Asphaltene Adsorption from Hydroconverted Bottoms
| Autor: | John F. Schabron, Joseph F. Rovani, Frans G. Van Den Berg, Jeramie J. Adams, Carl Mesters |
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| Rok vydání: | 2015 |
| Předmět: |
Sorbent
Chromatography Chemistry Silica gel General Chemical Engineering Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Coke 021001 nanoscience & nanotechnology Nitrogen chemistry.chemical_compound Viscosity Fuel Technology Adsorption 020401 chemical engineering Chemical engineering 0204 chemical engineering Solubility 0210 nano-technology Asphaltene |
| Zdroj: | Energy & Fuels. 30:570-583 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.5b02096 |
| Popis: | The adsorption of asphaltenes from hydroconverted bottoms (HCB) was evaluated using the Asphaltene Determinator to quantify the amount of asphaltenes removed, track the changes in the asphaltene solubility profile, and gauge the selectivity of removing the most aromatic asphaltenes as judged by the 500 nm Coke Index. Adsorption onto a variety of silica gel sorbents was investigated to determine the importance of surface area relative to pore diameter and pore volume. The adsorption behavior of HCB was compared with that of unprocessed bitumen from the Peace River area (PRFR), which contains significantly larger asphaltenes that were more sensitive to sorbent pore properties. Additionally, the optimum adsorption temperature for the unprocessed PRFR asphaltenes was much higher than that for HCB asphaltenes. Adsorption of asphaltenes from HCB improved the quality of the oil by significantly reducing its viscosity, increasing the H/C ratio, decreasing the nitrogen and total basic nitrogen, increasing the P va... |
| Databáze: | OpenAIRE |
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