What measures do everyone have in place to prevent waste with the MDEA decarbonization solution?
Thread Content
In the decarburization process of our ammonia synthesis plant, an MDEA decarburization solution is used; this solution offers excellent absorption efficiency, causes little corrosion, and results in minimal pollution. But the biggest drawback is its high price and difficulty in purchasing it. Therefore, our unit has implemented various protective measures during operation in order to reduce waste during equipment maintenance. Minimize consumption as much as possible. For example: Install downcomers on filters and the like to direct the liquid to an underground collection tank ； It is specifically equipped with a funnel to collect leaks during maintenance, etc. I’m not sure what other measures everyone has to prevent waste of the MDEA decarboxylation solution; please share them with us.
Ensuring effective demisting, as well as subsequent separation and recovery, is of utmost importance; long-term entrainment losses can be significant. Process level balance is also important; it’s inevitable that there will be solutions in the wastewater
You have done a good job; as long as the liquid is properly recovered during maintenance and care is taken during operation, there should be less waste!
First, eliminate leaks by installing a demister at the gas outlet of the absorption tower to reduce gas entrainment; additionally, as mentioned by the original poster, collect tanks should be installed at the filters and pump packing areas.
What is the scale of ammonia synthesis at the owner’s facility? I’ve rarely heard of MDEA being used in this context. I knew a little about it before; is the desulfurization and decarburization processes carried out separately?
Reply to 5# baozhu200499: We are working on a project involving 450,000 tons of synthetic ammonia; generally, desulfurization and decarburization are carried out separately, right? After all, all their process media are different. I’m not sure what technique my friend is using; could you tell me so I can learn from it?
Reply to 6# sean816: We also produce 450,000 tons of synthetic ammonia and are planning to use low-temperature methanol washing; how is your MDEA performing?
Reply to 7# baozhu200499: The usage method is the same as that of ordinary decarburization solutions – absorption at low temperature and high pressure, and regeneration at high temperature and low pressure!