Projektdetaljer
Beskrivelse
Abstract:
For centuries, non-renewable fossil fuels have dominated the world's chemical and energy markets. As a result, the world is now witnessing the CO2 level with the record high of 416.6 ppm, resulting in global warming. To alleviate this effect, the greenhouse gas (GHG) emissions have to be maintained in the range of 445- 490 ppm/ CO2 equivalent. In the present scenario, the reduction of GHG emission is necessary, and replacing the fossil fuels with renewable energy sources such as biomass and biofuel could be an attractive and alternative energy source. Thus, in the recent years the production of liquid fuel from the biomass is gaining an increased significance, achieving the compliant fuel which will find application in the transportation sectors in particular to aviation. In the near future, fuels derived from the biomass could be the only option in reducing the air transport direct carbon emission and having strategically important uses of bioenergy in the long-term process.
So far different technologies were employed to exploit the energy content of the biomass, among all thermochemical processes played a substantial role, because of their ability in transforming the biomass into liquids, high heating values, easy handling etc.
In this project work Hydrothermal liquefaction (HTL) process will be adopted to obtain bio-crude oil. It is expected that the HTL can yield high quality bio-crude with lower oxygen and water contents. However, the bio-crude oil as such cannot be used as a drop-in-fuel, since it possesses acidic in nature, contains aromatic, heteroatoms (O, S, N) and high ash content. At this juncture, the upgradation of biocrude oil is essential for its transformation and the removal of heteroatoms through different unit operations.
The problem in perspectives are the pretreatment of bio-crude, containing large amount of impurities which cannot be directly fed into the catalytic hydro processing. Hence, an effective solvent extraction and separation process are needed in order to reduce its solid content. Then the pretreated biocrude will be subjected to hydrotreating process either in batch or continuous flow mode in the presence of catalyst (industry supplied/ synthesized in energy lab) for the removal of heteroatoms. Hence, by conducting different trial experiments it is expected that the working parameters can be optimized. The challenging part of this research work could be minimizing the carbon losses by limiting decarboxylation/ decarbonylation reactions, removal of inorganics, sulfur, oxygen and nitrogen to an extent of less than 2 ppm. Subsequently in the hydrofinishing process, the properties of the fuel can be further elevated through isomerization method, thereby obtaining a high yield jet fuel that compliance with ASTM 4054 Tier1.
Funding: EU Horizon Europe Research and Innovation Action (Project Circulair, grant no. 101083944)
For centuries, non-renewable fossil fuels have dominated the world's chemical and energy markets. As a result, the world is now witnessing the CO2 level with the record high of 416.6 ppm, resulting in global warming. To alleviate this effect, the greenhouse gas (GHG) emissions have to be maintained in the range of 445- 490 ppm/ CO2 equivalent. In the present scenario, the reduction of GHG emission is necessary, and replacing the fossil fuels with renewable energy sources such as biomass and biofuel could be an attractive and alternative energy source. Thus, in the recent years the production of liquid fuel from the biomass is gaining an increased significance, achieving the compliant fuel which will find application in the transportation sectors in particular to aviation. In the near future, fuels derived from the biomass could be the only option in reducing the air transport direct carbon emission and having strategically important uses of bioenergy in the long-term process.
So far different technologies were employed to exploit the energy content of the biomass, among all thermochemical processes played a substantial role, because of their ability in transforming the biomass into liquids, high heating values, easy handling etc.
In this project work Hydrothermal liquefaction (HTL) process will be adopted to obtain bio-crude oil. It is expected that the HTL can yield high quality bio-crude with lower oxygen and water contents. However, the bio-crude oil as such cannot be used as a drop-in-fuel, since it possesses acidic in nature, contains aromatic, heteroatoms (O, S, N) and high ash content. At this juncture, the upgradation of biocrude oil is essential for its transformation and the removal of heteroatoms through different unit operations.
The problem in perspectives are the pretreatment of bio-crude, containing large amount of impurities which cannot be directly fed into the catalytic hydro processing. Hence, an effective solvent extraction and separation process are needed in order to reduce its solid content. Then the pretreated biocrude will be subjected to hydrotreating process either in batch or continuous flow mode in the presence of catalyst (industry supplied/ synthesized in energy lab) for the removal of heteroatoms. Hence, by conducting different trial experiments it is expected that the working parameters can be optimized. The challenging part of this research work could be minimizing the carbon losses by limiting decarboxylation/ decarbonylation reactions, removal of inorganics, sulfur, oxygen and nitrogen to an extent of less than 2 ppm. Subsequently in the hydrofinishing process, the properties of the fuel can be further elevated through isomerization method, thereby obtaining a high yield jet fuel that compliance with ASTM 4054 Tier1.
Funding: EU Horizon Europe Research and Innovation Action (Project Circulair, grant no. 101083944)
| Status | Igangværende |
|---|---|
| Effektiv start/slut dato | 15/11/2023 → 14/11/2026 |
Samarbejdspartnere
- Bauhaus Luftfahrt e.V
- Aarhus University
- University of Hohenheim
- Complutense University
- Haldor Topsoe AS
- CIRCLIA NORDIC APS
- ENI SPA
- RISE Research Institutes of Sweden
- L - UP SAS
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