Recycling technology for residual and waste liquids from ethylene glycol plants
Thread Content
In recent years, the coal chemical industry has seen rapid development, with many new plants for producing methanol from coal, MTO, ethylene glycol, and other products. In particular, there are a large number of ethylene glycol production facilities. After such plants are built, they often face the problem of disposing of the distillation residues. These residues contain large amounts of ethylene glycol, 2-ethylene glycol, 3-ethylene glycol, and other heavy components; this not only leads to significant waste of product but also poses considerable environmental risks for the companies involved. In fact, these residues or waste streams have great potential for reuse – effective ethylene glycol components can be recovered through methods such as vacuum distillation, and then either reused in the main production process or sold as a separate product, yielding substantial economic benefits. The heavy components recovered can also be subjected to catalytic cracking under certain conditions, further improving the efficiency of recovery. It has been successfully applied in similar devices for many years, with a large number of successful applications in devices for ethylene glycol, butyl octyl alcohol, butanediol, and others. Discussion is welcome.
Hello, could you please provide a specific solution or contact information?……
The ethylene glycol content in the residue is very low, right? Is it worthwhile to recover it? Should residual waste from the night be treated as hazardous waste? Hey, could you explain it in more detail?
We are currently exploring and learning about such technologies. I would appreciate any insights you might have; thank you
Add another distillation tower? So ethylene glycol doesn’t polymerize?
Could you roughly describe the process after recombination?
:L high-vacuum distillation is used to separate the trimer/dimer, which can then be sold directly as a raw material to those who produce polyether polyols
:L high-vacuum distillation is used to separate the trimer/dimer, which can then be sold directly to those who produce polyether polyols as raw material: lol
Ethylene glycol residues are hazardous waste and can be recovered through vacuum distillation. Trimeric and dimeric forms are more difficult to extract, even under high vacuum conditions. The residue remaining after the distillation of ethylene glycol waste is also significant, making it difficult to handle, and the cost of incineration is relatively high as well.