Methanol Technical Version Daily Question (Short Answer) [2018-2-5]
Thread Content
Reasons for excessive water content in refined methanol product and solutions? Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage. ② Low reflux ratio and high reflux temperature. ③ High flow rate or pressure of the heat source in the reboiler. ④ Elevated temperatures in each stage. ⑤ Low top pressure of the tower. Treatment: ① Repair the internally leaking heat exchanger. ② Increase the reflux rate and lower the temperature of the reflux liquid. ③ Control the amount of heat input to the reboiler as well as its pressure. ④ Reduce the temperatures of each stage to normal levels. ⑤ The output is directed to the crude alcohol tank; once it meets the required standards, it is sent to the refined alcohol tank.
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage; ② Low reflux ratio with high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in each layer to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Abnormally high temperatures in various layers; ⑤ Low top pressure of the tower. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels
Reasons: ① Cooler leakage; ② Low reflux ratio and high reflux temperature; ③ High flow rate or pressure of the heat source in the reboiler; ④ Elevated temperatures in various layers; ⑤ Low pressure at the tower top. Solutions: ① Repair the internally leaking heat exchanger; ② Increase the reflux rate and lower the temperature of the reflux liquid; ③ Control the amount of heat supplied to the reboiler as well as its pressure; ④ Reduce the temperatures in various layers to normal levels; ⑤ Direct the output to the crude alcohol tank, and transfer it to the refined alcohol tank once it meets the required standards.
Reasons: ① Cooler leakage. ② Low reflux ratio and high reflux temperature. ③ High flow rate or pressure of the heat source in the reboiler. ④ Elevated temperatures in each stage. ⑤ Low top pressure of the tower. Treatment: ① Repair the internally leaking heat exchanger. ② Increase the reflux flow and lower the temperature of the reflux liquid. ③ Control the amount of heat input to the reboiler as well as its pressure. ④ Reduce the temperatures of each stage to normal levels. ⑤ Direct the output to the crude alcohol tank; once it meets the requirements, transfer it to the refined alcohol tank