CO2-free paper?
Document identifier: oai:dalea.du.se:1078
Keyword: Climate change; Greenhouse gas emissions; Paper; Black liquor; GasificationPublication year: 2004Relevant Sustainable Development Goals (SDGs):

The SDG label(s) above have been assigned by OSDG.aiAbstract: Black liquor gasification–combined cycle (BLGCC) is a new technology that has the potential to increase electricity production of a chemical pulping mill. Increased electricity generation in combination with the potential to use biomass (e.g. bark, hog fuel) more efficiently can result in increased power output compared to the conventional Tomlinson-boiler. Because the BLGCC enables an integrated pulp and paper mill to produce excess power, it can offset electricity produced by power plants. This may lead to reduction of the net-CO2 emissions. The impact of BLGCC to offset CO2 emissions from the pulp and paper industry is studied. We focus on two different plant designs and compare the situation in Sweden and the US. The CO2 emissions are studied as function of the share of recycled fibre used to make the paper. The study shows that under specific conditions the production of “CO2-free paper” is possible. First, energy efficiency in pulp and paper mills needs to be improved to allow the export of sufficient power to offset emissions from fossil fuels used in boilers and other equipment. Secondly, the net-CO2 emission per ton of paper depends strongly on the emission reduction credits for electricity export, and hence on the country or grid to which the paper mill is connected. Thirdly, supplemental use of biomass to replace fossil fuel inputs is important to reduce the overall emissions of the pulp and paper industry.
Authors
Sara Farahani
Other publications
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Ernst Worrell
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Göran Bryntse
Högskolan Dalarna; Grafisk teknik
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header:
identifier: oai:dalea.du.se:1078
datestamp: 2021-04-15T13:13:47Z
setSpec: SwePub-du
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recordContentSource: du
recordCreationDate: 2005-05-13
identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-1078
titleInfo:
@attributes:
lang: eng
title: CO2-free paper?
abstract: Black liquor gasification–combined cycle (BLGCC) is a new technology that has the potential to increase electricity production of a chemical pulping mill. Increased electricity generation in combination with the potential to use biomass (e.g. bark hog fuel) more efficiently can result in increased power output compared to the conventional Tomlinson-boiler. Because the BLGCC enables an integrated pulp and paper mill to produce excess power it can offset electricity produced by power plants. This may lead to reduction of the net-CO2 emissions. The impact of BLGCC to offset CO2 emissions from the pulp and paper industry is studied. We focus on two different plant designs and compare the situation in Sweden and the US. The CO2 emissions are studied as function of the share of recycled fibre used to make the paper. The study shows that under specific conditions the production of “CO2-free paper” is possible. First energy efficiency in pulp and paper mills needs to be improved to allow the export of sufficient power to offset emissions from fossil fuels used in boilers and other equipment. Secondly the net-CO2 emission per ton of paper depends strongly on the emission reduction credits for electricity export and hence on the country or grid to which the paper mill is connected. Thirdly supplemental use of biomass to replace fossil fuel inputs is important to reduce the overall emissions of the pulp and paper industry.
subject:
@attributes:
lang: eng
topic: climate change; Greenhouse gas emissions; Paper; Black liquor; Gasification
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
3
name:
@attributes:
type: personal
namePart:
Farahani
Sara
role:
roleTerm: aut
@attributes:
type: personal
namePart:
Worrell
Ernst
role:
roleTerm: aut
@attributes:
type: personal
authority: du
namePart:
Bryntse
Göran
role:
roleTerm: aut
affiliation:
Högskolan Dalarna
Grafisk teknik
nameIdentifier: gbr
originInfo:
dateIssued: 2004
publisher: Elsevier
relatedItem:
@attributes:
type: host
titleInfo:
title: Resources Conservation and Recycling
identifier:
0921-3449
1879-0658
part:
detail:
@attributes:
type: volume
number: 42
extent:
start: 317
end: 336
physicalDescription:
form: print
typeOfResource: text