Renewable energy is gaining importance - primarily generated from locally available biomass resources.

The CTU-Biogas-process is particularly suitable for:

• segregated biodegradable waste and garden waste
• liquid organic waste from agriculture and industries
• Biological fraction from mechanical-biological waste treatment plants
• renewable raw materials and energy crops

 
The Methanation of Wood gas (MoW)-process generates a high quality Bio-SNG (Synthetic Natural Gas from biomass) from

• Wood and
• wood-like materials

An existing natural gas grid can be used for transport and storage.

The concept of the CTU Biogas procedure is based on a reasonable use of various anaerobic digestion methods, selected as per the substrate to be digested.

CTU provides thermophilic dry fermentation solutions in a horizontal plug flow fermenter, reliable wet fermentation and a combination of both.

The advantages of the CTU technology include:

• high specific gas yield
• compact and modular design
• optimal processing of digestate into compost thanks to the use of thermophilic process conditions (hygienisation of the biomass)
• processing of liquid residue in to drinking water quality and  concentrated liquid fertilizer

and further:

• high bioavailability due to optimal process design with low retention time
• low maintenance costs through avoidance of  wear-parts and sedimentation within the fermenter
• guaranteed technical availability
• many years of operating experience and well engineered technology

to Biogas-production in application

The methanation process uses a fluidized bed gasifier to convert wood to a wood (synthesis) gas with low nitrogen content. The wood gas is then purified to separate sulphurous compounds and heavier tar. The main constituents of the purified gases (hydrogen und carbon monoxide) are then converted to methane in a catalytic fluidized bed reactor (methanation).

Carbon dioxide, hydrogen and water vapor are released from the resulting gas mixture. The gas is upgraded to produce Bio-SNG (Synthetic Natural Gas) replacing fossil fuel in the gas grid. Carbon dioxide can be recovered and sold, excess hydrogen is recycled.

By upgrading the quality of generated gas to that of (fossil) natural gas, Biogas und Bio-SNG can be injected into the local natural gas grid.

By upgrading the quality of generated gas to that of (fossil) natural gas, Biogas und Bio-SNG can be injected into the local natural gas grid. Biogas and Bio-SNG can also be used in a natural gas filling stations (to fuel CNG vehicles). Biogas can also fuel co-generation plants to generate electricity and heat in high yield. These products can be fed into the energy grid or the district heating system.

to MoW-process in application