Power-to-food in Stenungsund
Green-On is developing the process concept "Power-to-Food" to produce edible oils and fats from renewable electricity, water, and carbon dioxide. The aim is to showcase the potential for integrated food production in a new type of value chain for the Stenungsund cluster and to demonstrate the benefits of process integration for the entire process concept.
The project aims to evaluate various process alternatives for integration with the Stenungsund cluster and compare these alternatives against a reference facility located elsewhere. The process alternatives being investigated may differ in terms of technology choices (such as for electrolysis and olefin synthesis) as well as which process steps are localized in Stenungsund (for example, renewable hydrogen or methanol may be purchased for the Green-On process to reduce the electricity demand in Stenungsund).
The different process alternatives will be adapted based on the availability of raw materials (such as carbon dioxide) or the suitable size of by-product streams that can be returned to the Stenungsund industries (ethylene, propylene, technical alcohols). A techno-economic evaluation of the various process alternatives concerning mass and energy balances, investment and operating costs for the different options, power requirements, and integration possibilities with the Stenungsund cluster will be conducted. The advantages and disadvantages of locating in Stenungsund compared to the reference case will also be analyzed, including a qualitative assessment of the possibilities for flexible operation of the different process alternatives.
Goals
The project aims to:
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Identify suitable process chains for integration in Stenungsund. Identified process chains may differ in terms of technology choices (such as for electrolysis and olefin synthesis) and which process steps are localized to Stenungsund. As an alternative to localizing all process steps to Stenungsund, it is conceivable to use either hydrogen, methanol, or ethylene as a starting point and only localize the downstream process steps in Stenungsund. Hydrogen, methanol, or ethylene can be imported either from other industries in the cluster or from the market.
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Define the appropriate scale for identified process chains. Scaling considerations may include, for example, the availability of relevant raw materials in the cluster, the cluster's demand for by-products, and economic economies of scale from oversizing certain process steps, which would then be shared between Green-On and other actors.
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Estimate CAPEX/OPEX, electrical power requirements, and heat and material integration with the cluster for the identified process steps. Opportunities/obstacles for flexible operation of the process alternatives will also be evaluated at a qualitative level.
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Compare with relevant reference cases with greenfield establishment elsewhere. Such a greenfield establishment is made adjacent to a carbon dioxide point source but without the possibility of further material integration. To make fair comparisons, a greenfield establishment of the same size class as the process chains in Stenungsund will be evaluated.
Participating Parties
Chalmers Industriteknik / CIT Renergy, Green-On, Josefsson Sustainable Chemistry AB, Perstorp, AAK, Adesso Bioproducts, and Vattenfall.
Time Period
2024-01-15 - 2024-09-30
Total Budget
500,000 SEK
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