Selection of compressor
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A stream of ethylene gas at 22 barg needs to be pressurized to 24.5 barg, with a flow rate of around 5 t/h. What type of compressor would be suitable for this purpose? It would be great if you could help analyze it from aspects such as process, cost, and interlock complexity. Thank you!
Are the considerations the same for 1 m3/h and 10,000 m3/h? Just a few words like that and people have to analyze it from so many aspects – it’s amazing
This post was last edited by Cui Cui upc on 2018-9-27 at 12:47. I mentioned that the flow rate is 5 tons/h, the pressure is between 22 barg and 24.5 barg; the temperature wasn’t specified, but it’s at saturation, at -22 degrees. What other conditions are required? Please advise. In my opinion, if a centrifugal compressor is used, the interlocks and anti-surge mechanisms will be rather complicated to implement. In this case, the compression ratio is also relatively low; I’ve seen most compressors have a compression ratio of 1.5 or higher. There are also screw compressors, but I don’t know much about them; are their processing capacities relatively low? Is it suitable for this case? I’ve only mentioned some aspects that might need to be considered; everyone is free to share their opinions, and anything that comes to mind is fine – it’s not necessary to analyze everything. Senior, please don’t get angry.
I'm sorry. It was my negligence; I didn’t notice the data usage. I’m very dissatisfied with many low-IQ questioners in the first grade; this useless website doesn’t get any improvements either. I don’t understand compressors in that traffic range – I’ll wait for someone more experienced to answer
This post was last edited by Cui Cui upc on 2018-9-28 08:42. Young people also need to grow up and must be brave enough to speak up; it’s great if those who are older are willing to help answer questions, and even criticism can be useful for improvement. I believe most people won’t ask questions casually, after all, providing answers also takes time.
This post was last edited by Qingcheng Jun on 2018-9-28 at 14:04. If you spend more time on the forum, you’ll see just how casual the questions from first-year users are. I’m simply too lazy to explain the problem clearly
The capacity is too low; a centrifuge is definitely not cost-effective. Piston maintenance is troublesome, so screw compressors are a better choice.
Thank you; I checked the information on several screw compressors, and their maximum discharge pressure is around 1.3 MPa only. Does this refer to the absolute value or the difference between the inlet and outlet?