How can ammonia synthesis operations be made more energy-efficient?
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How can the operation of Kellogg T-type plant with an annual output of 300,000 tons of synthetic ammonia be made as energy-efficient as possible? In my opinion, 1) the water-to-carbon ratio should be determined such that decarbonization and regeneration can take place, while also maintaining balance in the decarbonization system. 2) The pressure of the feed gas – higher feed gas pressure means a lower rotational speed for unit 102-J. 3) There needs to be a pressure balance between medium-pressure and high-pressure steam in the urea and synthesis systems! The higher the pressure, the greater the heat enthalpy of the steam. 4. By reducing the circulation volume of the decarburization solution, it is possible to lower the heat required for regeneration while also saving electricity, provided that the levels of carbon dioxide and the safety of the hydraulic turbine are maintained. 5. Reducing the rotation speed and increasing the pressure ensures the safety of the decarburization hydraulic turbine; at the same time, the heat enthalpy of the fluid in the decarburization system increases. Since 103-J represents high-pressure steam, this approach also helps to reduce the consumption of such steam. What do you all think? Is there any more? Thank you!
1 Reduce the degraded use of energy; for example, avoid using pressure reducers as much as possible, and prefer to use saturated steam in SL heat exchangers. 2 Condensate from recovery process, steam condensate
The part above is a bit general; could it be more detailed? Thank you
There’s too much to say on this topic; it’s recommended that the original poster discuss each aspect separately. With a question like this, only a general principle can be answered – ensuring no waste in the production process is what counts as energy conservation, and ensuring safe and stable operation over a long period is also considered energy conservation! How to ensure that each work stage has its own requirements!