Catalyst and preparation method, flue gas CO removal-whitening system and method

Abstract

The invention provides a catalyst and its preparation method, and a flue gas CO removal-whitening system and method. The system includes a mist eliminator, a dehumidification wheel, a gas intelligent detection module, a diversion module, a heating module, a catalytic oxidation module, A flue gas return module; the demister is arranged at the flue gas inlet, and on the flue of the dust collector, a dehumidification wheel, a diversion module, a flue gas heating module, a catalytic oxidation module, and a flue gas return module are arranged in sequence. The system is located after wet desulfurization, dry denitrification or semi-dry desulfurization and before the chimney. The flue gas treatment process is not changed, the degree of renovation is small, the applicability of space is strong, and the energy consumption is low during operation, and it can be used independently. The efficient removal of CO and the whitening of flue gas are completed, and the operating cost is low. The system is installed with CO, CO 2 The concentration sensor can intelligently evaluate whether the catalytic oxidation module is working normally, and at the same time evaluate the flue gas temperature in the system to ensure the whitening effect.

Description

technical field [0001] The invention relates to the field of flue gas CO removal, in particular to a catalyst and a preparation method, and a flue gas CO removal-whitening system and method. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Since the industrial revolution, metallurgy, steelmaking, and other industries have developed rapidly, satisfying the growth of the world economy and increasing environmental pollution. Heavy industrial enterprises will produce a large amount of pollutants while consuming a large amount of fossil energy, such as the ore used in metallurgy Most of the raw materials contain sulfur, and a large amount of SO will be produced during the smelt...

AI Technical Summary

Problems solved by technology

[0004] Before the flue gas is discharged, it usually goes through a series of purification procedures, such as desulfurization, denitrification, etc., but there is still a considerable amount of CO at the end of the flue gas. If the CO is directly discharged into the atmosphere without treatment, it will not only pollute the environment, It's also a waste of energy

At the same time, the current flue gas discharge temperature is high, which not only causes a lot of waste of heat energy, but also contains a large amount of water vapor in the flue gas, which will form white feathers when it is directly discharged at low altitude, which not only seriously affects the nearby residential residents, but also causes another cause of smog (forms aerosol)

At present, flue gas whitening is a relatively novel treatment process for large-scale concentrated industrial flue gas treatment, but the existing flue gas treatment has a low treatment efficiency for flue gas whitening, and flue gas dewatering and whitening The effect is often not good, and most of the prior art is to improve one of the above-mentioned problems, lacking a related whole system

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