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Reductions in greenhouse gas emissions and oil use by DME (di-methyl ether) and FT (Fischer-Tropsch) diesel production in chemical pulp mills
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
Linnaeus Univ, SE-35195 Vaxjo, Sweden.
2012 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 39, no 1, p. 363-374Article in journal (Refereed) Published
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.

Place, publisher, year, edition, pages
2012. Vol. 39, no 1, p. 363-374
Keywords [en]
Biorefineries; Black liquor gasification; CO 2 emission reduction; Motor biofuels; Oil use reduction
National Category
Environmental Engineering
Identifiers
URN: urn:nbn:se:miun:diva-16740DOI: 10.1016/j.energy.2012.01.001ISI: 000302386400040Scopus ID: 2-s2.0-84857691649OAI: oai:DiVA.org:miun-16740DiVA, id: diva2:545670
Available from: 2012-08-21 Created: 2012-08-17 Last updated: 2017-12-07Bibliographically approved

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Joelsson, Jonas M.Gustavsson, L

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