Catalytic flue gas desulfurization and dust removal
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It is imperative to launch catalytic flue gas desulfurization, denitration, and dust removal projects. Today I would like to ask a question: before catalytic flue gas desulfurization, how common are the use of bag filters for treating flue gas? After installing bag filters, if the original chimney is removed. If there is a situation of agent leakage in the regenerator during operation. Is the risk very high?
I haven’t heard of it being effective with cloth bags; we use water jets in our venturi tubes
Whose patent is the bag filter? Study*
Before catalytic flue gas desulfurization, a cyclone dust collector was used
Is the water jet in the venturi tube used to ensure the quality of the external drainage? What controls COD?
Spraying water is used to wash away solid particles in the flue gas; generally, water spraying is combined with flue gas desulfurization. The quality of the water, as well as parameters such as COD and pH, must be improved through wastewater treatment
If the running dose is not high, there is no impact; the pulse design of the bag filter is such that it exceeds the pressure of the flue gas, and the catalyst will eventually end up in the desulfurization ash storage
For dust removal from catalytic cracking flue gas, bag filters are not yet in use; there are two units that employ dry electrostatic dust removal. In most cases, dust removal is achieved simultaneously during the wet desulfurization process, but this introduces many complications in terms of handling the wet catalyst powder.
At present, the wet desulfurization method is primarily used; pH can be controlled, but COD cannot be controlled. Nor can nitrogen oxides and dust concentration be effectively controlled
This post was last edited by Refiner on 2018-12-3 07:45. COD can also be controlled through the alkali aeration method.