Reactor pressure increase
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10L reactor, carbon dioxide is introduced at room temperature. What pressure in Mpa needs to be applied at room temperature in order to reach 15 Mpa at 100 degrees Celsius? What should be noted when heating? Thank you
The problem is too complicated; even the experts have gone to look it up in books~~~;P
When increasing the temperature and pressure, it is necessary to use a temperature rise curve. For high-temperature and high-pressure reactors, during the first start-up, the pressure should not exceed 1/4 of the design pressure before the temperature reaches 93°C. In other cases, the temperature should generally not rise by more than 50°C per hour. This depends on the material used; you need to discuss the appropriate rate of temperature increase with experts in materials science. If necessary, opt for a more conservative approach, with a temperature increase of 25°C per hour and a pressure increase of 1–1.5 MPa
I came in looking completely confused. If PV/T = C, then at room temperature (taking a point below the critical temperature, such as 30°C), the pressure should be 12.26 MPa. But what is the state of carbon dioxide at this pressure and temperature? Gas-liquid mixture? The mixed state relates to the amount of carbon dioxide filled. :Is Q thinking this way? (The saturated vapor pressure at 30 degrees Celsius is 7.21 MPa.) ）
Look at the coefficient of expansion of carbon dioxide at room temperature, and then see what it is at 100°C; with that information, it should be possible to calculate it. As for increasing the temperature, as long as it is done gradually, there shouldn’t be any problems. I’m a complete beginner; there might be mistakes