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  • 1.
    Gustavsson, Leif
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Holmberg, Jonas
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Dornburg, Veronica
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Sathre, Roger
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Eggers, Thies
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Mahapatra, Krushna
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Marland, Gregg
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Using biomass for climate change mitigation and oil use reduction2007In: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 35, no 11, p. 5671-5691Article in journal (Refereed)
    Abstract [en]

    In this paper, we examine how an increased use of biomass could efficiently meet Swedish energy policy goals of reducing carbon dioxide (CO2) emissions and oil use. In particular, we examine the trade-offs inherent when biomass use is intended to pursue multiple objectives. We set up four scenarios in which up to 400 PJ/year of additional biomass is prioritised to reduce CO2 emissions, reduce oil use, simultaneously reduce both CO2 emission and oil use, or to produce ethanol to replace gasoline. Technologies analysed for using the biomass include the production of electricity, heat, and transport fuels, and also as construction materials and other products. We find that optimising biomass use for a single objective (either CO2 emission reduction or oil use reduction) results in high fulfilment of that single objective (17.4 Tg C/year and 350 PJ oil/year, respectively), at a monetary cost of 130–330 million €/year, but with low fulfilment of the other objective. A careful selection of biomass uses for combined benefits results in reductions of 12.6 Tg C/year and 230 PJ oil/year (72% and 67%, respectively, of the reductions achieved in the scenarios with single objectives), with a monetary benefit of 45 million €/year. Prioritising for ethanol production gives the lowest CO2 emissions reduction, intermediate oil use reduction, and the highest monetary cost.

  • 2.
    Gustavsson, Leif
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Joelsson, Jonas M.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Truong, Nguyen Le
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Where are biomass fuels best used in the Swedish energy system? - efficient use of biomass fuels given different targets with respect to CO2 emission and oil use reduction.: Report prepared for the Swedish Energy Agency2011Report (Other academic)
  • 3.
    Holmberg, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Efficient use of wood - a comparison between chemical and mechanical pulping2005In: Proceedings of the 14th European Biomass Conference and exhibition: Biomass for Energy, Industry and Climate Protection, Florence: ETA - Renewable energies , 2005Conference paper (Other academic)
    Abstract [en]

     

    The pulp and paper industry is energy intensive and consumes large amounts of wood. Here, the total biomass use is estimated for the production of one tonne paper in a cradle-to-factory gate scope, assuming that all energy, including electricity and motor fuels, are produced from forest biomass. We consider the production of newsprint made from mechanical pulp; lightweight coated paper from a mixture of mechanical and chemical pulp; and fine paper from chemical pulp, under Swedish conditions. The results indicate that chemical pulp papers require less biomass resources per tonne of paper produced than do mechanical pulp papers. For mechanical pulp papers, external electricity requires the largest part of the biomass. Motor fuel production accounts in no case for more than 10%. Between 27% and 38% of the total biomass used is embodied in the paper product, indicating that waste paper recovery options are important.

     

  • 4.
    Holmberg, Jonas M.
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Biomass use in chemical and mechanical pulping with biomass-based energy supply2007In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 52, no 2, p. 331-350Article in journal (Refereed)
    Abstract [en]

    The pulp and paper industry is energy intensive and consumes large amounts of wood. Biomass is a limited resource and its efficient use is therefore important. In this study, the total amount of biomass used for pulp and for energy is estimated for the production of several woodfree (containing only chemical pulp) and mechanical (containing mechanical pulp) printing paper products, under Swedish conditions. Chemical pulp mills today are largely self-sufficient in energy while mechanical pulp mills depend on large amounts of external electricity. Technically, all energy used in pulp- and papermaking can be biomass based. Here, we assume that all energy used, including external electricity and motor fuels, is based on forest biomass. The whole cradle-to-gate chain is included in the analyses. The results indicate that the total amount of biomass required per tonne paper is slightly lower for woodfree than for mechanical paper. For the biomass use per paper area, the paper grammage is decisive. If the grammage can be lowered by increasing the proportion of mechanical pulp, this may lower the biomass use per paper area, despite the higher biomass use per unit mass in mechanical paper. In the production of woodfree paper, energy recovery from residues in the mill accounts for most of the biomass use, while external electricity production accounts for the largest part for mechanical paper. Motor fuel production accounts for 5–7% of the biomass use. The biomass contained in the final paper product is 21–42% of the total biomass use, indicating that waste paper recovery is important. The biomass use was found to be about 15–17% lower for modelled, modern mills compared with mills representative of today's average technology.

  • 5.
    Holmberg, Jonas M
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Systems aspects on new energy technologies in the pulp and paper industry2007In: Proceedings. 3rd International Green Energy Conference IGEC-III June 18 - 20, 2007 Västerås, Sweden, 2007Conference paper (Refereed)
    Abstract [en]

    Concerns about energy security, energy prices, and the impact of energy use on the global climate have put focus on ways to reduce CO2 emissions and oil dependency. In this paper we examine consequences of new energy technologies in the pulp and paper industry and estimate the costs for achieving certain CO2 emissions and oil use reductions with different pulp mill technologies. Stand-alone production of electricity and transportation fuel from biomass is included to balance the systems compared, so that they produce the same CO2 emission and oil use reductions. The technologies considered are black liquor gasification (BLG) with electricity and motor fuels production in chemical pulp mills and increased energy efficiency in mechanical pulp mills. The entire production chain from the extraction of primary resources is included in the analysis. Changes in the production chain are assumed to affect energy production on the margin. The technology alternatives are evaluated with respect to five parameters: Net CO2 emission, oil use, primary energy use, biomass use and monetary cost. We find that BLG in chemical pulp mills is favourable compared to stand-alone production of fuels and electricity from biomass. If both CO2 emission reductions and oil use reductions are to be achieved, it is more efficient to implement BLG with motor fuels production and stand-alone electricity production from biomass, than to implement BLG with electricity production and stand-alone production of motor fuels. Increased energy efficiency in refining of thermomechanical pulp is found to achieve CO2 savings more efficiently than stand-alone production of electricity from biomass.

  • 6.
    Joelsson, Jonas
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    On Swedish bioenergy strategies to reduce CO2 emissions and oil use2011Doctoral thesis, comprehensive summary (Other academic)
  • 7.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Biomass strategies in Sweden to reduce CO2 emission and oil use in an EU contextManuscript (preprint) (Other academic)
  • 8.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Biorefineries for efficient CO2 reduction and reduced oil dependency2008In: 2008 Nordic wood biorefinery conference, Proceedings, Stockholm: STFI-Packforsk AB , 2008Conference paper (Refereed)
  • 9.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Biorefineries for Efficient CO2 Reduction and Reduced Oil Dependency2008In: 16th European biomass conference and exhibition, Valencia, Spain, 2008Conference paper (Refereed)
  • 10.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Black liquor gasification for electricity or transportation fuel?2008In: 2008 Nordic wood biorefinery conference, Proceedings, 2008Conference paper (Refereed)
  • 11.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    CO2 emission and oil use reduction through black liquor gasification and energy efficiency in pulp and paper industry2008In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 52, no 5, p. 747-763Article in journal (Refereed)
    Abstract [en]

    We examine consequences of new energy technologies in the pulp and paper industry with respect to net CO2 emissions and oil use. The entire production chain from the extraction of primary resources is included in the analysis. Stand-alone production of electricity and transportation fuel from biomass is included to balance the systems compared, so that they produce the same CO2 emission and oil use reductions. The technologies considered are black liquor gasification (BLG) with electricity and motor fuels production in chemical pulp mills and increased energy efficiency in thermomechanical pulp mills. The technologies are evaluated with respect to net CO2 emission, oil use, primary energy use, biomass use and monetary cost. We find that BLG in chemical pulp mills is favourable compared to stand-alone production of fuels and electricity from biomass. It is more efficient to implement BLG with motor fuels production and stand-alone electricity production from biomass, than to implement BLG with electricity production and stand-alone production of motor fuels. Increased energy efficiency in refining of thermomechanical pulp gives CO2 savings more efficiently than stand-alone production of electricity from biomass. Sensitivity analysis indicates that our conclusions are robust with respect to energy and biomass prices and the choice of coal or natural gas for marginal electricity. Newsprint from thermomechanical pulp would require slightly less biomass and have lower costs than paper from chemical pulp, per metric ton (t) product, when the systems are also required to render the same oil use and CO2 emission reductions. Substituting mineral fillers for 25% of the chemical pulp changes the balance in favour of the chemical pulp paper. At an oil price of 40 US$/barrel, all studied pulp and paper mill technology improvements give unchanged or reduced monetary costs also when oil use and CO2 emissions are not balanced with stand-alone bioenergy plants.

  • 12.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Greenhouse gas and oil use impacts of Fischer-Tropsch diesel and DME production integrated with pulp and paper millsManuscript (preprint) (Other academic)
  • 13.
    Joelsson, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Linnaeus University, SE-351 95 Växjö, Sweden.
    Swedish biomass strategies to reduce CO 2 emission and oil use in an EU context2012In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 43, no 1, p. 448-468Article in journal (Refereed)
    Abstract [en]

    Swedish energy strategies for transportation, space heating and pulp industries were evaluated with a focus on bioenergy use. The aims were to 1) study trade-offs between reductions in CO 2 emission and oil use and between Swedish reductions and EU reductions, 2) compare the potential contributions of individual reduction measures, 3) quantify the total CO 2 emission and oil use reduction potentials. Swedish energy efficiency measures reduced EU CO 2 emission by 45-59 Mt CO 2/a, at current biomass use and constant oil use. Doubling Swedish bioenergy use yielded an additional 40 Mt CO 2/a reduction. Oil use could be reduced, but 36-81 kt of reductions in CO 2 emission would be lost per PJ of oil use reduction. Swedish fossil fuel use within the studied sectors could be nearly eliminated. The expansion of district heating and cogeneration of heat with a high electricity yield were important measures. Plug-in hybrid electric cars reduced CO 2 emission compared with conventional cars, and the difference was larger with increasing oil scarcity. The introduction of black liquor gasification in pulp mills also gave large CO 2 emission reduction. Motor fuel from biomass was found to be a feasible option when coal is the marginal fuel for fossil motor fuel production. © 2012 Elsevier Ltd.

  • 14.
    Joelsson, Jonas M.
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, L
    Linnaeus Univ, SE-35195 Vaxjo, Sweden.
    Reductions in greenhouse gas emissions and oil use by DME (di-methyl ether) and FT (Fischer-Tropsch) diesel production in chemical pulp mills2012In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 39, no 1, p. 363-374Article in journal (Refereed)
    Abstract [en]

    Using energy systems analysis, we examine the potential to reduce CO 2 emissions and oil use by integrating motor biofuel production with pulp mills. BLG-DME (black liquor gasification with di-methyl ether production) is compared with solid biomass gasification with BIG-FT (solid biomass gasification with Fischer-Tropsch fuel production). The studied systems are expanded with stand-alone production of biomass-based electricity and motor fuel so that they yield the same functional unit in terms of motor fuel and electricity as well as pulp or paper product, in order to facilitate comparison. More motor biofuel can be produced in integration with the studied mills with BLG-DME than with BIG-FT because the black liquor flow is large compared with other fuel streams in the mill and the integration potential for BIG-FT is limited by the mill’s heat demand. When both systems are required to produce the same functional unit, the BLG-DME system achieves higher system efficiency and larger reductions in CO 2 emissions and oil use per unit of biomass consumed. In general, integration of motor biofuel production with a pulp mill is more efficient than stand-alone motor biofuel production. Larger reductions in CO 2 emissions or oil use can, however, be achieved if biomass replaces coal or oil in stationary applications. © 2012 Elsevier Ltd.

  • 15.
    Joelsson, Jonas M.
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Efficient biomass strategies to reduce CO2 emission and oil use.: 17th European Biomass Conference & Exhibition, Hamburg, Germany, 29 June - 3 July.2009Conference paper (Refereed)
  • 16.
    Joelsson, Jonas M.
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Reduction of CO2 emission and oil dependency with biomass-based polygeneration2010In: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 34, no 7, p. 967-984Article in journal (Refereed)
    Abstract [en]

    We compare different options for the use of lignocellulosic biomass to reduce CO2 emission and oil use, focusing on polygeneration of biomass-based motor fuels and electricity, and discuss methodological issues related to such comparisons. The use of biomass can significantly reduce CO2 emission and oil use, but there is a trade-off between the reductions in CO2 emission and oil use. Bioelectricity from stand-alone plants replacing coal-based electricity reduced CO2 emission by 99 kg per GJ biomass input but gave no oil use reduction. Stand-alone produced methanol replacing diesel reduced the CO2 emission with 38 kg and the oil use with 0.67 GJ per GJ biomass, indicating that a potential CO2 emission reduction of 90 kg is lost per GJ oil reduced. CO2 emission and oil use reduction for alternatives co-producing fuel and electricity fall between the stand-alone alternatives. Plug-in hybrid-electric vehicles using bioelectricity reduced CO2 emission by 75–88 kg and oil use by 0.99–1.2 GJ, per GJ biomass input. Biomass can also reduce CO2 emission and/or oil use more efficiently if fossil-fuel-fired boilers or electric heating is replaced by district heating from biomass-based combined heat and power generation. This is also true if electricity or motor fuel is produced from black liquor gasification in pulp mills or if wood is used instead of concrete in building construction. Biomass gasification is an important technology to achieve large reductions, irrespective of whether CO2 emission or oil use reduction is prioritised.

     

  • 17.
    Joelsson, Jonas M.
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Pingoud, Kim
    Soimakallio, S
    CO2 balance and oil use reduction of syngas-derived motor fuels co-produced in pulp and paper mills: 17th European Biomass Conference & Exhibition, Hamburg, Germany, 29 June - 3 July2009Conference paper (Refereed)
  • 18.
    Joelsson, Jonas M.
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Gustavsson, Leif
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Pingoud, Kim
    VTT Technical Research Centre of Finland.
    Soimakallio, Sampo
    VTT Technical Research Centre of Finland.
    Motor fuel production integrated with pulp mills – CO2 balance and oil use reduction for solid biomass gasification and black liquor gasification alternatives2009In: 2nd Nordic wood biorefinery conference, Helsinki, Finland, September 2–4, 2009Conference paper (Other academic)
    Abstract [en]

    We study biomass-based motor fuel production integrated with pulp and paper mills and calculate oil use and CO2 emission balances. We compare two different processes – (1) integration of solid biomass gasification and FT diesel synthesis with a mill and (2) black liquor gasification (BLG) and methanol synthesis. CO2 emission and oil use balances are calculated and compared to alternative uses of biomass. We conclude that motor fuel production integrated with pulp mills is a more efficient option than stand-alone production of motor fuels. However, CO2 emissions can be more efficiently reduced if biomass replaces coal. BLG and solid biomass gasification have high system efficiencies. In a modern mill with low steam demand, the integration potential for solid biomass gasification is limited. If the studied systems are expanded with stand-alone production of fuel, so that the systems produce the same amount of motor fuel per t pulp, the BLG system has higher system efficiency due to the larger integration potential per t pulp.

1 - 18 of 18
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