MTBE non-condensable gas recovery
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How to recover the non-condensable gas (0.001 Mpa) emitted from the methanol recovery tower of the MTBE plant.
:D:D Wouldn’t it be better to ask about the manufacturing process for this issue? We need experts – recovering gas from the device is difficult; the choice of method for collection is a problem
First, you need to determine the composition of those non-condensable gases; only based on that composition can you choose the appropriate methods for subsequent recovery or treatment. The non-condensable gases from MTBE plants are mainly C4 hydrocarbons, with saturated hydrocarbons being the predominant type; apart from being compressed and liquefied into liquefied gas, they have little economic value for other uses.
The emission volume is not high, and the pressure is low; it is not cost-effective to use a compressor, so venting to a flare is likely the most ideal option.
It is sent to the heating furnace using a blower as fuel.
For small quantities, using a flare is indeed a reasonable approach; however, attention must be paid to the concentration to ensure it remains outside the explosive range, and it is necessary to decide whether explosion-proof equipment should be used.
0.001 MPa – it’s a waste to discharge it into the flare; it would be better to release it directly into the boiler in the case of a circulating fluidized bed boiler.
This setup is located far away from the boiler, which makes it difficult to recycle the gas back to the boiler; the amount of non-condensable gas isn’t very large
There is dehydrogenation with dehydration, and none with flareing