Waste lubricating oil research: a comprehensive characterization of five typical re-refinery feedstocks. Part 5

Abstract

By use of procedures developed previously at this research center, five feedstock samples of used lubricating oil obtained from re-refineries were characterized indetail. A combination of si lica-aluminti gel and gel permeation chromatography was used to separate the oi Is into simpler fractions for analysis by low voltage mass spectrometry. The data show the various samples to be extremely similar, implying that an acceptable reclamation procedure should produce consistent re-refinery product with minimal effects from feedstock variations.

Assessment of heavy metals and characterization of fresh and used engine oils in different automobile

“…Moreover, there was dominance of benzene and naphthalene base compounds which include 1-methyl benzene, 1,3 dimethyl benzene, 1-ethyl-2,4-dimethyl benzene, 1,2,4,5-tetra methyl benzene,1-methyl naphthalene, 2-methyl naphthalene and naphthalene for E1 and 1-methylethyl benzene, 1-ethyl-3-methyl benzene, Cyclopropyl benzene, 1,2,4,5-tetra methyl benzene and 1-methyl naphthalene for E2. This result is in agreement with the work of Dabai and Bello (2019) [6] ; Dabai (2012) [7] who identify 1,2,3-tri methyl benzene, 1-ethyl-2-methyl benzene and propenyl benzene in used oil and slightly with work of Cotton et al (1997) [5] who detected the presence of naphthalene, di naphthalene anthracenes and ace naphthalene's in used oil samples and also work of Elena-Rosado and John (2003) [9] in which they detected benzene base compounds like 1,2-dimethyl benzene, 1,2,3-tri methyl benzene, 1-ethyl-2-methyl benzene, 1-ethyl-3-methyl benzene, 1,2,3,5-tetra methyl benzene, and also naphthalene base compounds which include 2-methyl naphthalene, naphthalene and 1-methyl naphthalene in used motor oil sample. However, indene was detected in E2.…”