Thermal Characteristics and Combustion Kinetics Analysis of Heavy Crude Oil Catalyzed by Metallic Additives
| Autor: | Peng-Gang Liu, Zhe-Zhi Liu, Yi-Bo Li, Fayang Jin, Wanfen Pu |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Thermogravimetric analysis
Materials science General Chemical Engineering General Chemistry Activation energy Industrial and Manufacturing Engineering Catalysis Metal Chemical engineering visual_art Specific surface area visual_art.visual_art_medium Organic chemistry Deposition (phase transition) Secondary air injection Asphaltene |
| Zdroj: | Industrial & Engineering Chemistry Research. 54:11525-11533 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.5b02937 |
| Popis: | This work reports the investigation of the catalytic effect of metallic additives on heavy oil oxidation during the air injection process through thermogravimetric testing. The results indicate that the crude oil and oil mixed with metallic additives, combusted in an air atmosphere, exhibit three different types of reactions defined as low-temperature oxidation (LTO), fuel deposition (FD), and high-temperature oxidation (HTO). Because of differences in individual catalytic activity and specific surface area effects, metallic additives exhibit varied catalytic effects on heavy oil oxidation. Meanwhile, the difference of activation energy reduction between LTO and HTO is analyzed in depth to present new insights into the catalytic effect of metallic additives on asphaltene and mechanistic understanding in terms of microscopic molecular structure. Through the combined analysis of thermal behavior and combustion kinetics, CuCl2 is found to be an excellent catalyst for upgrading the performance of an air injec... |
| Databáze: | OpenAIRE |
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