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Effect of Air Dosage in a Model Mixing System

 

作者: J. DRZYMALA,   T. D. WHEELOCK,  

 

期刊: Coal Preparation  (Taylor Available online 1997)
卷期: Volume 18, issue 1-2  

页码: 37-52

 

ISSN:0734-9343

 

年代: 1997

 

DOI:10.1080/07349349708905137

 

出版商: Taylor & Francis Group

 

关键词: Coal;oil agglomeration;air;heptane

 

数据来源: Taylor

 

摘要:

In Part 1 of this series of papers, it was shown that a definite amount of air had to be present in a laboratory mixing unit which produced a moderate shear rate in order to form compact, spherical agglomerates in an aqueous suspension of moderately hydro-phobic coal using heptane or hexadecane as an agglomerant. In this paper, the effects of different amounts of air including dissolved air are discussed. The results indicate that a small amount of air will trigger the process of agglomeration, and even the air dissolved in water under equilibrium conditions at room temperature and pressure is sufficient to promote agglomeration provided it is released from solution.

 

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