AFM Characterization of Organic Deposits on Metal Substrates from Mexican Crude Oils
| Autor: | J. C. Manzano-Martinez, Simon Ivar Andersen, C. Lira-Galeana, N. Batina |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
chemistry.chemical_classification
education.field_of_study Morphology (linguistics) Chemistry General Chemical Engineering Population Energy Engineering and Power Technology Mineralogy Light scattering Characterization (materials science) Dilution Metal Fuel Technology Hydrocarbon Chemical engineering visual_art visual_art.visual_art_medium education Chemical composition |
| Zdroj: | Energy & Fuels. 17:532-542 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef0200830 |
| Popis: | Atomic force microscopy (AFM) has been used to investigate eight different Mexican crude oils in the form of deposited films on metal substrate. Most oils had reported asphaltene deposition problems during production. Two other techniques related to hydrodynamic size determination were applied: light scattering and HPLC-SEC. According to the observed AFM surface morphology characteristics oil films were classified and grouped into distinct groups. Some had dense population of 40−200 nm particles, while others had larger discoid features and smaller particles. Light scattering analysis indicates observed particles to be organic as they disappear upon dilution with toluene. Correlation between the oil film AFM morphology and physicochemical properties of the oil did not reveal a simple relationship. Indeed, oils with similar bulk fluid properties show different morphology as films. With respect to the crude oil instability and the well-deposition problem, it was found that five of the investigated oils (un... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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