Power-to-gas
Biological Methanation

BiON™ Technology—synthetic methane from CO₂ and H₂

Visual biological methanation
Introduction

Our BiON™ biological methanation technology uses special microorganisms to metabolise hydrogen and carbon dioxide into methane. This anaerobic process can be operated very dynamically and is highly robust when it comes to handling impurities in the raw gas. The system retains its dynamics in on-off mode: a rapid restart is easy after a shutdown. With our biological expertise, we’re able to use anaerobic substrates to create process conditions under which the microorganisms can achieve optimum performance without the need for high levels of additives or complex dosing technology. Modelled on nature, the process works best at moderate temperatures of 65°C and can withstand pressures of 5 to 10 bar without any problems.

The cubic geometry of the continuous stirred-tank reactor (CSTR) makes it easier to maintain the temperature in standby mode. This means less expenditure on insulation and heating. The system is designed to allow easy access for inspection, maintenance, and service.

Advantages

  • It produces high-quality methane at high efficiency.

  • It features an advanced, efficient, and robustly designed reactor geometry.

  • The system allows flexible start-stop operation

Technology scheme of the biological methanation

Scheme_Biological_Methanation_EN
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