What kind of compressor is suitable for producing methanol from coke oven gas? ?

I learned a bit of knowledge. Thank you for looking back again. .

Based on the operational experience of various enterprises that produce methanol from coal, centrifugal compressors are a better choice; especially nowadays, as coal chemical production becomes more large-scale, centrifugal compressors offer undeniable advantages as well as operational flexibility! It can be said that over 90% of chemical manufacturing enterprises today use centrifugal compressors. In the process of producing methanol from gas, the raw gas is first vaporized; after it passes the conversion process and meets the required standards, it enters the purification stage. There, the gas components necessary for methanol synthesis are obtained, and then this gas is fed into a synthesis compressor to be compressed to the desired pressure before being sent to the synthesis tower for methanol production! The specific compression pressure must be determined based on the gasification pressure! For example, if the pressure in the gasification furnace is 4.0 MPa, then a synthesis pressure of 5.5 MPa will suffice; if the pressure in the gasification furnace is 6.0 MPa, then a synthesis pressure of 8.5 MPa is required! With the increasing adoption of domestic production for chemical equipment, most chemical companies now use centrifugal compressors manufactured by Shenyang Blower Factory! The turbines used in conjunction with the compressors are produced by Hangzhou Turbine Factory, and their performance is excellent!

Thanks to the person above. . There are quite a number of manufacturers of compressors in China; given the need to meet production demands while keeping costs under control, it is important to find manufacturers with reliable quality. In the field of methanol production from coke oven gas, the technology is mature and production is stable. As you mentioned, Shengli Heavy Machinery is said to be very good. .

Due to the special characteristics of the coke oven gas methanol plant, two compressors are required to meet supply and demand needs: one is needed for compression before desulfurization, and since gas tanks cannot completely remove the solid impurities present in the gas, a reciprocating compressor should be used in this case. Secondly, for the syngas compression machines (including circulators) in the methanol plant, it is recommended to use centrifugal compressors.

Thank you to the person above; I now understand most of it. . The specific manufacturing process is still under study*; I hope teachers with practical production experience can offer guidance. . Thank you

For compressors used in methanol production, reciprocating types are preferable. The location where the compressor will be used should be determined according to the designs provided by the actual design team. I’m not aware of your specific production process, so I can’t give an answer on that. As for brands, we use those produced by Shenyang Compressor Factory; some people also say that compressors from Shanghai work well as well. It really depends on your actual needs. Additionally, your question could be more comprehensive and detailed. Okay!

Reciprocating compressors, combined units, are used for coke oven gas and syngas compressors. This machine features a symmetrically balanced four-row, three-stage compression system, with two primary cylinders and one each for the second and third stages. The symmetrically balanced compressor ensures equilibrium of inertial forces; moreover, since the piston forces in the opposite rows are opposite to each other, they cancel out, reducing wear between the main journal and the main bearings. Is this information provided by the design institute? ?

Reciprocators for coke oven gas, centrifuges for synthetic cycle gas