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Everyone, I would like to ask about the compression process in the ammonia-alkali process, the selection of carbon dioxide compressors, precautions, process system configuration and other issues. condition: Ammonia-alkali production capacity is 300t/d. 1. Process flow issues. The process is divided into middle-stage gas compressor, lower-stage gas compressor and cleaning gas compressor. So I would like to ask, (1) The mid-stage gas is the kiln gas from the lime kiln. Before the kiln gas enters the mid-stage gas compressor, should it first enter the water separator to achieve a dehydration effect and meet the gas requirements of the mid-stage gas compressor? (2) In addition to lime kiln gas, can the source of cleaning gas be connected to a calciner gas pipeline? Should the furnace gas from the calciner also enter the separator first for dehydration? (3) The lower gas comes from kiln gas and furnace gas, so should it be treated in the same way as the above two gases? If separation is required, can I perform total gas separation on the main pipe first? 2. Compressor issues: (1) Is the compressor for this process a twin-screw wet compressor? (2) Twin-screw wet compressor, in terms of technology, enters low-pressure gas and outputs high-pressure gas. Input cooling water, remove cooling water and return water. Are there any other crafting materials? (3) For twin-screw wet compressors, in terms of civil engineering, since there is an oil system and a process system on the foundation plate of the compressor, should the manufacturer provide a center of gravity diagram (similar to a calciner) and basic details for the entire compressor foundation? Is there anything else to consider? (4) For twin-screw wet compressors, in terms of electrical aspects, in addition to providing electrical logic diagrams, does it include two motors? (Process motor and oil circuit motor), besides motor parameters, are there any other considerations? (5) For twin-screw wet compressors, in terms of instrumentation and control, in addition to providing oil circuit/process automatic control schematic diagrams and chain diagrams? Are there other considerations that should be provided? 3. Safety, environmental protection, occupational hygiene and energy saving in the compression process: (1) Regarding the safety issues of the compressor process, in addition to the mechanical hazards, noise, and electrical safety of large-scale operating equipment, how should other detailed considerations be taken? Does a carbon dioxide compressor also need to be grounded for static electricity? For high-speed running equipment, I think we should do it, right? How to consider fire protection? (2) Environmental issues: Do separation liquids, oil pollution collection, and gas impurities also need to be purified? (The air outlet pipeline of the compressor has a drain pipe) (3) Occupational hygiene means that the equipment layout leaves enough maintenance access and operating space. What should be considered for the carbon dioxide compressor? (4) Energy saving lies in model selection, right? Should I choose electric or steam power? Make an energy consumption calculation to calculate the economic pros and cons? Are there any other energy-saving considerations? Because this is my first time doing this ammonia-alkali compression, I don’t understand a lot of it. Please give me some professional advice. Thank you very much!