Purification Technology Edition: Daily Question [October 12, 2017]
Thread Content
The lower the methanol content in the wastewater at the bottom of the methanol-water separation tower, the better? Right? Why? Answer: No. This is because the lower the methanol content, the higher the bottom temperature, which increases the thermal load on the tower and leads to an increase in the water content in the gas phase at the top. This water is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol-water separation tower.
No, because the lower the methanol content, the higher the temperature at the bottom; this increases the thermal load on the tower, resulting in an increase in the water content in the gas phase at the top. This water is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol-water separation tower.
No, because the lower the methanol content, the higher the bottom temperature becomes. This increases the thermal load on the tower, resulting in an increase in the H2O content in the vapor at the top of the tower. This water is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol water separation tower.
No, because the lower the methanol content, the higher the temperature at the bottom; this increases the thermal load on the tower, resulting in an increase in the water content in the gas phase at the top. This water is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol-water separation tower.
No, because the lower the methanol content, the higher the bottom temperature becomes. This increases the thermal load on the tower, resulting in an increase in the H2O content in the vapor at the top of the tower. This moisture is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol water separation tower.
No, the lower the methanol content in the wastewater at the bottom of the tower, the higher the energy consumption of the tower, which may prove to be counterproductive.
No. This is because the lower the methanol content, the higher the bottom temperature; as a result, the thermal load on the tower increases, leading to an increase in the water content in the top gas chamber. This water is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol-water separation tower.
The key operating parameters for the methanol-water separation tower are temperature and pressure. When the methanol content in the wastewater is low, a higher temperature at the bottom of the tower is required, which results in an excessive water content in the methanol vapor at the top of the tower. So it’s not the case that the lower the methanol content in wastewater, the better.
No, the key operating parameters for a methanol-water separation tower are temperature and pressure. When the methanol content in the wastewater is low, a higher temperature at the bottom of the tower is required, which results in an excessive water content in the methanol vapor at the top of the tower. So it’s not the case that the lower the methanol content in wastewater, the better.
No, because the lower the methanol content, the higher the bottom temperature becomes. This increases the thermal load on the tower, leading to an increase in the water content in the gas phase at the top. This water is then reintroduced into the circulating methanol, reducing the dehydration capacity of the methanol-water separation tower.
Yes. Low methanol content; more methanol at the top extraction point