Kinetic model for removing phosphorus and zinc from waste lubricating oil by pyrolysis

Jiang, Zhenxin; Chu, Qingyan; Yang, H.; Zhao, Rongrong; Yu, Yueman; Wang, Ming; Liu, Ransheng

doi:10.1016/j.psep.2021.02.021

Cited by 10 publications

(2 citation statements)

References 33 publications

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“…A relatively very high concentration of available P in the polluted soil suggests contamination. Studies by Jiang et al (2021) revealed that high levels of Zn and P are found in waste lubricating oil among other elements. These elements are mainly from zinc dialkyl dithiophosphates (ZDDPs) which are commonly used lubricant additives.…”

Section: Resultsmentioning

confidence: 99%

Assessment of Soil Physicochemical Properties and Total Petroleum Hydrocarbon of a Three-Decade-Old Polluted Site at Evbareke, Benin City

OKONOKHUA,

AGHIDI

2024

AJHSE

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Monitoring of polluted sites require their assessment for effective management and environmental protection. This study assessed the soil properties including heavy metals (Fe, Zn, Mn, Cu, Cr, Pb, Cd and Ni) and total petroleum hydrocarbon (TPH) of a three-decade-old automobile workshop in Benin City. Top soil samples collected from outside the workshop and a control were analyzed using standard laboratory methods and their mean values were compared with critical limits for interpreting soil fertility as well as pollution status. The results showed that the texture of the polluted soil was unchanged but the pH has been modified from strongly to slightly acidic. Relatively slightly higher concentrations of the measured fertility parameters of the polluted site were not substantial for the very low organic C, N and Mg as well as the low for Ca, Na and EC because their ratings were not different from those of the control unlike the high ratings for K and P compared to medium and low in the control, respectively. Concentration of EA of the polluted soil was rated low as the control while effective CEC (cmol/kg) was low for the polluted (6.42) site compared to very low (4.80) of the control. Higher concentrations (mg/kg) of heavy metals in polluted soil were < their DPR target values, except Cd (5.1) which exceeded its limit (0.8). Increased concentration (mg/kg) of TPH from 0.22 to 825 was < its target value of 1,000. Decontamination of Cd from site should be carried out to avoid ill health of workers.

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Section: Resultsmentioning

confidence: 99%

Assessment of Soil Physicochemical Properties and Total Petroleum Hydrocarbon of a Three-Decade-Old Polluted Site at Evbareke, Benin City

OKONOKHUA,

AGHIDI

2024

AJHSE

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“…Processing into fuel gas is also considered in article [49]. The problem of removing ash elements on the example of zinc and phosphorus is also touched upon by other scientists [50], which is also done by pyrolysis and is quite effective: the product contains 4 ppm of phosphorus and 1 ppm of zinc (the "before" concentrations are 647 ppm and 686 ppm, respectively). A summary analysis of the composition of waste motor oils and some of their properties is given in Figure 2.…”

Section: Waste Lubricating Oilsmentioning

confidence: 99%

New Prospects of Waste Involvement in Marine Fuel Oil: Evolution of Composition and Requirements for Fuel with Sulfur Content up to 0.5%

Nelyubov,

Fakhrutdinov,

Sarkisyan

et al. 2023

JMSE

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Research was carried out on the possibility of involving oil refining wastes and petrochemical by-products in marine fuel oil. It was shown that the properties of the studied products (VAT distillation residue of butyl alcohols, heavy pyrolysis tar, desalted phenol production tar, waste motor oil mixture) mainly differ from primary and secondary oil refining products used in this fuel with increased toxicity (hazard classes 2 and 3). A clear disadvantage of waste motor oils is an increased content of metals, particularly zinc, calcium and phosphorus, which leads to high ash content. Recommended concentrations for introducing components into marine fuels are given. The influences of the composition and sulfur content on operational properties and quality indexes of VLSFO were also studied. It is shown that the use of products of deep hydrotreatment of vacuum-distillate fractions of oil processing can worsen its protective (anticorrosive) properties and colloidal stability; therefore, a reduction of sulfur content below 0.1% in this fuel is inexpedient without the use of additives. The requirements for VLSFO quality indicators have been developed. Application of VLSFO corresponding to the developed requirements will provide an increase in performance of ship power plants and the stability of VLSFO quality, which will contribute to cost reduction of ship owners when using it.

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Colloidal stability, pyrolysis properties and kinetics studies of calcium-containing detergents

Yang,

Jiang,

Jiang

et al. 2024

J Therm Anal Calorim

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Kinetic model for removing phosphorus and zinc from waste lubricating oil by pyrolysis

Cited by 10 publications

References 33 publications

Assessment of Soil Physicochemical Properties and Total Petroleum Hydrocarbon of a Three-Decade-Old Polluted Site at Evbareke, Benin City

Assessment of Soil Physicochemical Properties and Total Petroleum Hydrocarbon of a Three-Decade-Old Polluted Site at Evbareke, Benin City

New Prospects of Waste Involvement in Marine Fuel Oil: Evolution of Composition and Requirements for Fuel with Sulfur Content up to 0.5%

Colloidal stability, pyrolysis properties and kinetics studies of calcium-containing detergents

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