Abstract
This article presents an extensive review of the coal-agglomeration process, including oil-agglomeration theory, characterization methods of coal hydrophobicity, and the main factors affecting the agglomeration-process performance in terms of combustible recovery and ash rejection. Coal rank and oxidation state, coal petrography and composition, coal-particle size, pulp density, and pH, bridging-liquid type and concentration, presence of surfactant and electrolytes, bridging-oil emulsification, and agitation intensity as well as time are among the factors here discussed. A chronological overview of the development and milestones of the coal-agglomeration processes is also provided.
| Original language | English |
|---|---|
| Pages (from-to) | 131-167 |
| Number of pages | 37 |
| Journal | International Journal of Coal Preparation and Utilization |
| Volume | 37 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 4 May 2017 |
Bibliographical note
Publisher Copyright:© 2017 Taylor & Francis.
Keywords
- Coal agglomeration
- coal rank
- contact angle
- hydrophobicity
- wettability