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Distillation with Vacuum

Vacuum distillation. A technique used to gently separate compounds from a liquid. By lowering their boiling point with the help of vacuum.

Distillation with Vacuum

How does vacuum distillation work?

Vacuum distillation is an important process in the chemical and pharmaceutical industry. But it is employed in many other sectors, too. For example, in beverage and food production to extract plant essences. Or to separate long-chain hydrocarbons in oil refineries.

Distillation is commonly used to separate the components of a liquid mixture. As the liquid components have different boiling points, they evaporate under different operating conditions. And may be removed and recovered successively.

The boiling point of the substances to be separated is lower under vacuum.
Vacuum distillation is therefore the process of choice if the compounds to be separated normally have a high boiling point or are explosive. And allows for separation of substances that would decompose at higher temperatures.

Busch vacuum technology in distillation

For use in distillation processes, we offer a wide range of vapor-tolerant, corrosion-free vacuum solutions. As well as ATEX versions to deal with flammable vapors, gases and liquids. Thanks to our global network, we can also comply with other local explosion protection regulations. Such as Ex-Proof, KOSHA, etc.

Vacuum distillation in chemical and pharmaceutical industry

Vacuum distillation in chemical and pharmaceutical industry

Getting pure compounds is the goal of many processes in the chemical and pharmaceutical industry. One of the most commonly used techniques to extract compounds of interest from the reaction mixture is distillation.

Carrying out distillation under vacuum allows for a gentler treatment of heat-sensitive compounds. Thanks to lower process temperatures, the yield of the distillation process can be improved by preventing polymerization, cracking or other product degradation. And significant energy savings can be achieved.

Vacuum distillation is therefore the perfect choice for a wide range of separation processes in the chemical and pharmaceutical industry. From Active Pharmaceutical Ingredient (API) manufacturing or monomer purification to natural compound extraction. As well as for chemical synthesis, the preparation of flavors and aromas and many more.

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Vacuum distillation in the oil and gas industry

Vacuum distillation in the oil and gas industry

Crude Oil Distillation

In order to produce petrol, diesel, aviation fuel or heating oil, crude oil must be broken down into its components. This process takes place in oil refineries by means of distillation. As crude oil contains heavier and lighter hydrocarbons with different boiling points, two distillation processes are necessary.

After atmospheric distillation, a second distillation is carried out under vacuum. To separate heavy hydrocarbons at only slightly higher temperatures. This minimizes cracking of components and the creation of unwanted by-products.

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One of our implemented vacuum distillation systems

One of our implemented vacuum distillation systems

Challenging requirements

  • Large volume flow
  • Working pressure of 8 mbar

Our solution
  • 2 stages of vacuum boosters with intercondenser

Products inside the vacuum system

Learn more about vacuum distillation

  • High-Quality Essential Oils and Essences Thanks to Vacuum Distillation

    High-Quality Essential Oils and Essences Thanks to Vacuum Distillation

    Learn more