Method for reducing concentration of carbonyl sulfide on outlet of hydrogen sulfide (H2S) desulfurizer
A technology of desulfurization agent and hydrogen sulfide, applied in chemical instruments and methods, separation methods, separation of dispersed particles, etc., to achieve high H2S removal rate, considerable economic and social benefits
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Embodiment approach 1
[0031] Take by weighing about 112g of basic zinc carbonate, add 13g of potassium carbonate in basic zinc carbonate and mix evenly, then add about 9.5g of pseudo-boehmite in basic zinc carbonate and potassium carbonate mixture, and finally add about 3.75g of carboxymethyl cellulose and 0.25g of graphite mixture, mix all raw materials, add deionized water, knead and extrude at room temperature to obtain particles with a size of φ2~3mm×3~5mm, and place at room temperature for 24 hours Finally, dry at 120°C for 4 hours, and then bake the dried sample at 550°C for 4 hours to obtain a medium temperature zinc oxide desulfurizer. The desulfurizer is used at a temperature of 300°C and a space velocity of 2000h -1 , Import gas composition: 30Vol.% CO, 20Vol.% CO 2 , 40Vol.%H 2 , 1Vol.%H 2 O, N 2 balance, import H 2 S concentration is less than 300mgS / m 3 Under the condition, the measured exit H 2 S concentration and outlet COS concentration are both less than 0.1mgS / m 3 At this ...
Embodiment approach 2
[0033] Take by weighing about 119g of basic zinc carbonate, add 10g of potassium carbonate in basic zinc carbonate and mix evenly, then add about 7g of pseudo-boehmite in basic zinc carbonate and potassium carbonate mixture, and finally add 5.4 g of carboxymethyl cellulose and 0.36g of graphite mixture, mix all raw materials, add deionized water, knead and extrude at room temperature to obtain particles with a size of φ2~3mm×3~5mm, after standing at room temperature for 24 hours , dried at 120°C for 4 hours, and the dried sample was roasted at 550°C for 4 hours to obtain a medium temperature zinc oxide desulfurizer. The desulfurizer is used at a temperature of 300°C and a space velocity of 2000h -1 , Import gas composition: 30Vol.% CO, 20Vol.% CO 2 , 40Vol.%H 2 , 1Vol.%H 2 O, N 2 balance, import H 2 S concentration is less than 300mgS / m 3 , the measured outlet H 2 S concentration and outlet COS concentration are both less than 0.1mgS / m 3 At this time, the breakthrough ...
Embodiment approach 3
[0035] Take by weighing about 126g of basic zinc carbonate, add 7g of potassium carbonate in basic zinc carbonate and mix evenly, then add about 4g of pseudo-boehmite in basic zinc carbonate and potassium carbonate mixture, and finally add 7.5 g of carboxymethyl cellulose and 0.5 g of graphite mixture, mix all the raw materials, add deionized water, knead and extrude at room temperature to obtain particles with a size of φ2~3mm×3~5mm, after standing at room temperature for 24 hours , dried at 120°C for 4 hours, and the dried sample was roasted at 550°C for 4 hours to obtain a medium temperature zinc oxide desulfurizer. The temperature of the desulfurizer is 300°C, and the inlet gas composition: 30Vol.%CO, 20Vol.%CO 2 , 40Vol.%H 2 , 1Vol.%H 2 O, N 2 balance, import H 2 S concentration is less than 300mgS / m 3 , the measured outlet H 2 S concentration and outlet COS concentration are both less than 0.1mgS / m 3 At this time, the breakthrough sulfur capacity of the desulfuriz...
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