Oil-free air compressors are expensive; are there any cost-effective alternatives for obtaining oil-free compressed air?
Thread Content
The oil content in air compressors is always very high; using ordinary filter elements provides only short-term results and cannot ensure stability or sustainability. However, oil-free machines are relatively more expensive; how can one achieve better cost-effectiveness? Many people believe that only oil-free compressors can ensure that the compressed air is oil-free. This is a **misconception**. Just because an oil-free compressor is used doesn’t necessarily mean the compressed air will be oil-free. Oil-free compressors produce oil-free compressed air simply because they don’t require oil for lubrication; instead, water is used to lubricate the gears. Therefore, using an oil-free compressor merely reduces the source of oil contamination at the initial stage, but it cannot guarantee that the air itself is completely oil-free. Moreover, it has no oil-removal capabilities whatsoever. In fact, oil contamination in the air is also quite serious, with varying levels of pollution in different areas. In some industrial zones where pollution is severe, the oil contamination in compressed air is particularly high, and its concentration increases further after being compressed by the compressors. Therefore, for industries that require high-quality gas sources, oil removal equipment is also installed at the back end. II. Only by using oil-free compressors can oil-free compressed air be obtained. In fact, obtaining oil-free compressed air is not limited to the use of oil-free compressors; there are also catalytic oxidation devices available on the market that can be connected directly to the output side of oil-containing air compressors, thereby producing stable grade-0 oil-free compressed air. These devices utilize the catalytic oxidation effect of catalysts to break down oil molecules in the compressed air into carbon dioxide and water, thus removing the oil molecules from the air. During this process, the catalyst does not participate in the reaction, so there is no loss of consumables, allowing for continuous and stable operation. The treated compressed air can stably achieve ISO8573.1-0 class oil-free status. Moreover, it is equipped with an oil engine, resulting in a lower purchase cost and more stable performance. Therefore, the approach of using back-end oil removal equipment offers a high cost-performance ratio: it eliminates the need for costly maintenance due to frequent failures in oil-free machines, as well as the requirement to replace filter elements frequently. Saves time, effort, and hassle.
Dry screw technology is relatively mature, but it is also much more expensive. It remains a good option if cost is not a concern; however, in reality, the catalytic oil removal devices used as supplementary systems are also quite safe and reliable.
Hehe, it’s better to just promote your “catalyst” and “back-end catalytic oil removal device”. Right from the start, it denies the compressor first,,, It would be more persuasive to make any evaluations after gaining a comprehensive understanding of the compressors used in various types and fields. Promote the products; do not slander the related equipment. As you said, the air compressors used in cryogenic applications must be oil-lubricated, which is impossible. With all due respect. Oh, waiting for a more detailed explanation of the working principle of the “catalyst” and the “back-end catalytic oil removal device”. Thank you!
Yes, while ensuring quality standards, it is also necessary to ensure economic criteria
The 4th floor is correct. We are manufacturers of centrifugal air compressors, and each type of product has its own areas of application as well as specific usage scenarios ； Praising some and criticizing others is not objective
In fact, no compressors are being dismissed here; rather, another method of obtaining oil-free air is being introduced to everyone. I’ll explain the working principle of catalysts – as mentioned in the text, through the catalytic action of catalysts, compressed air is heated to a certain temperature. At this temperature, the catalysts cause the hydrocarbon compounds in the compressed air (including oil molecules) to react with the oxygen in the gas, resulting in the formation of carbon dioxide and water: CnHm + (n+m/4)O2 → nCO2 + m/2H2O. In this process, the catalyst only plays a catalytic role and does not participate in the reaction, making it a sustainable process. I also hope you won’t misunderstand; there is no act of siding with one party.
This post was last edited by Baus Purification on 2021-2-26 at 11:16
I’m a retired old man; I’m not involved in any stepping or whatnot. I’m simply curious about such things. When it is said that air is heated to a certain temperature, where does the energy required for this heating come from? There are requirements for the dew point of water in dry air; how can this be achieved? Also, I would like to know about the lifespan of the catalyst; it would be great if there could be a comprehensive overview. Thank you!
For dry air, we recommend installing our equipment after a refrigerated dryer. If there is no such dryer, we also recommend using a pre-filter to ensure effective oil removal. Secondly, air heating is related to the product structure; we use heaters to heat the air to an appropriate temperature. If you are interested in anything else, you can contact us directly at: 023-61750570
Hehe, as expected, it’s just a case of taking things out of context for product sales. This is really disconnected from actual use. No reply is needed; for reference only.