Ultrasonic Coal-Wash for De-Ashing and De-Sulfurization: Experimental Investigation and Mechanistic Modeling

ISBN-13: 9783642250163 / Angielski / Twarda / 2012 / 126 str.

B. Ambedkar

Opis

Focusing on the physical aspects of ultrasonic de-ashing and de-sulfurization, such as cavitation, streaming and their combined effects, this thesis proposes an ultrasound-assisted coal particle breakage mechanism using aqueous and solvent-based techniques.

Spis treści

Literature review.- Assessment of fly-ash erosion potential of indian coals.- Experimental studies on ultrasonic coal beneficiation.- Experimental studies and mechanistic modeling of reagent-based ultrasonic coal de-sulfurization.- Assessment of benefits from ultrasonic coal-wash (uscw).- Summary, conclusions and recommendations.

Blurb

This study focuses on the physical aspects of ultrasonic de-ashing and de-sulfurization, such as cavitation, streaming and their combined effects. Ambedkar Balraj proposes an ultrasound-assisted coal particle breakage mechanism and explores aqueous and solvent-based ultrasonic techniques for de-ashing and de-sulfurization. Ambedkar designs a Taguchi L-27 fractional-factorial matrix to assess the individual effects of key process variables. In this volume he also describes process optimization and scale-up strategies. The author provides a mechanism-based model for ultrasonic reagent-based coal de-sulfurization, proposes a flow diagram for ultrasonic methods of high-throughput coal-wash and discusses the benefits of ultrasonic coal-wash. Coal will continue to be a major fuel source for the foreseeable future and this study helps improve its use by minimising ash and sulfur impurities.