Surface Area of Coal as Influenced by Low Temperature Oxidation Processes

Surface Area of Coal as Influenced by Low Temperature Oxidation Processes
Author:
Publisher:
Total Pages: 57
Release: 1980
Genre: Coal
ISBN:

The possibility of increasing the amount of readily accessible surface area by enlarging the 5 A pore was examined via pretreating the PSOC-371 coal with gases such as nitrogen, nitrogen-oxygen, and ozone-oxygen and hydrogen peroxide solutions. Surface areas were obtained from nitrogen adsorption at 77 K and carbon dioxide adsorption at either 298 or 195 K for each sample before and after treatment.

Characterization of Coal Surfaces by Ion Microscopy, Phase 2

Characterization of Coal Surfaces by Ion Microscopy, Phase 2
Author:
Publisher:
Total Pages: 47
Release: 1985
Genre:
ISBN:

A method for the low temperature oxidation of microscopicstructures within coal surfaces has been developed using isotopicoxygen (18-O2) as a tracer, and Secondary Ion Mass Spectrometry(SIMS) as a surface analysis technique. The uptake of oxygen incoal has been studied as a function of maceral type, coal rank,oxidation time and temperature.