Xiaobian introduces the types and characteristics of commonly used desulfurizers in the desulfurization process, but is it enough to know these? Of course not, there will be more or less problems in the desulfurization process, so we implore desulfurization personnel to fully understand some matters needing attention in the desulfurization process before implementing desulfurization, so as to avoid problems.
(1) When entering and leaving the crude desulfurization system, the gas dust and tar should be less, and the gas should be purified. Usually more commonly used is to add electrostatic precipitator at the inlet and outlet of the wet desulfurization system to stop the collection of dust and tar in the gas and purify the gas, so as to reduce the influence of impurities on the pressurized fan and desulfurization solution system.
(2) in order to stabilize the components of desulphurizing liquid and reduce the content of secondary salt, the sulfur foam should be stopped before mechanical treatment and then intermittent sulphur melting, so as to reduce the heating up of desulphurizing liquid as far as possible.
In most of the manufacturers, the degaging system of the majority of the plants is deactivated, and the desulfurizing liquid will directly enter the radiator by its own pressure. This plan will not present great problems in the work, but the quality of the desulfurizing liquid and the formation of sulfur foam are not very good. In the planning of the disconnecting system, we should think about adding rich liquid tanks, lowering the desulfurizing solution to atmospheric pressure, and then pump it to the regeneration tank, releasing a lot of CO2 gas on the one hand. On the other hand, it ensures the satisfactory residence time of the desulfurizing liquid in the system, and is easy to form a thick sulfur foam layer.
There are many kinds of desulfurization technologies, and the points that need to be paid attention to in the implementation process of each desulfurization technology are also different, so we implore everyone to do enough homework before the implementation of desulfurization to avoid unexpected attacks.
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2021-06-23
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