Methods for treating synthetic oil water
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The water quality in our synthesis cycle is too poor; there’s too much oil, which is a real headache. I wonder how everyone handles oil and grease – are there any good tips?
There is too much oil in the water quality of the synthesis cycle; this oil generally comes from compression. It is necessary to collect the oil and water from each gas-water separator through pipelines for separate treatment. Usually, an emulsifier is added to the gas-water separators to collect the waste oil – this is what is known as the \"oil and water separation without spillage\" technique.
Simpler methods include oil separators; other options are air flotation, coagulation and sedimentation, etc., and many resources provide information on these
For the situation you described, the membrane method is recommended; inorganic membrane modules can be used, which allows the oil to be recycled and the water to be reused as well. The maintenance costs are not high, aside from the cleaning of the membranes. This process is now used by large steel mills such as Baosteel.
For the situation you described, the membrane method is recommended; inorganic membrane modules can be used, which allows the oil to be recycled and the water to be reused as well. The maintenance costs are not high, aside from the cleaning of the membranes. This process is now used by large steel mills such as Baosteel.
Oil removal in LZ is generally achieved using oil separators or air flotation technology, with air flotation technology yielding the best results. Oil separators are more commonly used in wastewater treatment, while they are less frequently used in circulating water treatment.
There are a few questions I’d like to ask the original poster first: 1. Does your synthetic circulating water refer only to the water used in the cooling system? What are the components of a cooling system? (Coolers such as synthetic loop and methanol coolers, water coolers for each stage of the compressor, oil coolers for transmission equipment; whether the ammonia compressor system uses the circulating water you mentioned, etc.) 2. Is the oil and water discharged by your oil-water drainage system also combined with the water from the cooling system for treatment? If the oil and water discharged by the system are treated together with the cooling system, is the oil and water first subjected to oil removal measures to remove all the oil before being introduced into the system? 3. Whether a fan is used in the circulating water system. Once you answer the above questions, your problem will be solved!
1. Does your synthetic circulating water refer only to the circulating water used in the cooling system? What are the components of a cooling system? (Coolers such as synthetic loop and methanol coolers, water coolers for each stage of the compressor, oil coolers for transmission equipment; whether the ammonia compressor system uses the circulating water you mentioned, etc.) 2. Is the oil and water discharged by your oil-water drainage system also combined with the water from the cooling system for treatment? If the oil and water discharged by the system are treated together with the cooling system, is the oil and water first subjected to oil removal measures to remove all the oil before being introduced into the system? 3. Whether a fan is used in the circulating water system. Once you answer the above questions, your problem will be solved! 1. Yes: synthetic heat exchangers, compressor heat exchangers, methanol heat exchangers. 2. Yes, combined treatment is used; in production, efforts are made to avoid mixtures of oil and water. 3. A fan is being used
The poster can also use bag filters equipped with oil-absorbing cartridges; however, such cartridges are relatively expensive, and it is necessary to keep the flow rate of the liquid low in order to absorb as much oil as possible from the water.
How high are the costs of filter bags? Are there any other solutions, such as using chemical agents?