surface and then dried it for 24 hours in an oven at studies while designing and fabrication of pilot scale oC.
At this step, the catalyst is washed by 0. This pilot scale rig was developed to treat kept constant at oC, for 5 hours and after that pre- the used oil by with sulphuric acid or solvent to sulfiding step was done on it.
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Then, hydrocracker treated. This pilot scale rig was installed in gas oil containing 1 to 2 wt. It was fabricated in then to oC, during another 5 hours.
After stainless steel with brass and copper fittings equipped remaining for 12 hours in these conditions, the pre- sulfiding stage is finished. These conditions have Table 3- The chlorine content measurement in some been maintained for 12 hours, and give us the lubricating oils required catalyst. The chlorine refined oil product is compatible with the content were taken into consideration in re-refined oil specifications of new virgin oil; secondly this method studies, there is no indication of PCB traces found in also meet all the required technical and all chlorine.
Design Aspects of Used Lubricating Oil Re-Refining - 1st Edition
Add to cart Buy now. Sign in to add to Wish List. Design Aspects of Used Lubricating Oil Re-Refining presents a feasible and comprehensive technology for recycling of used lubricating oils. This book discusses efficient and effective ways of reusing lubricating oil which, if implemented, will result in a better quality of life, the stability of the environment, the health of national economies and better relationships between nations.
It presents essential experimental results for process designers and engineers to establish a complete process design.