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Methanol Purification Version – Daily Question 202000709

2020-07-10View Original

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What is the reason for the excessive pressure difference in the Luchi water-cooled methanol synthesis tower? Answer: 1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #22020-07-11
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #32020-07-11
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #42020-07-11
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #52020-07-11
1) The load on the synthesis tower is too high. The amount of fresh gas entering the tower is too large, and the carbon monoxide content in the gas entering the tower is too high. The reaction within the tower proceeds well, generating a lot of heat; in order to maintain thermal balance throughout the tower, a large volume of recycled gas is used, which results in a high flow rate of gas inside the tower and an increase in pressure differences ; 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases ; 3) Severe pulverization and fragmentation of the catalyst ; 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #62020-07-11
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #72020-07-12
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Are there any damages or blockages in the internals of the synthesis tower?
Reply #82020-07-13
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.
Reply #92020-07-14
1) The load on the synthesis tower is too high: the amount of fresh gas entering the tower is excessive. The carbon monoxide content in the gas entering the tower is too high; the reaction in the tower proceeds well and generates a large amount of heat. To maintain thermal balance throughout the tower, a large volume of gas is circulated, resulting in a high flow rate of gas inside the tower and an increase in pressure difference. 2) The circulation volume of the synthesis tower is large. The synthesis cycle volume is too large, the space velocity in the tower is high, and the pressure drop across the gas increases. 3) Severe pulverization and fragmentation of the catalyst. 4) Check whether there is any damage or blockage in the internals of the synthesis tower.

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