fractionating tower
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Is a higher tower pressure, higher temperature, and higher reflux rate resulting in higher yield better, or is a lower tower pressure, lower temperature, and lower reflux rate resulting in better yield?
You asked two questions. First, the vaporization rate of oil products increases at relatively high temperatures; however, increasing the tower pressure slightly lowers the boiling point. Overall, the temperature effect is greater than the pressure effect. The second one has a relatively low gasification rate at low temperatures, contains fewer light components, and its dry point is lower. I’m not sure what you mean by ‘good quality’
The level of output and the level of energy consumption!
Your question is a bit contradictory: with higher tower pressure and reflux rate, the temperature won’t be too high. To achieve a high yield of the product, one needs lower pressure and higher temperature (a higher temperature results in a corresponding reduction in reflux rate), which in turn leads to a higher product yield.
To achieve a high yield, two conditions are required: relatively high temperature and relatively low pressure. If the load on the heating furnace remains constant (compared to similar situations), only the heat exchange process can be adjusted. A higher temperature inside the tower means less heat is utilized, resulting in a reduced energy efficiency; as a consequence of these adjustments, energy consumption increases slightly.
It’s too general; for example, is your product bottom oil or reflux oil? Which maximizes energy efficiency and economy?
Of course, higher tower pressure, higher temperature, and higher reflux rate result in lower production. Lower tower pressure, lower temperature, and lower reflux rate result in higher yields.