Method and apparatus for removing mercury from waste gas
OwnerShintaro Honjo, Toru Takashina +4inventors
InventorsShintaro Honjo, Toru Takashina, Kozo Iida, Tetsuya Imai, Koichiro Iwashita, Tatsuto Nagayasu
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Abstract
An apparatus for removing mercury from a waste gas comprises a catalytic oxidizing apparatus in which the metal mercury in a combustion waste gas containing SOx and mercury is oxidized into mercury chloride under the reaction temperature not higher than 300° C. in the presence of a solid catalyst, a wet desulfurizing apparatus for removing mercury by using an alkaline absorbing solution, and a temperature control apparatus for controlling the reaction temperature in oxidizing the metal mercury into mercury chloride.
Claims17
A method of removing mercury from a combustion waste gas containing SOx and mercury by using an apparatus for removing mercury including a catalytic oxidizing apparatus in which the metal mercury is oxidized into mercury chloride in the presence of a solid catalyst, a wet desulfurizing apparatus for removing mercury by using an alkaline absorbing solution, and a temperature control apparatus for controlling the reaction temperature in oxidizing the metal mercury into mercury chloride, comprising oxidizing the metal mercury into mercury chloride under the reaction temperature not higher than 300° C. in the presence of a solid catalyst, and removing mercury by using an alkaline absorbing solution.
An apparatus for removing mercury from a waste gas, comprising a catalytic oxidizing apparatus in which the metal mercury in a combustion waste gas containing SOx and mercury is oxidized into mercury chloride under the reaction temperature not higher than 300° C. in the presence of a solid catalyst, a wet desulfurizing apparatus for removing mercury by using an alkaline absorbing solution, and a temperature control apparatus for controlling the reaction temperature in oxidizing the metal mercury into mercury chloride.
Dependencies are inferred from the claim text.