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Transformation reactions in the HL-T gasification chamber

2015-09-23View Original

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Reformation reactions occasionally occur in the combustion chamber of the gasifier; I don’t know why. I wonder if other manufacturers experience this issue as well? What are its reaction conditions? This reaction was unannounced and very sudden
Reply #22015-10-21
I’m not sure whether the situation mentioned upstairs refers to that case; could it be explained in more detail? Under normal production conditions, when medium-pressure steam is not in use, such a situation may be caused by damage to the tubes in the oxygen preheater, allowing medium-pressure steam to leak into the oxygen system. The temperature of the vaporizer will also decrease to varying degrees depending on the amount of leakage.
Reply #32015-10-21
Do transformation reactions occur in the gasification chamber of space furnaces? The cause can likely be identified from the reaction flow field; I know that an inverse transformation reaction occurs in the water-coal slurry gasification chamber.
Reply #42015-10-21
Could you describe the specific situation in more detail?
Reply #52015-10-22
The inverse transformation reaction of water-coal slurry occurs when the slag outlet is blocked, and it is fundamentally different from that in a space furnace. In coal-fired boilers, medium-pressure steam is introduced into the oxygen pipeline before it reaches the burner; by controlling the water-to-gas ratio, the hydrogen content in the syngas can be increased. If the composition of the syngas fluctuates significantly in the absence of this medium-pressure steam, it may be due to a leak in the oxygen preheater. You can try cutting off the medium-pressure steam and pay attention to the changes in the composition of the syngas.
Reply #62015-10-22
How did the original poster determine that a transformation reaction had occurred? There should be a shift reaction inside the gasifier originally; it’s just that various reactions reach an equilibrium state.
Reply #72015-10-24
I understand that the transformation reaction he is referring to is likely a change in the gas composition: carbon monoxide decreases, carbon dioxide increases, and hydrogen increases

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