[Production Version] Daily Question 2018-3-21 (Short Answer)
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Methanol synthesis catalyst reduction process: the “three” principles? (1) Three lows: low-temperature effluent; low H2 reduction; and low-load operation after reduction. (2) Three stabilities: temperature stabilization; H2 supplementation stabilization; effluent stability. (3) Three prohibitions: It is prohibited to raise the temperature while introducing H2; it is prohibited to allow moisture to enter the tower; it is prohibited to discharge water at high temperature for an extended period of time. (4) Three controls: control the H2 supplementation rate; control the CO2 concentration; control the hourly water output.
(1) Three lows: low-temperature effluent; low H2 reduction; and low-load operation after reduction. (2) Three stabilities: temperature stabilization; H2 supplementation stabilization; effluent stability. (3) Three prohibitions: It is prohibited to raise the temperature while introducing H2; it is prohibited to allow moisture to enter the tower; it is prohibited to discharge water at high temperature for an extended period of time. (4) Three controls: control the H2 supplementation rate; control the CO2 concentration; control the hourly water output.
Methanol synthesis catalyst reduction process: the “three” principles? 1. Pay attention to controlling the temperature of the catalyst bed ； 2. Pay attention to controlling the rate of the reduction reaction ； 3. Pay attention to the water output rate ； During the low-load production period following low-temperature water output and low-hydrogen reduction, the temperature should be stabilized, as well as the water output and hydrogen production levels. It is not allowed to increase the temperature while boosting hydrogen production; it is also not permitted to raise the temperature or maintain continuous water output at the same time. Reduction using high levels of carbon dioxide or carbon monoxide is not allowed.
1. Three lows: low-temperature effluent; low H2 reduction; and low-load operation after reduction. 2. Three stabilities: stability in temperature increase; stability in H2 supplementation; stability in water output. 3. Three prohibitions: It is not allowed to raise the temperature while introducing H2; it is not allowed to allow moisture to enter the tower; it is not allowed to have water exit at high temperature for an extended period of time.
Three lows: low-temperature water discharge, low-point reduction, and a low-load period after reduction. Three stabilities: stable temperature rise, stable water output, and stable hydrogen supplementation. Three prohibitions: It is forbidden to raise the temperature while using H2, it is forbidden to allow moisture to enter the tower, and it is forbidden to have water exit at high temperature for an extended period of time. Three controls: control the hydrogen supplementation rate, control the CO2 concentration, and control the hourly water output rate.
“The “three” principle. Three lows, three stabilities, three prohibitions, three controls. Three lows – low-temperature effluent, low-hydrogen reduction, and a low-load production period after reduction ； Three stabilities – temperature stabilization, hydrogen supplementation stabilization, and water output stabilization ； Three prohibitions – hydrogen introduction and temperature increase cannot be carried out simultaneously, and moisture must not be introduced into the tower ； Do not allow water to flow at high temperature for long periods of time ； Three controls – controlling the hydrogen supplementation rate, controlling the CO2+H2 concentration, and regulating the hourly water output; the maximum water output must be strictly kept between 300 and 350 kg/h.
“Three lows, three stabilities, and three prohibitions.
1) Three lows: low-temperature effluent; low H2 reduction; and low-load operation after reduction. 2) Three stabilities: stability in temperature increase; stability in H2 supplementation; stability in water output. 3) Three prohibitions: It is not allowed to raise the temperature while introducing H2; it is not allowed to allow moisture to enter the tower; it is not allowed to have water exit at high temperature for an extended period of time. 4) Three controls: control the rate of H2 addition; control the CO2 concentration; control the hourly water output.
(1) Three lows: low-temperature water output, low-temperature reduction, and a period of low-load operation after reduction； (2) Three stabilities: temperature stabilization, H2 supplementation stabilization, and water output stabilization ； (3) Three prohibitions: It is prohibited to raise the temperature while introducing H2, it is prohibited to allow moisture to enter the tower, and it is prohibited to discharge water at high temperature for an extended period of time ； (4) Three controls: controlling the hydrogen replenishment rate, controlling the CO2 concentration, and controlling the hourly water output.
(1) Three lows: low-temperature effluent; low H2 reduction; and low-load operation after reduction. (2) Three stabilities: temperature stabilization; H2 supplementation stabilization; effluent stability. (3) Three prohibitions: It is prohibited to raise the temperature while introducing H2; it is prohibited to allow moisture to enter the tower; it is prohibited to discharge water at high temperature for an extended period of time. (4) Three controls: control the rate of H2 addition; control the CO2 concentration; control the hourly water output