Chemical characterisation of coal and coal products
The aim of this project is the application of new spectroscopic and chemical procedures to the analysis of coal. Emphasis is placed on studying the chemical environments of sulphur, nitrogen and sodium in coal, since these elements are associated with atmospheric pollution, plant fouling and corrosion problems. The origins of these elements, their metamorphosis during coalification, and their implications for coal utilisation are discussed. Temperature programmed reduction is used to study organic sulphur functionality in a rank series of coals. Variations in nitrogen functionality are studied by X-ray photoelectron spectroscopy. Sodium is studied by solid state nuclear magnetic resonance (NMR). In addition, other techniques including diffuse-reflectance Fourier-transform infrared spectroscopy, 13C and 27Al NMR spectroscopy, X-ray diffraction and thermal analysis - mass spectrometry are evaluated. These are used to investigate inorganics in coal, particularly with regard to the differences between density separated mineral matter and the corresponding low temperature (plasma) ashes.
Bibliographic Reference: EUR 11796 EN (1988) MF, 106 pp., ECU 8 blow-up copy ECU 13.75
Record Number: 198910524 / Last updated on: 1994-12-01
Original language: en
Available languages: en