Agroforestry residues potentials for the European Bioeconomy - Bio4Products
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Agroforestry residues potentials for the European Bioeconomy Moving towards a competitive European Bioeconomy: Emerging biorefinery technologies & pathways to deployment Funded by European Union's Horizon 2020 research and innovation programme under grant agreement No 723670, with the title “Systemic approach to reduce energy demand and Lars Wietschel, Andrea Thorenz & Axel Tuma CO2 emissions of processes that transform agroforestry waste into high added value products (REHAP) February 17th, 2021
Motivation „The free energy to which man can have access comes from two distinct sources. The first source is a stock, the stock of free energy of the mineral deposits in the bowels of the earth. The second source is a flow, the flow of solar radiation intercepted by the earth.“ Georgescu Roegen 2 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy
Motivation 1,E+09 • Low density and economic 1,E+08 value of lignocellulose 1,E+07 renders feedstock logistics 1,E+06 Price in EURO challenging 1,E+05 • Disproportionately increasing 1,E+04 1,E+03 feedstock transportation cost 1,E+02 for large biorefineries 1,E+01 • Privileged demand for 1,E+00 lignocellulose residues Price per t Price per m3 → Need for explicit consideration of regionality of feedstock supply in bioeconomic value chains 3 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy
Assessment of agroforestry residue potentials Which are the most abundant lignocellulose residues in the EU? for the bioeconomy in the European Union J. of Cleaner Production 2018 Where are the lignocellulose residues regionally distributed Spatially explicit forecast of feedstock potentials for = ß0 + ß1 1. . What are the underlying variables determining the future second generation bioconversion industry from the development of agricultural harvesting residues? EU agricultural sector until the year 2030 How will the theoretical, technical, and bioeconomic potential of J. of Cleaner Production 2019 agricultural residues develop in the EU28 until 2030? Environmental benefits of large-scale second- What is the optimal supply chain network design under economic and generation bioethanol production in the EU: environmental objective functions. An integrated supply chain network optimization and Life Cycle Assessment approach Which environmental objectives are congruent, and which are conflicting in bioeconomic value chains J. of Ind. Ecology 2020 German Federal Government, 2012
Assessment of agroforestry residue potentials Primary product/ Grain Total biomass = whole plant Theoretical potential = total residues Total biomass Issues of law, sustainability & Refining technology residues Theoretical Technical potential = theoretical potential – issues Competing potential application of law, sustainability & technological limitations (of residues) Technical potential Bioeconomic potential Bioeconomic potential = technical potential - competing application Agricultural sector Forestry sector Grain Prioritized application Industrial roundwood Prioritized application Crop Tree Harvesting Harvesting Theoretical Technical Bioeconomic Theoretical Technical Bioeconomic potential potential potential potential potential potential 5 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy http://clipart-library.com/clipart/33014.htm http://clipart-library.com/clipart/1265671.htm http://clipart-library.com/clipart/2051089.htm
Assessment of agroforestry residue potentials Forestry Agriculture Spruce and pine bark with appr. 100% Approx. 110 Mt of bioeconomic straw Sunflower Straw 15 Mt bioeconomic potential Hemp Hurds potential 90% Flax Shives Wheat Straw Rapeseed Straw Barley Straw Concentration of focal substances Oats Straw Maize Stover 80% Rice Straw Triticale Straw Cellulose ~ 25 % Cellulose ~ 35% Coniferous Bark 70% Rye Straw Hemicellulose ~ 10 % Hemicellulose ~ 30 % Sorghum Straw Lignin ~ 30 % Broadleaf Bark Lignin ~ 15 % 60% Cotton Stalk Tannin 8 – 12 % 50% Additionally a Soybean Straw Wheat straw is the considerable 40% most promising source Sugar Beet Pulp amount of at 46 Mt extractable tannin 30% Maize stover (31 Mt) Average annual Theoretical Potential EU-28 (1000 t d.m.) Barley straw (16 Mt) Cereal Oil Crop Legume Sugar crop Fibre plant Bark Rapeseed straw (14 Mt) 6 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy |Source: Thorenz et al., 2018
Assessment of agroforestry residue potentials Regionalized annual bioeconomic potential (in 2018) Identification and analysis of underlying variables & consideration of market forecasts → Time series and literature based forecast of the most important agricultural residues in the EU until 2030 7 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy |Source: Wietschel et al., 2019
Forecasting of agroforestry residue potentials Bioeconomic Potential wheat straw Bioeconomic Potential rapeseed straw 10.000 3.000 500 8.000 2.500 400 2.000 6.000 300 1.500 kt kt kt 4.000 200 1.000 2.000 500 100 0 0 0 2.000 120 100 1.500 80 60 kt 1.000 kt 40 500 20 0 2.250 0 1.500 2.000 1.250 1.750 1.000 1.500 750 kt kt 1.250 500 1.000 750 250 500 0 • Slightly increasing wheat & maize straw potentials, stable barley straw and decreasing rapeseed straw potential • Weather events regularly lead to supply disruptions. Climate change might increases probability of disruptions 8 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy |Source: Wietschel et al., 2019
Bioeconomic supply chain network design Bioeconomic supply network planning based on regionalized feedstock potential – case of EtOH Single-objective optimization results Multi-objective optimization results Environmental and economical efficient production and Pareto-optimization between two objectives (by distribution network for second-generation bioethanol in ε-constraint method) to find optimal tradeoffs between the EU: economic and environmental dimension: • Decentralized supply network: sustainable feedstock potentials are site-specific/low distances feedstock sourcing • Results largely depend on selected objective function: different environmental objectives can be conflictory 9 18.02.2021 Lars Wietschel | Moving towards a competitive European Bioeconomy |Source: Wietschel et al., 2020
Thank you for your attention! Lars Wietschel Resource Lab / Chair of Production and Supply Chain Management https://www.resource-lab.de/ University of Augsburg, Germany @ lars.wietschel@uni-a.de https://www.researchgate.net/profile/Lars_Wietschel
You can also read
