Sebastian Frejo Rasmussen
Bachelor Thesis - Energy Technology - 2019
Denmark is obliged by national goals and international agreements to reduce the Danish CO2 emissions. The Danish goals state that Denmark should be a net-zero emission society by 2050. To comply with this, the aviation sector should be converted to be using green fuels. A solution to produce this is Fischer-Tropsch synthesis.
This bachelor thesis focuses on the prospects of implementation of Fischer-Tropsch jet fuel production in Denmark. It examines this from a technical and economic viewpoint under the assumption that domestic production must satisfy the entire Danish jet fuel demand. Simulations of a model, made in Aspen Plus, provide the performance of the Fischer Tropsch gas-to-liquids conversion, which form the basis of the analysis. Based on the simulations, the study investigates three scenarios with different advantages and disadvantages regarding their implementation into the Danish system. The three scenarios are; one decentralised scenario where the plant feed is biogas, and two scenarios with a centralised production both with a plant feed of biomethane but one of them with co-feed of CO2.
The results of the analysis show that the scenario with the best economic prospects is the scenario with decentral production plants. However, technical and structural complications make it the more uncertain solution. All the evaluated scenarios rely on subsidies, and all of them will consume close to the total Danish potential of biogas or biomethane. Satisfying the entire Danish jet fuel demand from Fischer-Tropsch jet fuel, therefore, requires careful and strategic energy planning.
Biomethane and CO2
Composition of Liquid Product Price
Relationship between Feed Cost and Liquid Product Price