Should a gasification flare be installed for water-coal slurry gasification?
Thread Content
I know that accident flares are necessary, but I would like to ask whether a vaporization flare should be installed to burn the acidic gases that come out of high-pressure flashers, along with an eternal flame. Isn’t most of those acidic gases carbon dioxide? Why not just use the previous chimney? The investment required for a new torch is too high. Does anyone have a convincing explanation for this?
A start-up flare and an emergency flare are required. Due to different pressures, different pipes are required to deliver the material to the flare tip.
Low-pressure gas can be discharged directly, but it seems impossible to do that with high-pressure gas; it’s better to send it to the flare
Vaporization does not require a separate acidic gas combustion torch; it can be integrated into the system’s emergency torch, and the emergency torch and the startup torch can be combined into one large torch
The flash vapor discharged from the high-flash separation tank contains 25.6% CO, and it must be sent to a flare for combustion; otherwise, it will pollute the environment. This portion of gas is directly fed into the startup flare line, where it can be burned off by the startup flare.
Acidic gas contains some hydrogen sulfide, which must definitely be sent to a flare for burning； If acidic gases are discharged directly into the main flare, whose material is usually carbon steel, this will cause corrosion; therefore, a separate flare for acidic gases is generally installed. As for the pressure issue, when it is routed into pipes as thick as those used for torches, there is only a slight positive pressure, which will not cause gas leakage.
Everything was explained very well; keep learning!
Agree with the opinion from floor 8. Components such as CO, H2, H2S, and NH3 cannot be released directly.
Similar to the SHELL furnace, from the perspective of environmental protection and safety, the flare should be gasified.
There needs to be such a pipeline leading to the torch, and since the purpose is to remove acidic gases, special consideration must be given to the material used.
We installed two methanol plants with capacities of 200,000 and 400,000 units; they use Texaco technology for gasification and are equipped with flare systems for venting.
A torch is definitely necessary. Unless it is in a place with low environmental standards, like Shanxi Xifengxi, where this can be done.
The entire plant will only need one flare tower; as long as its capacity is sufficient! ! ! The torch pipeline is so thick; it’s fine to apply those few kilograms of pressure with a high flash point
The flash vapor discharged from the high-flash separation tank contains 25.6% CO – is that really the case? If there really are that many, it’s necessary to consider recycling them.