Abstract：
:This paper analyses concepts to facilitate a demand oriented biogas supply at an agricultural biogas plant of a capacity of 500kWhel, operated with the co-digestion of maize, grass, rye silage and chicken manure. In contrast to previous studies, environmental impacts of flexible and the traditional baseload operation are compared. Life Cycle Assessment (LCA) was performed to detect the environmental impacts of: (i) variety of feedstock co-digestion scenarios by substitution of maize and (ii) loading rate scenarios with a focus on flexible feedstock utilization. Demand-driven biogas production is critical for an overall balanced power supply to the electrical grid. It results in lower amounts of emissions; feedstock loading rate scenarios resulted in 48%, 20%, 11% lower global warming (GWP), acidification (AP) and eutrophication potentials, and a 16% higher cumulative energy demand. Substitution of maize with biogenic-waste regarding to feedstock substitution scenarios could create 10% lower GWP and AP.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Ertem FC,Martínez-Blanco J,Finkbeiner M,Neubauer P,Junne Sdoi
10.1016/j.biortech.2016.07.123subject
Has Abstractpub_date
2016-11-01 00:00:00pages
536-544eissn
0960-8524issn
1873-2976pii
S0960-8524(16)31103-8journal_volume
219pub_type
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