Coal gasification for electric utilities

The article investigates approaches, problems and applications involved in coal gasification processes. It is suggested that coal should be gasified for generating electricity, rather than burned directly, with the resulting air pollution. Three different approaches are presented: the fixed bed gasifier and its derivative the slagging gasifier, the fluidized bed gasifier, and the entrained gasification system. Other topics covered are slurry handling and products of gasification. Separate sections explain gasification chemistry and integrating gasification and generation.