How can methanol synthesis systems save energy?
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How can methanol synthesis systems save energy? How can new and existing installations achieve energy savings.
The exit temperature of the methanol synthesis gas heat exchanger is 100–120°C; typically, it is directly cooled (using air coolers, water coolers, evaporative coolers, or seawater cooling) to 30–40°C before methanol is separated. Can this portion of low-grade thermal energy be utilized effectively?
The calorific value of this heat is too low, and there are very few areas where it can be utilized. Our calculations show that the investment required for equipment to recover this heat exceeds the value of the heat itself.