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Publications (10 of 77) Show all publications
Hansson, J., Ahlström, J., Furusjö, E., Lundgren, J. & Nojpanya, P. (2023). Costs for Reducing GHG Emissions from Road and Air Transport with Biofuels and Electrofuels. In: I. De Bari; N. Scarlat; A. Grassi (Ed.), European Biomass Conference and Exhibition (EUBCE) Proceedings: . Paper presented at 31st European Biomass Conference and Exhibition (EUBCE 2023), Bologna, Italy, June 5-9, 2023 (pp. 68-372). ETA-Florence Renewable Energies
Open this publication in new window or tab >>Costs for Reducing GHG Emissions from Road and Air Transport with Biofuels and Electrofuels
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2023 (English)In: European Biomass Conference and Exhibition (EUBCE) Proceedings / [ed] I. De Bari; N. Scarlat; A. Grassi, ETA-Florence Renewable Energies , 2023, p. 68-372Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
ETA-Florence Renewable Energies, 2023
Series
European Biomass Conference and Exhibition Proceedings, E-ISSN 2282-5819
National Category
Energy Systems Other Environmental Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-103457 (URN)10.5071/31stEUBCE2023-2DO.5.3 (DOI)2-s2.0-85174598141 (Scopus ID)
Conference
31st European Biomass Conference and Exhibition (EUBCE 2023), Bologna, Italy, June 5-9, 2023
Note

Funder: Swedish Energy Agency (P2021-00091);

ISBN for host publication: 978-88-89407-23-3

Available from: 2024-01-03 Created: 2024-01-03 Last updated: 2024-01-03Bibliographically approved
Li, F., Chang, F., Lundgren, J., Zhang, X., Liu, Y., Engvall, K. & Ji, X. (2023). Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO2 from Biosyngas. ACS Sustainable Chemistry and Engineering, 11(7), 2810-2818
Open this publication in new window or tab >>Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO2 from Biosyngas
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2023 (English)In: ACS Sustainable Chemistry and Engineering, E-ISSN 2168-0485, Vol. 11, no 7, p. 2810-2818Article in journal (Refereed) Published
Abstract [en]

Electrochemical reduction of CO2 removed from biosyngas into value-added methanol (CH3OH) provides an attractive way to mitigate climate change, realize CO2 utilization, and improve the overall process efficiency of biomass gasification. However, the economic and environmental feasibilities of this technology are still unclear. In this work, economic and environmental assessments for the stand-alone CO2 electrochemical reduction (CO2R) toward CH3OH with ionic liquid as the electrolyte and the integrated process that combined CO2R with biomass gasification were conducted systematically to identify key economic drivers and provide technological indexes to be competitive. The results demonstrated that costs of investment associated with CO2R and electricity are the main contributors to the total production cost (TPC). Integration of CO2R with CO2 capture/purification and biomass gasification could decrease TPC by 28%-66% under the current and future conditions, highlighting the importance of process integration. Energy and environmental assessment revealed that the energy for CO2R dominated the main energy usage and CO2 emissions, and additionally, the energy structure has a great influence on environmental feasibility. All scenarios could provide climate benefits over the conventional coal-to-CH3OH process if renewable sources are used for electricity generation.

Place, publisher, year, edition, pages
American Chemical Society, 2023
Keywords
carbon dioxide, economic analysis, Electrochemical reduction, energy, environmental assessment, methanol production
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-95680 (URN)10.1021/acssuschemeng.2c05968 (DOI)2-s2.0-85147820420 (Scopus ID)
Funder
Swedish Energy Agency, P47500-1
Note

Validerad;2023;Nivå 2;2023-02-22 (hanlid)

Available from: 2023-02-22 Created: 2023-02-22 Last updated: 2023-02-22Bibliographically approved
Wang, C., Nwachukwu, C. M., Sandberg, E., Lundgren, J. & Wetterlund, E. (2021). Perspectives of using biomass to reduce fossil CO2 emission in the Swedish steel industry. In: : . Paper presented at 5th European Steel Technology and Application Days (ESTAD 2021), Stockholm, Sweden (digital hybrid), August 30-September 2, 2021.
Open this publication in new window or tab >>Perspectives of using biomass to reduce fossil CO2 emission in the Swedish steel industry
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2021 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Energy Systems Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-86868 (URN)
Conference
5th European Steel Technology and Application Days (ESTAD 2021), Stockholm, Sweden (digital hybrid), August 30-September 2, 2021
Available from: 2021-08-26 Created: 2021-08-26 Last updated: 2021-09-01Bibliographically approved
Zetterholm, J., Mossberg, J., Lundgren, J. & Wetterlund, E. (2019). Evaluating investments in integrated biofuel production - factoring in uncertainty through real options analysis. In: Wojciech Stanek; Paweł Gładysz; Sebastian Werle, Wojciech Adamczyk (Ed.), ECOS 2019 - Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems: . Paper presented at 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Wrocław, Poland, June 23-28, 2019 (pp. 1911-1922). Silesian University of Technology
Open this publication in new window or tab >>Evaluating investments in integrated biofuel production - factoring in uncertainty through real options analysis
2019 (English)In: ECOS 2019 - Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems / [ed] Wojciech Stanek; Paweł Gładysz; Sebastian Werle, Wojciech Adamczyk, Silesian University of Technology , 2019, p. 1911-1922Conference paper, Published paper (Refereed)
Abstract [en]

In the endeavour to reduce CO2 emissions from the transport sector, biofuels from forest industry by-products are key. The adaptation of forest-based biorefinery technologies has so far been low which can partly be attributed to uncertainties in the form of policy instability, market prices, and technology costs. These uncertainties in combination with technology learning, which can be expected to reduce future investment costs, could make it favourable to postpone an investment decision. When applying real options theory, it is recognised that there is an opportunity cost associated with the decision to invest, since the option to wait for more favourable market conditions to occur is forfeited. In traditional discounted cash flow analysis, the impact of uncertainty and the value of reducing it (e.g. by waiting), is usually not taken into consideration. This paper uses a real options framework that incorporates the option to postpone an investment to reduce market uncertainties and wait for technology learning to occur. The focus is to investigate how the usage of an investment decision rule based on real options analysis affects technology choice, the economic performance, and when in time it is favourable to invest in pulp mill integrated biofuel production, compared with using a decision rule based on traditional discounted cash flow analysis. As an illustrative case study we examine a pulp mill which has the option, but not the obligation, to invest in either of two different biofuel production technologies that both use the pulp mill by-product black liquor as feedstock: (1) black liquor gasification followed by fuel synthesis, and (2) membrane separation of lignin followed by hydrodeoxygenation. With the usage of the real options framework and the inclusion of the uncertainties regarding future market prices and investment costs, the decision to invest is made later, compared with using traditional cash flow analysis. The usage of real options also reduces the likeliness of a net loss occurring if an investment is made, as well as increases the expected economic returns, showing the added economic value of flexibility in the face of uncertain future conditions.

Place, publisher, year, edition, pages
Silesian University of Technology, 2019
Keywords
Integrated biofuel production, Techno-economic analysis, Uncertainty, Real options, Pulp mill
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-75818 (URN)2-s2.0-85079635479 (Scopus ID)
Conference
32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Wrocław, Poland, June 23-28, 2019
Note

ISBN för värdpublikation: 978-836150651-5

Available from: 2019-09-03 Created: 2019-09-03 Last updated: 2021-04-28Bibliographically approved
Mesfun, S., Lundgren, J., Toffolo, A., Lindbergh, G., Lagergren, C. & Engvall, K. (2019). Integration of an electrolysis unit for producer gas conditioning in a bio-synthetic natural gas plant. Journal of energy resources technology, 141(1), Article ID 012002.
Open this publication in new window or tab >>Integration of an electrolysis unit for producer gas conditioning in a bio-synthetic natural gas plant
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2019 (English)In: Journal of energy resources technology, ISSN 0195-0738, E-ISSN 1528-8994, Vol. 141, no 1, article id 012002Article in journal (Refereed) Published
Abstract [en]

Producer gas from biomass gasification contains impurities like tars, particles, alkali salts, and sulfur/nitrogen compounds. As a result, a number of process steps are required to condition the producer gas before utilization as a syngas and further upgrading to final chemicals and fuels. Here, we study the concept of using molten carbonate electrolysis cells (MCEC) both to clean and to condition the composition of a raw syngas stream, from biomass gasification, for further upgrading into synthetic natural gas (SNG). A mathematical MCEC model is used to analyze the impact of operational parameters, such as current density, pressure and temperature, on the quality and amount of syngas produced. Internal rate of return (IRR) is evaluated as an economic indicator of the processes considered. Results indicate that, depending on process configuration, the production of SNG can be boosted by approximately 50-60% without the need of an additional carbon source, i.e., for the same biomass input as in standalone operation of the GoBi-Gas plant. Copyright

Place, publisher, year, edition, pages
The American Society of Mechanical Engineers (ASME), 2019
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-70732 (URN)10.1115/1.4040942 (DOI)000452421900004 ()2-s2.0-85052065806 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-09-03 (andbra)

Available from: 2018-09-03 Created: 2018-09-03 Last updated: 2019-02-13Bibliographically approved
Patrizio, P., Leduc, S., Kraxner, F., Fuss, S., Kindermann, G., Spokas, K., . . . Obersteiner, M. (2019). Killing two birds with one stone: a negative emissions strategy for a soft landing of the US coal sector. In: José Carlos Magalhães Pires and Ana Luísa Da Cunha Gonçalves (Ed.), Bioenergy with Carbon Capture and Storage: Using Natural Resources for Sustainable Development (pp. 219-236). Elsevier
Open this publication in new window or tab >>Killing two birds with one stone: a negative emissions strategy for a soft landing of the US coal sector
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2019 (English)In: Bioenergy with Carbon Capture and Storage: Using Natural Resources for Sustainable Development / [ed] José Carlos Magalhães Pires and Ana Luísa Da Cunha Gonçalves, Elsevier, 2019, p. 219-236Chapter in book (Refereed)
Abstract [en]

In a modeling study, optimizing the transformation of the US coal sector to achieve emissions reductions consistent with the 2°C target, we include all current coal-fired power plants of the US fleet, a large part of which will need to be replaced due to their high age. Coal-fired power plants can either be (1) replaced by higher efficiency coal plants or (2) natural gas plants while units are not yet at the end of their lifetime and can be (3) retrofitted with carbon capture and storage (CCS) or (4) retrofitted to cofire coal and biomass coupled with CCS (BECCS) thereby achieving negative emissions. Our results show that if the 2°C emissions mitigation target should be achieved, the cost-optimal way of doing so is through an early implementation of BECCS. This strategy also helps to address the US Administrations’ concern for coal workers: there is a more gradual phaseout of coal, which allows to retain 40,000 jobs that would be loss due to the fleet retirement for aging. In addition, 22,000 new workers would be permanently employed in the coal sector by the end of midcentury, especially in areas where the deployments of BECCS would start already by 2030. Our modeling results indicate the Great Lakes area and the southeast United States as the greatest winners of this negative emissions strategy. If planned in an integrated and forward-looking way, climate change mitigation can boost employment and competitiveness.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Climate mitigation, employment creation, US coal sector, BECCS
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-76040 (URN)10.1016/B978-0-12-816229-3.00011-9 (DOI)2-s2.0-85084523164 (Scopus ID)
Funder
Bio4Energy
Note

ISBN för värdpublikation: 978-0-12-816229-3

Available from: 2019-09-17 Created: 2019-09-17 Last updated: 2020-06-25Bibliographically approved
Carvalho, L., Furusjö, E., Ma, C., Ji, X., Lundgren, J., Hedlund, J., . . . Wetterlund, E. (2018). Alkali enhanced biomass gasification with in situ S capture and a novel syngas cleaning: Part 2: Techno-economic analysis. Energy, 165(Part B), 471-482
Open this publication in new window or tab >>Alkali enhanced biomass gasification with in situ S capture and a novel syngas cleaning: Part 2: Techno-economic analysis
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2018 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 165, no Part B, p. 471-482Article in journal (Refereed) Published
Abstract [en]

Previous research has shown that alkali addition has operational advantages in entrained flow biomass gasification and allows for capture of up to 90% of the biomass sulfur in the slag phase. The resultant low-sulfur content syngas can create new possibilities for syngas cleaning processes. The aim was to assess the techno-economic performance of biofuel production via gasification of alkali impregnated biomass using a novel gas cleaning systemcomprised of (i) entrained flow catalytic gasification with in situ sulfur removal, (ii) further sulfur removal using a zinc bed, (iii) tar removal using a carbon filter, and (iv) CO2 reductionwith zeolite membranes, in comparison to the expensive acid gas removal system (Rectisol technology). The results show that alkali impregnation increases methanol productionallowing for selling prices similar to biofuel production from non-impregnated biomass. It was concluded that the methanol production using the novel cleaning system is comparable to the Rectisol technology in terms of energy efficiency, while showing an economic advantagederived from a methanol selling price reduction of 2–6 €/MWh. The results showed a high level of robustness to changes related to prices and operation. Methanol selling prices could be further reduced by choosing low sulfur content feedstocks.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Biomass gasification, Catalysis, Entrained-flowBio-methanol, Techno-economic analysis
National Category
Energy Systems Energy Engineering Chemical Process Engineering
Research subject
Energy Engineering; Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-68206 (URN)10.1016/j.energy.2018.09.159 (DOI)000455171600039 ()2-s2.0-85056197830 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-12-03 (johcin)

Available from: 2018-04-05 Created: 2018-04-05 Last updated: 2023-09-05Bibliographically approved
Furusjö, E., Ma, C., Ji, X., Carvalho, L., Lundgren, J. & Wetterlund, E. (2018). Alkali enhanced biomass gasification with in situ S capture and novel syngas cleaning: Part 1: Gasifier performance. Energy, 157, 96-105
Open this publication in new window or tab >>Alkali enhanced biomass gasification with in situ S capture and novel syngas cleaning: Part 1: Gasifier performance
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2018 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 157, p. 96-105Article in journal (Refereed) Published
Abstract [en]

Previous research shows that alkali addition in entrained flow biomass gasification can increase char conversion and decrease tar and soot formation through catalysis. This paper investigates two other potential benefits of alkali addition: increased slag flowability and in situ sulfur capture.

Thermodynamic equilibrium calculations show that addition of 2–8% alkali catalyst to biomass completely changes the chemical domain of the gasifier slag phase to an alkali carbonate melt with low viscosity. This can increase feedstock flexibility and improve the operability of an entrained flow biomass gasification process. The alkali carbonate melt also leads to up to 90% sulfur capture through the formation of alkali sulfides. The resulting reduced syngas sulfur content can potentially simplify gas cleaning required for catalytic biofuel production.

Alkali catalyst recovery and recycling is a precondition for the economic feasibility of the proposed process and is effected through a wet quench. It is shown that the addition of Zn for sulfur precipitation in the alkali recovery loop enables the separation of S, Ca and Mg from the recycle. For high Si and Cl biomass feedstocks, an alternative separation technology for these elements may be required to avoid build-up.

Place, publisher, year, edition, pages
Elsevier, 2018
National Category
Energy Systems Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-68753 (URN)10.1016/j.energy.2018.05.097 (DOI)000440876600010 ()2-s2.0-85048465146 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-06-25 (andbra)

Available from: 2018-05-16 Created: 2018-05-16 Last updated: 2018-08-30Bibliographically approved
Svanberg, M., Finnsgård, C., Flodén, J. & Lundgren, J. (2018). Analyzing animal waste-to-energy supply chains: The case of horse manure. Paper presented at 1st International Conference on Bioresource Technology for Bioenergy, Bioproducts and Environmental Sustainability (BIORESTEC), Sitges, Spain, OCT 23-26, 2016. Renewable energy, 129B, 830-837
Open this publication in new window or tab >>Analyzing animal waste-to-energy supply chains: The case of horse manure
2018 (English)In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 129B, p. 830-837Article in journal (Refereed) Published
Abstract [en]

To reduce human impact upon the environment, a transition from fossil to renewable energy sources such as biomass is imperative. Biomass from animal waste such as horse manure has unutilized potential as it has yet to be implemented at a large scale as an energy source. Research has demonstrated the technical feasibility of using animal waste for energy conversion, though their supply chain cost poses a barrier, as does a gap in research regarding the specific design of efficient horse manure-to-energy supply chains. In response, we investigated the design of horse manure-to-energy supply chains through interviews and site visits at stables, as well as through interviews with transport companies. Our findings show that horse manure-to-energy supply chains have distinct attributes at all stages of the supply chain such as the geographical spread of stables that determines supply chain design and hampers efficiency. They share several such attributes with forest biomass-to-energy supply chains, from which important needs can be identified, including the industrial development of trucks dedicated to the purpose, mathematical modeling to handle the trade-off of cost of substance loss in storage and cost of transport, and business models that reconcile the conflicting goals of different actors along the supply chains.

Place, publisher, year, edition, pages
Elsevier, 2018
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-62907 (URN)10.1016/j.renene.2017.04.002 (DOI)000440771200018 ()2-s2.0-85017455474 (Scopus ID)
Conference
1st International Conference on Bioresource Technology for Bioenergy, Bioproducts and Environmental Sustainability (BIORESTEC), Sitges, Spain, OCT 23-26, 2016
Note

Konferensartikel i tidskrift;2018-07-23 (inah)

Available from: 2017-04-05 Created: 2017-04-05 Last updated: 2018-08-16Bibliographically approved
Zetterholm, J., Wetterlund, E., Pettersson, K. & Lundgren, J. (2018). Evaluation of value chain configurations for fast pyrolysis of lignocellulosic biomass: Integration, feedstock, and product choice. Energy, 144, 564-575
Open this publication in new window or tab >>Evaluation of value chain configurations for fast pyrolysis of lignocellulosic biomass: Integration, feedstock, and product choice
2018 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 144, p. 564-575Article in journal (Refereed) Published
Abstract [en]

Fast pyrolysis of lignocellulosic biomass constitutes a promising technology to reduce dependence on fossil fuels. The product, pyrolysis liquids, can either substitute heavy fuel oil directly, or be upgraded via e.g. hydroprocessing to diesel and petrol. This study presents a systematic evaluation of production costs and CO2 mitigation potentials of different fast pyrolysis value chain configurations. The evaluation considers types of localisations, emissions from electricity and hydrogen production, biomass feedstocks, and final products. The resulting production costs were found to be in the range of 36–60 EUR/MWh for crude pyrolysis liquids, and 61–90 EUR/MWh upgraded to diesel and petrol. Industrial integration was found to be favoured. The CO2 mitigation potential for the pyrolysis liquids was in the range of 187–282 t-CO2/GWh biomass. High variations were found when upgraded to diesel and petrol –best-case scenario resulted in a mitigation of 347 t-CO2/GWh biomass, while worst-case scenarios resulted in net CO2 emissions. Favourable policy support, continued technology development, and/or increased fossil fuel prices are required for the technology to be adapted on an industrial scale. It was concluded that integration with existing industrial infrastructure can contribute to cost reductions and thus help enable the transformation of traditional forest industry into biorefineries.

Place, publisher, year, edition, pages
Elsevier, 2018
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-67160 (URN)10.1016/j.energy.2017.12.027 (DOI)000425561500046 ()2-s2.0-85038946657 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-01-04 (svasva)

Available from: 2018-01-04 Created: 2018-01-04 Last updated: 2021-10-15Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0002-2314-8097

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