The biogas handbook: Science, production and applications by Arthur Wellinger, Jerry D Murphy, David Baxter

By Arthur Wellinger, Jerry D Murphy, David Baxter

With expanding pressures to make use of wastes successfully and sustainably, biogas creation represents essentially the most very important routes in the direction of attaining renewable power ambitions. This complete reference at the improvement and deployment of biogas provide chains and know-how stories the position of biogas within the power combine and descriptions the diversity of biomass and waste assets for biogas creation. members offer precise insurance of anaerobic digestion for the creation of biogas and evaluate the usage of biogas for numerous functions.

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It will not do, for example, to subsidize the most cost-effective renewable energies with low resources and not to use the more expensive ones with large resources as this may prevent the quantitative target to be met and power will not be available when it is needed. Therefore, the urgent need is for a mechanism that, while making fullest use of the available quantity potential, also takes care that electricity, heat and transport fuel are supplied in accordance with demand. So far, no mechanism that would meet all these requirements is known.

The possibility of using very different substrates in biogas plants makes biogas a particularly interesting source of renewable energy. However, this also makes the design of a successful support framework much more complicated than in the case of other renewable energy sources. There is not only a wide variety of feedstocks, but there are also as many potential utilizations of the product: transport fuel, heat only, or combined electricity and heat. Furthermore, there is the question of whether the gas network infrastructure should be used for biogas as well.

For this reason, biogas plants operating in cogeneration mode and achieving a high degree of heat utilization have a better life cycle assessment than biogas plants where the gas is only converted to heat or plants whose gas is upgraded to biomethane as fuel (Bachmaier et al. 2009). A similar analysis may be undertaken for the use of biomethane as a transport fuel with petrol or diesel as the displaced fuel (Korres et al. 2010). A positive life cycle assessment is a priority target of any biogas plant.

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