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Columns

Stalwart International is one of the leading manufacturers, exporters and suppliers of industrial columns in India.

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What are Columns?

Industrial columns play a crucial role in factories that undertake various processes like vapourization, distillation, packed bed absorption and fractionation.

These cylindrical vessels are designed to conduct the separation and purification of different components in a mixture, depending on their boiling points and other physical properties.

Vapour distillation column manufacturers and suppliers in India make columns that are widely used across various industries like chemical, petrochemicals, oil refining and more.

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Vapour Distillation Column

Distillation is a process of separation that involves heating up a liquid mixture to vaporise its components, following which the vapour is cooled and condensed to collect the separated components.

Vapour distillation column manufacturers make this type of equipment, which is used to separate liquid mixtures into a fraction of their components, based on the difference in their volatilities. These tall, cylindrical vessels enable the process of distillation, where a liquid is heated to generate vapour, following which the vapour is cooled and condensed to separate components that have differing boiling points.

Vapour distillation column manufacturers & suppliers in India equip these columns with trays to provide a large surface area for liquid-vapour interaction. The components that have a higher boiling point condense and collect at the bottom of the column, while the components with a lower boiling point condense at the top. This is how the distillation column aids in the separation of components with different boiling points.

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The effectiveness of a vapour column depends on several factors, including the design of the column, packing material, temperature and flow rates. Various kinds of packing materials are used by vapour distillation column manufacturers to provide a large surface area for liquid-vapour interaction, which helps to separate the components better.

Distillation columns have a wide range of applications, the most common ones being in the refining of crude oil to produce diesel, gasoline or jet fuel in the petroleum and petrochemical industry. In the chemical industry industry, they help to separate and purify different compounds. They are also used in the production of pharmaceuticals, alcohol and essential oil.

Stalwart International is one of the best vapour distillation column manufacturers in India. Contact us to get columns designed and customised as per your requirements.

Packed Column

Packed columns are very commonly used in the field of chemical manufacturing to facilitate various separation processes. These towers are filled with packing material which provides a large surface area for contact between liquid and vapour phases. They play a crucial role in a range of applications, from packed bed absorption or packed column distillation and stripping to gas-liquid reactions.

A packed tower is used in distillation applications to separate components in a mixture of liquids, based on their boiling points. The liquid mixture is poured into the packed tower and heated to generate vapour. As this vapour rises through the packing material, it comes in contact with the descending liquid, allowing mass transfer between them.

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This type of column is also used in absorption and stripping processes. In the packed bed absorption procedure, a gas stream is passed through the column where certain components are absorbed into the flowing liquid. However, in the stripping procedure, components are transferred from liquid to gas. These methods are usually used to purify gas & remove pollutants.


Packed columns enable gas-liquid reactions by providing an interface between the two phases. This facilitates chemical reactions between gas and liquid reactants, allowing efficient contact and mixing.


There are two column packing types in a packed tower. These column packing types are namely -


  1. Random packing: This is one of the 2 column packing types where packing materials are randomly distributed to create a large surface area and minimise pressure drop.
  2. Structured packing: This is one of the 2 column packing types which uses larger, fixed packing structures to distribute liquids through complex channels into a certain shape.

Thus, packed columns use these column packing types to function effectively.

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There are several advantages to using a packed tower in comparison to other variants. They come with a higher capacity and efficiency, lower pressure drop and are less susceptible to fouling. Owing to this, scaling up for large scale industrial applications is also easier with a packed tower.

These types of columns are used extensively in industrial applications such as in chromatography, petrochemicals, pharmaceuticals and chemical processing. They are considered versatile tools in modern industrial processes as they produce a wide variety of products and purify numerous substances.

Stalwart International is a packed column exporter in India that offers installation and maintenance services.

Trusted by Industry Leaders

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Why choose Stalwart International

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500+ successful projects completed
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Employees strength of 200+
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43+ Years of experience
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ASME ‘U’ stamp, ‘R’ stamp, ‘CE’ & 'ISO Certified'.
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Worked in 14 countries across 4 continents
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Manufacturing Designing Commissioning
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We have purchased from Stalwart International more than 100 stainless steel equipment for our project at Ankleshwar. They are technically sound. Our deal with the vendor is quite smooth.

Raj Kumar

Manager, Alkem Ltd.

Stalwart International is our approved vendor for Chemical & Pharmaceutical Process Plant & Equipment. We have been procuring mainly Stainless Steel Process Equipment from them since long.

Satish Shah

G.M. - Projects, Calyx Chemicals & Pharmaceuticals Ltd.

We have been procuring Plant equipment from Stalwart International for last more than 10 years. They manufacture standard equipment having good workmanship and finishing.

Ulhas Dewal

Director, Ashu Organics (I) Pvt Ltd.

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FAQ & Updates

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What is a vapour column?
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Vapour columns, or distillation or fractional columns, are vertical vessels used in chemical, petrochemical, and oil refining industries to separate liquid mixtures based on their boiling points.
What are the factors that affect the effectiveness of the vapour distillation column?
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Column design, packing material, temperature, and flow rates are different factors that affect the vapour distillation column operation efficiency.
What are packed columns used in chemical manufacturing?
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Packed columns facilitate different separation processes and play an important role in a range of applications, like packed bed absorption or packed column distillation and stripping and gas-liquid reactions.
What are the two types of column packing in packed towers?
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There are mainly two types of column packing: Random Packing - In this type of packing, the packing materials are randomly distributed to create a large surface area and minimise pressure drop. Structured Packing - Structured packing uses a larger, fixed packing structure to distribute liquids through complicated channels into a certain shape.
In which industries packed columns are utilised?
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Packed columns come with a set of advantages, like increased capacity, enhanced efficiency, reduced pressure drop, and minimised fouling. With the ability to easily scale up for large industrial processes, the packed column equipment finds application in different processes, like chromatography, petrochemical, and chemical processing.

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Leaders of cutting-edge process equipment for diverse global sectors - manufactured and designed in India.

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