期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 49, 期 6, 页码 3015-3021出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie901770d
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资金
- CSIR (Council of Scientific and Industrial Research), New Delhi
- National Research Foundation (NRF) of South Africa
In this paper, rheological characteristics of coal-water slurries (CWS) by using microwave Pretreatment have been presented. Detailed experimental investigations were carried out for two high ash Indian coals with 38 and 32% ash content. Experiments were conducted at the 900 W power level and various exposure times of 30, 60, 90, and 120 s. Before and after treatment, the samples were ground for theological characteristic of CWS in ail online Bohlin viscometer. All slurries were found to exhibit pseudoplastic characteristics and results indicate that the rheological properties of microwave-treated coal are better than untreated coal. The density of microwave-treated coal is less than that of untreated coal after grinding. A factorial plan was used, and empirical equations were obtained and found to be encouraging and highly significant.
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