Linking a farm model and a location optimization model for evaluating energetic and material straw valorization pathways—A case study in Baden‐Wuerttemberg

Petig, Eckart; Rudi, Andreas; Angenendt, Elisabeth; Schultmann, Frank; Bahrs, Enno

doi:10.1111/gcbb.12580

Cited by 13 publications

(8 citation statements)

References 80 publications

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“…Section 3.1) and considers a higher lignin content in the miscanthus composition of 21.4 wt.% wet based according to Butler et al (2013). Especially, lignocellulosic biorefineries require the utilization of lignin to be economically feasible (Petig et al, 2018). The goal of this high lignin content scenario is to investigate whether lignin utilization is a key factor for the economic viability of the proposed miscanthus biorefinery.…”

Section: Resultsmentioning

confidence: 99%

Processing Miscanthus to high‐value chemicals: A techno‐economic analysis based on process simulation

et al. 2022

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Thermochemical biorefineries for the production of chemicals and materials can play an important role in the bioeconomy. However, their economic viability is often questioned under the premise of the economy of scale. This paper presents a regional, modular biorefinery concept for the production of the platform chemicals hydroxymethylfurfural (HMF), furfural and phenols from the lignocellulosic perennial miscanthus, which can be cultivated on marginal and degraded areas. The paper focuses on the question of the minimum selling price of HMF and the optimal plant size for this purpose, using the region of Baden‐Württemberg, Germany, as an example. Based on small pilot plant results, a scalable process simulation was created via AspenPlus. This allows different scenarios and process combinations of this multi‐output biorefinery concept to be compared with each other. Using this, a minimum sales price for the main product HMF is calculated using methods of dynamic investment cost calculation according to the net present value method. Based on this, the plant capacity was scaled. The scenarios and sensitivity analyses show that, with an accuracy of ±15%, regional biorefineries could already offer platform chemicals at prices of 2.21–2.90 EUR/kg HMF at the current stage of development. This corresponds to three to four times the price of today's comparative fossil base chemicals and is thus a competitive option from the authors’ point of view. The local biomass and the heat prices were identified as the main influencing factors. As a result, the selection of the location will have a decisive influence on the economic viability of such concepts in the case of further development and optimization of the process in first demonstration plants.

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Section: Resultsmentioning

confidence: 99%

Processing Miscanthus to high‐value chemicals: A techno‐economic analysis based on process simulation

et al. 2022

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“…Although the important crops are integrated, crop residues as feedstock are not considered, because they are not implemented in the model linkage of ESIM and TIMES‐PanEU. However, this biomass has some potential in Baden‐Wuerttemberg (Petig, Rudi, Angenendt, Schultmann, & Bahrs, ). New crops, such as PBC, are lacking regionally differentiated yield data.…”

Section: Discussionmentioning

confidence: 99%

Downscaling of agricultural market impacts under bioeconomy development to the regional and the farm level—An example of Baden‐Wuerttemberg

et al. 2019

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The expansion of the bioeconomy sector will increase the competition for agricultural land regarding biomass production. Furthermore, the particular path of the expansion of the bioeconomy is associated with great uncertainty due to the early stage of technology development and its dependency on political framework conditions. Economic models are suitable tools to identify trade‐offs in agricultural production and address the high uncertainty of the bioeconomy expansion. We present results from the farm model Economic Farm Emission Model of four bioeconomy scenarios in order to evaluate impacts and trade‐offs of different potential bioeconomy developments and the corresponding uncertainty at regional and farm level in Baden‐Wuerttemberg, Germany. The demand‐side effects of the bioeconomy scenarios are based on downscaling European Union level results of a separate model linkage between an agricultural sector and an energy sector model. The general model results show that the expanded use of agricultural land for the bioeconomy sector, especially for the cultivation of perennial biomass crops (PBC), reduces biomass production for established value chains, especially for food and feed. The results also show differences between regions and farm types in Baden‐Wuerttemberg. Fertile arable regions and arable farms profit more from the expanded use of biomass in the bioeconomy than farms that focus on cattle farming. Latter farms use the arable land to produce feed for the cattle, whereas arable farms can expand feedstock production for new value chains. Additionally, less intensive production systems like extensive grassland suffer from economic losses, whereas the competition in fertile regions further increases. Hence, if the extensive production systems are to be preserved, appropriate subsidies must be provided. This emphasizes the relevance of downscaling aggregated model results to higher spatial resolution, even as far as to the decision maker (farm), to identify possible contradicting effects of the bioeconomy as well as policy implications.

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“…For this purpose, they assessed farmers' willingness to engage in PBC production and developed related regional supply functions. Petig, Rudi, Angenendt, Schultmann, and Bahrs () present the linkage of an agricultural sector model and an agricultural farm model for the evaluation of the straw‐to‐energy and the innovative straw‐to‐chemicals value chains in Baden‐Württemberg that takes the spatial distribution and price‐sensitive nature of straw supply into account. The results reveal the trade‐off between economies of scale in the energy production plants and biorefineries on the one hand and the feedstock supply costs on the other hand.…”

Section: Lignocellulose and Modelling Sectionsmentioning

confidence: 99%

Biobased value chains for a growing bioeconomy

Lewandowski¹,

Bahrs²,

Dahmen³

et al. 2019

GCB Bioenergy

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This special issue covers three important fields of the bioeconomy: sustainable biogas value chains, bio‐based products from lignocellulose, and the use of microalgae as a biomass resource and for the production of food and feed. In order to develop sustainable products and processes, an interdisciplinary systemic approach to the analysis of entire value chains is necessary. For this reason, the contributions cover aspects of the complete biobased value chain from biomass production, pretreatment, and conversion, through to the manufacture and marketing of biobased products, and in addition, include socio‐economic and ecological assessments.

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Linking a farm model and a location optimization model for evaluating energetic and material straw valorization pathways—A case study in Baden‐Wuerttemberg

Cited by 13 publications

References 80 publications

Processing Miscanthus to high‐value chemicals: A techno‐economic analysis based on process simulation

Processing Miscanthus to high‐value chemicals: A techno‐economic analysis based on process simulation

Downscaling of agricultural market impacts under bioeconomy development to the regional and the farm level—An example of Baden‐Wuerttemberg

Biobased value chains for a growing bioeconomy

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