Catalytic agent for removing sulfur and nitrate, catalytic agent device, and preparation, activation and regeneration methods of catalytic agent

Abstract

The invention relates to a catalyst for removing sulfur and nitrate, which comprises raw materials including, on the basis of 100 wt%, 40-60 wt% of manganese acetate, 20-30 wt% of ferric nitrate and 20-30 wt% of oxalic acid; wherein the catalyst for removing sulfur and nitrate can remove sulfur dioxide and nitrogen oxide in waste gas with good efficiency in an environment with the temperature of 250 DEG C or below and containing water vapor. In addition, the invention also provides a preparation method, an activation method and a regeneration method of the catalyst for removing sulfur and nitrate, and a device containing the catalyst for removing sulfur and nitrate. According to the present invention, the catalyst for removing sulfur and nitrate can be prepared by the preparation method, wherein the exhaust gas can be treated by the catalyst device; the desulfurization / denitration efficiency of the catalyst can be easily recovered by the activation method and the regeneration method along with the increase of the use time.

Description

technical field [0001] The invention relates to a catalyst, a device containing the catalyst, and a method for preparing and treating the catalyst, in particular to a catalyst for desulfurization and nitration, a catalyst device, and methods for preparing, activating, and regenerating the catalyst. Background technique [0002] Boilers in factories will produce exhaust gas with a temperature as high as 200°C to 1400°C after combustion. In order to properly utilize the heat energy in the exhaust gas, heat recovery is often performed on the exhaust gas, and the recovered heat energy is used for power generation. After heat recovery, the temperature of the exhaust gas will usually drop below 200°C, and the dust, sulfur dioxide, and nitrogen oxides must be removed before it can be discharged to avoid environmental and air pollution. Generally speaking, currently, limestone and alkaline agents are mostly used to remove sulfur dioxide in waste gas (namely, lime method). The disadv...

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Problems solved by technology

However, the existing method will increase the maintenance cost and additional energy consumption, and it is more likely that the desulfurization and denitrification equipment will be easily damaged due to high temperature, so it is necessary to improve it

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