Comprehensive characterization of engine deposits from fuel containing MMT®
| Autor: | John G. Reynolds, Art J. Nelson, Joseph W. Roos |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Environmental Engineering
Chemistry Scanning electron microscope Analytical chemistry Methylcyclopentadienyl manganese tricarbonyl Crystal structure Mass spectrometry Pollution Characterization (materials science) chemistry.chemical_compound Environmental Chemistry Combustion chamber Waste Management and Disposal Chemical composition Petrol engine |
| Zdroj: | Science of The Total Environment. 295:183-205 |
| ISSN: | 0048-9697 |
| Popis: | Combustion chamber deposits from a 1996 GM3800 engine operating on a base fuel or the base fuel containing the organometallic antiknock additive methylcyclopentadienyl manganese tricarbonyl were examined. Scanning Electron Microscopy and Energy Dispersive X-ray spectroscopic analysis were performed to identify the morphology and the bulk chemical composition. Glow-Discharge Mass Spectrometry and X-ray Diffraction analyses were also used to characterize the bulk chemical composition and crystalline structure of the deposits. In addition, X-ray photoemission and X-ray photoabsorption spectra for the deposits were compared to a series of Mn compounds to model and aid quantification of the constituents. Results reveal a mixture of Ca-sulfate, Mn-phosphate and Mn-oxide in the bulk of the deposits and a mixture of Mn-sulfate, Mn-phosphate and Mn-oxide on the surface of the deposits. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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