TITLE: Novel Analytical Approaches to Coal Beneficiation. Final Report.

AUTHOR: P. R. Griffiths.

INST.  AUTHOR: California Univ., Riverside.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  Mar 86,  98p.

NTIS ORDER NO.:  DE86011951/INW

ABSTRACT:

This grant involved an exploration of the use of diffuse reflectance (DR) Fourier transform infrared (FT-ir) spectrometry for the elucidation of the structure of coal and the processes occurring during air oxidation of coals. An investigation of the nature of intermediates on the surface of catalysts during Fischer-Tropsch synthesis was also initiated. Several achievements resulted, which can be summarized as follows: (1) A better fundamental understanding of the phenomenon of DR infrared spectrometry when the matrix exhibited significant absorption was obtained. (2) Methods of enhancing the information content of DR/FT-ir spectra of coals through the use of Fourier self-deconvolution were developed. (3) Improved quantitation of functional groups in coals was obtained by curve-fitting regions of spectra which has previously been subjected to deconvolution.  These techniques were extensively checked using synthetic spectra. (4) A detailed study of the nature of CO adsorbed on supported rhodium catalysts was made. (5) A preliminary investigation into the effect of adding hydrogen to the above system was initiated. Each of these studies has led to at least one published paper or manuscript submitted for publication.  This final report consists of five sections, each of which describes one phase of the investigation. 52 refs., 40 figs., 4 tabs. (ERA citation 11:039492)

REPORT  NUMBER: DOE/PC/50797-T12

CONTRACT  NUMBER: FG22-82PC50797