Method of retaining sulfur in ash during coal combustion

Details Method of retaining sulfur in ash during coal combustion Method of retaining sulfur in ash during coal combustion

F - Mech Eng,Light,Heat,Weapons

23

C

110/15

F23C 1/00 (2006.01)

Patent

CA 2036642

An improved method for burning carbonaceous material containing sulfur to reduce emissions of SO2 is disclosed wherein the carbonaceous material is continuously ignited with a volatile fuel such as natural gas, oil, liquified petroleum gas or naptha supplied through at least one separate burner and directed into the carbonaceous material as it enters the furnace so as to cause the material to be enveloped in a reducing atmosphere. Then, sulfur is retained within the ash slag in its reduced or sulfide form at a region where it enters a furnace.

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