Changchun desulfurizer manufacturer Dongshi brand DCG special desulfurization catalyst for clean coal gasification

  For pressurized desulphurization, if the tower is packed in the form of packed columns under pressurized conditions, the gas liquid contact time will be longer, and the higher content of CO2 in the gas will make it difficult to polymerize and floatation of sulfur foam
It is difficult to control the pH value of the solution, and it is difficult to detect the effective component sodium carbonate
Most of them exist in the form of sodium bicarbonate
The problems of low sulfur capacity of desulfurization liquid, large circulation and high power consumption restrict the application of wet oxidation desulfurization technology in pressurized desulfurization and become a technical bottleneck
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
In & ldquo; Four heights & rdquo; The Dongshi brand special desulfurization catalyst for clean coal gasification developed under the requirements of conditions can inhibit the foaming in the desulfurization tower and prevent the liquid in the tower
At the same time, it can ensure sufficient flotation effect in the regeneration process and the separation of sulfur particles

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Characteristics of special desulfurization catalyst for clean coal gasification
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1 special desulfurization catalyst for clean coal gasification has good solubility in water or alkaline solution
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The desulfurization tower has the characteristics of inhibiting foaming, preventing liquid entrainment in the tower, filler blockage, increased resistance, etc
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3 in the regeneration process, the addition of a large amount of oxygen can promote the foaming performance of the catalyst and ensure the normal flotation effect of sulfur particles
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4
With the increase of catalyst concentration in the solution, the sulfur evolution selectivity increases continuously
In application, the catalyst concentration can be controlled at 30-50Mg / L
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With the increase of catalyst concentration in the solution, the sulfur capacity also increases
Under actual operating conditions, the sulfur capacity can reach more than 0
3g/l, which is more than 30% higher than that of non special catalyst
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It has good chemical stability and does not decompose in acidic or alkaline medium
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It has good thermal stability, does not decompose below 320 ℃, and can still maintain stability under the operating conditions of sulfur melting kettle
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8 the catalyst itself is non-toxic and non corrosive
It is an environment-friendly product
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9 the catalyst has stable activity, long service life and no catalyst poisoning

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Functions and characteristics of special desulfurization catalyst for clean coal gasification
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The special desulfurization catalyst for clean coal gasification is matched with the clean coal gasification desulfurization process, which is suitable for & ldquo; High pressure, high CO2, high hydrogen sulfide, high purity, & rdquo; Under the condition of high carbon dioxide, the desulfurization maintains a fast absorption rate and improves the desulfurization purification degree
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2, the desulfurization process has low side reaction, the sulfur foam flotation effect is good, the sulfur particles are separated easily and the sulfur recovery rate is high
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3 inhibit foaming in the desulfurization tower to prevent liquid entrainment caused by foaming in the tower
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This product has simple pre activation during use and is easy to use
It does not need to discharge the original desulfurization liquid to replace the catalyst, which is economical and environmentally friendly
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This product has strong activity, low consumption and low comprehensive operation cost

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Main process conditions of special desulfurization catalyst for clean coal gasification
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1 temperature of desulfurization system ≤ 50℃。 The content of Na2CO3 in the solution shall be maintained at 3-4g / L (depending on H2S before desulfurization), and the catalyst concentration shall be controlled at 20-30mg / L
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2 absorption temperature: desulfurization liquid temperature ≤ 55℃。 The temperature of desulfurization liquid is 3-5 ℃ higher than that of gas
Regeneration temperature ≤ 55℃。 3
3 liquid gas ratio: ≥ 12 L/Nm33
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Regeneration efficiency: & Ge; 85% 3
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Blowing intensity of regeneration tank: 80 & mdash; 110Nm3/m2
h
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Application method of special desulfurization catalyst for clean coal gasification
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1 desulfurization solution