Batch Distillation Column Assignment Example | Topics and Well Written Essays - 500 words - 1

Batch Distillation Column - Assignment Example ., n, and more specifically, when i = 1 gives y1 =xo = xD The straight line in the middle is referred to as the rectifying section. It represents the linear relationship between the heavier component and the lighter component in the mixture. The step wise regions are illustrative of the number of the thermocouples present in the column. It is important to note that though the given column had four thermocouples, five are represented in the diagram. The fifth is the reboiler. While calculating, the number of trays is given as one less those that are shown in the graph. The trays offer equilibrating surfaces, allowing for the vapour and liquid phases of the components of the mixture to equilibrate. The feed line is also used in this process. When the feed is introduced at the fourth stage, it coincides with the operating lines. In the event that this does not happen, it becomes evident that the liquid being used as a feed is not saturated. This experiment exemplifies this scenario. In such a case, the McCabe-Thiele diagram becomes a simple line graph. The McCabe-Thiele diagram is usually used in calculating the number of stages that have been used in the procedure. This is usually necessary when the efficiency of the system needs to be improved. Liquid concentration samples taken at the end of the distillation period are used to work out various other functions that will be required for subsequent calculations. This process normally goes on until such a time that the compositions of obtained samples do not show any changes. This point is known as the steady state, and it is useful in analysis of how efficient the distillation has been. Near-pure samples are obtained by this