About the project
Traditional bioenergy supply chains design considers a centralized facility around which the biomass is collected. In the centralized supply chain design the benefits from economies of scale are counterbalanced by rising upstream transport costs as a higher scale requires a larger feedstock collection radius. Distributed supply chains configurations (i.e. including a pre-treatment step in which the biomass is densified) are often proposed to reduce the upstream transportation costs. It is hypothesized that such configuration allows for further upscaling and can hence decrease bioenergy production costs, particularly when using liquefaction technologies which are able to convert biomass into a transportable biocrude with a much high energy and bulk density compared to biomass.
This project has explored the preconditions under which distributed supply chain configurations (based on hydrothermal liquefaction, HTL) are preferred over centralized supply chains. A spatially explicit optimization model based on Swedish data on biomass supply and price, intermodal transport infrastructure, competing demand, and potential conversion sites (including integration benefits) was evaluated at different biofuel demands.
It was found that distributed supply chains may reduce upstream transport cost. Nonetheless, the additional costs for conversion and intermediate transportation associated with distributed supply chains generally leads to a preference for centralized supply chains at biofuel demands below 75 PJout/yr (21 TWh/yr). Distributed supply chains were shown to be useful in cases in which the feedstock cost-supply curves are steep, biofuel production beyond 75 PJout/yr is targeted, or the available biomass resource base is almost fully utilized.
ResultsCentralized vs. distributed biofuel supply chains based on liquefaction technology – the case of Sweden. Executive summary
Elisabeth Wetterlund, Bio4Energy (LTU)
Karin Pettersson, Chalmers/SP // Sierk de Jong and Ric Hoefnagels, Copernicus Institute of Sustainable Development, University of Utrecht
November 2015 - October 2016
Total project cost
250 000 SEK
The f3 partners and Bio4Energy (LTU)
This work in this project was conducted as part of the Renewable Jet Fuel Supply Chain and Flight Operations (RENJET) project that ran between 2013-2016 with funding from EIT Climate-KIC. The RENJET project partners were Utrecht University, Imperial College London, SkyNRG, KLM and Amsterdam Airport Schiphol. The objective of RENJET was to lay the foundations for upscaling production of biofuels for the aviation industry through scientific research and demonstration projects. The f3 study with its analysis of different supply chain configurations for the production of forest-based jet fuel was performed as a case study over Sweden.