Obtaining zeolite A from filtrate of zeolite LSX and its influence on the removal of heavy metals and organic pollutants in spent lubricating oil

Abstract

Zeolites A was synthesized from alternate sources such as filtrate from synthesized zeolite LSX and aluminate solution extracted from bauxite which produced a very good yield. The synthesized zeolite type was characterized by X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDX). The synthesized product showed a high degree of crystallinity from the XRD results. When applied to a spent lubricating oil, the efficiency in removing the heavy metals was: 23.4% Fe, 96.8% Zn, 19.0% Cu, and 12.0% Cr. The saturates in the regenerated oil were 80% carbon, 4% residue, and 16% aromatics as compared to that of a commercial virgin oil that contained 84% saturates, 3% carbon residue, and 13% aromatics. This indicated that the spent oil can be reused.

Characterization of Metakaolin from Wassa Kaolin and Its Potential as Adsorbent for the Regeneration of Used Engine Lubrication Oil

“…e filtered oil was further filtered using a centrifuge set at 1000 rpm for 30 minutes. e collected and filtered oil was allowed to settle for twenty-four hours [10].…”

“…Recycled Lubricant e importance of the flashpoint of an engine oil indicates how the oil is tainted. A low flash point of engine oil is a solid indicator because the oil is contaminated with volatile items, such as gasoline [10].…”

“…At this point, we termed the lubricant as used engine lubricating oil [9]. If not well disposed of, these used lubricants can have severe effects on our health [10]. Disposing of these lubricants by burning them contributes to the environment's aerosols or greenhouse gases.…”

“…Used oils are one of the most significant amounts of liquid, nonaqueous hazardous waste on Earth [9]. erefore, we need to regenerate these used lubricants to preserve our natural resources and protect our environment from these dangerous wastes [10].…”

Multilevel factorial design for removing lead from used lubricating oil by zeolite Na-A

“…According to international regulations, waste lubricants are considered hazardous substances and the use of these waste oils causes problems. Fuscous has been spent to remove heavy metals from oil sludge [5], used lubricating oil [6,7,8,9], and Refinery effluents [10]. The common method used in removing the heavy metals process in its first stage includes dilution of oil by organic solvents like Hexane, acetone, 2-propanol.…”