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Steam Distillation Method for Component Separation

Leave a Comment / Process Engineering / K Mehra

In chemical process industries, we can find the use of steam distillation method for many services. Mainly, we use this technique where we want to distil the components form high boiling point mixtures or altogether non-volatile salt solutions. For example, recovery of 2-chloropyridine from neutralized solution containing pyridine, NaCl and water. Moreover, steam distillation become […]

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Extractive Distillation Method for Azeotropes

Leave a Comment / Process Engineering / K Mehra

In chemical process industries we can face two types of mixture. First, where purity of more volatile components by simple distillation does not take place after a certain concentration. And, in second category it takes place so slowly that an uneconomic number of plates is required. So, to separate these types of mixtures we use

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Process Simulation of Anhydrous Alcohol Plant

Leave a Comment / Process Engineering / K Mehra

As we know ethanol and water forms azeotropes and it is not possible to produce anhydrous alcohol by simple distillation process. So, due to this azeotrope formation we can purify ethanol up to 89 mole% only. Therefore, to get anhydrous alcohol we require different techniques like hydrophilic molecular sieves or azeotropic distillation. In this article

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Azeotropic Distillation Process for Ethanol Dehydration

Leave a Comment / Process Engineering / K Mehra

In chemical process industries, we come across certain mixtures where separation is impossible or difficult by simple distillation. This type of mixtures we know by the name of azeotropic mixture. Other than this, if relative volatility of the mixture is close to 1.0, in the cases when components boiling points are very close, then also

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Process Data Sheet – Shell & Tube Heat Exchanger

2 Comments / Process Engineering / K Mehra

As we all know shell & tube heat exchanger is the equipment, which we use to exchange heat between two streams available at different temperature. In this type of exchanger, one side we know as shell side and other we call the tube side. In a heat exchanger heat transfer between streams can be of

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Process Data Sheet – Agitated Reactor

Leave a Comment / Process Engineering / K Mehra

Agitated Reactors are most widely used reactors in our Chemical Process Industries. We can operate this reactor in batch, semi-batch and continuous mode. When we use this reactor in continuous mode is also know as CSTR or continuous stirred tank reactor. However, we use these reactors mostly in batch & semi-batch operations for the production

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Data Sheets for Distillation Column

Leave a Comment / Process Engineering / K Mehra

In chemical process industries we can see various types of columns. We use these columns for different unit operations like distillation, absorption, stripping, extraction and reaction also. Any column is a vertical cylindrical vessel having internals inside to enhance the contact surface area between phases. These phases can be liquid-gas, liquid-vapor, liquid-liquid. During process design

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Vessel Specification Sheet (PDS)

Leave a Comment / Process Engineering / K Mehra

In chemical process industries we use vessels for handling fluids. This fluid can be liquid, solid, gas or combination of these. We need vessels for many purposes like, feeding or dozing, holding the material, collection of material, separation of the material, etc. Based on the process requirements the geometry and orientation of these vessels can

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Ethanol Distillation (Rectified Sprit) in Distillery

6 Comments / Industry / K Mehra

In a distillery, we use two distillation columns in series for ethanol distillation from fermented wash. First column is Analyzer Column and second one is Rectifier Column. We get final product from top of the Rectifier Column, which is an azeotropic mixture of ethanol and water. This final product is also known by the name

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