In east China, the Bohaiwan Basin is an important petroleum area. The coal-bearing series of Permian-Carboniferous is distributed extensively in the basin. The characteristics of solid "C NMR of the major maceral (cutinite and desmocollinite-B) are discussed. The chemical composition and structure is revealed and the oil-generating significance is demonstrated.
The contribution of different coal components of C-P coals in the studied region to the generation of oil-gas are evaluated through quantitative analysis. 00/60646 A development of corn uter model for simulating the transport phenomena in COR E X melter-gasifier Lee, S. C. et al. ISIJ Ink, 1999, 39, (4), 319-328.
This paper describes the development of a computer model that has the ability to consider the pyrolysis behaviour of raw coal and thus simulate the transport phenomena of the COREX melter-gasifier. This model was made up of 192 ordinary differential equations for gas and solid phases in the l-dimensional fixed bed part and balance equations for gas phase in the combustion zone and the freeboard zone of Odimensional assumption. The LSODE packages and Gibbs free energy method were used to calculate the coupled non-linear equations. The effluent gas temperature was shown to agree well with the operational data. The temperature of the gas was decreased linearly with the distance from the combustion zone. The predicted melting position of ore and flux mixture was 2.0 m high from the combustion zone. Carbon monoxide was generated mainly in the combustion zone and Hz was primarily produced during the devolatilization of coal. The fixed bed in the melter-gasifier could be divided into four distinct zones, with their own reaction characteristics.