Purification Technology Edition: Daily Question [2017-10-21]
Thread Content
What factors can cause an increase in the water content within the system? Answer: ① Poor control of the methanol-water separation tower? Excessively high top temperature and low amount of recycled methanol. ②Reasons for the conversion system issue? Excessively high temperature of the conversion gas or water in the ammonia scrubber. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
①The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol reflux. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
①Difficulty in controlling the methanol-water separation tower? Excessively high top temperature and low amount of methanol reflux. ②Reasons for the conversion system issue? Excessively high temperature of the conversion gas or water in the ammonia scrubber. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
Answer: ① The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol returning to the tower. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
①The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol reflux. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
①The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol reflux. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
①The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol reflux. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
:①The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol reflux. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.
The alcohol-water separation tower is not well controlled; the temperature at the top of the tower is too high, and the amount of methanol returning is insufficient
Internal leakage in the heat exchanger, internal leakage in the reboiler, high gas temperature with water content, improper operation of the water separation tower, improper operation of the regeneration tower
①The methanol-water separation tower is not well controlled, resulting in an excessively high top temperature and a low amount of methanol reflux. ②Due to issues with the conversion system, the temperature of the conversion gas is too high or the ammonia scrubber contains water. ③There is a leak in the reboiler of the regeneration tower or in the methanol reflux cooler at the top of the regeneration tower.