Evaluation of SDBS Surfactant on Coal Wetting Performance with Static Methods: Preliminary Laboratory Tests

Abstract

Coal dust contributes to lung diseases in coal miners. Spraying water mixed with surfactants is a method to suppress high concentration coal dust. This study presents the evaluation of the effect of SDBS surfactant on coals. Surfactant concentrations ranging from 0% to 1.0% were analyzed through the characterization of coal wettability and surfactant adsorption by using sink test, capillary penetration test, drop penetration test, surface tension test, and zeta potential test. Results show that SDBS surfactant greatly increased the coal wetting performance and the 0.02%-0.40% concentration was suggested as the optimum concentration range to improve coal wettability of coals.

Department(s)

Mining Engineering

Keywords and Phrases

Coal; Miners; Surface active agents; Tensile testing; Testing; Wetting; Characterization of coal; Coal wettability; Drop penetration; Optimum concentration; Penetration test; Surfactant adsorption; Surfactant concentrations; Wetting performance; Coal dust; Coal wettability; Sink test; Surfactant

International Standard Serial Number (ISSN)

1556-7036; 1556-7230

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Taylor & Francis, All rights reserved.

Publication Date

01 Nov 2017

Link to Full Text

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