Combination of Negative Electrospray Ionization and Positive Atmospheric Pressure Photoionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry as a Quantitative Approach of Acid Species in Crude Oils
| Autor: | Fernando A. Rojas-Ruiz, Andrea Gómez-Escudero, Jorge A. Orrego-Ruiz |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Acid value
Chromatography Atmospheric pressure Chemistry General Chemical Engineering Electrospray ionization Oil refinery Analytical chemistry Energy Engineering and Power Technology 02 engineering and technology Photoionization 021001 nanoscience & nanotechnology Mass spectrometry Fourier transform ion cyclotron resonance Fuel Technology 020401 chemical engineering Statistical analysis 0204 chemical engineering 0210 nano-technology |
| Zdroj: | Energy & Fuels. 30:8209-8215 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.6b01524 |
| Popis: | Crude oils differ from one another in numerous chemical and physical properties, many of which play an important role in defining their quality and price. Generally, statistical analysis of price differentials has focused on two main properties: density and sulfur content. However, the growing significance of high total acid number (TAN) crude oils, especially from developing countries, has aroused the necessity for extending these models. Consequently, refineries must obtain real and exact information regarding crude oil quality to achieve optimal crude oil selection and processing decisions. This could be attained when a detailed molecular-level characterization is performed. The present work presents the combination of negative electrospray ionization [(−)ESI] and positive atmospheric pressure photoionization [(+)APPI] Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry, as a prominent approach to semi-quantify the acid species comprised in crude oils. A novel polarity index is propose... |
| Databáze: | OpenAIRE |
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