Changchun desulfurization catalyst manufacturer Dongshi brand DSG special catalyst for fine desulfurization of blast furnace gas

  Blast furnace gas is one of the main by-products of the iron and steel industry
Under normal conditions, in addition to the use of blast furnace hot blast stove itself, there is a lot of surplus
If it can not be recycled, it can only be vented and discharged, resulting in energy waste and environmental pollution
In order to make full use of the surplus blast furnace gas, generally, part of it is mixed in coal-fired power boilers or for small-scale mixed boilers, and the recovery is not very large
In recent years, with the vigorous development of energy conservation and emission reduction and circular economy in steel mills and the continuous strengthening of national environmental protection policies, the previous end treatment can not meet the environmental protection requirements under the new situation
Therefore, steel mills must treat from the source
Some local environmental protection bureaus clearly put forward the clean utilization of blast furnace gas after H2S removal, and defined the treatment direction of sulfide
Under this background, we have developed a special catalyst more suitable for fine desulfurization of blast furnace gas, namely DSG special catalyst for fine desulfurization of blast furnace gas
It has the remarkable characteristics of large sulfur capacity and efficient removal of organic sulfur

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Characteristics of DSG special catalyst for fine desulfurization of blast furnace gas 1
1 High sulfur capacity, low circulation, saving investment and operation cost; The content of hydrogen sulfide in blast furnace gas is not high, but the gas is large and contains certain organic sulfur mainly carbonyl sulfur
After the application of DSG special catalyst for blast furnace gas, the sulfur capacity of desulfurization liquid is significantly improved and the desulfurization efficiency is greatly improved
Compared with other catalysts under the same working conditions, it can reduce the solution circulation by 20% - 30%, so as to reduce power consumption and save operation cost
At the same time, the sulfur separation speed is faster
Under the same working conditions, the filling amount of desulfurization tower can be reduced by 10-20%, which can effectively reduce the system resistance
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2  Strong ability to remove organic sulfur and effectively reduce the total sulfur content at the outlet; Blast furnace gas contains a certain amount of COS and other organic sulfur
The new DSG special desulfurization catalyst for blast furnace gas has higher removal capacity of organic sulfur than other catalysts, which can improve the removal capacity of organic sulfur by about 50%, and more effectively reduce the total sulfur content at the outlet
Improve the desulfurization accuracy of the whole system and greatly reduce the problem of environmental protection
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3  No corrosion and tower blockage, effectively control the content of by-salt, reduce alkali consumption and increase sulfur; The catalyst itself does not corrode, and can effectively control the content of by-salt, inhibit the by-salt and reduce the alkali consumption, eliminating part of the alkali consumption of generating by-salt
At the same time, the flotation condition of sulfur foam is improved, the effective discharge of sulfur foam is controlled, and the output of sulphur is increased obviously
At the same time, the residence time of regeneration can be appropriately reduced and the equipment investment of regeneration tank can be reduced
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4  Wide operating range, strong oil resistance, dust resistance and good temperature resistance; After the application of catalyst, the operation range of desulfurization system becomes wider, and the change of alkalinity and temperature in a certain range will not affect the formation of by-salt or desulfurization efficiency; At the same time, a small amount of ash and oil in the system will not cause poisoning failure of the catalyst, will not affect the export index of hydrogen sulfide, and the generation operation is more stable

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Application method of DSG special desulfurization catalyst for blast furnace gas 2
1 Desulfurization liquid