How are the process parameters and methanol flow rates for each column section in low-temperature methanol washing determined?
Thread Content
I’m currently working on my graduation project, which involves low-temperature methanol washing. However, I can find no references online regarding the various parameters in the main washing tower, and I’m also unable to locate any methods for determining the flow rate of methanol and the circulation rate. Do any of you have relevant information? Thank you all.
Low-temperature methanol washing technology is now used in the gasification of coal chemicals. Removing carbon dioxide and hydrogen sulfide
The circulating methanol flow rate is related to the system load; the higher the load, the more methanol is required. Additionally, it is related to the cooling capacity provided by the refrigeration station; sufficient cooling capacity allows for a reduction in the methanol circulation volume.
Relationship with methanol circulation volume: higher load means larger circulation volume. Good methanol regeneration leads to a low water content in the system and sufficient cooling capacity, allowing the methanol circulation rate to be reduced appropriately; vice versa. The regeneration tower and the alcohol-water separation tower control the regeneration effect and water content, while the cooling capacity is determined by gaseous nitrogen, the refrigeration unit, and the temperature of the circulating water.