How to transport explosive gas mixtures
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This post was last edited by kele135 on 2016-7-8 08:17. Industrial processes generate exhaust gas that contains about 35% of flammable and explosive gases (CO+H2+CH4), around 10% oxygen, with the remainder being nitrogen. Based on rough calculations, it should be within the explosion limit; it needs to be transported to a flare located 1000 meters away for combustion. What method should be used for transportation?
It should be diluted and displaced with nitrogen; the oxygen content in your exhaust gas is really high. It can’t stay that high all the time, right?
Why not? Is the risk very high? Why did I ask the design team, and they all said it wasn’t a big problem?
This post was last edited by jinqhuaxz on 2016-7-8 at 11:32: after direct washing (mainly to reduce temperature and increase humidity), nitrogen or CO2 is used to initiate combustion.
The oxygen concentration here is too high; it should be diluted first. Moreover, can gases entering the flare system contain oxygen? There are other gases in the flare system as well, and if oxygen gets there, it might reach the explosive limit
If the quantity is small, you can simply use a pure oxygen burner to provide heat; of course, you first need to determine whether there is still a risk of explosion.
It would be a waste to go to the torch. If the quantity is substantial and continuous, it can be sent to the fuel pipeline network using a compressor
What should be noted during transportation? It contains oxygen inside
What type of exhaust gas is this from? I think it’s a problem with the process design; perhaps there is an issue with the chosen process route or the composition of the materials. This type of mixed gas is extremely dangerous not only to transport, but also to store or release. Hydrogen and carbon monoxide have wide explosion limits; any minor mistake in transporting these gases can potentially lead to an explosion within the pipelines or containers. I think we should discuss solutions at the root of the problem, rather than sending this already highly dangerous gas to a flare – as this could potentially cause backflow at the flare.