Evaluation of physico-chemical properties of re-refined lubricating oils obtained from fabricated packed bed reactor

Adeyemi, A. F.; Adebiyi, F. M.; Koya, O. A.

doi:10.1080/10916466.2017.1359624

Cited by 5 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ULOs that were only subjected to temperatures of 80 and 100 °C did present a significant difference with respect to the control (P>0.05). Similar studies obtained a density of 0.87 g/cm 3 and from 0.87 to 0.91 g/cm 3 [26,27,28] which are important results, since these values of density, are an indication that they treatment processes have removed contaminants from the ULOs. The previous results exceed those found in this study which was 0.84 g/cm 3 , but it is slightly above the value of commercial diesel which has a density of 0.83 g/cm 3 [29] and is used to prepare oil-based drilling fluids [14].…”

Section: Ulos Densitysupporting

confidence: 59%

Refining Used Lubricant Oils with Different Concentration Levels of Sulfuric Acid and Nonylphenol

Alvarez-Rivera¹,

Nájera²,

Urrieta-Saltijeral³

et al. 2023

Tribol. Ind.

View full text Add to dashboard Cite

The purpose of this research was to evaluate the refining of used lubricating oils (ULOs), and their possible use as drilling fluids. 17 treatments were evaluated and sulfuric acid and nonylphenol were used as reagents at concentrations of 0.12, 0.24 and 0.36 g/mL and temperatures of 40, 60, 80 and 100 °C. AT80 and AT100 ULOs treated at 80 and 100 °C without reagents, presented an average density of 0.84 g/cm-3, a viscosity of 76.3 and 75.3 cP, an electrical stability of 1,731.3 and 1,394.6 V and a flash point of 183 and 190 °C as higher. The ST40C1 and ST40C2 treatments, added with reagents, showed similar results to AT80 and AT100 in the evaluated variables, but they are more expensive treatments. According to the results, it is concluded that the refined ULO can be a substitute for the oil used in the formulation of oil-based drilling fluids.

show abstract

Section: Ulos Densitysupporting

confidence: 59%

Refining Used Lubricant Oils with Different Concentration Levels of Sulfuric Acid and Nonylphenol

Alvarez-Rivera¹,

Nájera²,

Urrieta-Saltijeral³

et al. 2023

Tribol. Ind.

View full text Add to dashboard Cite

show abstract

“…The results of flash point are also related to oxygen materials, which have a higher percentage in used lubricating oil due to the presence of aldehydes and ketones. (Whose locations were determined from the FTIR) that these substances reduce the flash point [4], [31].…”

Section: Flash Pointmentioning

confidence: 99%

Purification of Used Lubricating Oils Using Vacuum Distillation

Al-Nidawi,

Ahmed,

Chali

et al. 2024

Journal of Petroleum Research and Studies

View full text Add to dashboard Cite

Engine oil (EO) is produced by mixing base oil derivatives from crude oil with chemical additives to the lubricity of moving parts and reduce the friction inside the engine. Used lubricating oil (ULO) is one of the hazardous materials that consists of pollution harmful to the environment, it needs to be managed properly. In this work, vacuum distillation technique is used to recycle used lubricating oil. Used lubricating oil samples from two different brands of diesel engine oil (20w-50) and gasoline engine oil (10W-30) are used in this study. Various properties of ULO and recycled oil were characterized such as kinematic viscosity, viscosity index, density, pour point, flash point, Sulphur content, and Fourier transform Infrared spectroscopy FTIR. The yield recycles for ULO of gasoline engines, diesel engines, and mix (gasoline and diesel) by vacuum process were 85%, 74%, and 75% respectively, it was discovered that the sulfur component decreased from 9792.3 ppm of ULO to 405 ppm of yield distillates. The pour point results show an increase from -30 °C of used lubricating oil to -18 and -6 for distillates cut for vacuum distillation, compared to the pour point of Iraqi base oil 40 and 60 Stook (SN150 and SN200) -18 °C and -6 °C

show abstract

“…[ 8 , 9 ]. Hydrofining technology is one of the most common technologies for the recycling of spent lubrication oil [ 10 , 11 , 12 ]. It possesses many advantages, such as a large treatment capacity, high recovery rate, good product quality, etc., despite its huge initial input costs.…”

Section: Introductionmentioning

confidence: 99%

Solid Fe Resources Separated from Rolling Oil Sludge for CO Oxidation

Gao

Tang

et al. 2022

IJMS

View full text Add to dashboard Cite

The efficient recycling of valuable resources from rolling oil sludge (ROS) to gain new uses remains a formidable challenge. In this study, we reported the recycling of solid Fe resources from ROS by a catalytic hydrogenation technique and its catalytic performance for CO oxidation. The solid Fe resources, after calcination in air (Fe2O3-H), exhibited comparable activity to those prepared by the calcinations of ferric nitrate (Fe2O3-C), suggesting that the solid resources have excellent recycling value when used as raw materials for CO oxidation catalyst preparation. Further studies to improve the catalytic performance by supporting the materials on high surface area 13X zeolite and by pretreating the materials with CO atmosphere, showed that the CO pretreatment greatly improved the CO oxidation activity and the best activity was achieved on the 20 wt.%Fe2O3-H/13X sample with complete CO conversion at 250 °C. CO pretreatment could produce more oxygen vacancies, facilitating O2 activation, and thus accelerate the CO oxidation reaction rate. The excellent reducibility and sufficient O2 adsorption amount were also favorable for its performance. The recycling of solid Fe resources from ROS is quite promising for CO oxidation applications.

show abstract

Evaluation of physico-chemical properties of re-refined lubricating oils obtained from fabricated packed bed reactor

Cited by 5 publications

References 10 publications

Refining Used Lubricant Oils with Different Concentration Levels of Sulfuric Acid and Nonylphenol

Refining Used Lubricant Oils with Different Concentration Levels of Sulfuric Acid and Nonylphenol

Purification of Used Lubricating Oils Using Vacuum Distillation

Solid Fe Resources Separated from Rolling Oil Sludge for CO Oxidation

Contact Info

Product

Resources

About