[Q&A Question 233] 2018.08.27
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【Q&A Question 233】August 27, 2018: Briefly describe how the control rates of temperature and pressure are managed during the start-up and shutdown of the plant 1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
During startup, voltage and temperature must be increased gradually. During the shutdown process, pressure and temperature should be reduced slowly.
1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
Answer: 1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
The basic principle is to increase or decrease the temperature and pressure gradually, with temperature changes of ≤25°C/h and pressure changes of ≤0.5~1.0 MPa/h
1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
1) The temperature change should be ≤25°C/h, and the pressure change should be ≤(0.5–1.0) MPa/h, in order to prevent equipment leakage and damage to the catalyst. 2) When the temperature…
1. The basic principle is to reduce temperature and pressure slowly, as well as increase them slowly; the rate of temperature change should be ≤25°C/h, and the rate of pressure change should be ≤0.5–1.0 MPa/h, in order to prevent equipment leakage or damage to the catalyst. 2. When the temperature is <135°C and the pressure is no greater than 3.5 MPa, this prevents temper embrittlement damage to the reactor.