| 摘要 |
A method and an apparatus for removing hydrogen sulfide from blast furnace slag are provided to reduce the exhaust concentration of the hydrogen sulfide, by removing hydrogen sulfide generated while cooling the blast furnace slag using ethanol amines and polyamines. Hydrogen sulfide is firstly removed from a blast furnace slag solution through ethanol amines of monoethanolamine, diethanolamine, triethanolamine, and diethylenetriamine. The hydrogen sulfide remaining unremoved is secondarily removed from the blast furnace slag solution through spray of an amine solution. The amine solution is sprayed by a spray nozzle, which is installed on an exhaust gas passage within a stirring bath.
|
