Distillation column in full reflux operation
Thread Content
When a distillation column is operated in full reflux mode, it is generally necessary to pressurize the gas phase first, and then introduce the liquid phase material. When introducing liquid-phase materials, generally the heavier components are introduced first, followed by the lighter components (for example, liquid-phase C3 is introduced first, then liquid-phase C2). In a distillation tower under pressure, the lighter liquid-phase components are introduced first, whereas the heavier ones are introduced later – what is the difference between these two approaches? What are the hazards of introducing the light components of the liquid phase first and then the heavy components? I hope experts can give some advice. Thank you.
My personal understanding: First, introduce the reformed components, and then a heat source can be provided at the bottom of the tower. First, the light components are drawn off; then the bottom of the heating tower becomes empty.
As I understand it, under pressure-free conditions, the Reconstituted components is introduced first to create a liquid level (liquid seal) at the bottom of the tower, and then pressure is applied.