Operations of the distillation tower?
Thread Content
The distillation tower produces three types of products: gasoline at the top, diesel from the side streams, and residue at the bottom. However, recently it seems that the amount of diesel obtained from the side streams is lower than usual, and the flow rate fluctuates despite the valve settings remaining constant; meanwhile, both the tower pressure and the temperature of the feed to the tower are stable. What could be the cause of this? Thank you. Help analyze it.
1. Uneven properties of raw materials; 2. Large fluctuations in furnace exit temperature
1. Check the flow meter. 2. Check if there are any problems with the valve. Will there be shortness of breath? 3. Check if there are any changes in the mid-section return flow rate and temperature. 4. Is the reaction section stable?
Are the extraction temperature and the reflux tank level stable?