Fluctuations in syngas flow rate in the gasifier
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Dear experts, I have a question: when the liquid levels in the vaporization furnace and the scrubber tower are stable, and the amount of black waste discharged remains relatively constant. The output volume of synthetic gas fluctuated between 70,000 and 80,000 cubic meters. The only possible connection is whether the deaerator temperature is caused by fluctuations in the water circulation temperature? But isn’t it only the deaerator temperature that fluctuates by 10 degrees?
It is mainly caused by fluctuations in temperature and pressure. . . . . . . . . . . . . . . . . . .
Such temperature fluctuations should not cause such large variations in flow rate; check the instruments. Apart from the pressure measurement instrument, the others are not very accurate.
If this flow rate is usually accurate, blockages in the differential pressure on the upstream and downstream sides of the orifice flow meter can cause fluctuations in the flow rate
It’s probably a problem with the gauge, the pressure gauge
A stable liquid level in the scrubber tower does not mean that the level is accurate. It seems that the liquid level in the scrubber tower is incorrect, and the syngas at the outlet contains some water.
Fluctuations in the process gas flow rate are mainly caused by the following factors: 1. Changes in the flow rate of the material entering the gasifier, such as fluctuations in the flow rate of coal slurry or oxygen (including central oxygen flow)； 2. Fluctuations in the burner pressure difference can cause significant variations in the atomization of the coal slurry, leading to abnormal fluctuations in the reaction ； 3. Fluctuations in pressure in the gasification furnace system ； 4. The outlet temperature of the carbon scrubber changes ； 5. The process gas contains water ； 6. Instrument failure ；
Such large fluctuations are most likely caused by water.
What causes an increase in central oxygen levels and a decrease in ventilation volume?