Practical Exercise on Purification Technology Version [018]
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This post was last edited by hai8487 on 2017-7-28 11:27. What are the reasons for the increased CO content at the outlet of the converter? Answer: 1) Large and frequent temperature fluctuations. 2) Overproduction. 3) Low steam addition rate. 4) Catalyst poisoning gas bypass. 5) Water enters the catalyst bed. 6) The equipment malfunctions. 7) Improper operation.
Reasons for the increased carbon monoxide content in the transformed gas: 1. Sudden increases or decreases in operating temperature, resulting in large temperature fluctuations. 2. Excessive air velocity, resulting in overloading of production. 3. Fluctuations in steam pressure or system pressure, resulting in less steam being added. 4. Catalyst poisoning, aging, deactivation, caking, crushing and pulverization, and gas skew flow. 5. Water enters the catalyst layer, causing a significant drop in bed temperature. 6. Equipment failure. Semi-water gas is mixed into the shift gas. 7. Improper operation. If steam is not added in time or in insufficient amounts.
1. The operating temperature rises or falls suddenly, resulting in large temperature fluctuations. 2. Excessive air velocity, resulting in overloading of production. 3. Fluctuations in steam pressure or system pressure, resulting in less steam being added. 4. Catalyst poisoning, aging, deactivation, caking, crushing and pulverization, and gas skew flow. 5. Water enters the catalyst layer, causing a significant drop in bed temperature. 6. Equipment failure. Semi-water gas is mixed into the shift gas. 7. Improper operation. If steam is not added in time or in insufficient amounts. 8. Heat exchanger leakage. It causes an increase in carbon monoxide levels. 9. The water seal in the saturated hot water tower lost its function, resulting in an increase in carbon monoxide levels.
Low catalyst bed temperature, low water vapor ratio, increased space velocity, poor catalyst activity, high CO content in the water gas, and a sudden increase in gas flow rate.
1) Temperature fluctuations are large and frequent. 2) Overproduction. 3) Low steam addition rate. 4) Catalyst poisoning gas bypass. 5) Water enters the catalyst bed. 6) The equipment malfunctions. 7) Improper operation.
Reasons for the increase in carbon monoxide levels: 1. Sudden increases or decreases in operating temperature, resulting in large temperature fluctuations. 2. Excessive air velocity, resulting in overloading of production. 3. Fluctuations in steam pressure or system pressure, resulting in less steam being added. 4. Catalyst poisoning, aging, deactivation, caking, crushing and pulverization, and gas skew flow. 5. Water enters the catalyst layer, causing a significant drop in bed temperature. 6. Equipment failure. Semi-water gas is mixed into the shift gas. 7. Improper operation. If steam is not added in time or in insufficient amounts. 8. Heat exchanger leakage. It causes an increase in carbon monoxide levels. 9. The water seal in the saturated hot water tower lost its function, resulting in an increase in carbon monoxide levels.
1. The operating temperature rises or falls suddenly, resulting in large temperature fluctuations. 2. Excessive air velocity, resulting in overloading of production. 3. Fluctuations in steam pressure or system pressure, resulting in less steam being added. 4. Catalyst poisoning, aging, deactivation, caking, crushing and pulverization, and gas skew flow. 5. Water enters the catalyst layer, causing a significant drop in bed temperature. 6. Equipment failure. Semi-water gas is mixed into the shift gas. 7. Improper operation. If steam is not added in time or in insufficient amounts. 8. Heat exchanger leakage. It causes an increase in carbon monoxide levels. 9. The water seal in the saturated hot water tower lost its function, resulting in an increase in carbon monoxide levels.
Answer: 1) Large and frequent temperature fluctuations. 2) Overproduction. 3) Low steam addition rate. 4) Catalyst poisoning gas bypass. 5) Water enters the catalyst bed. 6) The equipment malfunctions. 7) Improper operation.
The reason for the extremely high carbon monoxide level at the converter outlet is a low temperature of the catalyst bed, a low water vapor ratio, an increased space velocity, poor catalyst activity, a high CO content in the water gas, and a sudden increase in gas flow rate.
1. The operating temperature rises or falls suddenly, resulting in large temperature fluctuations. 2. Excessive air velocity, resulting in overloading of production. 3. Fluctuations in steam pressure or system pressure, resulting in less steam being added. 4. Catalyst poisoning, aging, deactivation, caking, crushing and pulverization, and gas skew flow. 5. Water enters the catalyst layer, causing a significant drop in bed temperature. 6. Equipment failure. Semi-water gas is mixed into the shift gas. 7. Improper operation. If steam is not added in time or in insufficient amounts.
1) Temperature fluctuations are large and frequent. 2) Overproduction. 3) Low steam addition rate. 4) Catalyst poisoning gas bypass. 5) Water enters the catalyst bed. 6) The equipment malfunctions. 7) Improper operation.