Gasification, coal molten bath

In molten bath processes, crushed coal is passed with reacting gases into the liquid bath, where gasification occurs. The ash can become part of the liquid bath or can be separated. The media include liquid iron and liquid sodium carbonate. 

Recently, some novel gasification processes have also been developed, including in situ gasification of coal in the underground seam as well as molten bath processes. The different gasification processes are described in the following sections. 

Molten salt processes, as the name implies, use a molten medium of an inorganic salt to generate the heat to decompose the coal into products and there are a number of applications of the molten bath gasification. 

Kloeckner/CRA Process (29). The Kloeckner/CRA molten-iron bath coal gasification process was originally very similar to the KHD process. However, developers have modified it for use in a new iron making process called HIselt being developed by CRA and Midrex. A large pilot plant is under construction in western Australia. It is likely that this process could produce excess coal-derived fuel gas like the COREX process. 

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