Changchun desulfurization tower equipment component manufacturer Dongshi packless high efficiency mass transfer internals

  Technical background with the development of new coal chemical industry, especially the progress of clean coal gasification technology, syngas presents: & ldquo; High pressure, high CO2, high H2S, high purity & rdquo; And so on
Under the condition of high CO2 partial pressure, the CO2 of gas in synthetic gas has great influence on the components of desulphurizing liquid, the absorption and regeneration and the polymerization flotation of sulfur foam
Under high pressure, high H2S, high CO2 and high purity & ldquo; Four heights & rdquo; The desulfurization design under working conditions has special technical requirements
Taking advantage of the characteristics of rapid reaction and high selective absorption of hydrogen sulfide, efficient mass transfer technology is adopted to reduce the gas-liquid contact time in the tower during the absorption process, so as to reduce the impact of high CO2 partial pressure on the components of desulfurization liquid and complete rapid absorption; Desulfurization tower is the main equipment of desulfurization system and the main place to absorb H2S and other acid gases in gas phase
The packless mass transfer technology developed by Dongshi company is applied to syngas & ldquo; Four heights & rdquo; Good results have been achieved
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The comparative characteristics of packless mass transfer technology and constant packing technology are different from the mass transfer structure of traditional plate absorption tower (such as bubble cap, float valve, bubbling, vertical sieve plate, etc
)
It can make the liquid height on the tray up to about 1m, prolong the gas-liquid exchange time, and the function of one layer of tray is several to dozens of times that of traditional tray, making the tower structure compact, It can reduce the number of tray layers, reduce the effective height of the tower, improve the sulfur capacity and reduce the circulation
A disturbance device is set in the liquid holding layer, which can break bubbles, make large bubbles smaller, and the surface of bubbles is constantly updated, which effectively improves the mass transfer efficiency, reduces the rising speed of bubbles, increases the gas-liquid reaction time, increases the gas capacity in the liquid holding layer and reduces the amount of liquid, which can effectively reduce the static pressure of liquid and reduce the system resistance

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Design principle of packless mass transfer technology packless mass transfer technology includes gas uniform distribution device; The composition of gas-liquid turbulence device and gas-steam mass transfer device has the following characteristics: 2
1 modular design is adopted, and each tray contains a large number of micro bubble generators
These micro bubble generators are evenly distributed in a triangle on the tray without dead angle, which is more conducive to the uniform distribution of gas
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2 add gas-liquid turbulence device in the liquid holding layer to strengthen mass transfer
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3 the packless desulfurization tower uses the characteristics of high carbon dioxide partial pressure and easy foaming of carbon dioxide, and adopts proprietary technology to control the gas steam mass transfer area above the liquid level, which greatly improves the desulfurization accuracy
After the sulfur-containing gas is absorbed by the packless desulfurization tower, the H2S content in the gas can reach below 3mg / Nm3; The total sulfur can reach below 5mg / Nm3
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Advantages and characteristics of packless mass transfer technology: 1
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1 if it is used in the design of a new tower, the height of the tower will be about 1 / 3 lower than that of the packed tower when the diameter is reduced
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2 whether used for new tower design or old tower transformation, after the unit is put into operation, the sulfur capacity of desulfurization liquid shall be more than doubled, and the circulation amount of solution shall be about 50% lower than that of packed tower
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3 when the device is used in the design of a new tower, because the height of the tower is greatly reduced, the pump head is about 10m lower than the original, which greatly reduces the power consumption of the desulfurization system
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4 because of the short contact time, the influence of CO2 in desulfurization gas on desulphurizing components is effectively improved, which is more conducive to the selective absorption of hydrogen sulfide by desulfurization solution, regeneration of solution, flotation of sulfur foam and reduction of NaHCO3 generation rate
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5 if it is used for the transformation of the old tower, the production and operation flexibility of the tower will be increased by more than 30% after the unit is put into operation
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6 if it is used for new tower design, it can save 30 ~ 50% of one-time investment cost compared with packed tower
For more experience and technology of desulfurization, please pay attention to WeChat official account: east lion desulfurization technology cooperation network Changchun east lion Technology (Group) Co
, Ltd
provides mobile phone 888 desulfurization catalyst, sulfur removal catalyst, sulfur dioxide, biogas, coke oven gas desulfurization catalyst, blast furnace gas desulfurization technology, various desulfurization equipment and other contact telephone: 0431-84505111 Mobile: 15725121076