OBeG is continuously attempting to optimize the techniques for the production of biofuels.
This area covers the bioalchohols, biohydrogen and biomethane.
Our group is investigating all aspects of biofuels production from pretreatment of the biomass, microbial degradation of the biomass to yield enhancement.
In a biogas plant, organic substance undergoes anaerobic degradation by bacteria in the biogas fermenter, i.e. it is broken down by bacteria in an oxygen free environment. Various strains of microorganisms break down the organic substrates. At the end of this microbial food chain, biogas is generated as a metabolite. The major constituents of biogas are 50 to 70 % methane, with the remainder being mainly carbon dioxide. The production of biomethane to replace oil and natural gas is in active development around the world and is focusing on the use of cheap organic matter (such as cellulose and hemicellulose, agricultural and sewage waste) in the production of biomethane.
By feeding biohydrogen into the biogas fermenter, CO2 reductions occur because the methane bacteria converts hydrogen and carbon dioxide into methane. This improves the quality and yield of biogas for feeding into the gas network. Biomasses that serve as raw material for the biogas production require CO2 to grow. Thus a closed CO2 circle is created where much of the CO2 released from an automobile engine burning a biogas is recaptured from the atmosphere for the growth of new biomass.