As the light components in the tower feed increase, should the heating steam be increased or decreased?
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If the light components in the feed material increase (while the feed volume remains constant), the cooling load on the top tower increases, resulting in an rise in tower pressure. Should more steam be added, or less?
Does the light component cause the tower pressure to rise, meaning that steam needs to be added later?
Does the light component cause the tower pressure to rise, meaning that steam needs to be added later?
To ensure the quality of the material at the bottom of the tower, steam needs to be added; otherwise, the light components will fall to the bottom of the tower and affect product quality. If the cooling load at the top of the tower is insufficient, the pressure can be reduced by releasing gas
It’s not possible to simply decide whether to add some steam or reduce it. If the feed temperature remains stable, an increase in the light component content indicates that the gasification rate of the feed has increased, thereby increasing the enthalpy brought in by the feed. At this point, it is not necessary to increase the amount of steam at the bottom of the tower; in fact, the amount of steam should be reduced slightly. At the same time, increase the load on the condenser at the top of the tower.
If the cooling load at the top of the tower remains constant, then as the proportion of light components increases, the tower pressure will inevitably rise; so how should the heating steam supplied to the tower be adjusted?
In this case, the heating steam at the bottom of the tower definitely needs to be reduced.
With the feed rate remaining unchanged, the tower pressure has increased, posing a safety risk; therefore, it is necessary to reduce the amount of steam used. In fact, the feed rate can also be adjusted in order to control the tower pressure
The feed flow rate cannot be adjusted arbitrarily, otherwise there will be an imbalance