Conference paper

Publication year: 2017

Pages: 86-95

Journal: Anaerobe

Volume number: 46

ISSN: 1075-9964

eISSN: 1095-8274

Open access status: Hybrid

DOI Link: https://doi.org/10.1016/j.anaerobe.2017.03.010

Conference: Biogas Science Conference

Publisher: Elsevier

Abstract: 
For future energy supply systems with high proportions from renewable energy sources, biogas plants are a promising option to supply demand-driven electricity to compensate the divergence between energy demand and energy supply by uncontrolled sources like wind and solar. Apart expanding gas storage capacity a demand-oriented feeding with the aim of flexible gas production can be an effective alternative. The presented study demonstrated a high degree of intraday flexibility (up to 50% compared to the average) and a potential for an electricity shutdown of up to 3 days (decreasing gas production by more than 60%) by flexible feeding in full-scale. Furthermore, the long-term process stability was not affected negatively due to the flexible feeding. The flexible feeding resulted in a variable rate of gas production and a dynamic progression of individual acids and the respective pH-value. In consequence, a demand-driven biogas production may enable significant savings in terms of the required gas storage volume (up to 65%) and permit far greater plant flexibility compared to constant gas production. (C) 2017 The Authors. Published by Elsevier Ltd.

Harvard Citation style: Mauky, E., Weinrich, S., Jacobi, H., Naegele, H., Liebetrau, J. and Nelles, M. (2017) Demand-driven biogas production by flexible feeding in full-scale - Process stability and flexibility potentials, Anaerobe, 46, pp. 86-95. https://doi.org/10.1016/j.anaerobe.2017.03.010

APA Citation style: Mauky, E., Weinrich, S., Jacobi, H., Naegele, H., Liebetrau, J., & Nelles, M. (2017). Demand-driven biogas production by flexible feeding in full-scale - Process stability and flexibility potentials. Anaerobe. 46, 86-95. https://doi.org/10.1016/j.anaerobe.2017.03.010