Method for treating tail gas generated by sulfur dioxide production
A sulfur dioxide and treatment method technology, which is applied in the direction of chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of high cost and large pollution, achieve the effect of great significance, low investment cost, and ensure the drying effect
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[0021] Example one:
[0022] The sulfur dioxide tail gas treated by the absorption tower is introduced into the gas-liquid separator, and the sulfur dioxide tail gas volume is 5500Nm 3 / h, the sulfur dioxide content is 700mg / Nm 3 , The pressure is 1kp, and the gas temperature is 40°C. The water content of the sulfur dioxide tail gas before separation is 15g / Nm 3 , The water content after separation is 2g / Nm 3 .
[0023] The sulfur dioxide tail gas from the gas-liquid separator enters the drying tower for drying. The drying adopts packing structured packing, and the acid distributor adopts a spray type with a spray volume of 30M 3 / h, dry acid temperature 40℃.
[0024] The dried sulfur dioxide tail gas is introduced to the mixer, and mixed with pure oxygen from the oxygen production system to form a mixed gas, so that the oxygen content is increased from 10% to 20% (additional oxygen makes the tail gas oxygen content reach the normal oxygen content standard of air);
[0025] The mix...
Example Embodiment
[0026] Embodiment two:
[0027] The sulfur dioxide tail gas treated by the absorption tower is introduced into the gas-liquid separator, and the sulfur dioxide tail gas volume is 3000Nm 3 / h, the sulfur dioxide content is 346mg / Nm 3 , Pressure 0.6kp, gas temperature 40℃. Water content of sulfur dioxide tail gas before separation is 13g / Nm 3 , The water content after separation is 2g / Nm 3 .
[0028] The sulfur dioxide tail gas from the gas-liquid separator enters the drying tower for drying. The drying adopts packing structured packing, and the acid distributor adopts a spray type with a spray volume of 30M 3 / h, dry acid temperature 40℃.
[0029] The dried sulfur dioxide tail gas is introduced to the mixer, and mixed with pure oxygen from the oxygen production system to form a mixed gas, so that the oxygen content is increased from 10% to 20% (additional oxygen makes the tail gas oxygen content reach the normal oxygen content standard of air);
[0030] The mixed gas is sent to the ...
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