Evaluation of sulphonated acetone-formaldehyde (SAF) used in coal water slurries prepared from different coals

被引：72

作者：

Qiu, Xueqing ^{[1
]}

Zhou, Mingsong ^{[1
]}

Yang, Dongjie ^{[1
]}

Lou, Hongming ^{[1
]}

Ouyang, Xinping ^{[1
]}

Pang, Yuxia ^{[1
]}

机构：

[1] S China Univ Technol, Sch Chem & Energy Engn, Guangdong Prov Lab Green Chem Technol, Guangzhou 510640, Peoples R China

来源：

FUEL | 2007年 / 86卷 / 10-11期

关键词：

sulphonated acetone-formaldehyde; coal water slurry; viscosity-reducing capacity;

D O I：

10.1016/j.fuel.2006.11.035

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A new type of water-soluble polymer, sulphonated acetone-formaldehyde resin (SAF), was developed as dispersant for the preparation of highly-loaded coal water slurry (CWS). In this study, in order to evaluate the practical use in industry, the SAF and a naphthalene sulfonate formaldehyde condensate are used to prepare CWS using four Chinese coals with different coalification degrees. The evaluation of the properties of CWS shows that SAF has better ability in reducing CWS viscosity at lower dosage than naphthalene sulfonate formaldehyde condensate, and that the CWS prepared from SAF has excellent stability within 48 h and exhibits shear-thinning apparent viscosity/shear rate behavior at lower dosage. Based on the results, the SAF is an effective and promising dispersant for highly-loaded CWS. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1439 / 1445

页数：7

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