Methanol Purification Version – One Question per Day 20200408
Thread Content
The last edit to this post was made by hai8487 on 2020-4-7 at 17:05. Determination of the end point for the temperature increase and reduction process in the cat reactor, as well as precautions: Answer: Determination of the end point: (1) The percentages of CO + H2 at the outlet of the synthesis tower remain essentially constant； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
Answer: Endpoint determination: (1) The percentages of CO and H2 at the outlet of the synthesis tower are basically the same； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
??Answer: Endpoint determination: (1) The percentages of CO and H2 at the outlet of the synthesis tower are basically the same； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. ??Precautions:?? (1) Follow the heating and reduction curve strictly during the heating process. ??(2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to an excessive flow rate of water and a decrease in the mechanical strength of the Cat component. ??(3) Throughout the entire process, it is necessary to strictly follow the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
Endpoint determination: (1) The CO + H2% at the outlet of the synthesis tower is essentially consistent； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve
Endpoint determination: (1) The CO + H2% at the outlet of the synthesis tower is essentially consistent； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
Answer: Endpoint determination: (1) The percentages of CO and H2 at the outlet of the synthesis tower are basically the same； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. ??Precautions:?? (1) Follow the heating and reduction curve strictly during the heating process. ??(2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to an excessive flow rate of water and a decrease in the mechanical strength of the Cat component. ??(3) Throughout the entire process, it is necessary to strictly follow the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
Answer: Endpoint determination: (1) The percentages of CO and H2 at the outlet of the synthesis tower are basically the same； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
Endpoint determination: (1) The CO + H2% at the outlet of the synthesis tower is essentially consistent； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.
1) Analysis of the H2 concentration at the inlet and outlet of the methanol tower: no change in three consecutive readings. 2) When the hotspot temperature is 260°C and the bottom layer temperature is above 200°C, maintain this temperature for two hours; if the water vapor concentration remains below 0.1 g/m3 for three consecutive times or the water output is less than 2 kg/h. 3) The liquid level in the separator remains constant. 4) The total water output reaches the theoretical value
1) Analysis of the H2 concentration at the inlet and outlet of the methanol tower: no change in three consecutive readings. 2) When the hotspot temperature is 260°C and the bottom layer temperature is above 200°C, maintain this temperature for two hours; if the water vapor concentration remains below 0.1 g/m3 for three consecutive times or the water output is less than 2 kg/h. 3) The liquid level in the separator remains constant. 4) The total water output reaches the theoretical value
Endpoint determination: (1) The CO + H2% at the outlet of the synthesis tower is essentially consistent； (2) The liquid level in the separator (V4002) is no longer rising ； (3) Analyze the water content. Precautions: (1) During the heating process, strictly follow the heating and reduction curve. (2) It is required that the temperature rise be balanced and the water output even, in order to prevent too rapid a temperature increase, which could lead to too fast water output and a decrease in the mechanical strength of the Cat. (3) Throughout the entire process, it is carried out strictly in accordance with the principle of separating hydrogen and raising temperature at different times. (4) Keep proper special records and draw the actual temperature rise curve.