The problem of water supply from deaerator to carbon washing tower
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Let me ask you a question: How much water does the deaerator supply to a single carbon scrubber? Is there a certain range? About 200 tons? Let’s talk, thank you.
Furnaces of different sizes, furnaces with different loads, and furnaces with different pressure levels have different amounts of gray water.
This is actually a question of mass balance and heat balance. Depends on the concentration of black water and the temperature of the raw syngas.
The deaerator supplies deoxygenated water to the carbon washing tower. According to the actual situation, it must meet the process needs, such as temperature, liquid level, etc.
The water inlet volume of the carbon washing tower for a furnace with a larger load of about 60 cubic meters is 85 to 120 cubic meters.
My calculation is similar to what you said. I think each set of equipment is different, but someone insisted on telling me that it is above 200t. I don’t know which one is correct.
A single furnace with a production capacity of 300,000 yuan feeds approximately 200t/h of gray water to the carbon scrubber.
Agree with the person above. A single furnace with a production capacity of 300,000 yuan enters the carbon washing tower at about 200t/h. Ours is 244m3/h, and the density is 0.8g/cm3.； In addition, the high-temperature conversion condensate volume is approximately 80m3/h. In addition to the water volume cooled by the process gas, the quench water volume is 400m3/h, and the black water discharge volume of the carbon washing tower is 27m3/h. Basically ensure material balance and stable liquid level in the carbon washing tower.
A question arises from the amount of gray water required for the carbon scrubber tower: If the deaeration water pump (high-pressure gray water pump) fails and stops, how long will it take to start the backup pump on site?
Reply to the 10th floor, if this happens, the pump should be turned on within 5 minutes. If it's late, just wait for parking. hehe
150,000 tons of water replenishment requires about 70 tons
The water in the carbon washing tower is mainly supplied by high-pressure gray water. The high-pressure gray water is responsible for the liquid level of the carbon washing tower and the water flow rate of the carbon washing tower. As long as the high-pressure gray water can be guaranteed, there is no need to add too much deoxygenated water. Adding too much deoxygenated water will increase the amount of water in the system, increase emissions, and increase the burden of sewage treatment. Deoxygenated water is mainly used to wash dust in water gas. If the dust in the gas is large, the amount of deoxygenated water must be increased. Otherwise, the dust brought into the conversion and desulfurization sections will affect the production of the subsequent sections (the latter section cannot be guaranteed, and you will cry in the later stages of catalyst production). If the ash content in coal is low, some deoxygenated water can be reduced accordingly. This reduces fresh water and steam consumption. Reduce costs! (It’s a big expense! )