| 1. |
- Dimitriadis, Athanasios, et al.
(författare)
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Biomass conversion via ablative fast pyrolysis and hydroprocessing towards refinery integration : Industrially relevant scale validation
- 2023
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Ingår i: Fuel. - : Elsevier Ltd. - 0016-2361 .- 1873-7153. ; 332
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Tidskriftsartikel (refereegranskat)abstract
- Reducing the use of fossil fuels is an ongoing and important effort considering the environmental impact and depletion of fossil-based resources. The combination of ablative fast pyrolysis and hydroprocessing is explored as a pathway allowing bio-based intermediates (BioMates) integration in underlying petroleum refineries. The proposed technology is validated in industrially relevant scale, identifying pros and cons towards its commercialization. Straw from wheat, rye and barley was fed to ablative fast pyrolysis rendering Fast Pyrolysis Bio-Oil (FPBO) as the main product. The FPBO was stabilized via slurry hydroprocessing, rendering a stabilized FPBO (sFPBO) with 49 % reduced oxygen content, 71 % reduced carbonyl content and 49 % reduced Conradson carbon residue. Fixed bed catalytic hydroprocessing of sFPBO resulted in the production of BioMates, a high bio-content product to be co-fed in established refinery units. Compared to the starting biomass, BioMates has 83.6 wt% C content increase, 92.5 wt% O content decrease, 93.0 wt% water content decrease, while the overall technology has 20 wt% conversion yield (32 wt% carbon yield) from biomass to BioMates. © 2022 The Author(s)
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| 2. |
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| 3. |
- Hirvonen, Henna, et al.
(författare)
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Lifestyle Redesign® with independent living older adults in countries other than the USA
- 2023
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Ingår i: Scandinavian Journal of Occupational Therapy. - : Taylor & Francis. - 1103-8128 .- 1651-2014. ; 30:1, s. 109-124
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundHealth promotion services need to be developed to respond to the needs of an ageing population. Lifestyle Redesign(R) (LR(R)) is an occupational therapy intervention that has been addressed as cost-effective in the USA.Aims/objectivesThis scoping review aimed to identify how the LR(R) has been implemented and what the results have been with older adults living independently in countries other than the USA.Material and methodsSixteen studies were included. Quantitative results were interpreted through the numeric data and qualitative results through inductive thematic analysis.ResultsThe delivery of the LR(R) shared both similarities and differences with the original LR(R), and the variations concerned interventions length, facilitators, and the outcome measures used. In the quantitative results, there was often a positive trend in intervention groups' health-related quality of life, mental health, and occupational performance; in qualitative results, there was improvement in self-esteem and possibilities in building new communities.Conclusions and significanceThe original LR(R) was often transferrable into cultural settings other than the USA and many positive outcomes in the health and well-being of older adults were addressed. However, to understand the feasibility and effectiveness of the LR(R), scientific research and publications need to be enhanced.
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| 4. |
- Johansson, Ann-Christine, et al.
(författare)
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Comparative study of thermochemical recycling with solvolysis and pyrolysis of End-of-Life wind turbine blades : Rekovind2 - WP3
- 2023
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- There is an urgent need for the development of viable recycling solutions for the increasing waste streams of glass fiber composites (GFRPs) from all sectors i.e. leisure boats, windmills and building constructions. Two potential recycling methods that can separate and recover both the polymers and the high-quality fibers from these kinds of materials are pyrolysis and solvolysis. In this project recycling of an epoxy-based Endof-Life wind turbine blade was evaluated in lab scale using the two methods. In previous literature the main focus has been on the quality of the fibers but in this project the main focus was to compare the chemical composition of the oil products. The produced oils from solvolysis and pyrolysis have been compared with a multianalysis approach by using elemental analysis, GC-MS, pyro-GC-MS/FID, 2D NMR (HSQC) for gaining more information about the chemical structure of the produced monomers (phenols), oligomers and polymers. Almost all the volatile matter in the End-of-Life wind turbine blade was recovered as pyrolysis oil, 36 wt.% yield. The solvolysis oil yield was lower, 17 wt.%, mainly due to a major part of the solvolysis oil ended up in the aqueous solvent. The composition of the oils from both technologies was analyzed based on both their volatile i.e. monomeric and polymeric content. The result point to that both methods produced oils with similar polymeric parts according to NMR and pyro-GC-MS/FID, based on an oxygenated aliphatic network connected with aromatic phenolic structures. Increased information of chemical oil composition will be useful for further processing as raw material in refineries/chemical industries. The monomeric part of the oil produced from pyrolysis was found in relatively large amounts, ~57 wt.%, and can be a future high-value product from recycling of wind turbine blades. The total recovery of phenolics from the pyrolysis was 18 wt.% of the wind turbine blade weight.
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| 5. |
- Johansson, Ann-Christine, et al.
(författare)
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Comparison of co-refining of fast pyrolysis oil from Salix via catalytic cracking and hydroprocessing
- 2023
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Ingår i: Biomass and Bioenergy. - : Elsevier Ltd. - 0961-9534 .- 1873-2909. ; 172
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Tidskriftsartikel (refereegranskat)abstract
- Lignocellulosic biomass from energy crops, i.e., short rotation coppice willows such as Salix spp., can be used as feedstock for production of transportation biofuels. Biomass conversion via fast pyrolysis followed by co-refining with fossil oil in existing refinery infrastructure could enable a fast introduction of large-scale production of biofuels. In this study, Salix was first liquefied using ablative fast pyrolysis in a pilot scale unit. The resulting pyrolysis oil, rich in oxygenates, was thereafter co-refined in 20 wt% ratio with fossil feedstock using two separate technologies, a fluidized catalytic cracking (FCC) laboratory unit and a continuous slurry hydroprocessing pilot plant. In the FCC route, the pyrolysis oil was cracked at 798 K using a commercial FCC catalyst at atmospheric pressure, while in the hydroprocessing route, the oil was processed at 693 K and a hydrogen pressure of 15 MPa in the presence of an unsupported molybdenum sulfide catalyst. Both routes resulted in significant deoxygenation (97 wt% versus 93 wt%). It is feasible to co-refine pyrolysis oil using both methods, the main difference being that the hydroprocessing results in a significantly higher biogenic carbon yield from the pyrolysis oil to liquid and gaseous hydrocarbon products (92 wt%) but would in turn require input of H2. In the cracking route, besides the liquid product, a significant part of the biogenic carbon ends up as gas and as coke on the catalyst. The choice of route depends, among other factors, on the available amount of bio-oil and refining infrastructures. © 2023 The Authors
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| 6. |
- Johansson, Ann, 1955-, et al.
(författare)
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Exploring the state of Internationalisation of the curriculum at a Swedish university: lessons learned [blog post]
- 2022
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Annan publikation (populärvet., debatt m.m.)abstract
- Introductory paragraph: Globalisation and technological development are steadily reshaping the landscape of higher education (HE) and making new demands on higher education institutions (HEIs) to prepare their graduates for the challenge of living and working in a globally connected world. According to the OECD (2018), global awareness and social and cross-cultural skills are highlighted as 21st-century skills that students need to succeed in their future careers.
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| 7. |
- Johansson, Ann, 1955-, et al.
(författare)
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Möten med minnen : Ett samverkansprojekt mellan Jönköpings läns Hembygdsförbund, Region Jönköpings län och Hälsohögskolan, Jönköping University
- 2022
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- I dag lever över 130 000 personer med en demenssjukdom i Sverige och antalet ökar. Att delta i mentalt stimulerande aktiviteter kan vara ett sätt att hantera dagliga utmaningar och anpassa sig till minnesproblematik. Demens berör inte bara de som insjuknar utan också deras anhöriga och det finns ett behov av att erbjuda aktiviteter där även anhöriga inkluderas. Ett exempel på en mentalt stimulerande aktivitet för personer med demens och deras anhöriga är den anpassade konstvisningen Möten med minnen som bedrivs på flera museer i Sverige. Visningarna sker i grupp och innebär att titta på och utbyta tankar om konst eller föremål, och associera till egna upplevelser, utifrån olika teman. Förutom konstrelaterade ämnen kan visningarna också utgå från till exempel bygdehistora och bruksföremål. Syftet med föreliggande studie var att utvärdera om en visningsaktivitet i grupp inom hembygdsföreningar kan påverka sinnesstämning hos personer med mild eller medelsvår demens. Vidare var syftet att utvärdera anhörigas upplevelser av gruppaktiviteten. Rekrytering av deltagare skedde genom personal från demensteam i kommunal verksamhet och regionsjukvård. Totalt bestod studien av nio personer med demenssjukdom och nio anhöriga, som också var partners, till dessa personer. Första visningsaktiviteten startade september 2019 på Norrahammars industri-och bygdemuseum och fortsatte januari 2020 samt oktober 2021 i Aneby Hembygdsförening. Grupperna träffades en gång i veckan under tre veckor och varje träff varade två timmar. Föremål och tavlor som gestaltade vardagen förr i tiden presenterades för deltagarna och gruppledarna uppmuntrade deltagarna att associera till föremålen och minnas hur de hade använts. För att ta reda på om visningsaktiviteten hade någon inverkan på sinnesstämningen observerades personerna med demens samt att de själva fick skatta sitt stämningsläge före och efter aktiviteten. Förutom att de anhöriga också skattade sitt stämningsläge, deltog de också i en intervju. Resultatet visade att både personer med demens och deras anhöriga var gladare efter visningsaktiviteten än före. Personerna med demens visade också aktivt intresse och positiva känsloyttringar under de två timmarna som visningsaktiviteten pågick. De anhöriga uppskattade att göra en aktivitet utanför hemmet och att få göra något tillsammans med sin partner. På grund av kognitiv svikt var behållningen för personerna med demens oftast bunden till stunden, men projektet visade ändå på ett givande sätt att öka både sinnesstämningen och relationen mellan partnerna.
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| 8. |
- Pena-Perez, Lucia, et al.
(författare)
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FOXO Dictates Initiation of B Cell Development and Myeloid Restriction in Common Lymphoid Progenitors
- 2022
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Ingår i: Frontiers in Immunology. - : Frontiers Media S.A.. - 1664-3224. ; 13
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Tidskriftsartikel (refereegranskat)abstract
- The development of B cells relies on an intricate network of transcription factors critical for developmental progression and lineage commitment. In the B cell developmental trajectory, a temporal switch from predominant Foxo3 to Foxo1 expression occurs at the CLP stage. Utilizing VAV-iCre mediated conditional deletion, we found that the loss of FOXO3 impaired B cell development from LMPP down to B cell precursors, while the loss of FOXO1 impaired B cell commitment and resulted in a complete developmental block at the CD25 negative proB cell stage. Strikingly, the combined loss of FOXO1 and FOXO3 resulted in the failure to restrict the myeloid potential of CLPs and the complete loss of the B cell lineage. This is underpinned by the failure to enforce the early B-lineage gene regulatory circuitry upon a predominantly pre-established open chromatin landscape. Altogether, this demonstrates that FOXO3 and FOXO1 cooperatively govern early lineage restriction and initiation of B-lineage commitment in CLPs.
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| 9. |
- Rönnberg Wästljung, Ann-Christin, et al.
(författare)
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Optimized utilization of Salix—Perspectives for the genetic improvement toward sustainable biofuel value chains
- 2022
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Ingår i: Global Change Biology Bioenergy. - : John Wiley and Sons Inc. - 1757-1693 .- 1757-1707. ; 14:10, s. 1128-144
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Tidskriftsartikel (refereegranskat)abstract
- Bioenergy will be one of the most important renewable energy sources in the conversion from fossil fuels to bio-based products. Short rotation coppice Salix could be a key player in this conversion since Salix has rapid growth, positive energy balance, easy to manage cultivation system with vegetative propagation of plant material and multiple harvests from the same plantation. The aim of the present paper is to provide an overview of the main challenges and key issues in willow genetic improvement toward sustainable biofuel value chains. Primarily based on results from the research project “Optimized Utilization of Salix” (OPTUS), the influence of Salix wood quality on the potential for biofuel use is discussed, followed by issues related to the conversion of Salix biomass into liquid and gaseous transportation fuels. Thereafter, the studies address genotypic influence on soil carbon sequestration in Salix plantations, as well as on soil carbon dynamics and climate change impacts. Finally, the opportunities for plant breeding are discussed using willow as a resource for sustainable biofuel production. Substantial phenotypic and genotypic variation was reported for different wood quality traits important in biological (i.e., enzymatic and anaerobic) and thermochemical conversion processes, which is a prerequisite for plant breeding. Furthermore, different Salix genotypes can affect soil carbon sequestration variably, and life cycle assessment illustrates that these differences can result in different climate mitigation potential depending on genotype. Thus, the potential of Salix plantations for sustainable biomass production and its conversion into biofuels is shown. Large genetic variation in various wood and biomass traits, important for different conversion processes and carbon sequestration, provides opportunities to enhance the sustainability of the production system via plant breeding. This includes new breeding targets in addition to traditional targets for high yield to improve biomass quality and carbon sequestration potential. © 2022 The Authors.
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| 10. |
- Shafaghat, Hoda, et al.
(författare)
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Enhanced Biofuel Production via Catalytic Hydropyrolysis and Hydro-Coprocessing
- 2022
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Ingår i: Energy & Fuels. - : American Chemical Society. - 0887-0624 .- 1520-5029. ; 36:1, s. 450-462
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Tidskriftsartikel (refereegranskat)abstract
- In order to successfully integrate biomass pyrolysis oils as starting materials for conventional oil refineries, upgrading of the pyrolysis oils is needed to achieve desired properties, something which can be performed either as part of the pyrolysis process and/or by separate catalytic treatment of the pyrolysis intermediate oil products. In this study, the quality of stem wood-derived pyrolysis oil was improved via ex situ catalytic hydropyrolysis in a bench-scale pyrolyzer (stage 1), followed by catalytic hydro-coprocessing with fossil co-feed in a laboratory-scale high pressure autoclave (stage 2). The effect of pyrolysis upgrading conditions was investigated based on the quality of intermediate products and their suitability for hydro-coprocessing. HZSM-5 and Pt/TiO2 catalysts (400 °C, atmospheric pressure) were employed for ex situ pyrolysis, and the NiMoS/Al2O3 catalyst (330 °C, 100 bar H2 initial pressure) was used for hydro-coprocessing of the pyrolysis oil. The application of HZSM-5 in the pyrolysis of stem wood under a N2 atmosphere decreased the formation of acids, ketones, aldehydes, and furans and increased the production of aromatic hydrocarbons and phenolics (guaiacols and phenols). Replacing HZSM-5 with Pt/TiO2 and N2 with H2 resulted in complete conversion of guaiacols and significant production of phenols, with further indications of increased stability and reduced coking tendencies.
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