To remote the contaminant halides from a combustible gas in a combined gasification/generation system using a dry gas purification equipment.
In a gasifier 1, a feed coal 8 is brought into contact with a gasifying agent (e.g. air) to produce a combustible gas, and the gas is discharged into a gas cooler 12. In the cooler 2, the combustible gas is cooled to recover its heat and is discharged into a downstream deduster 5. In the deduster 5, unburnt char is removed from the combustible gas and is discharged into a desulfuriser 6. In the desulfurizer 6, the contained sulfur is removed from the combustible gas, and the combustible gas is discharged into a halogen getter 14. The getter 14 contains only an adsorbent for halides and is adapted so that the introduced gas may be brought into contact therewith. The combustible gas stripped of the halides is discharged into a gas turbine and is used as a fuel for the generation of electricity.
KOMORI TOYOAKI
FURUYA TAKAAKI
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