Purification Technology Edition: Daily Question [2017-11-6]
Thread Content
What should be done if a high water content in methanol is detected before driving? Answer: A circulation system is established across the entire system; methanol containing a high amount of water at the bottom of large containers is gradually transferred into underground tanks, where it is then pumped into a methanol-water separation tower for separation.
Fractionation is a method for separating mixtures with different boiling points; it involves heating a mixture and then cooling it to separate its various components based on their different boiling points, thereby obtaining relatively pure individual substances.
A circulation system is established across the entire system; methanol containing a high amount of water at the bottom of large containers is gradually discharged into underground tanks, from where it is pumped into a methanol-water separation tower for separation.
A circulation system is established across the entire system; methanol containing a high amount of water at the bottom of large containers is gradually discharged into underground tanks, from where it is pumped into a methanol-water separation tower for separation.
Before driving, if a high water content in methanol is detected, measures should be taken as soon as possible to reduce this water content: 1) Establish a circulation system throughout the entire system； 2) Put C-405 into operation as soon as possible, and appropriately increase the amount of methanol reflux from C-404 to the top of tower C-405 ； 3) The methanol (with high water content) at the bottom of the large container is gradually transferred to V-408, and from there it is sent to C-405 via P-407 for dehydration.
1. Send some methanol to the storage tank to replenish fresh methanol; 2. Start the water separation tower first.
This post was last edited by wen*anzhao on 2017-11-6 at 09:21. A circulation system was established throughout the entire system; methanol with a high water content at the bottom of the large containers was gradually transferred into underground tanks, where it was then pumped into a methanol-water separation tower for separation.
Answer: If a high water content in methanol is detected before driving, measures should be taken as soon as possible to reduce this water content: 1) Establish a circulation system throughout the entire system； 2) Put C-405 into operation as soon as possible, and appropriately increase the amount of methanol reflux from C-404 to the top of tower C-405 ； 3) The methanol (with high water content) at the bottom of the large container is gradually transferred to V-408, and from there it is sent to C-405 via P-407 for dehydration.
The system circulates and is fed into the separation tower for separation
A circulation system is established across the entire system; methanol containing a high amount of water at the bottom of large containers is gradually discharged into underground tanks, from where it is pumped into a methanol-water separation tower for separation.
Before driving, if a high water content in methanol is detected, measures should be taken as soon as possible to reduce this water content: 1) Establish a circulation system throughout the entire system； 2) Put C-405 into operation as soon as possible, and appropriately increase the amount of methanol reflux from C-404 to the top of tower C-405 ； 3) Gradually transfer the methanol (with high water content) at the bottom of the large container to V-408, and send it from P-407 to C-405 for dehydration