Enhanced Oxidative Reactivity for Anthracite Coal via a Reactive Ball Milling Pretreatment Step

Abstract

Reactive ball milling in a cyclohexene solvent significantly increases the oxidative reactivity of an anthracite coal, due to the combined effects of particle size reduction, metal introduction, introduction of volatile matter, and changes in carbon structure. Metals introduced during milling can be easily removed via a subsequent demineralization process, and the increased reactivity is retained. Solvent addition alters the morphological changes that occur during pyrolysis and leads to a char with significantly increased reactivity. When the solvent is omitted, similar effects are seen for the milled product, but a significant fraction of the char is resistant to oxidation.

Department(s)

Chemical and Biochemical Engineering

Sponsor(s)

Consortium for Premium Carbon Products from Coal
Pennsylvania State University. Energy Institute
Pennsylvania State University. Material Research Institute

Comments

The work was funded by the Consortium for Premium Carbon Products from Coal (DEFC2603NT41874, Internal Agreement No. 2875- TPSU-DOE-1874), with partial support from PSU's Energy Institute and Material Research Institute.

Keywords and Phrases

Anthracite coal; Carbon structures; Combined effect; Cyclohexenes; Morphological changes; Oxidative reactivity; Particle size reduction; Pre-Treatment; Reactive ball milling; Volatile matters; Anthracite; Milling (machining); Milling machines; Olefins; Solvents; Ball milling

International Standard Serial Number (ISSN)

0887-0624

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Aug 2009

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