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The chemical and petrochemical industry operates under highly demanding conditions, where process reliability, safety and precise control of gases and vapours are essential. Many production stages depend on controlled pressure and vacuum environments to ensure product quality, energy efficiency and stable operation.

Processes such as evaporation, drying and distillation require technologies capable of working continuously, handling aggressive or sensitive media and maintaining consistent performance over time. In these environments, the correct selection of vacuum, compression and blower systems has a direct impact on process efficiency, operational safety and total operating costs.

At Pedro Gil, we support chemical and petrochemical plants with technologies designed to meet the specific requirements of each process. By combining vacuum systems, screw compressors and lobe blowers, we help optimise industrial operations where precision, reliability and long-term performance are critical.

Industrial processes and applied technologies

In the chemical and petrochemical industry, many production stages rely on controlled pressure and vacuum conditions to improve efficiency, protect sensitive compounds and ensure stable operation. Below are some of the key industrial processes where vacuum, screw and lobe technologies play a critical role.

Technologies typically used across these processes include:

  • Vacuum systems and screw vacuum pumps, to reduce operating pressure, stabilise vacuum levels and support solvent handling.
  • Lobe blowers, to provide stable airflow and support vapour transfer, gas movement and auxiliary duties.
  • Oil-free screw compression, where clean process air is required and contamination risks must be avoided.

Evaporation

Evaporation is widely used to concentrate solutions, remove solvents or recover valuable substances. By reducing operating pressure, vacuum enables evaporation at lower temperatures, improving energy efficiency and helping protect heat-sensitive products. In many applications, stable vacuum levels and controlled vapour handling are essential to maintain process consistency and recovery performance.

Drying

Drying processes are essential to remove moisture or solvents while maintaining product quality and consistency. Vacuum-assisted drying supports faster removal at lower temperatures, reducing thermal stress and improving overall process control. Depending on the setup, clean auxiliary process air and stable airflow can also support system performance and operating stability. 

Distillation 

Distillation is a core process in chemical and petrochemical plants, used to separate components based on boiling point differences. Vacuum distillation enables separation at lower temperatures, improving product purity, reducing energy consumption and increasing process safety. Reliable vacuum generation and stable gas/vapour movement help maintain consistent separation conditions and operational control.

Technologies applied in chemical and petrochemical processes

Chemical and petrochemical processes require technologies capable of operating under demanding conditions, handling aggressive media and maintaining stable performance over long operating cycles. The correct combination of vacuum, compression and blower systems is essential to ensure efficiency, safety and process continuity. 

Vacuum technology 

Vacuum systems play a critical role in processes such as evaporation, drying and distillation, where pressure reduction improves efficiency and protects sensitive products. By lowering operating temperatures, vacuum technology helps reduce energy consumption while maintaining precise process control.

In chemical and petrochemical applications, vacuum solutions must be robust, reliable and capable of handling vapours, solvents and process gases safely over continuous operation.

Screw compression technology

Screw compression technology is used where a stable and continuous supply of compressed air or gas is required. In chemical environments, oil-free screw compressors are especially important to avoid contamination and to ensure safe operation in sensitive or regulated processes.

Their continuous operation, low pulsation and high efficiency make screw compressors suitable for demanding industrial applications with constant or variable load profiles.

Lobe blower systems 

Lobe blowers are widely used in chemical and petrochemical processes that require high flow rates at relatively low pressure levels. They are commonly applied in vapour handling, gas transfer and auxiliary process support, where reliability and consistent airflow are essential.

Their simple and robust design allows lobe blowers to operate effectively in harsh industrial environments with minimal maintenance requirements.

Frequently asked questions about vacuum and compression in chemical processes

Vacuum technology is essential because it allows processes such as evaporation, drying and distillation to operate at lower temperatures. By reducing the boiling point of liquids, vacuum systems improve energy efficiency, protect heat-sensitive compounds and enhance overall process control and safety.

Let’s talk about your chemical process

If you are looking to optimise vacuum, compression or blower systems for your chemical or petrochemical process, our technical team can help you evaluate the best solution for your application.