Why must the pressure be 1.0 MPa when feeding material into the pulverized coal gasifier?
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Why must the pressure be 1.0 MPa when feeding material into the pulverized coal gasifier? Why can’t feeding be done at atmospheric pressure? Also, how is the feeding load determined, and are there any disadvantages to using high or low levels?
Do you mean gasification of pulverized coal using a space furnace or Shell’s technology? Then I’ll tell you the answer
If feeding is carried out at atmospheric pressure, the high pressure difference between the pulverized coal feed tank and the gasifier results in a high flow rate and longer flames, posing a risk of damaging the water-cooled walls.
Shell: The existing quench compressors can start at atmospheric pressure, but the volume of quenching air is insufficient to maintain the cooling effect after the coal burners are activated. Feeding is carried out at atmospheric pressure, and the entire gasification system is not subjected to the thermal load from the start-up burner, which is detrimental to the system equipment. When the feed load is high, the thermal load on the equipment increases suddenly, which is detrimental to the equipment; the feeding should be done smoothly and gradually. Feeding is done at atmospheric pressure. As mentioned above, there’s also an issue with the coal supply line – sometimes, even without the burner being in use, it can stop working; P;P;P
What are the differences between space furnaces and Shell furnaces? Please explain each one separately
I just finished training in the aerospace field today; I’ll ask you specifically about it tomorrow
Their explanation is that when the pressure increases, the furnace temperature can rise more quickly, and the feeding rate can also be increased
In the data after the coal powder cycle is completed, how is that correction factor determined? Could you explain it in detail? Thank you.
I’m asking you today to see what’s going on
Look at the vaporization pressure. The pressures must be equal before the material can be fed in
For aerospace applications, it’s advisable to consult manufacturers of coal powder flow meters, as factors such as moisture content need to be taken into consideration