文献类型：期刊文献

英文题名：Influence of sewage sludge on the slurryability of coal-water slurry

作者：Li, Weidong[1];Li, Weifeng[1];Liu, Haifeng[1];Yu, Zunhong[1]

机构：[1]E China Univ Sci & Technol, Key Lab Coal Gasificat, Educ Minist China, Shanghai 200237, Peoples R China

年份：2009

卷号：88

期号：11

起止页码：2241

外文期刊名：FUEL

收录：;EI(收录号：20093112230191);WOS:【SCI-EXPANDED(收录号:WOS:000268914900024)】；

基金：This work is supported by National Natural Science Foundation of China (Grant No. 50776033), Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT-IRT 0620) and National Key Program of Basic Research in China (CN2004CB217700). The author also thanks the editor and the reviewers for helpful advises.

语种：英文

外文关键词：Sewage sludge; Coal-sludge slurry; Stability; Rheological; Co-gasification

摘要：In this study, the maximum solids loading, stability and theological properties of coal-sludge slurries were investigated and compared with those of coal-water slurries. The maximum solids content of coal-sludge slurry was much lower than that of coal-water slurry because of the similar to 82% water in sewage sludge. NaOH addition as a pre-treatment of sewage sludge improved the maximum solids content to 61% and 60% for dispersants A(1) and A(2), respectively, for a sludge-coal mass ratio of 22.1:100. Compared to coal-water slurries, the stability of coal-sludge slurries was better, with no solid deposition after 96 h. Coal particles and sewage sludge formed a stable medium and settlement of large coal particles was prevented. All the coal-sludge slurries exhibited pseudo-plastic behavior; this type of fluid is shear-thinning and is easy to transport. (C) 2009 Elsevier Ltd. All rights reserved.