Effects of pH on rheological characteristics and stability of petroleum coke water slurry
| Autor: | Eric Hu, Fuyan Gao |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Science
020209 energy Energy Engineering and Power Technology Network structure 02 engineering and technology Petroleum coke water slurry Rheology Geochemistry and Petrology 0202 electrical engineering electronic engineering information engineering Organic chemistry Slurrying concentration Petrology Shear thinning Petroleum coke Rheological characteristics pH Chemistry QE420-499 Geology Geotechnical Engineering and Engineering Geology Geophysics Fuel Technology Chemical engineering Slurry Particle Economic Geology Industrial and production engineering Stability |
| Zdroj: | Petroleum Science, Vol 13, Iss 4, Pp 782-787 (2016) |
| ISSN: | 1995-8226 1672-5107 |
| DOI: | 10.1007/s12182-016-0118-1 |
| Popis: | In this study, the effects of pH on slurrying properties of petroleum coke water slurry (PCWS) were investigated. The slurrying concentration, rheological characteristics and stability of PCWS were studied with four different types of additives at pH varying from 5 to 11. The results showed that the slurrying concentration, rheological characteristics and stability of PCWS all increased at first and then decreased with increasing pH from 5 to 11, and a pH of around 9 was found to be the most favorable acid–alkali environment to all these three slurrying properties. It was also indicated that only in a moderate alkaline environment can the additives be active enough to react with particle surfaces sufficiently to obtain good slurrying concentration and form a stable three-dimensional network structure, which can support strong pseudoplastic characteristics and good stability. An acid environment was a very unfavorable factor to the slurrying properties of PCWS. |
| Databáze: | OpenAIRE |
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