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The coal-red combined cycle with partial gasi cation and uidized bed combustion (PGFBC-CC), also referred to as a hybrid cycle, has advantages of staged energy conversion and utilization, which can attain high thermal ef ciency with low emissions. Four kinds of PGFBC-CC are studied in this paper, two based on pressurized uidized bed combustion (PFBC) and two on atmospheric uidized bed combustion (AFBC). Thermal performance calculations and parametric analyses were performed. On the basis of the results from the above analyses, the best integration system for China is suggested. In addition, a preliminary exergetic analysis is carried out for three of the PGFBC-CC variants.

Many of the advanced coal-based power generation technologies currently under development involve the pressurized handling and storage of feedstocks and residue. The handling of fine coal at atmospheric pressure has always presented problems associated with the risk of explosion. These problems are exacerbated at higher pressures. This paper presents the results of investigations to characterize explosions at pressure, to investigate preventative measures and to evaluate the potential for explosion suppression.

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