High Pressure Autoclaves

Our high-pressure autoclaves (HDA for short) are mainly used in research and production and are manufactured directly in our plant in Bad Grund according to your wishes and requirements.

The devices are built individually for you and can be produced with up to 20 bar (abs) operating pressure and an operating temperature of up to 250°C.

The HDA are available as horizontal or vertical versions. Different chamber dimensions from Ø 300 – 1.400mm and different heating systems are available.

The high pressure autoclaves are completely produced in Germany at our production plant Bad Grund. In addition to our selection of standard systems, the vessel can also be manufactured according to your wishes.

Pressure Range: 0 – 20bar
Temperature Range: 25 – 250°C
Diameter: 400 – 1400mm
Volume: 60 to 5000 litres
Fastening: Bayonetlock from Ø 500mm automatic
Material: high grade steel 1.4571/ AiSi 316 or 1.4404/AiSi316L
Standards – Certifications: 2014/68/EU & AD2000

What is the high pressure autoclave used for?
In the broadest sense, the high-pressure autoclave can also be called a reactor. Reactors of this type are used in both laboratory and pilot plant scale. It is especially used in the field of research on alternative energy sources. For example, the hydrothermal carbonization process, HTC for short, relies on the high-pressure autoclave. Here, different starting substrates, for example fermentation residues from biogas plants or biological waste, are placed in the pressure-tight high-pressure autoclave with the addition of water. Very high pressures are created inside the reactor when the autoclave is heated in a controlled manner to temperatures of up to 350°C. Due to the influences of pressure and temperature, the substrates change their chemical structure, they carbonize. Thus, a long biological process is simulated in a very short time, for example the formation of lignite or coke. This process is particularly interesting for the treatment of sludge from waste water treatment plants. The high temperature influence and the resulting pressure treatment frees the highly contaminated sewage sludge from any kind of pollutants. The sludge is literally sterilized by splitting it into its chemical components. The result is an almost sterile waste water and HTC coal that can be used as soil conditioner. The fields of application of the high-pressure autoclave are far from being fully explored. The influences of extreme pressure and the resulting high temperatures still leave a lot of room for scientific research and the resulting practical applications. In the field of hydrothermal carbonization, the high-pressure autoclave has already made its way into industrial applications.