Practical Exercise on Purification Technology Version [008]
Thread Content
Why is a small amount of methanol sprayed into the process gas before it enters the methanol wash? Since coil heat exchangers operate at low temperatures, if the reformate gas enters the coil heat exchanger directly and is cooled, the saturated water vapor contained in it will condense and release water; this ice formation can block the equipment and pipes. Spraying methanol can capture moisture and lower the freezing point of water, thereby preventing water from freezing and blocking the gas passages. Note: Points are awarded for answering the key points correctly! ! !
Prevent water in the process gas from freezing and blocking the heat exchanger. Injecting methanol-rich liquid can lower the freezing point of water.
Since coil heat exchangers operate at low temperatures, if the reformate gas enters the coil heat exchanger directly and is cooled, the saturated water vapor contained in it will condense and release water; this ice formation can block the equipment and pipes. Spraying methanol can capture moisture and lower the freezing point of water, thereby preventing it from freezing and causing blockages
Answer: Since E3001 operates at low temperatures, if the conversion gas enters E-3001 directly and is cooled, the saturated water vapor contained in it will condense and water will be formed; this ice will block the equipment and pipelines
A small amount of methanol is sprayed into the process gas before it enters the methanol wash unit, as the process gas contains some saturated water. As the temperature of the process gas drops, spraying a small amount of methanol is necessary to lower the freezing point and prevent water from freezing and blocking the heat exchangers.
Absorbs the water contained in the gas to prevent freezing
Since E3001 operates at low temperatures, if the conversion gas enters E-3001 directly after being cooled, the saturated water vapor contained in it will condense and water will be formed; this ice can block the equipment and pipes. Spraying methanol can capture moisture and lower the freezing point of water, thereby preventing water from freezing and blocking the gas passages.
A small amount of methanol is sprayed into the process gas before it enters the methanol wash unit, as the process gas contains some saturated water. As the temperature of the process gas drops, spraying a small amount of methanol is necessary to lower the freezing point and prevent water from freezing and blocking the heat exchangers.
Since coil heat exchangers operate at low temperatures, if the reformate gas enters the coil heat exchanger directly and is cooled, the saturated water vapor contained in it will condense and release water; this ice formation can block the equipment and pipes. Spraying methanol can capture moisture and lower the freezing point of water, thereby preventing water from freezing and blocking the gas passages.
Since coil heat exchangers operate at low temperatures, if the reformate gas enters the coil heat exchanger directly and is cooled, the saturated water vapor contained in it will condense and release water; this ice formation can block the equipment and pipes. Spraying methanol can capture moisture and lower the freezing point of water, thereby preventing water from freezing and blocking the gas passages.
Since coil heat exchangers operate at low temperatures, if the reformate gas enters the coil heat exchanger directly and is cooled, the saturated water vapor contained in it will condense and release water; this ice formation can block the equipment and pipes. Spraying methanol can capture moisture and lower the freezing point of water, thereby preventing water from freezing and blocking the gas passages.