Process gas expertise from a single source

Aerzen Process Gas GmbH is a wholly owned subsidiary of Aerzen and the specialist within the Aerzen Group for the conveying and compression of process gases. The company supports operators and plant manufacturers with tailored engineering and implements process gas solutions for industrial applications—ranging from state-of-the-art compressor technology to integrated, turnkey plant systems.

Process gas compressors are a key technology in many industrial processes, placing high demands on availability, efficiency, and process stability. As an experienced industry partner, Aerzen is intimately familiar with application-specific challenges and delivers customized system solutions for virtually all process gases, gas mixtures, applications, and industries. Global references attest to the company's high reliability in demanding operating environments.

Combined expertise for the conveying and compression of process gases

Since January 2026, the company has consolidated its process gas expertise within Aerzen Process Gas GmbH, a wholly owned subsidiary of Aerzen. The integration of Emmerthaler Apparatebau GmbH and GPE Turbo expands the service portfolio and deepens the company's technological and system capabilities. Whether blowers, compressors, or turbos; modifications and accessories; the construction of vessels, piping, and silencers; or the assembly of complete units—Aerzen Process Gas GmbH offers it all from a single source. This combined expertise and strong innovative drive reduce interface complexity, enable the seamless implementation of complex plant solutions, and shorten project lead times. All solutions are individually tailored to specific process conditions. The guiding principle: It is not the machine that dictates the process, but the process that dictates the machine.

Portfolio for the process gas industry

Aerzen blowers, compressors, and turbos combine know-how and experience derived from over 160 years of technological expertise. They stand for reliable product quality, efficiency, and process safety, as well as reduced investment and operating costs. The Aerzen Process Gas GmbH portfolio encompasses rotary lobe, screw, and turbo technologies for pressures up to 300 bar and volume flows up to 350,000 m³/h. The rotary lobe blowers achieve a differential pressure of 2 bar at a maximum operating pressure of 25 bar (abs.) and volume flows of up to 104,000 m³/h.

The screw compressors cover pressures up to 25 bar and volume flows up to 75,000 m³/h. The turbo compressors are suitable for pressures up to 300 bar and volume flows up to 350,000 m³/h. They are available in a wide range of designs, sizes, and special configurations for virtually all gases, and operate in both onshore and offshore environments. All relevant international standards, construction codes, and specifications from various industrial sectors and inspection bodies are met.

Optimized availability for the most demanding industrial applications

Aerzen process gas machines are designed for continuous operation and run for decades with minimal maintenance. They are utilized in key industrial applications, ensuring reliable and cost-effective production processes. Typical applications include the compression, conveying, recirculation, and recovery of process gases and gas mixtures, as well as pressure boosting—serving sectors such as the chemical and petrochemical industries, refineries, coking plants, steelworks, power generation, industrial gas production, refrigeration, helium cooling and liquefaction, and oil and gas transport.

Expertise in process gas applications

Whether for optimization, modernization, or new plant construction, Aerzen Process Gas GmbH represents a concentration of top-tier expertise in process gas technology and sets the standard for demanding industrial applications.