(Daily Question) Coal-to-oil and olefins forum, 1.6.2018
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3.jpg Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: The three cooling levels provided by the propylene refrigeration compressor in the (DMTO) olefin separation unit are: 7 degrees, -24 degrees, and -40 degrees! Note: The answers will be released automatically in two days!
7℃, -24℃, -40℃
Propylene refrigeration compressors mainly provide refrigerants at 7°C, -24°C, and -40°C temperatures
Three cooling levels provided by the propylene refrigeration compressor in the olefin separation unit: 7°C, -24°C, -40°C℃
Propylene refrigeration compressors mainly provide refrigerants at 7°C, -24°C, and -40°C temperatures
The refrigerant temperatures for the propylene refrigeration compressors in MTO are +7°C, -24°C, and -40°C respectively (there are slight variations in the design of each process unit, but these variations generally do not exceed 1.5°C)
The refrigerant grades are generally 7°C, -24°C, and -40°C. At 7℃, the back pressure is generally 0.55–0.63 MPa; at -24℃, it is usually 0.155–0.163 MPa, and at -40℃ it is around 35–45 kPa. Of course, a lower back pressure is beneficial for the vaporization of propylene. The propylene system also contains propylene as a heat source at 40°C and propylene as a heat source at -24°C. It is recommended to discuss in depth that the propylene refrigeration compression system is the core of olefin separation and is closely related to cold separation and product gas cooling.
Propylene refrigeration compressors mainly supply refrigerants at -7, -24, and -40 degrees Celsius
Propylene refrigeration compressors mainly provide refrigerants at 7°C, -24°C, and -40°C temperatures
Propylene refrigeration compressors mainly provide refrigerants at 7°C, -24°C, and -40°C temperatures.
7℃, -24℃, -40℃ grades