Assessment of size distribution of aerosols at kitchen environments in Delhi, India

Singh, Akash Kumar; Hazarika, Naba; Kumar, Ujjwal; Srivastava, Arun

doi:10.1016/j.uclim.2021.100819

Cited by 1 publication

(1 citation statement)

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“…In 2009, Singh et al [6], investigated an extraction adsorption combo-process for regeneration of used oil, where N-methylpyrrolidone (NMP) was taken as solvent in continuous phase and used oil distillate as dispersed phase and activated charcoal was used as adsorbent to improve the colour of re-refined oil. In order to attain the stringent limits for sulfur content in re-refined used oil, solvent free raffinate was percolated through charcoal bed to further complement extraction step.…”

Section: Introductionmentioning

confidence: 99%

Regeneration of Engine Used Oils by Solvent Extraction

Sadraddin

Haji²

2022

Iraqi Journal of Science

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The regeneration of used oil is one of the essential processes for economical, industrial and environmental targets. Used oil is rich of hydrocarbons, metals (such as: aluminium, chromium, copper, iron, lead, manganese, nickel, silicon and tin), gasoline, water and antifreeze. Due to the high increasing rate of the number of cars, there is a huge quantity of used oil. In this study, different brands of used oil were involved in extraction and adsorption processes as a regeneration process of these used oils. The optimum conditions were determined such as solvents composition, solvent: oil ratio, KOH concentration and temperature. The solvent mixture of 40% of petroleum ether, 11% of 1-butanol and 4% of 2-propanol has shown the best results in removing sludge. The 3:1 (solvent: oil) ratio may be considered as the best ratio practically and economically.

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Section: Introductionmentioning

confidence: 99%