Divided Wall Distillation Column

 Divided wall distillation column is a type of distillation column that is used to separate a mixture into its individual components. This technology was first proposed by Smidt in 1932 and has been widely used in the chemical industry since the 1980s. In this blog, we will discuss what a divided wall distillation column is, how it works, and its advantages.

What is a Divided Wall Distillation Column?

A divided wall distillation column is a modified version of a conventional distillation column. It has vertical cylindrical shape and is made up of multiple trays. The key difference between a divided wall distillation column and a conventional distillation column is that the former has a vertical wall that separates the column into two or more sections.

How Does it Work?

A divided wall distillation column works on the principle of fractional distillation. It separates a mixture into its individual components based on their boiling points. The mixture is fed into the column from the bottom and heated. As the mixture heats up, it starts to evaporate and rise up the column. The rising vapors are then condensed on the trays above and the condensed liquid flows back down to the bottom of the column. This process is repeated until the desired level of separation is achieved.

The presence of the dividing wall in the column allows for multiple distillations to occur simultaneously. This means that multiple products can be produced from a single feed stream, which can be more efficient and cost-effective than using multiple conventional distillation columns.

Advantages of Divided Wall Distillation Column

1. Energy Efficiency: Divided wall distillation columns are more energy-efficient than conventional distillation columns. They require less energy to operate because they can perform multiple distillations in a single column, which reduces the amount of heat required.

2. Cost-Effective: Divided wall distillation columns are cost-effective because they require less equipment than conventional distillation columns. This means that they take up less space, are easier to maintain, and require fewer resources to operate.

3. High Purity: Divided wall distillation columns can produce high-purity products because they can perform multiple distillations simultaneously. This means that they can separate complex mixtures into their individual components with high precision.

4. Environmental Benefits: Divided wall distillation columns can reduce environmental impact by reducing the amount of energy required to produce chemicals. This means that they can help companies reduce their carbon footprint and become more sustainable.

Conclusion

Divided wall distillation column is a highly efficient and cost-effective technology that is widely used in the chemical industry. It allows for multiple distillations to occur simultaneously, which reduces the amount of energy required and improves the overall efficiency of the process. This technology has the potential to revolutionize the chemical industry by improving efficiency, reducing costs, and minimizing environmental impact.



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