Petroleum Science >2016,??Issue 4:??782-787 DOI: https://doi.org/10.1007/s12182-016-0118-1
Effects of pH on rheological characteristics and stabilityof petroleum coke water slurry Open?Access
文章信息
作者：Fu-Yan Gao and Eric-J. Hu
作者單位：
Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China;School of Mechanical Engineering, University of Adelaide, Adelaide, SA 5005, Australia
投稿時間：2016-02-10
引用方式：Gao, FY. & Hu, EJ. Pet. Sci. (2016) 13: 782. https://doi.org/10.1007/s12182-016-0118-1
文章摘要
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.
關鍵詞
-
Petroleum coke · Petroleum coke water slurry · pH · Slurrying concentration · Rheological characteristics · Stability