Can a centrifugal compressor used for compressing coke oven gas be used to compress air?
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Can a centrifugal compressor used to compress coke oven gas be used to compress air? Seeking advice from experts.
What the poster is referring to is probably the air pressure test for the newly installed units, right? If so, it’s possible as long as the compression ratio and the final exhaust pressure are well controlled.
It is necessary to perform a proportional conversion based on the molecular weight of the gas, in order to calculate the pressure and flow rate under air conditions, before conducting testing
How to convert?? Please provide the specific formula
As the molecular weight increases, the outlet pressure rises and the power increases, while the rotational speed and inlet conditions remain unchanged. For the air test run of the compressor used to compress coal gas, it is possible to discuss with the compressor manufacturer regarding the maximum exhaust pressure; at the same time, it is necessary to control the compression ratio and the final exhaust temperature properly.
Coke oven gas actually has a very complex composition, making it difficult to calculate precisely. Under normal conditions, its composition is as follows: hydrogen – 55%~60%, methane – 23%~27%, carbon monoxide – 5%~8%, unsaturated hydrocarbons with two or more carbon atoms – 2%~4%, carbon dioxide – 1.5%~3%, oxygen – 0.3%~0.8%, and nitrogen – 3%~7%. The average molecular weight of coke oven gas ranges from 10.08 to 11.2, and its molecular weight is lower than that of air
A project from 2006: commissioning of a gas blower to blow air. Pay attention to the size of the air damper to control the load power and temperature. I remember the fan casing temperature reaching 120.