1991 International Conference on Coal Science Proceedings. by Yong Zhou

By Yong Zhou

1991 overseas convention on Coal technology complaints

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ACS Div. , 1988, 33(2), 333 and 33(3), 7. , Malhotra, V. ACS Div. , 1991, 36(1) , 108. , Energy and Fuels, 1990, 4, 448. Allardice, DJ. , Fuel, 1971, 50, 201. C. ACS Div. , 1988, 33(1), 387. , Fuel, 1986, 65, 647. Janikowski, S. K. , Fuel, 1989, 68, 95. M. , manuscript submitted for review to Fuel, 1990. Κ. , Fuel, 1986, 65, 298. M. Fuel, 1989,12, 1609. £ S a © is 40 50 60 70 80 Relative Humidity [P/P 0 ] Figure 1. Rate of drying of Beulah lignite at 303 K, as a function of relative humidity. Each point represents an average rate for drying a samplefromthe next higher relative humidity.

J. Lynch and O. Ito CSIRO Division of Coal and Energy Technology PO Box 136, North Ryde 2113, Australia 1. INTRODUCTION The vitrinite macérais of bituminous coals are a group of aromatic-rich organic solids whose properties are often ranked against 'fundamental' parameters such as elemental carbon content and reflectance. However, a full understanding of these materials requires knowledge of their molecular structure. The important aspects of molecular structure and its stability concern the size distribution of the aromatic molecular units (ring condensation index) and the absolute and relative extent of covalent linkages and electrostatic and electrodynamic interactions between these units.

Shibaoka, D. Phong-anant*, E. E. Gosnell CSIRO Division of Coal & Energy Technology, PO Box 136 North Ryde, NSW 2113, Australia * Australian Coal Industry Research Laboratories Ltd, PO Box 242 Booval, Qld 4304, Australia 1. e. is reactive) can be above 70%. Because of the microscopic size and distribution of macérais, a microscopic method has been developed to measure the fusibility of a particular macérai particle. This paper describes a study where the inertinite macérais in six coals were evaluated using a laser microreactor technique to determine whether they fused under the conditions which simulate the initial stages of pulverised fuel (pf) combustion.

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